diff --git a/src/Microsoft.Graph/Generated/Admin/AdminRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/AdminRequestBuilder.cs
index bb2c2f2ba75..7abf9aaa4a1 100644
--- a/src/Microsoft.Graph/Generated/Admin/AdminRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/AdminRequestBuilder.cs
@@ -110,7 +110,7 @@ public AdminRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Admin> PatchAsync(global::Microsoft.Graph.Models.Admin body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Admin body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/EdgeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/EdgeRequestBuilder.cs
index c0f13b6879f..5f7c3525841 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/EdgeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/EdgeRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Edge> PatchAsync(global::Microsoft.Graph.Models.Edge body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Edge body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/InternetExplorerModeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/InternetExplorerModeRequestBuilder.cs
index e527748c734..a13a429fc4e 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/InternetExplorerModeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/InternetExplorerModeRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.InternetExplorerMode> PatchAsync(global::Microsoft.Graph.Models.InternetExplorerMode body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InternetExplorerMode body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/BrowserSiteListItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/BrowserSiteListItemRequestBuilder.cs
index 2dacdb2570f..fc1a7f31a43 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/BrowserSiteListItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/BrowserSiteListItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BrowserSiteList> PatchAsync(global::Microsoft.Graph.Models.BrowserSiteList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BrowserSiteList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishPostRequestBody.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishPostRequestBody.cs
index c57bfecd637..d5b7fb39fde 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishPostRequestBody.cs
@@ -85,7 +85,7 @@ public PublishPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.Edge.InternetExplorerMode.SiteLists.Item.Publish.PublishPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.Edge.InternetExplorerMode.SiteLists.Item.Publish.PublishPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("revision", Revision);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BrowserSharedCookie>("sharedCookies", SharedCookies);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BrowserSite>("sites", Sites);
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishRequestBuilder.cs
index bb4aaf3c4b5..aaf6925f550 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Publish/PublishRequestBuilder.cs
@@ -51,7 +51,7 @@ public PublishRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.BrowserSiteList> PostAsync(global::Microsoft.Graph.Admin.Edge.InternetExplorerMode.SiteLists.Item.Publish.PublishPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin.Edge.InternetExplorerMode.SiteLists.Item.Publish.PublishPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/Item/BrowserSharedCookieItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/Item/BrowserSharedCookieItemRequestBuilder.cs
index 1b19e56289b..7624985d0b9 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/Item/BrowserSharedCookieItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/Item/BrowserSharedCookieItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BrowserSharedCookie> PatchAsync(global::Microsoft.Graph.Models.BrowserSharedCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BrowserSharedCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/SharedCookiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/SharedCookiesRequestBuilder.cs
index 70a8932ee17..983a7d9f4e0 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/SharedCookiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/SharedCookies/SharedCookiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public SharedCookiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.BrowserSharedCookie> PostAsync(global::Microsoft.Graph.Models.BrowserSharedCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BrowserSharedCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/Item/BrowserSiteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/Item/BrowserSiteItemRequestBuilder.cs
index eac1ea91f41..13a8357ea0a 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/Item/BrowserSiteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/Item/BrowserSiteItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BrowserSite> PatchAsync(global::Microsoft.Graph.Models.BrowserSite body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BrowserSite body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/SitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/SitesRequestBuilder.cs
index 2528a5fca0d..eff7752d95d 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/SitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/Item/Sites/SitesRequestBuilder.cs
@@ -95,7 +95,7 @@ public SitesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.BrowserSite> PostAsync(global::Microsoft.Graph.Models.BrowserSite body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BrowserSite body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/SiteListsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/SiteListsRequestBuilder.cs
index 745fa8bdaad..f47c3954c98 100644
--- a/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/SiteListsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Edge/InternetExplorerMode/SiteLists/SiteListsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SiteListsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.BrowserSiteList> PostAsync(global::Microsoft.Graph.Models.BrowserSiteList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BrowserSiteList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/InstallationOptions/InstallationOptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/InstallationOptions/InstallationOptionsRequestBuilder.cs
index 43e6baa7d4d..9914cc24a69 100644
--- a/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/InstallationOptions/InstallationOptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/InstallationOptions/InstallationOptionsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.M365AppsInstallationOptions> PatchAsync(global::Microsoft.Graph.Models.M365AppsInstallationOptions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.M365AppsInstallationOptions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/Microsoft365AppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/Microsoft365AppsRequestBuilder.cs
index 4240edc6f3f..262ca717614 100644
--- a/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/Microsoft365AppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Microsoft365Apps/Microsoft365AppsRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AdminMicrosoft365Apps> PatchAsync(global::Microsoft.Graph.Models.AdminMicrosoft365Apps body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AdminMicrosoft365Apps body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/People/ItemInsights/ItemInsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/People/ItemInsights/ItemInsightsRequestBuilder.cs
index ffdaa8a3fdf..45eaab70a2f 100644
--- a/src/Microsoft.Graph/Generated/Admin/People/ItemInsights/ItemInsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/People/ItemInsights/ItemInsightsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.InsightsSettings> PatchAsync(global::Microsoft.Graph.Models.InsightsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InsightsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/Item/ProfileCardPropertyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/Item/ProfileCardPropertyItemRequestBuilder.cs
index 3b38f563722..7bd05f31aff 100644
--- a/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/Item/ProfileCardPropertyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/Item/ProfileCardPropertyItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ProfileCardProperty> PatchAsync(global::Microsoft.Graph.Models.ProfileCardProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfileCardProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/ProfileCardPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/ProfileCardPropertiesRequestBuilder.cs
index e6a348cd562..748a183d5b8 100644
--- a/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/ProfileCardPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/People/ProfileCardProperties/ProfileCardPropertiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ProfileCardPropertiesRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.ProfileCardProperty> PostAsync(global::Microsoft.Graph.Models.ProfileCardProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ProfileCardProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/People/Pronouns/PronounsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/People/Pronouns/PronounsRequestBuilder.cs
index dd0407df268..13b337198e1 100644
--- a/src/Microsoft.Graph/Generated/Admin/People/Pronouns/PronounsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/People/Pronouns/PronounsRequestBuilder.cs
@@ -76,7 +76,7 @@ public PronounsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.PronounsSettings> PatchAsync(global::Microsoft.Graph.Models.PronounsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -118,7 +118,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PronounsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ReportSettings/ReportSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ReportSettings/ReportSettingsRequestBuilder.cs
index 4dbaff432e9..0e70db6ea97 100644
--- a/src/Microsoft.Graph/Generated/Admin/ReportSettings/ReportSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ReportSettings/ReportSettingsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AdminReportSettings> PatchAsync(global::Microsoft.Graph.Models.AdminReportSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AdminReportSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/HealthOverviewsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/HealthOverviewsRequestBuilder.cs
index 3b04d4a808f..11891a6794d 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/HealthOverviewsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/HealthOverviewsRequestBuilder.cs
@@ -94,7 +94,7 @@ public HealthOverviewsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.ServiceHealth> PostAsync(global::Microsoft.Graph.Models.ServiceHealth body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceHealth body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/IssuesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/IssuesRequestBuilder.cs
index 4367b00ad72..a4368ae114e 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/IssuesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/IssuesRequestBuilder.cs
@@ -93,7 +93,7 @@ public IssuesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ServiceHealthIssue> PostAsync(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs
index 2d2843d869c..ce32fe30b05 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceHealthIssue> PatchAsync(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/ServiceHealthItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/ServiceHealthItemRequestBuilder.cs
index 160fa572ca1..3aeee0a114e 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/ServiceHealthItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/HealthOverviews/Item/ServiceHealthItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceHealth> PatchAsync(global::Microsoft.Graph.Models.ServiceHealth body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceHealth body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/IssuesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/IssuesRequestBuilder.cs
index 4b743db86bf..a9165ac527a 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/IssuesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/IssuesRequestBuilder.cs
@@ -94,7 +94,7 @@ public IssuesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ServiceHealthIssue> PostAsync(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs
index 0d18eb1f5f2..6ae4ab02370 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Issues/Item/ServiceHealthIssueItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceHealthIssue> PatchAsync(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceHealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostRequestBody.cs
index 8db8ba40aa5..a964c76880d 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostRequestBody.cs
@@ -52,7 +52,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("messageIds", MessageIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostResponse.cs
index d8e682147b1..535a72ad964 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchivePostResponse.cs
@@ -42,7 +42,7 @@ public ArchivePostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveRequestBuilder.cs
index 820b68e7fb1..d47a20ce7a7 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveRequestBuilder.cs
@@ -51,7 +51,7 @@ public ArchiveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostResponse> PostAsArchivePostResponseAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public ArchiveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchiveResponse> PostAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveResponse.cs
index 8545518aa7a..5e3206a77f9 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Archive/ArchiveResponse.cs
@@ -20,7 +20,7 @@ public partial class ArchiveResponse : global::Microsoft.Graph.Admin.ServiceAnno
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchiveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Archive.ArchiveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostRequestBody.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostRequestBody.cs
index 79f8e5acc38..23ee67cbc4a 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostRequestBody.cs
@@ -52,7 +52,7 @@ public FavoritePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("messageIds", MessageIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostResponse.cs
index 5d15fd4ff00..29b132f7674 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoritePostResponse.cs
@@ -42,7 +42,7 @@ public FavoritePostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteRequestBuilder.cs
index 514f7d7453d..fbb78730047 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteRequestBuilder.cs
@@ -51,7 +51,7 @@ public FavoriteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostResponse> PostAsFavoritePostResponseAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public FavoriteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoriteResponse> PostAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoritePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteResponse.cs
index af20983ae2c..6129a6bb1d1 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Favorite/FavoriteResponse.cs
@@ -20,7 +20,7 @@ public partial class FavoriteResponse : global::Microsoft.Graph.Admin.ServiceAnn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoriteResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Favorite.FavoriteResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
index ba433514163..67685381962 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ServiceAnnouncementAttachment> PostAsync(global::Microsoft.Graph.Models.ServiceAnnouncementAttachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceAnnouncementAttachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/Content/ContentRequestBuilder.cs
index 6db4bbb0426..a72392cbc5a 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/Content/ContentRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.ServiceAnnouncementAttachment> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/ServiceAnnouncementAttachmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/ServiceAnnouncementAttachmentItemRequestBuilder.cs
index 9e63ac0f487..fc3c0c4798e 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/ServiceAnnouncementAttachmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/Attachments/Item/ServiceAnnouncementAttachmentItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceAnnouncementAttachment> PatchAsync(global::Microsoft.Graph.Models.ServiceAnnouncementAttachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceAnnouncementAttachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/AttachmentsArchive/AttachmentsArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/AttachmentsArchive/AttachmentsArchiveRequestBuilder.cs
index 3f499ad5e1e..6fcec8afabd 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/AttachmentsArchive/AttachmentsArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/AttachmentsArchive/AttachmentsArchiveRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/ServiceUpdateMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/ServiceUpdateMessageItemRequestBuilder.cs
index a27539717cf..a4a3e8a87f9 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/ServiceUpdateMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Item/ServiceUpdateMessageItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceUpdateMessage> PatchAsync(global::Microsoft.Graph.Models.ServiceUpdateMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceUpdateMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostRequestBody.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostRequestBody.cs
index dc370fee8b3..df273f6e2d0 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostRequestBody.cs
@@ -52,7 +52,7 @@ public MarkReadPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("messageIds", MessageIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostResponse.cs
index c222905085a..236070f90f6 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadPostResponse.cs
@@ -42,7 +42,7 @@ public MarkReadPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadRequestBuilder.cs
index 6e69c0b9b21..820d65ce4a3 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadRequestBuilder.cs
@@ -51,7 +51,7 @@ public MarkReadRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostResponse> PostAsMarkReadPostResponseAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public MarkReadRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadResponse> PostAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadResponse.cs
index b7172cd123c..12a071dd4b9 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkRead/MarkReadResponse.cs
@@ -20,7 +20,7 @@ public partial class MarkReadResponse : global::Microsoft.Graph.Admin.ServiceAnn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkRead.MarkReadResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostRequestBody.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostRequestBody.cs
index fa8836fce16..25eb3a33139 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostRequestBody.cs
@@ -52,7 +52,7 @@ public MarkUnreadPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("messageIds", MessageIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostResponse.cs
index 5deca0c1b5d..c4dbd5f3500 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadPostResponse.cs
@@ -42,7 +42,7 @@ public MarkUnreadPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadRequestBuilder.cs
index 47ff2916db4..70e67a33cc7 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadRequestBuilder.cs
@@ -51,7 +51,7 @@ public MarkUnreadRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostResponse> PostAsMarkUnreadPostResponseAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public MarkUnreadRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadResponse> PostAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadResponse.cs
index 359e6caa2de..ff56c42e781 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MarkUnread/MarkUnreadResponse.cs
@@ -20,7 +20,7 @@ public partial class MarkUnreadResponse : global::Microsoft.Graph.Admin.ServiceA
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.MarkUnread.MarkUnreadResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MessagesRequestBuilder.cs
index 70f8a2474b8..a2c2d9be9d5 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/MessagesRequestBuilder.cs
@@ -130,7 +130,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ServiceUpdateMessage> PostAsync(global::Microsoft.Graph.Models.ServiceUpdateMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceUpdateMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostRequestBody.cs
index 23458a47c5f..cdb9f037b00 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostRequestBody.cs
@@ -52,7 +52,7 @@ public UnarchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("messageIds", MessageIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostResponse.cs
index 61aae0daafb..b58a4e11193 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchivePostResponse.cs
@@ -42,7 +42,7 @@ public UnarchivePostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveRequestBuilder.cs
index 1d57360ce85..3d3dab58dc8 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveRequestBuilder.cs
@@ -51,7 +51,7 @@ public UnarchiveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostResponse> PostAsUnarchivePostResponseAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public UnarchiveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchiveResponse> PostAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveResponse.cs
index c737b759568..d03faa50fe1 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unarchive/UnarchiveResponse.cs
@@ -20,7 +20,7 @@ public partial class UnarchiveResponse : global::Microsoft.Graph.Admin.ServiceAn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchiveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unarchive.UnarchiveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostRequestBody.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostRequestBody.cs
index 0def342f0f6..210e3c74c57 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostRequestBody.cs
@@ -52,7 +52,7 @@ public UnfavoritePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("messageIds", MessageIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostResponse.cs
index 22ec3b21ae9..ce9ef43d8f7 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoritePostResponse.cs
@@ -42,7 +42,7 @@ public UnfavoritePostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteRequestBuilder.cs
index 3c908e84cc7..9585788a886 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteRequestBuilder.cs
@@ -51,7 +51,7 @@ public UnfavoriteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostResponse> PostAsUnfavoritePostResponseAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public UnfavoriteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoriteResponse> PostAsync(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoritePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteResponse.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteResponse.cs
index 46b19fcf302..8ef45933956 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteResponse.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/Messages/Unfavorite/UnfavoriteResponse.cs
@@ -20,7 +20,7 @@ public partial class UnfavoriteResponse : global::Microsoft.Graph.Admin.ServiceA
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoriteResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Admin.ServiceAnnouncement.Messages.Unfavorite.UnfavoriteResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/ServiceAnnouncementRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/ServiceAnnouncementRequestBuilder.cs
index 6491d6c82e8..2f9f31c8715 100644
--- a/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/ServiceAnnouncementRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/ServiceAnnouncement/ServiceAnnouncementRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceAnnouncement> PatchAsync(global::Microsoft.Graph.Models.ServiceAnnouncement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceAnnouncement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Sharepoint/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Sharepoint/Settings/SettingsRequestBuilder.cs
index c2608ab79e7..34062ea91c7 100644
--- a/src/Microsoft.Graph/Generated/Admin/Sharepoint/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Sharepoint/Settings/SettingsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharepointSettings> PatchAsync(global::Microsoft.Graph.Models.SharepointSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharepointSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Admin/Sharepoint/SharepointRequestBuilder.cs b/src/Microsoft.Graph/Generated/Admin/Sharepoint/SharepointRequestBuilder.cs
index 681a94ce7e0..d5f24d77317 100644
--- a/src/Microsoft.Graph/Generated/Admin/Sharepoint/SharepointRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Admin/Sharepoint/SharepointRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Sharepoint> PatchAsync(global::Microsoft.Graph.Models.Sharepoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Sharepoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs
index 4a286e6a895..82fb9447386 100644
--- a/src/Microsoft.Graph/Generated/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs
@@ -87,7 +87,7 @@ public AgreementAcceptancesRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PostAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
index 2d3d95a2d25..e3b29cfb3f5 100644
--- a/src/Microsoft.Graph/Generated/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PatchAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/AgreementsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/AgreementsRequestBuilder.cs
index e9321b0157f..b6e9710aad3 100644
--- a/src/Microsoft.Graph/Generated/Agreements/AgreementsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/AgreementsRequestBuilder.cs
@@ -87,7 +87,7 @@ public AgreementsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Agreement> PostAsync(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs
index baef344276e..84119f93768 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs
@@ -93,7 +93,7 @@ public AcceptancesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PostAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
index 674c990f991..ae9996b0768 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PatchAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/AgreementItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/AgreementItemRequestBuilder.cs
index fbb6bb49f7f..bf120e84bde 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/AgreementItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/AgreementItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Agreement> PatchAsync(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/FileRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/FileRequestBuilder.cs
index a3689605207..dd0bea5973b 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/FileRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/FileRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFile> PatchAsync(global::Microsoft.Graph.Models.AgreementFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs
index 9885250bc09..4ceb2961f77 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PatchAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
index d7d6f1bfc58..242e392c036 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PatchAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs
index ccebc3a49bf..08b47d39b60 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PostAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs
index 9995741c74e..8933f264dd1 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs
@@ -94,7 +94,7 @@ public LocalizationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PostAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/Files/FilesRequestBuilder.cs
index a3bad86a65b..c86ff9e322b 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PostAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs
index 73a2679cb67..1c7cb06e5b8 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PatchAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
index 4a141e908b7..3e11c751400 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PatchAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs
index 6d943a362ff..0f60eee145b 100644
--- a/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PostAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AppCatalogs/AppCatalogsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AppCatalogs/AppCatalogsRequestBuilder.cs
index 11af5fc16da..2f8bca60f4c 100644
--- a/src/Microsoft.Graph/Generated/AppCatalogs/AppCatalogsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AppCatalogs/AppCatalogsRequestBuilder.cs
@@ -80,7 +80,7 @@ public AppCatalogsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AppCatalogs> PatchAsync(global::Microsoft.Graph.Models.AppCatalogs body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppCatalogs body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/AppDefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/AppDefinitionsRequestBuilder.cs
index c6ad85fa1cc..0ba12ab1bf9 100644
--- a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/AppDefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/AppDefinitionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AppDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.TeamsAppDefinition> PostAsync(global::Microsoft.Graph.Models.TeamsAppDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/Bot/BotRequestBuilder.cs b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/Bot/BotRequestBuilder.cs
index dbdd2bd6bd0..1eb13cd2924 100644
--- a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/Bot/BotRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/Bot/BotRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkBot> PatchAsync(global::Microsoft.Graph.Models.TeamworkBot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkBot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/TeamsAppDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/TeamsAppDefinitionItemRequestBuilder.cs
index 09c2182703b..3eca6acdb38 100644
--- a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/TeamsAppDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/AppDefinitions/Item/TeamsAppDefinitionItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppDefinition> PatchAsync(global::Microsoft.Graph.Models.TeamsAppDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/TeamsAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/TeamsAppItemRequestBuilder.cs
index cbf377ff864..af758c4a4c4 100644
--- a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/TeamsAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/Item/TeamsAppItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsApp> PatchAsync(global::Microsoft.Graph.Models.TeamsApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/TeamsAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/TeamsAppsRequestBuilder.cs
index b939a84e0ca..4696ed6754b 100644
--- a/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/TeamsAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AppCatalogs/TeamsApps/TeamsAppsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TeamsAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TeamsApp> PostAsync(global::Microsoft.Graph.Models.TeamsApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiatePostRequestBody.cs b/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiatePostRequestBody.cs
index d1c4eed1d8d..0f27fdf574f 100644
--- a/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiatePostRequestBody.cs
@@ -68,7 +68,7 @@ public InstantiatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ApplicationTemplates.Item.Instantiate.InstantiatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ApplicationTemplates.Item.Instantiate.InstantiatePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("serviceManagementReference", ServiceManagementReference);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiateRequestBuilder.cs b/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiateRequestBuilder.cs
index 58a70e02e46..6ef754e1f97 100644
--- a/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ApplicationTemplates/Item/Instantiate/InstantiateRequestBuilder.cs
@@ -52,7 +52,7 @@ public InstantiateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ApplicationServicePrincipal> PostAsync(global::Microsoft.Graph.ApplicationTemplates.Item.Instantiate.InstantiatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ApplicationTemplates.Item.Instantiate.InstantiatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/ApplicationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/ApplicationsRequestBuilder.cs
index f03d546afdd..f536aed98ba 100644
--- a/src/Microsoft.Graph/Generated/Applications/ApplicationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/ApplicationsRequestBuilder.cs
@@ -119,7 +119,7 @@ public ApplicationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Application> PostAsync(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Applications/Delta/DeltaGetResponse.cs
index 4f374f5d3a1..ceabc699104 100644
--- a/src/Microsoft.Graph/Generated/Applications/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Application>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Applications/Delta/DeltaResponse.cs
index e20d21afe52..c17f60ae48a 100644
--- a/src/Microsoft.Graph/Generated/Applications/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Applications.Delta.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 8345164b760..1492344e692 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 71053a20ab6..2817fbf7d2b 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 2af4519fa2f..fd9a4fac665 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 3c5450e8c5c..d5ee924c229 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostRequestBody.cs
index 64aac5c2f65..bfa8547246d 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostResponse.cs
index f004a8d941e..200c714fc0d 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsRequestBuilder.cs
index 86da51aee9a..852a1e7559f 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Applications.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsResponse.cs
index f0bc266ab55..e9eaf45ff3b 100644
--- a/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.Applications.Get
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyPostRequestBody.cs
index a3799c7eb54..7a8d181e88e 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyPostRequestBody.cs
@@ -85,7 +85,7 @@ public AddKeyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.AddKey.AddKeyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.AddKey.AddKeyPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.KeyCredential>("keyCredential", KeyCredential);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PasswordCredential>("passwordCredential", PasswordCredential);
             writer.WriteStringValue("proof", Proof);
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyRequestBuilder.cs
index 4f7529377ed..ff9aaf32ae6 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/AddKey/AddKeyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddKeyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.KeyCredential> PostAsync(global::Microsoft.Graph.Applications.Item.AddKey.AddKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.AddKey.AddKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordPostRequestBody.cs
index 1429cab3f12..d5162892b14 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.AddPassword.AddPasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.AddPassword.AddPasswordPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PasswordCredential>("passwordCredential", PasswordCredential);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordRequestBuilder.cs
index cc6646cc79f..961f0b9e001 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/AddPassword/AddPasswordRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddPasswordRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.PasswordCredential> PostAsync(global::Microsoft.Graph.Applications.Item.AddPassword.AddPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.AddPassword.AddPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/AppManagementPolicies/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/AppManagementPolicies/Ref/RefRequestBuilder.cs
index ea6dd113be4..2e6fa4f5e1a 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/AppManagementPolicies/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/AppManagementPolicies/Ref/RefRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/applications/{application%2Did}/appManagementPolicies/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/ApplicationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/ApplicationItemRequestBuilder.cs
index 6d735d2f922..4af99f74515 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/ApplicationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/ApplicationItemRequestBuilder.cs
@@ -236,7 +236,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Application> PatchAsync(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -297,7 +297,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 7701ce57c12..bbcaf7d5401 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 47971876542..eb6e9c258bb 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 7e73c9f78c6..b582661799c 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index ce555d95f91..1d3ead8950f 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Applica
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index aa304a8f3a9..8aae49a2391 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 087ed6a7a62..d9980fd4f0e 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 84e8bff06b5..e9503a0b8ba 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 4ac7d702fa2..dd115b121e2 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Applic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/ExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/ExtensionPropertiesRequestBuilder.cs
index db36a124e07..d27e29d4854 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/ExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/ExtensionPropertiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.ExtensionProperty> PostAsync(global::Microsoft.Graph.Models.ExtensionProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExtensionProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/Item/ExtensionPropertyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/Item/ExtensionPropertyItemRequestBuilder.cs
index edc8d3f7286..810e0f3f1f2 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/Item/ExtensionPropertyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/ExtensionProperties/Item/ExtensionPropertyItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExtensionProperty> PatchAsync(global::Microsoft.Graph.Models.ExtensionProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExtensionProperty body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs
index e3605f04488..80dab8fa20d 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs
@@ -95,7 +95,7 @@ public FederatedIdentityCredentialsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.FederatedIdentityCredential> PostAsync(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs
index 093de8d948a..c6a33a548d1 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FederatedIdentityCredential> PatchAsync(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs
index 78d0655ba1d..70e1b267f66 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs
@@ -101,7 +101,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FederatedIdentityCredential> PatchAsync(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index 08af6047f87..da96837c4b3 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 6596cefdf6c..290b1a02bb3 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 673827b5244..79e397a7e5d 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 3431d70c953..51fb567cd58 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Applicati
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 9d3668f6c06..9483f84df63 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index da229d5f7bb..3a5cbdd58e3 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index ed06bfdb498..a33a3f3e40c 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index e758351a62a..16d72d67b09 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Applicat
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Logo/LogoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Logo/LogoRequestBuilder.cs
index 67b306ae839..5ce6cb37d57 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Logo/LogoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Logo/LogoRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Owners/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Owners/Ref/RefRequestBuilder.cs
index 36513fbcb87..9c683c3f44c 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Owners/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Owners/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/applications/{application%2Did}/owners/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyPostRequestBody.cs
index a9d2a265d0a..935003a3e57 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyPostRequestBody.cs
@@ -58,7 +58,7 @@ public RemoveKeyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.RemoveKey.RemoveKeyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.RemoveKey.RemoveKeyPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteGuidValue("keyId", KeyId);
             writer.WriteStringValue("proof", Proof);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyRequestBuilder.cs
index ac9b083c979..3a5d2c5bd60 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/RemoveKey/RemoveKeyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.Item.RemoveKey.
         public async Task PostAsync(global::Microsoft.Graph.Applications.Item.RemoveKey.RemoveKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.RemoveKey.RemoveKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordPostRequestBody.cs
index 86f2c083b80..9a2ba92a2d1 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordPostRequestBody.cs
@@ -42,7 +42,7 @@ public RemovePasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.RemovePassword.RemovePasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.RemovePassword.RemovePasswordPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteGuidValue("keyId", KeyId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordRequestBuilder.cs
index 6c17c160f86..543b606be38 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/RemovePassword/RemovePasswordRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.Item.RemovePass
         public async Task PostAsync(global::Microsoft.Graph.Applications.Item.RemovePassword.RemovePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.RemovePassword.RemovePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherPostRequestBody.cs
index a28856a055e..6ba63c90453 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetVerifiedPublisherPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.SetVerifiedPublisher.SetVerifiedPublisherPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.SetVerifiedPublisher.SetVerifiedPublisherPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("verifiedPublisherId", VerifiedPublisherId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherRequestBuilder.cs
index 0a4d35ed09f..4284d8701f0 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/SetVerifiedPublisher/SetVerifiedPublisherRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.Item.SetVerifie
         public async Task PostAsync(global::Microsoft.Graph.Applications.Item.SetVerifiedPublisher.SetVerifiedPublisherPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.SetVerifiedPublisher.SetVerifiedPublisherPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs
index ed81b85a257..c92ef2fa0b3 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs
@@ -53,7 +53,7 @@ public AcquireAccessTokenPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("credentials", Credentials);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs
index 091ee154859..1d293afd08b 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchroniz
         public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs
index 9c1ebdb4966..728d6c3306b 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BulkUpload> PatchAsync(global::Microsoft.Graph.Models.BulkUpload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BulkUpload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs
index 75ef5cca84e..b3e60c1e984 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs
index 0738f121530..f2b55aee95a 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs
@@ -53,7 +53,7 @@ public ProvisionOnDemandPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationJobApplicationParameters>("parameters", Parameters);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs
index d1bbb9f0890..ab8c897ef0b 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs
@@ -52,7 +52,7 @@ public ProvisionOnDemandRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.StringKeyStringValuePair> PostAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs
index 4bea40fb9ec..63ed97a9f3a 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs
@@ -53,7 +53,7 @@ public RestartPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SynchronizationJobRestartCriteria>("criteria", Criteria);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs
index 4db49ef1d5c..51203fb53e6 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchroniz
         public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs
index e9b2ed2fe2a..96056031cb7 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DirectoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PostAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
index 3b0bf98759b..2b5ff042728 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PatchAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
index d40ba9d2ea6..f4bc62f1577 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterOperatorsGetResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterOperatorSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
index 9496d857c36..9cd94c905d4 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterOperatorsResponse : global::Microsoft.Graph.Applicati
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs
index c6ec531e449..20ac93da080 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FunctionsGetResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeMappingFunctionSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs
index 06d11a87884..1d8d7fac639 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs
@@ -20,7 +20,7 @@ public partial class FunctionsResponse : global::Microsoft.Graph.Applications.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
index 4458f7d1c9d..1e393027bf8 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
@@ -85,7 +85,7 @@ public ParseExpressionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("expression", Expression);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttributeDefinition>("targetAttributeDefinition", TargetAttributeDefinition);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExpressionInputObject>("testInputObject", TestInputObject);
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
index 44eb73794da..1efd68ee171 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
@@ -52,7 +52,7 @@ public ParseExpressionRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.ParseExpressionResponse> PostAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs
index 90eda713f98..05fda3b7875 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationSchema> PatchAsync(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs
index a5b38ad4ab8..80521cba148 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationJob> PatchAsync(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
index 7fe43942517..ad245dd2445 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
@@ -91,7 +91,7 @@ public ValidateCredentialsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationIdentifier", ApplicationIdentifier);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("credentials", Credentials);
             writer.WriteStringValue("templateId", TemplateId);
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
index 5e230ef9efc..0f9a6c7306a 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchroniz
         public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/JobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/JobsRequestBuilder.cs
index 7f52268e486..998ded0cd32 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/JobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/JobsRequestBuilder.cs
@@ -99,7 +99,7 @@ public JobsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.SynchronizationJob> PostAsync(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
index 1ba6ddb9f23..4e333d671c8 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
@@ -91,7 +91,7 @@ public ValidateCredentialsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationIdentifier", ApplicationIdentifier);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("credentials", Credentials);
             writer.WriteStringValue("templateId", TemplateId);
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
index d7f50284465..90f8d6d83f0 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchroniz
         public async Task PostAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutRequestBody.cs
index 7c03e0ba3a6..527eab94c21 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutRequestBody.cs
@@ -53,7 +53,7 @@ public SecretsPutRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutResponse.cs
index a4822b821aa..f8d8c269852 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsPutResponse.cs
@@ -53,7 +53,7 @@ public SecretsPutResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutResponse();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsRequestBuilder.cs
index 75eca6b5778..4c2d04acf95 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsRequestBuilder.cs
@@ -56,7 +56,7 @@ public SecretsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutResponse> PutAsSecretsPutResponseAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -82,7 +82,7 @@ public SecretsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsResponse> PutAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -105,7 +105,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Applic
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsPutRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsResponse.cs
index 9c16268d4e9..30be31a241d 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Secrets/SecretsResponse.cs
@@ -20,7 +20,7 @@ public partial class SecretsResponse : global::Microsoft.Graph.Applications.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Secrets.SecretsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/SynchronizationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/SynchronizationRequestBuilder.cs
index 301e8b68802..a5cfb823653 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/SynchronizationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/SynchronizationRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Synchronization> PutAsync(global::Microsoft.Graph.Models.Synchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.Synchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs
index 53cfb20775d..8dda7d51074 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DirectoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PostAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
index aad3049c218..921623c55fb 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PatchAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
index 63cda858ff0..641a7615c92 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterOperatorsGetResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterOperatorSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
index 9a61c2db87f..2e5eb918577 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterOperatorsResponse : global::Microsoft.Graph.Applicati
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs
index 422f8127e05..b9378fef0d0 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FunctionsGetResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeMappingFunctionSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs
index 01e030e9390..8301af810a2 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs
@@ -20,7 +20,7 @@ public partial class FunctionsResponse : global::Microsoft.Graph.Applications.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
index bb1e5a8b5bb..d31bcc8e065 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
@@ -85,7 +85,7 @@ public ParseExpressionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("expression", Expression);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttributeDefinition>("targetAttributeDefinition", TargetAttributeDefinition);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExpressionInputObject>("testInputObject", TestInputObject);
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
index a67d70b7fc3..cd1509f5421 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
@@ -52,7 +52,7 @@ public ParseExpressionRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.ParseExpressionResponse> PostAsync(global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs
index 7ca01615cf6..f0666655ae8 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationSchema> PatchAsync(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs
index c1e95e55909..32dd1afe321 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationTemplate> PatchAsync(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/TemplatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/TemplatesRequestBuilder.cs
index d8f8ad8ea50..cb3547f6660 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/TemplatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/Synchronization/Templates/TemplatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public TemplatesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.SynchronizationTemplate> PostAsync(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs
index 3cb53bbe0f3..f66eab9207c 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/applications/{application%2Did}/tokenIssuancePolicies/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs
index b22d6012cf4..6f2f78f0cd2 100644
--- a/src/Microsoft.Graph/Generated/Applications/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/applications/{application%2Did}/tokenLifetimePolicies/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 1c5f0546378..8b3ee03c071 100644
--- a/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Applications.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Applications.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index 238b8f04b49..19144ef0c3e 100644
--- a/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Applications/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Applications.ValidatePropert
         public async Task PostAsync(global::Microsoft.Graph.Applications.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Appli
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Applications.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ApplicationsWithAppId/ApplicationsWithAppIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/ApplicationsWithAppId/ApplicationsWithAppIdRequestBuilder.cs
index 77ad5ccbb32..57fdfb99ec5 100644
--- a/src/Microsoft.Graph/Generated/ApplicationsWithAppId/ApplicationsWithAppIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ApplicationsWithAppId/ApplicationsWithAppIdRequestBuilder.cs
@@ -101,7 +101,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Application> PatchAsync(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ApplicationsWithUniqueName/ApplicationsWithUniqueNameRequestBuilder.cs b/src/Microsoft.Graph/Generated/ApplicationsWithUniqueName/ApplicationsWithUniqueNameRequestBuilder.cs
index 35ff560ebb1..363e4099394 100644
--- a/src/Microsoft.Graph/Generated/ApplicationsWithUniqueName/ApplicationsWithUniqueNameRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ApplicationsWithUniqueName/ApplicationsWithUniqueNameRequestBuilder.cs
@@ -101,7 +101,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Application> PatchAsync(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Application body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/AuditLogsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/AuditLogsRequestBuilder.cs
index 1a1058ae0f5..19f777d55fb 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/AuditLogsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/AuditLogsRequestBuilder.cs
@@ -92,7 +92,7 @@ public AuditLogsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AuditLogRoot> PatchAsync(global::Microsoft.Graph.Models.AuditLogRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -134,7 +134,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuditLogRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/DirectoryAuditsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/DirectoryAuditsRequestBuilder.cs
index 7ddfb503a01..cb7d2eb74a5 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/DirectoryAuditsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/DirectoryAuditsRequestBuilder.cs
@@ -94,7 +94,7 @@ public DirectoryAuditsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.DirectoryAudit> PostAsync(global::Microsoft.Graph.Models.DirectoryAudit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryAudit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/Item/DirectoryAuditItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/Item/DirectoryAuditItemRequestBuilder.cs
index 372647d8689..f3494de926d 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/Item/DirectoryAuditItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/DirectoryAudits/Item/DirectoryAuditItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryAudit> PatchAsync(global::Microsoft.Graph.Models.DirectoryAudit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryAudit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/Item/ProvisioningObjectSummaryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/Item/ProvisioningObjectSummaryItemRequestBuilder.cs
index e9535666054..8c09c4497fd 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/Item/ProvisioningObjectSummaryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/Item/ProvisioningObjectSummaryItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ProvisioningObjectSummary> PatchAsync(global::Microsoft.Graph.Models.ProvisioningObjectSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProvisioningObjectSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/ProvisioningRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/ProvisioningRequestBuilder.cs
index e1107d34b22..850832de788 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/ProvisioningRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/Provisioning/ProvisioningRequestBuilder.cs
@@ -94,7 +94,7 @@ public ProvisioningRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ProvisioningObjectSummary> PostAsync(global::Microsoft.Graph.Models.ProvisioningObjectSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ProvisioningObjectSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
index 1ffd82ec4db..93f5ac8b442 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
@@ -52,7 +52,7 @@ public ConfirmCompromisedPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.AuditLogs.SignIns.ConfirmCompromised.ConfirmCompromisedPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.AuditLogs.SignIns.ConfirmCompromised.ConfirmCompromisedPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("requestIds", RequestIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
index f6a2e0e72a1..6d6edc5c6b8 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.AuditLogs.SignIns.ConfirmCom
         public async Task PostAsync(global::Microsoft.Graph.AuditLogs.SignIns.ConfirmCompromised.ConfirmCompromisedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Audit
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.AuditLogs.SignIns.ConfirmCompromised.ConfirmCompromisedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafePostRequestBody.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafePostRequestBody.cs
index 1503abf181e..171e366d669 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafePostRequestBody.cs
@@ -52,7 +52,7 @@ public ConfirmSafePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.AuditLogs.SignIns.ConfirmSafe.ConfirmSafePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.AuditLogs.SignIns.ConfirmSafe.ConfirmSafePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("requestIds", RequestIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafeRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafeRequestBuilder.cs
index 932e8809e3c..af6e49a8f1a 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/ConfirmSafe/ConfirmSafeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.AuditLogs.SignIns.ConfirmSaf
         public async Task PostAsync(global::Microsoft.Graph.AuditLogs.SignIns.ConfirmSafe.ConfirmSafePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Audit
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.AuditLogs.SignIns.ConfirmSafe.ConfirmSafePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissPostRequestBody.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissPostRequestBody.cs
index 6c2722d88bd..75bdd1bd515 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissPostRequestBody.cs
@@ -52,7 +52,7 @@ public DismissPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.AuditLogs.SignIns.Dismiss.DismissPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.AuditLogs.SignIns.Dismiss.DismissPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("requestIds", RequestIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissRequestBuilder.cs
index 72ba1164b38..6459c94182d 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Dismiss/DismissRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.AuditLogs.SignIns.Dismiss.Di
         public async Task PostAsync(global::Microsoft.Graph.AuditLogs.SignIns.Dismiss.DismissPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Audit
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.AuditLogs.SignIns.Dismiss.DismissPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Item/SignInItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Item/SignInItemRequestBuilder.cs
index 1ef7a89b9e3..788b8141891 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Item/SignInItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/Item/SignInItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SignIn> PatchAsync(global::Microsoft.Graph.Models.SignIn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SignIn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/SignInsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/SignInsRequestBuilder.cs
index cf813f27f2a..89a59cd54ca 100644
--- a/src/Microsoft.Graph/Generated/AuditLogs/SignIns/SignInsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuditLogs/SignIns/SignInsRequestBuilder.cs
@@ -112,7 +112,7 @@ public SignInsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.SignIn> PostAsync(global::Microsoft.Graph.Models.SignIn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SignIn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
index c524a1b8a64..e351f74caa7 100644
--- a/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AuthenticationMethodConfigurationsRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration> PostAsync(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
index 8f645a9ab78..09bb242a0fd 100644
--- a/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
index dce5209bd9f..46daa48c670 100644
--- a/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AuthenticationMethodConfigurationsRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration> PostAsync(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
index f3497e5fdcf..2039f9ae419 100644
--- a/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs
index c4b4db1ce50..3c7362e837b 100644
--- a/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs
@@ -80,7 +80,7 @@ public AuthenticationMethodsPolicyRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodsPolicy> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethodsPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodsPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs
index 15af0fa907a..2eac633a2f0 100644
--- a/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs
@@ -93,7 +93,7 @@ public CertificateBasedAuthConfigurationRequestBuilder(string rawUrl, IRequestAd
         public async Task<global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration> PostAsync(global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/Item/CertificateBasedAuthConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/Item/CertificateBasedAuthConfigurationItemRequestBuilder.cs
index 03026159d79..516402903eb 100644
--- a/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/Item/CertificateBasedAuthConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/CertificateBasedAuthConfiguration/Item/CertificateBasedAuthConfigurationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration> PatchAsync(global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/ChatsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/ChatsRequestBuilder.cs
index af821bcd0e0..dd49367ee34 100644
--- a/src/Microsoft.Graph/Generated/Chats/ChatsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/ChatsRequestBuilder.cs
@@ -107,7 +107,7 @@ public ChatsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Chat> PostAsync(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
index 1cacf7a2673..55012019757 100644
--- a/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesResponse.cs
index 6ba193e71fa..e6f0c787d64 100644
--- a/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Chats.GetA
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index 6c8409b38a2..c5e7eb12518 100644
--- a/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index cb2dfa6ed0e..238e324ad6c 100644
--- a/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Ch
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/ChatItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/ChatItemRequestBuilder.cs
index 0de0ebcdc8f..3dec5d4143d 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/ChatItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/ChatItemRequestBuilder.cs
@@ -171,7 +171,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Chat> PatchAsync(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -232,7 +232,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
index 9ff85e362b3..f3f6844de49 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public HideForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.HideForUser.HideForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.HideForUser.HideForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
index beae423f327..f19196c7b73 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.HideForUser.HideF
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.HideForUser.HideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.HideForUser.HideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
index b8d8d6e3670..629d9298e71 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -95,7 +95,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
index a4149a3d9c0..849b83a79b3 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
index 124bf47d23f..ef875815296 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
@@ -53,7 +53,7 @@ public UpgradePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
index 83b210c3acd..91104924e3c 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.InstalledApps.Ite
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
index 34fc80ba635..2e742e7beb9 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageInfo> PatchAsync(global::Microsoft.Graph.Models.ChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
index b113896e36e..b005a035b17 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public MarkChatReadForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
index 19087e9a307..44ffc412879 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.MarkChatReadForUs
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
index 9d24ea8a81c..8c5726abebe 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
@@ -59,7 +59,7 @@ public MarkChatUnreadForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastMessageReadDateTime", LastMessageReadDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
index bf673e1b710..4a7d937db89 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.MarkChatUnreadFor
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostRequestBody.cs
index 5b30058799a..1a983aba26e 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostResponse.cs
index 82a81cb00e2..102d906c9a5 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddRequestBuilder.cs
index b28ddc79771..74530277524 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Chats.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Chats.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddResponse.cs
index 4af9b8e7f1a..444166cbd28 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Chats.Item.Members.Ad
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index 4824f280115..e5bcefbcf08 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -58,8 +58,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Retrieve a conversationMember from a chat or channel.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/conversationmember-get?view=graph-rest-1.0" />
+        /// Retrieve a conversationMember from a chat.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/chat-get-members?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ConversationMember"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -126,7 +126,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Retrieve a conversationMember from a chat or channel.
+        /// Retrieve a conversationMember from a chat.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -184,7 +184,7 @@ public partial class ConversationMemberItemRequestBuilderDeleteRequestConfigurat
         {
         }
         /// <summary>
-        /// Retrieve a conversationMember from a chat or channel.
+        /// Retrieve a conversationMember from a chat.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ConversationMemberItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/MembersRequestBuilder.cs
index 703cea8b144..35925f1d439 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/MembersRequestBuilder.cs
@@ -107,7 +107,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostRequestBody.cs
index b3fe8db9b00..bbc9ae21b9e 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostResponse.cs
index 88821af0b6f..6f526f10b45 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
index 0109a6fa037..877a1ec1666 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Chats.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveResponse.cs
index a607a4caa17..fcf2635d317 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Chats.Item.Members
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaGetResponse.cs
index bf41a6b2839..602bcf66223 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaResponse.cs
index 01bfb45e56e..7e128907d1c 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Chats.Item.Messages
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index 7a10ccb648f..ca0760bd2c8 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -133,7 +133,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -194,7 +194,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 24e52d18195..7357e8a30e8 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 9048cb14d31..0bee7bf4357 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index e8a8a117ee9..ab8fbf81d49 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index bc0963926b7..1b3e53102ab 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index e9e963bd130..3199b52bfa3 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Chats.Item.Messages
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index fb19c66985d..5713370335e 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index 0466de33d1d..8101665111f 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index fa7f53dac46..3cbac771fdc 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 6dfd536f9f5..8318c48f1bd 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index f1cd0dcbb2e..e094d5e2b28 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 9221ce138b2..b157db81d2d 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.Rep
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index edd079a02d9..1fcd9054030 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 640a6b94eb7..f5b98fb9fb9 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.Rep
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index 13ff0d21a41..6a1cafa6731 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 0bd8773580c..4a2a7c952bf 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 36469294762..d56314887dd 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.Set
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index f7acad9a636..cb0788ab515 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 2612c303de3..e515d2fa829 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.Uns
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Messages/MessagesRequestBuilder.cs
index c3696c46462..9a025edad01 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Messages/MessagesRequestBuilder.cs
@@ -84,8 +84,8 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ChatMessageCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.ChatMessageCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Send a new chatMessage in the specified chat. This API can&apos;t create a new chat; you must use the list chats method to retrieve the ID of an existing chat before you can create a chat message.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/chat-post-messages?view=graph-rest-1.0" />
+        /// Send a new chatMessage in the specified channel or a chat.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/chatmessage-post?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ChatMessage"/></returns>
         /// <param name="body">The request body</param>
@@ -101,7 +101,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Send a new chatMessage in the specified chat. This API can&apos;t create a new chat; you must use the list chats method to retrieve the ID of an existing chat before you can create a chat message.
+        /// Send a new chatMessage in the specified channel or a chat.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index b68a46d565b..ec271dc3ac6 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index aeec7fd40c5..f2f78ff0358 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
index 02a3dd41631..7597c6b4864 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PinnedChatMessageInfo> PatchAsync(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
index e610f064ee7..5ac146eb1ec 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
@@ -95,7 +95,7 @@ public PinnedMessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.PinnedChatMessageInfo> PostAsync(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index b6a053d60ca..d2c864cbd42 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index 234419df07e..ad639f53a0f 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.SendActivityNotif
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index c4422809984..f3b1fa847be 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/Tabs/TabsRequestBuilder.cs
index 8539197225f..3ad62527ea3 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/Tabs/TabsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
index 508af91e793..cdf6e8e2199 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public UnhideForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
index 43b68b1a0dd..2b98439b039 100644
--- a/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Chats.Item.UnhideForUser.Unh
         public async Task PostAsync(global::Microsoft.Graph.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/CallRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/CallRecordsRequestBuilder.cs
index 70f6e37a151..7796c0c5943 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/CallRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/CallRecordsRequestBuilder.cs
@@ -87,8 +87,8 @@ public CallRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         /// <param name="toDateTime">Usage: toDateTime={toDateTime}</param>
         public global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTimeRequestBuilder MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime(DateTimeOffset? fromDateTime, DateTimeOffset? toDateTime)
         {
-            _ = fromDateTime ?? throw new ArgumentNullException(nameof(fromDateTime));
-            _ = toDateTime ?? throw new ArgumentNullException(nameof(toDateTime));
+            if(ReferenceEquals(fromDateTime, null)) throw new ArgumentNullException(nameof(fromDateTime));
+            if(ReferenceEquals(toDateTime, null)) throw new ArgumentNullException(nameof(toDateTime));
             return new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTimeRequestBuilder(PathParameters, RequestAdapter, fromDateTime, toDateTime);
         }
         /// <summary>
@@ -99,8 +99,8 @@ public CallRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         /// <param name="toDateTime">Usage: toDateTime={toDateTime}</param>
         public global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTimeRequestBuilder MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime(DateTimeOffset? fromDateTime, DateTimeOffset? toDateTime)
         {
-            _ = fromDateTime ?? throw new ArgumentNullException(nameof(fromDateTime));
-            _ = toDateTime ?? throw new ArgumentNullException(nameof(toDateTime));
+            if(ReferenceEquals(fromDateTime, null)) throw new ArgumentNullException(nameof(fromDateTime));
+            if(ReferenceEquals(toDateTime, null)) throw new ArgumentNullException(nameof(toDateTime));
             return new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTimeRequestBuilder(PathParameters, RequestAdapter, fromDateTime, toDateTime);
         }
         /// <summary>
@@ -120,7 +120,7 @@ public CallRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CallRecords.CallRecord> PostAsync(global::Microsoft.Graph.Models.CallRecords.CallRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallRecords.CallRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/CallRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/CallRecordItemRequestBuilder.cs
index aece6e17bdf..f0e55e0bb5e 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/CallRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/CallRecordItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecords.CallRecord> PatchAsync(global::Microsoft.Graph.Models.CallRecords.CallRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecords.CallRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Organizer_v2/Organizer_v2RequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Organizer_v2/Organizer_v2RequestBuilder.cs
index 231db355414..14073ee95fa 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Organizer_v2/Organizer_v2RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Organizer_v2/Organizer_v2RequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecords.Organizer> PatchAsync(global::Microsoft.Graph.Models.CallRecords.Organizer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecords.Organizer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Item/ParticipantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Item/ParticipantItemRequestBuilder.cs
index 904f221e759..0158ff7f1af 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Item/ParticipantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Item/ParticipantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecords.Participant> PatchAsync(global::Microsoft.Graph.Models.CallRecords.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecords.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Participants_v2RequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Participants_v2RequestBuilder.cs
index a31fd2e99a0..28442924a5b 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Participants_v2RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Participants_v2/Participants_v2RequestBuilder.cs
@@ -94,7 +94,7 @@ public Participants_v2RequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.CallRecords.Participant> PostAsync(global::Microsoft.Graph.Models.CallRecords.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallRecords.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/Item/SegmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/Item/SegmentItemRequestBuilder.cs
index 8adb4ac4e72..1f9fd857a89 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/Item/SegmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/Item/SegmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecords.Segment> PatchAsync(global::Microsoft.Graph.Models.CallRecords.Segment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecords.Segment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/SegmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/SegmentsRequestBuilder.cs
index aa65257fb1e..acd669f8cfa 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/SegmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/Segments/SegmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SegmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.CallRecords.Segment> PostAsync(global::Microsoft.Graph.Models.CallRecords.Segment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallRecords.Segment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/SessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/SessionItemRequestBuilder.cs
index 3c454d6e98c..554ec153558 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/SessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/Item/SessionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecords.Session> PatchAsync(global::Microsoft.Graph.Models.CallRecords.Session body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecords.Session body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/SessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/SessionsRequestBuilder.cs
index 4404cbde4b2..8cf1e5a77d2 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/SessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/Item/Sessions/SessionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SessionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.CallRecords.Session> PostAsync(global::Microsoft.Graph.Models.CallRecords.Session body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallRecords.Session body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeGetResponse.cs
index cd62a04ef8f..6626fd9c075 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeGetResponse.cs
@@ -37,7 +37,7 @@ public partial class GetDirectRoutingCallsWithFromDateTimeWithToDateTimeGetRespo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime.GetDirectRoutingCallsWithFromDateTimeWithToDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime.GetDirectRoutingCallsWithFromDateTimeWithToDateTimeGetResponse();
         }
         /// <summary>
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.DirectRoutingLogRow>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeResponse.cs
index 2f4a433e700..1737671456a 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime/GetDirectRoutingCallsWithFromDateTimeWithToDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetDirectRoutingCallsWithFromDateTimeWithToDateTimeResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime.GetDirectRoutingCallsWithFromDateTimeWithToDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetDirectRoutingCallsWithFromDateTimeWithToDateTime.GetDirectRoutingCallsWithFromDateTimeWithToDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeGetResponse.cs
index 91308095ef7..54d64895d18 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeGetResponse.cs
@@ -37,7 +37,7 @@ public partial class GetPstnCallsWithFromDateTimeWithToDateTimeGetResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime.GetPstnCallsWithFromDateTimeWithToDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime.GetPstnCallsWithFromDateTimeWithToDateTimeGetResponse();
         }
         /// <summary>
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.PstnCallLogRow>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeResponse.cs
index c08c4263d03..36f71163de4 100644
--- a/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CallRecords/MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime/GetPstnCallsWithFromDateTimeWithToDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetPstnCallsWithFromDateTimeWithToDateTimeResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime.GetPstnCallsWithFromDateTimeWithToDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.CallRecords.MicrosoftGraphCallRecordsGetPstnCallsWithFromDateTimeWithToDateTime.GetPstnCallsWithFromDateTimeWithToDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/CallsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/CallsRequestBuilder.cs
index 5d77cc45419..b6a11f74f57 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/CallsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/CallsRequestBuilder.cs
@@ -100,7 +100,7 @@ public CallsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Call> PostAsync(global::Microsoft.Graph.Models.Call body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Call body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewPostRequestBody.cs
index 0bfceba73ee..8537551f101 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddLargeGalleryViewPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.AddLargeGalleryView.AddLargeGalleryViewPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.AddLargeGalleryView.AddLargeGalleryViewPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewRequestBuilder.cs
index 52dff63030e..f8829559d9c 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AddLargeGalleryView/AddLargeGalleryViewRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddLargeGalleryViewRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.AddLargeGalleryViewOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.AddLargeGalleryView.AddLargeGalleryViewPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.AddLargeGalleryView.AddLargeGalleryViewPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerPostRequestBody.cs
index 324318b88ec..bf6f6bc7108 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerPostRequestBody.cs
@@ -107,7 +107,7 @@ public AnswerPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Answer.AnswerPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Answer.AnswerPostRequestBody();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.Modality>("acceptedModalities", AcceptedModalities);
             writer.WriteStringValue("callbackUri", CallbackUri);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IncomingCallOptions>("callOptions", CallOptions);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerRequestBuilder.cs
index 27566bcf5c4..511a6f27e64 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Answer/AnswerRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.An
         public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Answer.AnswerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Answer.AnswerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/AudioRoutingGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/AudioRoutingGroupsRequestBuilder.cs
index fe22833d8e2..168216a805e 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/AudioRoutingGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/AudioRoutingGroupsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AudioRoutingGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AudioRoutingGroup> PostAsync(global::Microsoft.Graph.Models.AudioRoutingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AudioRoutingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/Item/AudioRoutingGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/Item/AudioRoutingGroupItemRequestBuilder.cs
index 1fdc9e32e6d..526ffdb860a 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/Item/AudioRoutingGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/AudioRoutingGroups/Item/AudioRoutingGroupItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AudioRoutingGroup> PatchAsync(global::Microsoft.Graph.Models.AudioRoutingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AudioRoutingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/CallItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/CallItemRequestBuilder.cs
index d90fad86e8c..54561a8e9b8 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/CallItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/CallItemRequestBuilder.cs
@@ -212,7 +212,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Call> PatchAsync(global::Microsoft.Graph.Models.Call body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -273,7 +273,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Call body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingPostRequestBody.cs
index 64390af71f3..091a42486ac 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelMediaProcessingPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.CancelMediaProcessing.CancelMediaProcessingPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.CancelMediaProcessing.CancelMediaProcessingPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingRequestBuilder.cs
index 70590a5cf08..81e47f83459 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/CancelMediaProcessing/CancelMediaProcessingRequestBuilder.cs
@@ -52,7 +52,7 @@ public CancelMediaProcessingRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.CancelMediaProcessingOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.CancelMediaProcessing.CancelMediaProcessingPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.CancelMediaProcessing.CancelMediaProcessingPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRolePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRolePostRequestBody.cs
index a160bf15c46..0004bef5fc9 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRolePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRolePostRequestBody.cs
@@ -43,7 +43,7 @@ public ChangeScreenSharingRolePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.ChangeScreenSharingRole.ChangeScreenSharingRolePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.ChangeScreenSharingRole.ChangeScreenSharingRolePostRequestBody();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ScreenSharingRole>("role", Role);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRoleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRoleRequestBuilder.cs
index 1c9d205a75a..6e2e1a4fc57 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRoleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ChangeScreenSharingRole/ChangeScreenSharingRoleRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Ch
         public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.ChangeScreenSharingRole.ChangeScreenSharingRolePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.ChangeScreenSharingRole.ChangeScreenSharingRolePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/ContentSharingSessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/ContentSharingSessionsRequestBuilder.cs
index 4d1f173c10f..e0278e68698 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/ContentSharingSessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/ContentSharingSessionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ContentSharingSessionsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.ContentSharingSession> PostAsync(global::Microsoft.Graph.Models.ContentSharingSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentSharingSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/Item/ContentSharingSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/Item/ContentSharingSessionItemRequestBuilder.cs
index efab2baa455..27a3a1d3512 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/Item/ContentSharingSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/ContentSharingSessions/Item/ContentSharingSessionItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentSharingSession> PatchAsync(global::Microsoft.Graph.Models.ContentSharingSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentSharingSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MutePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MutePostRequestBody.cs
index ef45679ac07..ae612026f44 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MutePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MutePostRequestBody.cs
@@ -52,7 +52,7 @@ public MutePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Mute.MutePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Mute.MutePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MuteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MuteRequestBuilder.cs
index 486471a298b..cc18594fbc1 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MuteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Mute/MuteRequestBuilder.cs
@@ -52,7 +52,7 @@ public MuteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MuteParticipantOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Mute.MutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Mute.MutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/Item/CommsOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/Item/CommsOperationItemRequestBuilder.cs
index af78a90088a..f062a43f426 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/Item/CommsOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/Item/CommsOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CommsOperation> PatchAsync(global::Microsoft.Graph.Models.CommsOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CommsOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/OperationsRequestBuilder.cs
index 4dcd6de1f4f..91d88d15b16 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.CommsOperation> PostAsync(global::Microsoft.Graph.Models.CommsOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CommsOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InvitePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InvitePostRequestBody.cs
index a67dcd2c111..7a3230f445e 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InvitePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InvitePostRequestBody.cs
@@ -69,7 +69,7 @@ public InvitePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Participants.Invite.InvitePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Participants.Invite.InvitePostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.InvitationParticipantInfo>("participants", Participants);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InviteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InviteRequestBuilder.cs
index f097afb10cf..c6c1ceaa7ed 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InviteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Invite/InviteRequestBuilder.cs
@@ -52,7 +52,7 @@ public InviteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.InviteParticipantsOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Participants.Invite.InvitePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Participants.Invite.InvitePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MutePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MutePostRequestBody.cs
index 9589eb7fb73..eaca68a71c4 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MutePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MutePostRequestBody.cs
@@ -52,7 +52,7 @@ public MutePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.Mute.MutePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.Mute.MutePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MuteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MuteRequestBuilder.cs
index 6da8f427e9c..e10fa3f5662 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MuteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/Mute/MuteRequestBuilder.cs
@@ -52,7 +52,7 @@ public MuteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MuteParticipantOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.Mute.MutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.Mute.MutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/ParticipantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/ParticipantItemRequestBuilder.cs
index ce4b2669a4c..c807de45bf2 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/ParticipantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/ParticipantItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Participant> PatchAsync(global::Microsoft.Graph.Models.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicPostRequestBody.cs
index bfeaf798dab..696461d7f6f 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicPostRequestBody.cs
@@ -69,7 +69,7 @@ public StartHoldMusicPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StartHoldMusic.StartHoldMusicPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StartHoldMusic.StartHoldMusicPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Prompt>("customPrompt", CustomPrompt);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicRequestBuilder.cs
index d1539af1477..212ab28b908 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StartHoldMusic/StartHoldMusicRequestBuilder.cs
@@ -52,7 +52,7 @@ public StartHoldMusicRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.StartHoldMusicOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StartHoldMusic.StartHoldMusicPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StartHoldMusic.StartHoldMusicPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicPostRequestBody.cs
index 92f83a74e23..ef9e59f8cc4 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicPostRequestBody.cs
@@ -52,7 +52,7 @@ public StopHoldMusicPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StopHoldMusic.StopHoldMusicPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StopHoldMusic.StopHoldMusicPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicRequestBuilder.cs
index 18a97d1baf4..d0ad2f103bf 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/Item/StopHoldMusic/StopHoldMusicRequestBuilder.cs
@@ -52,7 +52,7 @@ public StopHoldMusicRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.StopHoldMusicOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StopHoldMusic.StopHoldMusicPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Participants.Item.StopHoldMusic.StopHoldMusicPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/ParticipantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/ParticipantsRequestBuilder.cs
index ae3a414023d..93403082696 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/ParticipantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Participants/ParticipantsRequestBuilder.cs
@@ -100,7 +100,7 @@ public ParticipantsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Participant> PostAsync(global::Microsoft.Graph.Models.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Participant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptPostRequestBody.cs
index f3d616785ea..b896f0abca5 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptPostRequestBody.cs
@@ -69,7 +69,7 @@ public PlayPromptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.PlayPrompt.PlayPromptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.PlayPrompt.PlayPromptPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Prompt>("prompts", Prompts);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptRequestBuilder.cs
index ad1ed02d5bb..f27157c5079 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/PlayPrompt/PlayPromptRequestBuilder.cs
@@ -52,7 +52,7 @@ public PlayPromptRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.PlayPromptOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.PlayPrompt.PlayPromptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.PlayPrompt.PlayPromptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponsePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponsePostRequestBody.cs
index fea81ca537f..cf7c7080f8f 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponsePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponsePostRequestBody.cs
@@ -115,7 +115,7 @@ public RecordResponsePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.RecordResponse.RecordResponsePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.RecordResponse.RecordResponsePostRequestBody();
         }
         /// <summary>
@@ -142,7 +142,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("bargeInAllowed", BargeInAllowed);
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteIntValue("initialSilenceTimeoutInSeconds", InitialSilenceTimeoutInSeconds);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponseRequestBuilder.cs
index 64f9e10ed59..7e15ebb1aa3 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/RecordResponse/RecordResponseRequestBuilder.cs
@@ -52,7 +52,7 @@ public RecordResponseRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.RecordOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.RecordResponse.RecordResponsePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.RecordResponse.RecordResponsePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectPostRequestBody.cs
index 8c431ee1a14..df17f120653 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectPostRequestBody.cs
@@ -75,7 +75,7 @@ public RedirectPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Redirect.RedirectPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Redirect.RedirectPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("callbackUri", CallbackUri);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.InvitationParticipantInfo>("targets", Targets);
             writer.WriteIntValue("timeout", Timeout);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectRequestBuilder.cs
index 58a90307456..0035243b200 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Redirect/RedirectRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Re
         public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Redirect.RedirectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Redirect.RedirectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectPostRequestBody.cs
index 03c7440c1eb..794e46f0dd7 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectPostRequestBody.cs
@@ -59,7 +59,7 @@ public RejectPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Reject.RejectPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Reject.RejectPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("callbackUri", CallbackUri);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RejectReason>("reason", Reason);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectRequestBuilder.cs
index 1c76f25b9cd..c8d96f194ba 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Reject/RejectRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Re
         public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Reject.RejectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Reject.RejectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesPostRequestBody.cs
index 877c84a9c21..a4d001fc062 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesPostRequestBody.cs
@@ -75,7 +75,7 @@ public SendDtmfTonesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.SendDtmfTones.SendDtmfTonesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.SendDtmfTones.SendDtmfTonesPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteIntValue("delayBetweenTonesMs", DelayBetweenTonesMs);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.Tone>("tones", Tones);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesRequestBuilder.cs
index 586948e978c..471ef8f77bc 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SendDtmfTones/SendDtmfTonesRequestBuilder.cs
@@ -51,7 +51,7 @@ public SendDtmfTonesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SendDtmfTonesOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.SendDtmfTones.SendDtmfTonesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.SendDtmfTones.SendDtmfTonesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToTonePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToTonePostRequestBody.cs
index 89ca6a2dfcf..6c81cb087d9 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToTonePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToTonePostRequestBody.cs
@@ -52,7 +52,7 @@ public SubscribeToTonePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.SubscribeToTone.SubscribeToTonePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.SubscribeToTone.SubscribeToTonePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToToneRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToToneRequestBuilder.cs
index 8b0aa6be442..fcabc88ede3 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToToneRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/SubscribeToTone/SubscribeToToneRequestBuilder.cs
@@ -52,7 +52,7 @@ public SubscribeToToneRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SubscribeToToneOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.SubscribeToTone.SubscribeToTonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.SubscribeToTone.SubscribeToTonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferPostRequestBody.cs
index eb674ccee5e..e536ab3cdfa 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferPostRequestBody.cs
@@ -69,7 +69,7 @@ public TransferPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Transfer.TransferPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Transfer.TransferPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ParticipantInfo>("transferee", Transferee);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.InvitationParticipantInfo>("transferTarget", TransferTarget);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferRequestBuilder.cs
index c691c7a094a..dba530e3e50 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Transfer/TransferRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Tr
         public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Transfer.TransferPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Transfer.TransferPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmutePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmutePostRequestBody.cs
index 9a07c3d0a6e..1e74f8dafc8 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmutePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmutePostRequestBody.cs
@@ -52,7 +52,7 @@ public UnmutePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.Unmute.UnmutePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.Unmute.UnmutePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmuteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmuteRequestBuilder.cs
index 522192b0de8..edd1bdda968 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmuteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/Unmute/UnmuteRequestBuilder.cs
@@ -52,7 +52,7 @@ public UnmuteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.UnmuteParticipantOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.Unmute.UnmutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.Unmute.UnmutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusPostRequestBody.cs
index cb090a176f5..c04b73959ff 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusPostRequestBody.cs
@@ -59,7 +59,7 @@ public UpdateRecordingStatusPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.Item.UpdateRecordingStatus.UpdateRecordingStatusPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.Item.UpdateRecordingStatus.UpdateRecordingStatusPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RecordingStatus>("status", Status);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusRequestBuilder.cs
index 0ed7da5ad28..575eab852c7 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/Item/UpdateRecordingStatus/UpdateRecordingStatusRequestBuilder.cs
@@ -52,7 +52,7 @@ public UpdateRecordingStatusRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.UpdateRecordingStatusOperation> PostAsync(global::Microsoft.Graph.Communications.Calls.Item.UpdateRecordingStatus.UpdateRecordingStatusPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.Item.UpdateRecordingStatus.UpdateRecordingStatusPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityPostRequestBody.cs
index 9dc3484e925..033918ec459 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityPostRequestBody.cs
@@ -53,7 +53,7 @@ public LogTeleconferenceDeviceQualityPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Calls.LogTeleconferenceDeviceQuality.LogTeleconferenceDeviceQualityPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Calls.LogTeleconferenceDeviceQuality.LogTeleconferenceDeviceQualityPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeleconferenceDeviceQuality>("quality", Quality);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityRequestBuilder.cs
index 0fd879a2a0a..cd5f9c01869 100644
--- a/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Calls/LogTeleconferenceDeviceQuality/LogTeleconferenceDeviceQualityRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.LogTele
         public async Task PostAsync(global::Microsoft.Graph.Communications.Calls.LogTeleconferenceDeviceQuality.LogTeleconferenceDeviceQualityPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Calls.LogTeleconferenceDeviceQuality.LogTeleconferenceDeviceQualityPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/CommunicationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/CommunicationsRequestBuilder.cs
index dbf439dd072..002da730c87 100644
--- a/src/Microsoft.Graph/Generated/Communications/CommunicationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/CommunicationsRequestBuilder.cs
@@ -104,7 +104,7 @@ public CommunicationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.CloudCommunications> PatchAsync(global::Microsoft.Graph.Models.CloudCommunications body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudCommunications body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostRequestBody.cs
index b8e139b8eff..fd818951212 100644
--- a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostRequestBody.cs
@@ -52,7 +52,7 @@ public GetPresencesByUserIdPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostResponse.cs b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostResponse.cs
index 59cd768dc80..1ee8591e4c5 100644
--- a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetPresencesByUserIdPostResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Presence>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdRequestBuilder.cs
index 57a7f5ddf57..aeaa375f1e2 100644
--- a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetPresencesByUserIdRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostResponse> PostAsGetPresencesByUserIdPostResponseAsync(global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetPresencesByUserIdRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdResponse> PostAsync(global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdResponse.cs b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdResponse.cs
index 40b73f711ee..908f92b10e1 100644
--- a/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/GetPresencesByUserId/GetPresencesByUserIdResponse.cs
@@ -20,7 +20,7 @@ public partial class GetPresencesByUserIdResponse : global::Microsoft.Graph.Comm
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.GetPresencesByUserId.GetPresencesByUserIdResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
index a2a57316258..b5fc30c8e79 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
@@ -113,7 +113,7 @@ public CreateOrGetPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ChatInfo>("chatInfo", ChatInfo);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("externalId", ExternalId);
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
index 4b3622e94f8..1d6f0a07b2e 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateOrGetRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PostAsync(global::Microsoft.Graph.Communications.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index f5147a2fd41..b64a6539751 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserI
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecording>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
index 15d2991f82b..55bbfaead25 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserI
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index ea28c511a4f..9c5185976f2 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUser
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallTranscript>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
index 9fb91eb0238..2b750d85be0 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUser
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
index ae6328b5dbd..6ca79641c58 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AttendanceReportsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PostAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
index af3ec108f78..c16420cd0dd 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AttendanceRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PostAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
index b00b9bdac47..817ce3f4c21 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PatchAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
index 3902d9f668e..540927a81b7 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PatchAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
index d71eebec0ce..34eb2410151 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
index 37e00342671..2a8e915289d 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
@@ -52,7 +52,7 @@ public GetVirtualAppointmentJoinWebUrlGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
index 4ec604790ff..c13cbbc3263 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
@@ -20,7 +20,7 @@ public partial class GetVirtualAppointmentJoinWebUrlResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
index 01c9f4833c3..349a7f34359 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PatchAsync(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
index c71b37c62ad..f3c9f917890 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Recordings.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Recordings.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecording>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
index 6efc0fe43df..415be05efd1 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Communications.Onli
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Recordings.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Recordings.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
index 1385097b74d..0ee1980e98e 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecording> PatchAsync(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
index 7648533780e..1d4ae17d49c 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.CallRecording> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
index 68829a73a7d..291697a42b4 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
@@ -99,7 +99,7 @@ public RecordingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.CallRecording> PostAsync(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
index 60e6ec12eb1..57734b6765d 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendVirtualAppointmentReminderSmsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeNotificationInfo>("attendees", Attendees);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RemindBeforeTimeInMinutesType>("remindBeforeTimeInMinutesType", RemindBeforeTimeInMinutesType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
index 9a3cd224b85..3c97d1fb568 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.OnlineMeeting
         public async Task PostAsync(global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
index 71e3febfb7d..5ec6719af5d 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendVirtualAppointmentSmsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeNotificationInfo>("attendees", Attendees);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.VirtualAppointmentMessageType>("messageType", MessageType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
index ac254b0828b..cbc0b229f8d 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.OnlineMeeting
         public async Task PostAsync(global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
index d7d52352d14..8fc50a3eb54 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Transcripts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Transcripts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallTranscript>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
index 9497db7f6a6..5baf12ebecf 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Communications.Onli
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Transcripts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.OnlineMeetings.Item.Transcripts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
index d422ff58b30..818813ec1de 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PatchAsync(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
index c8234aed64d..9eed5f92d6d 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
index b50191a44ec..9cb4b020b26 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
index 51ee62c4088..65fb261efce 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
@@ -99,7 +99,7 @@ public TranscriptsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PostAsync(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/OnlineMeetingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
index 3d5892ddfcd..72e3f1a5529 100644
--- a/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
@@ -112,7 +112,7 @@ public OnlineMeetingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PostAsync(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresencePostRequestBody.cs
index 6f661b47f28..cd81ebd3a5b 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresencePostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Presences.Item.ClearPresence.ClearPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Presences.Item.ClearPresence.ClearPresencePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("sessionId", SessionId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresenceRequestBuilder.cs
index 10419cd18bd..95ea913ea92 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/ClearPresence/ClearPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Ite
         public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Item.ClearPresence.ClearPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Presences.Item.ClearPresence.ClearPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/PresenceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/PresenceItemRequestBuilder.cs
index e47e384827e..669859e4179 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/PresenceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/PresenceItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Presence> PatchAsync(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresencePostRequestBody.cs
index fe57ccb47b6..5b37e7c3570 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresencePostRequestBody.cs
@@ -90,7 +90,7 @@ public SetPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Presences.Item.SetPresence.SetPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Presences.Item.SetPresence.SetPresencePostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activity", Activity);
             writer.WriteStringValue("availability", Availability);
             writer.WriteTimeSpanValue("expirationDuration", ExpirationDuration);
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresenceRequestBuilder.cs
index 3293f2d5199..475303b10df 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetPresence/SetPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Ite
         public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Item.SetPresence.SetPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Presences.Item.SetPresence.SetPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessagePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessagePostRequestBody.cs
index 324b13a8f57..948e866bb0b 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessagePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessagePostRequestBody.cs
@@ -53,7 +53,7 @@ public SetStatusMessagePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Presences.Item.SetStatusMessage.SetStatusMessagePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Presences.Item.SetStatusMessage.SetStatusMessagePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PresenceStatusMessage>("statusMessage", StatusMessage);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessageRequestBuilder.cs
index 8d9c33500f1..72847e26654 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetStatusMessage/SetStatusMessageRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Ite
         public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Item.SetStatusMessage.SetStatusMessagePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Presences.Item.SetStatusMessage.SetStatusMessagePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
index 4befafb313b..de751f877b8 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
@@ -74,7 +74,7 @@ public SetUserPreferredPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Communications.Presences.Item.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Communications.Presences.Item.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activity", Activity);
             writer.WriteStringValue("availability", Availability);
             writer.WriteTimeSpanValue("expirationDuration", ExpirationDuration);
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
index 193e881740e..0ff862fa3f2 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/Item/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Ite
         public async Task PostAsync(global::Microsoft.Graph.Communications.Presences.Item.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Commu
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Communications.Presences.Item.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Communications/Presences/PresencesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Communications/Presences/PresencesRequestBuilder.cs
index 11201486592..699f227152e 100644
--- a/src/Microsoft.Graph/Generated/Communications/Presences/PresencesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Communications/Presences/PresencesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PresencesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Presence> PostAsync(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Compliance/ComplianceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Compliance/ComplianceRequestBuilder.cs
index 98e12c219e2..57851004e30 100644
--- a/src/Microsoft.Graph/Generated/Compliance/ComplianceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Compliance/ComplianceRequestBuilder.cs
@@ -74,7 +74,7 @@ public ComplianceRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Compliance> PatchAsync(global::Microsoft.Graph.Models.Compliance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Compliance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/ConnectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/ConnectionsRequestBuilder.cs
index f254d9f9e28..d5c677dd0d8 100644
--- a/src/Microsoft.Graph/Generated/Connections/ConnectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/ConnectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ConnectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/ExternalConnectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/ExternalConnectionItemRequestBuilder.cs
index 1fb7d69fb09..0b7d4811ce2 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/ExternalConnectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/ExternalConnectionItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Groups/GroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Groups/GroupsRequestBuilder.cs
index acef17d57da..6eca1efa493 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Groups/GroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Groups/GroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs
index 43c6e308aa8..72698425383 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs
index 0852ef934e0..31b9b79d24d 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.Identity> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs
index fd5cdb53ccf..905b3c29adc 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs
@@ -93,7 +93,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.Identity> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs
index 9c97dccf55b..d31e07881d9 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs
index 0f66bad9da5..a040d6a64e0 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs
index d4df98fa667..0223522168d 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem> PutAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs
index 32018241018..ec8733b0585 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddActivitiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity>("activities", Activities);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs
index bb185a15bbf..cb152c15b6d 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs
@@ -37,7 +37,7 @@ public partial class AddActivitiesPostResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostResponse();
         }
         /// <summary>
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivityResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs
index 109403862f6..98e2fae1012 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs
@@ -20,7 +20,7 @@ public partial class AddActivitiesResponse : global::Microsoft.Graph.Connections
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs
index cc5434174cb..83dfaef5a33 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder(string rawUrl
         public async Task<global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostResponse> PostAsAddActivitiesPostResponseAsync(global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder(string rawUrl
         public async Task<global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesResponse> PostAsync(global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conne
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Items/ItemsRequestBuilder.cs
index b1516f59b7d..fd9cd3167d3 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Items/ItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs
index 86fc1130e11..363b4afe85c 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Operations/OperationsRequestBuilder.cs
index 7152164db74..8bdf944ca98 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Connections/Item/Schema/SchemaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Connections/Item/Schema/SchemaRequestBuilder.cs
index d5a198a7b37..91b40e68744 100644
--- a/src/Microsoft.Graph/Generated/Connections/Item/Schema/SchemaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Connections/Item/Schema/SchemaRequestBuilder.cs
@@ -74,7 +74,7 @@ public SchemaRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.Schema> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.Schema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.Schema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaGetResponse.cs
index f0f6cedce5e..8f626261b8a 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OrgContact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaResponse.cs
index aa34db73635..29bc11d68f7 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Contacts.Delta.Delt
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 112979d50d8..06ef4ea68e7 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 74f942d02aa..042e8fed10d 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 244f48d5761..0b92e8f0736 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conta
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 742149f7541..bc3d6043bed 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostRequestBody.cs
index f92efcb077f..85ce25fae94 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostResponse.cs
index 9002ddaab87..f517e81b0dc 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsRequestBuilder.cs
index 61858c6b7ef..2ea14e927d7 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Contacts.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conta
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contacts.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsResponse.cs
index 8f65170b34b..d8391dc2012 100644
--- a/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.Contacts.GetById
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index e1e94e321b0..e2f203637b7 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index d5b0ad5e20b..d72ad2a7f15 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 925244d8143..3faa463b82d 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conta
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index b70510fa849..4ecb0c2e3d8 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Contact
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index 44bea36e0c3..c1c5a37c3fc 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 26041b41642..644f1f15d8a 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 551a21006a3..3d7204cc290 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conta
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index d2ff90208a6..e8abb110081 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Contac
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index 686d10a60a2..b0cfce81265 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 1d0754ab249..0d454107590 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index f3098578f44..7c357134e90 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conta
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 6e0111e022c..71b2872e9e1 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Contacts.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 2b3659125ee..ffc88d4dfe6 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 98ea6460d6a..d21ae7debfa 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 80748f6a0b3..a7d336c8221 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conta
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index 0ff9194c5b7..6a2c2de12a4 100644
--- a/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Contacts
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 728610d48e4..9f64e0bcad4 100644
--- a/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contacts.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contacts.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index d342bdf7502..06304c78a8f 100644
--- a/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contacts/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Contacts.ValidateProperties.
         public async Task PostAsync(global::Microsoft.Graph.Contacts.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Conta
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contacts.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/ContractsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/ContractsRequestBuilder.cs
index d5b70b39b35..ec08f08eea5 100644
--- a/src/Microsoft.Graph/Generated/Contracts/ContractsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/ContractsRequestBuilder.cs
@@ -118,7 +118,7 @@ public ContractsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Contract> PostAsync(global::Microsoft.Graph.Models.Contract body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Contract body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaGetResponse.cs
index ee63591743b..04cef128e4e 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaResponse.cs
index 3d8a0e9234b..4eb4ba6b9e7 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Contracts.Delta.Del
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index a23f25175dd..4c3648c1ef4 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 4ad09cfde28..ec7bcd452be 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index d15899b5204..a1f790dbcae 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 291401ff5de..b569d0095fc 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostRequestBody.cs
index 3604717b724..092499a0b90 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostResponse.cs
index 439bc851b9a..42e0b763fa4 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsRequestBuilder.cs
index 21f1f7605e3..dcce59132d5 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Contracts.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contracts.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsResponse.cs
index 0f905312ec2..c1c40291ce2 100644
--- a/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.Contracts.GetByI
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index e754dedfbbb..f77aa3572b4 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 2d9287e3f4b..86963056917 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 7bddaa58a12..8b90abf923a 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index a86ee5e2a8b..a309dbf44a6 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Contrac
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index c9c1c1466e8..26388c5cc3d 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 4ac33f4b9e0..8f1d7ea23dd 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 62170c6cbdb..a11aabc93d0 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 761b8838fbb..a3bbafb41e2 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Contra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/ContractItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/Item/ContractItemRequestBuilder.cs
index a3f65961741..5ae451cec57 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/ContractItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/ContractItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Contract> PatchAsync(global::Microsoft.Graph.Models.Contract body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Contract body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index bde4dc5e7cc..c0ed5be9a22 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index aec728966a4..859024bd7a7 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 8f69cf7bdee..0bd681a1c21 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index dfc2dbd6b3a..40046fbc069 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Contracts
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 7c2a537f686..d4eee813a2e 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 0dbe15d5f5c..d72b16efb9b 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 27c34e3c82a..cf2afff803a 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index fc4646c6c91..38f0c53c86b 100644
--- a/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Contract
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 53c07dde856..c3db18b9f19 100644
--- a/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Contracts.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Contracts.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index 67606e085d6..c557f544784 100644
--- a/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Contracts/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Contracts.ValidateProperties
         public async Task PostAsync(global::Microsoft.Graph.Contracts.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Contracts.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DataPolicyOperations/DataPolicyOperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DataPolicyOperations/DataPolicyOperationsRequestBuilder.cs
index 4ad3fad3d06..2b08774ad54 100644
--- a/src/Microsoft.Graph/Generated/DataPolicyOperations/DataPolicyOperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DataPolicyOperations/DataPolicyOperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DataPolicyOperationsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.DataPolicyOperation> PostAsync(global::Microsoft.Graph.Models.DataPolicyOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DataPolicyOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DataPolicyOperations/Item/DataPolicyOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DataPolicyOperations/Item/DataPolicyOperationItemRequestBuilder.cs
index fab95bbd85b..9a8fb6c03fc 100644
--- a/src/Microsoft.Graph/Generated/DataPolicyOperations/Item/DataPolicyOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DataPolicyOperations/Item/DataPolicyOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DataPolicyOperation> PatchAsync(global::Microsoft.Graph.Models.DataPolicyOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DataPolicyOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/AndroidManagedAppProtectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/AndroidManagedAppProtectionsRequestBuilder.cs
index 9274ffc04a3..2b37b965d5c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/AndroidManagedAppProtectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/AndroidManagedAppProtectionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AndroidManagedAppProtectionsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.AndroidManagedAppProtection> PostAsync(global::Microsoft.Graph.Models.AndroidManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AndroidManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/AndroidManagedAppProtectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/AndroidManagedAppProtectionItemRequestBuilder.cs
index 717c0d19448..111c10159aa 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/AndroidManagedAppProtectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/AndroidManagedAppProtectionItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AndroidManagedAppProtection> PatchAsync(global::Microsoft.Graph.Models.AndroidManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AndroidManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/AppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
index 0ad7c61a84f..fa8f6336790 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PostAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
index 46069573ae7..cc06b9a6108 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PatchAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs
index d4c37fe6379..2551cc6fa83 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PostAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
index 9d59fa9e434..cb37da292d8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
index d3fd0678394..6474f9efebc 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/AndroidManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary> PatchAsync(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/DefaultManagedAppProtectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/DefaultManagedAppProtectionsRequestBuilder.cs
index e5db7e20d70..98e03d0903d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/DefaultManagedAppProtectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/DefaultManagedAppProtectionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DefaultManagedAppProtectionsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.DefaultManagedAppProtection> PostAsync(global::Microsoft.Graph.Models.DefaultManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DefaultManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/AppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
index f2d5fdea941..5587c6d9601 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PostAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
index b8806d158c3..89bf0ca38ec 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PatchAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DefaultManagedAppProtectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DefaultManagedAppProtectionItemRequestBuilder.cs
index 12163191a5b..394eb87f3aa 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DefaultManagedAppProtectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DefaultManagedAppProtectionItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DefaultManagedAppProtection> PatchAsync(global::Microsoft.Graph.Models.DefaultManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DefaultManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
index 8bd4a15123b..5647121c417 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/DefaultManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary> PatchAsync(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/DeviceAppManagementRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/DeviceAppManagementRequestBuilder.cs
index 4e226cb4e94..14f63f601d8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/DeviceAppManagementRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/DeviceAppManagementRequestBuilder.cs
@@ -132,7 +132,7 @@ public DeviceAppManagementRequestBuilder(string rawUrl, IRequestAdapter requestA
         }
         /// <summary>
         /// Read properties and relationships of the deviceAppManagement object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-deviceappmanagement-get?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-deviceappmanagement-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceAppManagement"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -156,7 +156,7 @@ public DeviceAppManagementRequestBuilder(string rawUrl, IRequestAdapter requestA
         }
         /// <summary>
         /// Update the properties of a deviceAppManagement object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-partnerintegration-deviceappmanagement-update?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-deviceappmanagement-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceAppManagement"/></returns>
         /// <param name="body">The request body</param>
@@ -172,7 +172,7 @@ public DeviceAppManagementRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.DeviceAppManagement> PatchAsync(global::Microsoft.Graph.Models.DeviceAppManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -214,7 +214,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceAppManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/IosManagedAppProtectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/IosManagedAppProtectionsRequestBuilder.cs
index 8f394ca2d40..058882b3b2a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/IosManagedAppProtectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/IosManagedAppProtectionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public IosManagedAppProtectionsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.IosManagedAppProtection> PostAsync(global::Microsoft.Graph.Models.IosManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IosManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/AppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
index 58ae13ac33c..71e3200c763 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/AppsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PostAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
index 0f3fbe24aad..caca55198f9 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PatchAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs
index 9f29c8ab10c..3a5c5696051 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PostAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
index 5ea4dc75160..0a5d159a83e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
index 920b9b0e0f0..92bb5f1ed5c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary> PatchAsync(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/IosManagedAppProtectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/IosManagedAppProtectionItemRequestBuilder.cs
index 0e2e7d216b7..96003c45ba4 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/IosManagedAppProtectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/IosManagedAppProtections/Item/IosManagedAppProtectionItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IosManagedAppProtection> PatchAsync(global::Microsoft.Graph.Models.IosManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IosManagedAppProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
index a1928e3edba..cdd161497b8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
@@ -63,8 +63,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the managedAppPolicy object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedapppolicy-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the targetedManagedAppProtection object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-targetedmanagedappprotection-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedAppPolicy"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicy> PatchAsync(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -131,7 +131,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the managedAppPolicy object.
+        /// Read properties and relationships of the targetedManagedAppProtection object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -189,7 +189,7 @@ public partial class ManagedAppPolicyItemRequestBuilderDeleteRequestConfiguratio
         {
         }
         /// <summary>
-        /// Read properties and relationships of the managedAppPolicy object.
+        /// Read properties and relationships of the targetedManagedAppProtection object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedAppPolicyItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
index 7d7b49398e6..49a4ee958b6 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
@@ -53,7 +53,7 @@ public TargetAppsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.ManagedAppPolicies.Item.TargetApps.TargetAppsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppPolicies.Item.TargetApps.TargetAppsPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
index 5c5d3b67748..7d3abb4f1aa 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
@@ -35,7 +35,7 @@ public TargetAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         }
         /// <summary>
         /// Not yet documented
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-targetedmanagedappprotection-targetapps?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedapppolicy-targetapps?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="body">The request body</param>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedA
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedAppPolicies.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.ManagedAppPolicies.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/ManagedAppPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/ManagedAppPoliciesRequestBuilder.cs
index 6e7d0ae8cd1..90a519b6493 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/ManagedAppPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppPolicies/ManagedAppPoliciesRequestBuilder.cs
@@ -54,8 +54,8 @@ public ManagedAppPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         {
         }
         /// <summary>
-        /// List properties and relationships of the managedAppPolicy objects.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedapppolicy-list?view=graph-rest-1.0" />
+        /// List properties and relationships of the managedAppProtection objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedappprotection-list?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedAppPolicyCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -94,7 +94,7 @@ public ManagedAppPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicy> PostAsync(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -103,7 +103,7 @@ public ManagedAppPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAd
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ManagedAppPolicy>(requestInfo, global::Microsoft.Graph.Models.ManagedAppPolicy.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List properties and relationships of the managedAppPolicy objects.
+        /// List properties and relationships of the managedAppProtection objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppPolicies.ManagedAppPoliciesRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List properties and relationships of the managedAppPolicy objects.
+        /// List properties and relationships of the managedAppProtection objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedAppPoliciesRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationGetResponse.cs
index 28e14e4a362..ba383167b63 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.GetUserIdsWithFlaggedAppRegistration.GetUserIdsWithFlaggedAppRegistrationGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.GetUserIdsWithFlaggedAppRegistration.GetUserIdsWithFlaggedAppRegistrationGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationResponse.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationResponse.cs
index f8684699feb..54ffd332414 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/GetUserIdsWithFlaggedAppRegistration/GetUserIdsWithFlaggedAppRegistrationResponse.cs
@@ -20,7 +20,7 @@ public partial class GetUserIdsWithFlaggedAppRegistrationResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.GetUserIdsWithFlaggedAppRegistration.GetUserIdsWithFlaggedAppRegistrationResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.GetUserIdsWithFlaggedAppRegistration.GetUserIdsWithFlaggedAppRegistrationResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/AppliedPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/AppliedPoliciesRequestBuilder.cs
index b4171b24836..e4e1ddfab14 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/AppliedPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/AppliedPoliciesRequestBuilder.cs
@@ -93,7 +93,7 @@ public AppliedPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicy> PostAsync(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
index 7538f78616b..7e1a172eaff 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicy> PatchAsync(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
index 2eabcf63f61..e4f3ff6259c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
@@ -53,7 +53,7 @@ public TargetAppsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.AppliedPolicies.Item.TargetApps.TargetAppsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.AppliedPolicies.Item.TargetApps.TargetAppsPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
index f5abb3f982b..aad8c08d2a0 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/AppliedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
@@ -35,7 +35,7 @@ public TargetAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         }
         /// <summary>
         /// Not yet documented
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-targetedmanagedappprotection-targetapps?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedapppolicy-targetapps?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="body">The request body</param>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedA
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.AppliedPolicies.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.AppliedPolicies.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/IntendedPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/IntendedPoliciesRequestBuilder.cs
index f98d870eff9..9e7c56c9dd4 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/IntendedPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/IntendedPoliciesRequestBuilder.cs
@@ -93,7 +93,7 @@ public IntendedPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicy> PostAsync(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
index bf6cd05e6e9..10cce9a2849 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/ManagedAppPolicyItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicy> PatchAsync(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
index ba03c208a3d..474ef9d230c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsPostRequestBody.cs
@@ -53,7 +53,7 @@ public TargetAppsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.IntendedPolicies.Item.TargetApps.TargetAppsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.IntendedPolicies.Item.TargetApps.TargetAppsPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
index e71e0944982..12e94517b70 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/IntendedPolicies/Item/TargetApps/TargetAppsRequestBuilder.cs
@@ -35,7 +35,7 @@ public TargetAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         }
         /// <summary>
         /// Not yet documented
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-targetedmanagedappprotection-targetapps?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedapppolicy-targetapps?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="body">The request body</param>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedA
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.IntendedPolicies.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.Item.IntendedPolicies.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/ManagedAppRegistrationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/ManagedAppRegistrationItemRequestBuilder.cs
index 3ca3fc016b7..59dbc55a925 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/ManagedAppRegistrationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/ManagedAppRegistrationItemRequestBuilder.cs
@@ -75,8 +75,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the iosManagedAppRegistration object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-iosmanagedappregistration-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the managedAppRegistration object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedappregistration-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedAppRegistration"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppRegistration> PatchAsync(global::Microsoft.Graph.Models.ManagedAppRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the iosManagedAppRegistration object.
+        /// Read properties and relationships of the managedAppRegistration object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -201,7 +201,7 @@ public partial class ManagedAppRegistrationItemRequestBuilderDeleteRequestConfig
         {
         }
         /// <summary>
-        /// Read properties and relationships of the iosManagedAppRegistration object.
+        /// Read properties and relationships of the managedAppRegistration object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedAppRegistrationItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/Item/ManagedAppOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/Item/ManagedAppOperationItemRequestBuilder.cs
index f5589ebbacf..804dd2460e1 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/Item/ManagedAppOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/Item/ManagedAppOperationItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppOperation> PatchAsync(global::Microsoft.Graph.Models.ManagedAppOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/OperationsRequestBuilder.cs
index 4870d5ab462..576bc1fc5bc 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/Item/Operations/OperationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ManagedAppOperation> PostAsync(global::Microsoft.Graph.Models.ManagedAppOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedAppOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/ManagedAppRegistrationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/ManagedAppRegistrationsRequestBuilder.cs
index a22129d7dd6..9c090ccf87f 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/ManagedAppRegistrationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppRegistrations/ManagedAppRegistrationsRequestBuilder.cs
@@ -60,8 +60,8 @@ public ManagedAppRegistrationsRequestBuilder(string rawUrl, IRequestAdapter requ
         {
         }
         /// <summary>
-        /// List properties and relationships of the androidManagedAppRegistration objects.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-androidmanagedappregistration-list?view=graph-rest-1.0" />
+        /// List properties and relationships of the iosManagedAppRegistration objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-iosmanagedappregistration-list?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedAppRegistrationCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -101,7 +101,7 @@ public ManagedAppRegistrationsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.ManagedAppRegistration> PostAsync(global::Microsoft.Graph.Models.ManagedAppRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -110,7 +110,7 @@ public ManagedAppRegistrationsRequestBuilder(string rawUrl, IRequestAdapter requ
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ManagedAppRegistration>(requestInfo, global::Microsoft.Graph.Models.ManagedAppRegistration.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List properties and relationships of the androidManagedAppRegistration objects.
+        /// List properties and relationships of the iosManagedAppRegistration objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedAppRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppRegistrations.ManagedAppRegistrationsRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List properties and relationships of the androidManagedAppRegistration objects.
+        /// List properties and relationships of the iosManagedAppRegistration objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedAppRegistrationsRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/Item/ManagedAppStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/Item/ManagedAppStatusItemRequestBuilder.cs
index 895b67bd9e8..5c70601daa1 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/Item/ManagedAppStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/Item/ManagedAppStatusItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppStatus> PatchAsync(global::Microsoft.Graph.Models.ManagedAppStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/ManagedAppStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/ManagedAppStatusesRequestBuilder.cs
index 373b86368d7..b1da40cdde2 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/ManagedAppStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedAppStatuses/ManagedAppStatusesRequestBuilder.cs
@@ -54,8 +54,8 @@ public ManagedAppStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         {
         }
         /// <summary>
-        /// List properties and relationships of the managedAppStatus objects.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedappstatus-list?view=graph-rest-1.0" />
+        /// List properties and relationships of the managedAppStatusRaw objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-managedappstatusraw-list?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedAppStatusCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -94,7 +94,7 @@ public ManagedAppStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.ManagedAppStatus> PostAsync(global::Microsoft.Graph.Models.ManagedAppStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -103,7 +103,7 @@ public ManagedAppStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAd
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ManagedAppStatus>(requestInfo, global::Microsoft.Graph.Models.ManagedAppStatus.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List properties and relationships of the managedAppStatus objects.
+        /// List properties and relationships of the managedAppStatusRaw objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedAppStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedAppStatuses.ManagedAppStatusesRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List properties and relationships of the managedAppStatus objects.
+        /// List properties and relationships of the managedAppStatusRaw objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedAppStatusesRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignPostRequestBody.cs
index 5ff8a446f78..38ce19d27df 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.ManagedEBooks.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.ManagedEBooks.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedEBookAssignment>("managedEBookAssignments", ManagedEBookAssignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignRequestBuilder.cs
index dc444d4429a..cd374c009ce 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assign/AssignRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedE
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.ManagedEBooks.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.ManagedEBooks.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/AssignmentsRequestBuilder.cs
index 7ae5da68b13..d193408f70b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -78,8 +78,8 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ManagedEBookAssignmentCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.ManagedEBookAssignmentCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new iosVppEBookAssignment object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-iosvppebookassignment-create?view=graph-rest-1.0" />
+        /// Create a new managedEBookAssignment object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-managedebookassignment-create?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedEBookAssignment"/></returns>
         /// <param name="body">The request body</param>
@@ -95,7 +95,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ManagedEBookAssignment> PostAsync(global::Microsoft.Graph.Models.ManagedEBookAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -123,7 +123,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a new iosVppEBookAssignment object.
+        /// Create a new managedEBookAssignment object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedEBookAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/Item/ManagedEBookAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/Item/ManagedEBookAssignmentItemRequestBuilder.cs
index 5528a522158..a9ec8781e4c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/Item/ManagedEBookAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/Assignments/Item/ManagedEBookAssignmentItemRequestBuilder.cs
@@ -35,8 +35,8 @@ public ManagedEBookAssignmentItemRequestBuilder(string rawUrl, IRequestAdapter r
         {
         }
         /// <summary>
-        /// Deletes a managedEBookAssignment.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-managedebookassignment-delete?view=graph-rest-1.0" />
+        /// Deletes a iosVppEBookAssignment.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-iosvppebookassignment-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -58,8 +58,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the managedEBookAssignment object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-managedebookassignment-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the iosVppEBookAssignment object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-iosvppebookassignment-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedEBookAssignment"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedEBookAssignment> PatchAsync(global::Microsoft.Graph.Models.ManagedEBookAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ManagedEBookAssignment>(requestInfo, global::Microsoft.Graph.Models.ManagedEBookAssignment.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Deletes a managedEBookAssignment.
+        /// Deletes a iosVppEBookAssignment.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -127,7 +127,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the managedEBookAssignment object.
+        /// Read properties and relationships of the iosVppEBookAssignment object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedEBookAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -185,7 +185,7 @@ public partial class ManagedEBookAssignmentItemRequestBuilderDeleteRequestConfig
         {
         }
         /// <summary>
-        /// Read properties and relationships of the managedEBookAssignment object.
+        /// Read properties and relationships of the iosVppEBookAssignment object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedEBookAssignmentItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/DeviceStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/DeviceStatesRequestBuilder.cs
index 3d831d9154e..c1e08dd3e39 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/DeviceStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/DeviceStatesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceStatesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeviceInstallState> PostAsync(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs
index fafd42f917d..1402578b231 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceInstallState> PatchAsync(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/InstallSummary/InstallSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/InstallSummary/InstallSummaryRequestBuilder.cs
index df22f71cf72..cc5a8ae9c98 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/InstallSummary/InstallSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/InstallSummary/InstallSummaryRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EBookInstallSummary> PatchAsync(global::Microsoft.Graph.Models.EBookInstallSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EBookInstallSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/ManagedEBookItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/ManagedEBookItemRequestBuilder.cs
index 2613cba923e..ffb3c3994b8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/ManagedEBookItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/ManagedEBookItemRequestBuilder.cs
@@ -88,8 +88,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the managedEBook object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-managedebook-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the iosVppEBook object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-books-iosvppebook-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedEBook"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -129,7 +129,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedEBook> PatchAsync(global::Microsoft.Graph.Models.ManagedEBook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the managedEBook object.
+        /// Read properties and relationships of the iosVppEBook object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -190,7 +190,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedEBook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -215,7 +215,7 @@ public partial class ManagedEBookItemRequestBuilderDeleteRequestConfiguration :
         {
         }
         /// <summary>
-        /// Read properties and relationships of the managedEBook object.
+        /// Read properties and relationships of the iosVppEBook object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedEBookItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/DeviceStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/DeviceStatesRequestBuilder.cs
index 969c023972a..9b87903a4ff 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/DeviceStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/DeviceStatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceStatesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeviceInstallState> PostAsync(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs
index 2606300af45..609f144e13b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/DeviceStates/Item/DeviceInstallStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceInstallState> PatchAsync(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceInstallState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/UserInstallStateSummaryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/UserInstallStateSummaryItemRequestBuilder.cs
index 37f83ead00b..9cb6913ea61 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/UserInstallStateSummaryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/Item/UserInstallStateSummaryItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserInstallStateSummary> PatchAsync(global::Microsoft.Graph.Models.UserInstallStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserInstallStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/UserStateSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/UserStateSummaryRequestBuilder.cs
index a36a308e46c..de58b09df77 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/UserStateSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/Item/UserStateSummary/UserStateSummaryRequestBuilder.cs
@@ -95,7 +95,7 @@ public UserStateSummaryRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.UserInstallStateSummary> PostAsync(global::Microsoft.Graph.Models.UserInstallStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserInstallStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/ManagedEBooksRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/ManagedEBooksRequestBuilder.cs
index e93b6ff31d0..8d464628384 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/ManagedEBooksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/ManagedEBooks/ManagedEBooksRequestBuilder.cs
@@ -95,7 +95,7 @@ public ManagedEBooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.ManagedEBook> PostAsync(global::Microsoft.Graph.Models.ManagedEBook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedEBook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
index 119605e3387..3e9af3110d2 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PostAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
index 9b48daa8c00..2a6f76bbe3b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs
index d5456902853..45a65334ed1 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExemptAppLockerFilesRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PostAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
index 0bc02c2c79b..53c9c2652e5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PatchAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/MdmWindowsInformationProtectionPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/MdmWindowsInformationProtectionPolicyItemRequestBuilder.cs
index ac71cacb7b7..8f752e4874d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/MdmWindowsInformationProtectionPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/MdmWindowsInformationProtectionPolicyItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy> PatchAsync(global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
index d4f19db468c..e222eab61d1 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PatchAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs
index 3de982a3d17..505a89745d5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ProtectedAppLockerFilesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PostAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/MdmWindowsInformationProtectionPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/MdmWindowsInformationProtectionPoliciesRequestBuilder.cs
index 801a5fbcfdb..04fa0095945 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/MdmWindowsInformationProtectionPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MdmWindowsInformationProtectionPolicies/MdmWindowsInformationProtectionPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public MdmWindowsInformationProtectionPoliciesRequestBuilder(string rawUrl, IReq
         public async Task<global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy> PostAsync(global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/Item/MobileAppCategoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/Item/MobileAppCategoryItemRequestBuilder.cs
index 66b532a212c..d2d53e91cc3 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/Item/MobileAppCategoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/Item/MobileAppCategoryItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppCategory> PatchAsync(global::Microsoft.Graph.Models.MobileAppCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/MobileAppCategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/MobileAppCategoriesRequestBuilder.cs
index cc2ac8e4398..9214bdddf25 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/MobileAppCategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppCategories/MobileAppCategoriesRequestBuilder.cs
@@ -95,7 +95,7 @@ public MobileAppCategoriesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.MobileAppCategory> PostAsync(global::Microsoft.Graph.Models.MobileAppCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignPostRequestBody.cs
index a4660ae4ff3..a608c1129e7 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileAppConfigurations.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileAppConfigurations.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment>("assignments", Assignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignRequestBuilder.cs
index 606ced76d89..d6c2e991fd6 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assign/AssignRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAppConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileAppConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
index 7eefacb10b6..888fd265e8e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment> PostAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/Item/ManagedDeviceMobileAppConfigurationAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/Item/ManagedDeviceMobileAppConfigurationAssignmentItemRequestBuilder.cs
index ddd1e1c8c6d..552a4095d42 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/Item/ManagedDeviceMobileAppConfigurationAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/Assignments/Item/ManagedDeviceMobileAppConfigurationAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment> PatchAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatusSummary/DeviceStatusSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatusSummary/DeviceStatusSummaryRequestBuilder.cs
index 5308c5cc1f2..1d2e26459a8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatusSummary/DeviceStatusSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatusSummary/DeviceStatusSummaryRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceSummary> PatchAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
index bc7dda74f36..ffa3ae5cfb5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus> PostAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/Item/ManagedDeviceMobileAppConfigurationDeviceStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/Item/ManagedDeviceMobileAppConfigurationDeviceStatusItemRequestBuilder.cs
index 48bde2be72d..4ba27be4c56 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/Item/ManagedDeviceMobileAppConfigurationDeviceStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/DeviceStatuses/Item/ManagedDeviceMobileAppConfigurationDeviceStatusItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus> PatchAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/ManagedDeviceMobileAppConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/ManagedDeviceMobileAppConfigurationItemRequestBuilder.cs
index e1062f6f1d2..d628ec40c34 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/ManagedDeviceMobileAppConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/ManagedDeviceMobileAppConfigurationItemRequestBuilder.cs
@@ -94,8 +94,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the managedDeviceMobileAppConfiguration object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-manageddevicemobileappconfiguration-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the iosMobileAppConfiguration object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-iosmobileappconfiguration-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -135,7 +135,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration> PatchAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the managedDeviceMobileAppConfiguration object.
+        /// Read properties and relationships of the iosMobileAppConfiguration object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -196,7 +196,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -221,7 +221,7 @@ public partial class ManagedDeviceMobileAppConfigurationItemRequestBuilderDelete
         {
         }
         /// <summary>
-        /// Read properties and relationships of the managedDeviceMobileAppConfiguration object.
+        /// Read properties and relationships of the iosMobileAppConfiguration object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ManagedDeviceMobileAppConfigurationItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatusSummary/UserStatusSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatusSummary/UserStatusSummaryRequestBuilder.cs
index b2f59f2e50f..c882a9ce581 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatusSummary/UserStatusSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatusSummary/UserStatusSummaryRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserSummary> PatchAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/Item/ManagedDeviceMobileAppConfigurationUserStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/Item/ManagedDeviceMobileAppConfigurationUserStatusItemRequestBuilder.cs
index de76067e157..711dcda0ef8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/Item/ManagedDeviceMobileAppConfigurationUserStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/Item/ManagedDeviceMobileAppConfigurationUserStatusItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus> PatchAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs
index 7dfec1f8754..1436c7486a9 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public UserStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus> PostAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/MobileAppConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/MobileAppConfigurationsRequestBuilder.cs
index 1ba9b0ffa86..73e5c90a85f 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/MobileAppConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppConfigurations/MobileAppConfigurationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public MobileAppConfigurationsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration> PostAsync(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/Item/MobileAppRelationshipItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/Item/MobileAppRelationshipItemRequestBuilder.cs
index 2690d0b8ecf..39db7b2a21a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/Item/MobileAppRelationshipItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/Item/MobileAppRelationshipItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppRelationship> PatchAsync(global::Microsoft.Graph.Models.MobileAppRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/MobileAppRelationshipsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/MobileAppRelationshipsRequestBuilder.cs
index 7fa6832b0c7..c551f018747 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/MobileAppRelationshipsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileAppRelationships/MobileAppRelationshipsRequestBuilder.cs
@@ -93,7 +93,7 @@ public MobileAppRelationshipsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.MobileAppRelationship> PostAsync(global::Microsoft.Graph.Models.MobileAppRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignPostRequestBody.cs
index 18ab747cfff..80b22a5c1d6 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppAssignment>("mobileAppAssignments", MobileAppAssignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignRequestBuilder.cs
index 97839f2830a..e2eecba3e37 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assign/AssignRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/AssignmentsRequestBuilder.cs
index 302fb5a31e7..d1385e87f9e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 2c6c0a1325c..5ab485c4a7c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs
index b1f21125213..45a49ba57d8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 628648d2221..3169e96b047 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
index 2e55da33899..e68b7f9ac53 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index e02ee2f6b61..28764120ade 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 25e158247fe..2cb4dec1ae5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index a80bb8ff7e5..f4340d3bf9e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index e3718127dd3..d560e19145e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index bd5121ce8db..9e49c5b2d28 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 611da440de2..0c9f43ae6b4 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index e5e5b32b0c3..3f2e5561cee 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/AssignmentsRequestBuilder.cs
index 4e68fdfd92b..a50a09b81d7 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 743edc41d6f..874957ff3b4 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphAndroidStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/AssignmentsRequestBuilder.cs
index d68d76bcf84..40056752679 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index b57521f142e..5fa2fd2e183 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
index 6df8a28afd0..d04a91f3749 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index f136ddef127..61d6873010b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 463c9b05227..deebb1e3082 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index 177b7b4ba06..8746e91d3e9 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index 8531619869c..7762da7e832 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphIosLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphIosLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 6888ce1b9b8..e327e560e1f 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphIosLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphIosLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 14161b00a9d..1069a275de0 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 6d76e9f509f..3bd0346a7cb 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/AssignmentsRequestBuilder.cs
index d4a1d545a2f..72a237731a2 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 89067ef0081..20e4e1c134a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosStoreApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/AssignmentsRequestBuilder.cs
index c1bf6afe333..e9495b14272 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 5a5a6332c77..aba4868745e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphIosVppApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/AssignmentsRequestBuilder.cs
index 8949d7b3156..0ce2bc01f9f 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 1cae1a686c9..21e1c43b1d4 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/ContentVersionsRequestBuilder.cs
index aaddf630461..5bb4f3dc2d8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index dc5f00f1a03..2a18d71f3c1 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 305957c5dcc..3026d2971d5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index 276b0062900..fd0ce2efc28 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index 0711c6e67c5..489851f1a70 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSDmgApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSDmgApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 06aae267bd1..0c3863ac4e7 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSDmgApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSDmgApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 37bb49eb70c..3bc2918f739 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 3a31ceba7b8..3425aa0188a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSDmgApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/AssignmentsRequestBuilder.cs
index 75787b8fb26..e60f6b218b8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 9049cb2305a..f17dfc60604 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
index 259837b5900..0d4de668f27 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index b8ec5b72451..6b6b86a9a4d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index d9359b439f6..95040d8c6b2 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index 7c6dc5de4a5..8d2d0dc60d7 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index 6a0b570f9cf..a6a85a10280 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index eb16bfb39fb..d1c6d2b4bfb 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphMacOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 38752b76b59..1a6ef8c9ce2 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 26bdf06e235..a0b4d3ca4c9 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMacOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs
index f34ead2761d..6fab720babe 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 7afd9fa73af..d47ea2064d7 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
index 7dae89c9ada..6b15b489eff 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index 17f06aa067e..7a33905934b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 21ff8b531e4..a8676c5800d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index caceea3d766..488c9745d21 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index c91470b329a..93de37442b9 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 4f16801f777..2bbd8172d07 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedAndroidLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 9a2331f3506..debe24d7179 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 84eb7e0234a..615b31bb04b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedAndroidLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/AssignmentsRequestBuilder.cs
index c74dc8a7dae..9a762a07899 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 81c48f9b24e..969990b1abe 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
index 204d4d5d7dd..ecd8a2a1aa0 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index ddb630c6945..9ec5afc76d5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 6d35ff80bcb..584d50c5b46 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index 5237ad25c24..48bf5618d45 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index fa0b90dff0f..37ae9518372 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedIOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedIOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index c8ffa4e20d6..98d7f88217e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedIOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedIOSLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 4d993d3a98d..ac6af8fbbfb 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index b84d4221f1f..e402bfda05a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedIOSLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/AssignmentsRequestBuilder.cs
index cc23538f1df..6e977a6924d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index f9bfd1ed739..620df32349a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
index 63813d4c65a..e6e419ec423 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index 282af95b0a2..e3e043a194b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 33f635b2811..63394432346 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index d45b6f77f80..ff9d9cb30e3 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index f7823a3ce1f..149fdf28324 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedMobileLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedMobileLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 52f1554721d..51412351d09 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedMobileLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphManagedMobileLobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index df352e24317..7eab9161983 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 3120bba4c9b..bd5c8c19e44 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphManagedMobileLobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/AssignmentsRequestBuilder.cs
index 10da3ccdf3b..77918b4a618 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index ef18fb6be86..e104ad0b9ba 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphMicrosoftStoreForBusinessApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/AssignmentsRequestBuilder.cs
index 5d6289d9ea2..62d3695134b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 9faaece20e2..accd34a8e11 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/ContentVersionsRequestBuilder.cs
index 2297f27131d..cefab877af4 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index 4a56d3d21b1..a760f199ccb 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index e4741d3c538..ba9f9cef0cb 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
index 1fb82ae581e..2b9af0e7b39 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index 25920aa81a9..d7ee18f3752 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWin32LobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWin32LobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 33a529e754c..5764610e4a3 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWin32LobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWin32LobApp.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 901d4543b5c..dc17a693298 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 1491221490a..f45cca0837a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWin32LobApp/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/AssignmentsRequestBuilder.cs
index 898c4110f00..6db1771e17e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 405f69bf8b5..a639cc998b5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/ContentVersionsRequestBuilder.cs
index 0befe310a7b..59fcc49aa2d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index 30fe750bb6a..f4973c5847f 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 2b52ae72e1a..fee97f394ab 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs
index dca04e0ebee..dd71bb09874 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index a82e6d928f7..9f2194d755e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 4dbf0afab0b..d1b08b728f5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 10215430e41..54d4a2df3bc 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 9a1f2f904d1..eefbca57178 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/AssignmentsRequestBuilder.cs
index 5fa3b37f905..ad8f485677c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 3997d3807f6..95f73821b3e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/ContentVersionsRequestBuilder.cs
index 9b4b61e5a57..d55a0244b97 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index f67ce5a061b..3ea61ee8d28 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 5fa850a30ba..f9ab4bcbf4b 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/FilesRequestBuilder.cs
index dc6c1a15efd..5bc72c07b2d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index d81cf76cc2e..3ab463592bc 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsMobileMSI.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsMobileMSI.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 5e28f89b8ed..8d454b1d385 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsMobileMSI.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsMobileMSI.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 3e14e427e72..b35e58a3a03 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index e3b64c516d4..31197d4b196 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsMobileMSI/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/AssignmentsRequestBuilder.cs
index 3f5bb0dab53..6fc2c9452b5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 8d7ed5869cf..1d5c4627b72 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/CommittedContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/CommittedContainedAppsRequestBuilder.cs
index 5008c184c99..041993d19d2 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/CommittedContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/CommittedContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CommittedContainedAppsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index 5d45d8dc954..78cb5fe0a8a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/CommittedContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/ContentVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/ContentVersionsRequestBuilder.cs
index a1d9bfad692..602201cebe1 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/ContentVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/ContentVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentVersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PostAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
index 32474b9eead..9b7386d2471 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/ContainedAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContainedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PostAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
index a8ee975306c..f2ae0716022 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/ContainedApps/Item/MobileContainedAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileContainedApp> PatchAsync(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileContainedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs
index a260041ec84..eaa44fca0ad 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/FilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PostAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
index b8428db07fd..0cd48eaf160 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitPostRequestBody.cs
@@ -53,7 +53,7 @@ public CommitPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsUniversalAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsUniversalAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileEncryptionInfo>("fileEncryptionInfo", FileEncryptionInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
index 65d13993c77..8c46f293399 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/Commit/CommitRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileAp
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsUniversalAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.MobileApps.Item.GraphWindowsUniversalAppX.ContentVersions.Item.Files.Item.Commit.CommitPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
index 1bccc400a27..079a50b4437 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/Files/Item/MobileAppContentFileItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContentFile> PatchAsync(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContentFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
index 17a9a22e0c2..9c2dfb27c02 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsUniversalAppX/ContentVersions/Item/MobileAppContentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppContent> PatchAsync(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/AssignmentsRequestBuilder.cs
index 45dcffad371..4577bc4a46c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PostAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
index 7607919a277..bf06e968369 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/GraphWindowsWebApp/Assignments/Item/MobileAppAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppAssignment> PatchAsync(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/MobileAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/MobileAppItemRequestBuilder.cs
index 86532c49355..3866f61bc36 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/MobileAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/Item/MobileAppItemRequestBuilder.cs
@@ -149,8 +149,8 @@ public MobileAppItemRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         {
         }
         /// <summary>
-        /// Deletes a iosiPadOSWebClip.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-iosipadoswebclip-delete?view=graph-rest-1.0" />
+        /// Deletes a windowsAppX.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-windowsappx-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -172,8 +172,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the macOSOfficeSuiteApp object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-macosofficesuiteapp-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the managedAndroidStoreApp object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-managedandroidstoreapp-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MobileApp"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -196,8 +196,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MobileApp>(requestInfo, global::Microsoft.Graph.Models.MobileApp.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of a managedIOSStoreApp object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-managediosstoreapp-update?view=graph-rest-1.0" />
+        /// Update the properties of a androidLobApp object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-androidlobapp-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MobileApp"/></returns>
         /// <param name="body">The request body</param>
@@ -213,7 +213,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileApp> PatchAsync(global::Microsoft.Graph.Models.MobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -222,7 +222,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MobileApp>(requestInfo, global::Microsoft.Graph.Models.MobileApp.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Deletes a iosiPadOSWebClip.
+        /// Deletes a windowsAppX.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -241,7 +241,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the macOSOfficeSuiteApp object.
+        /// Read properties and relationships of the managedAndroidStoreApp object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -260,7 +260,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of a managedIOSStoreApp object.
+        /// Update the properties of a androidLobApp object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -274,7 +274,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -299,7 +299,7 @@ public partial class MobileAppItemRequestBuilderDeleteRequestConfiguration : Req
         {
         }
         /// <summary>
-        /// Read properties and relationships of the macOSOfficeSuiteApp object.
+        /// Read properties and relationships of the managedAndroidStoreApp object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class MobileAppItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/MobileAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/MobileAppsRequestBuilder.cs
index 614bcddded0..ad68b9702b2 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/MobileAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/MobileApps/MobileAppsRequestBuilder.cs
@@ -150,8 +150,8 @@ public MobileAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         {
         }
         /// <summary>
-        /// List properties and relationships of the managedApp objects.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-managedapp-list?view=graph-rest-1.0" />
+        /// List properties and relationships of the windowsWebApp objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-windowswebapp-list?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MobileAppCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -174,8 +174,8 @@ public MobileAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MobileAppCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.MobileAppCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new win32LobApp object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-win32lobapp-create?view=graph-rest-1.0" />
+        /// Create a new windowsMicrosoftEdgeApp object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-apps-windowsmicrosoftedgeapp-create?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MobileApp"/></returns>
         /// <param name="body">The request body</param>
@@ -191,7 +191,7 @@ public MobileAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.MobileApp> PostAsync(global::Microsoft.Graph.Models.MobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -200,7 +200,7 @@ public MobileAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MobileApp>(requestInfo, global::Microsoft.Graph.Models.MobileApp.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List properties and relationships of the managedApp objects.
+        /// List properties and relationships of the windowsWebApp objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -219,7 +219,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a new win32LobApp object.
+        /// Create a new windowsMicrosoftEdgeApp object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -233,7 +233,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -250,7 +250,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.DeviceAppManagement.MobileApps.MobileAppsRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List properties and relationships of the managedApp objects.
+        /// List properties and relationships of the windowsWebApp objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class MobileAppsRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/AppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/AppsRequestBuilder.cs
index 05b27419a6c..c45fe97385d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/AppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/AppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PostAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
index c6c40734bf8..c4ba6067b5c 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Apps/Item/ManagedMobileAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedMobileApp> PatchAsync(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedMobileApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignPostRequestBody.cs
index 121772e5a87..46f01968b0f 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment>("assignments", Assignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignRequestBuilder.cs
index 6e6b6c67791..2b8060539e8 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assign/AssignRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.Targeted
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
index 2b9c6fd95fb..85a3d5bce94 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PostAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
index 4b9915e52de..93c94984d35 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
index f996c3d456f..7ff55a436e6 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/DeploymentSummary/DeploymentSummaryRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary> PatchAsync(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsPostRequestBody.cs
index 1960b7aeac6..98d785a6655 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsPostRequestBody.cs
@@ -59,7 +59,7 @@ public TargetAppsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.TargetApps.TargetAppsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.TargetApps.TargetAppsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TargetedManagedAppGroupType>("appGroupType", AppGroupType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsRequestBuilder.cs
index b59c06aa116..3802a37bb5a 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetApps/TargetAppsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.Targeted
         public async Task PostAsync(global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceAppManagement.TargetedManagedAppConfigurations.Item.TargetApps.TargetAppsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetedManagedAppConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetedManagedAppConfigurationItemRequestBuilder.cs
index 4b25a144233..1659350598f 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetedManagedAppConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/Item/TargetedManagedAppConfigurationItemRequestBuilder.cs
@@ -129,7 +129,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppConfiguration> PatchAsync(global::Microsoft.Graph.Models.TargetedManagedAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -190,7 +190,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/TargetedManagedAppConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/TargetedManagedAppConfigurationsRequestBuilder.cs
index d3affe808a7..a58b007986d 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/TargetedManagedAppConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/TargetedManagedAppConfigurations/TargetedManagedAppConfigurationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TargetedManagedAppConfigurationsRequestBuilder(string rawUrl, IRequestAda
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppConfiguration> PostAsync(global::Microsoft.Graph.Models.TargetedManagedAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/Item/VppTokenItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/Item/VppTokenItemRequestBuilder.cs
index 27115f472b3..858b67bc116 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/Item/VppTokenItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/Item/VppTokenItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VppToken> PatchAsync(global::Microsoft.Graph.Models.VppToken body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VppToken body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/VppTokensRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/VppTokensRequestBuilder.cs
index 459a02898eb..56c6460059e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/VppTokensRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/VppTokens/VppTokensRequestBuilder.cs
@@ -95,7 +95,7 @@ public VppTokensRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.VppToken> PostAsync(global::Microsoft.Graph.Models.VppToken body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VppToken body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
index 86b62e6b7d3..d4351735cd3 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PostAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
index 38c73f45609..f9898b66e6e 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/Assignments/Item/TargetedManagedAppPolicyAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs
index 13f4950e5ed..4e2528143b5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/ExemptAppLockerFilesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ExemptAppLockerFilesRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PostAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
index 29455d08ad9..159c55de9e5 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ExemptAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PatchAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
index 1cd8436f38a..265bb178d43 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/Item/WindowsInformationProtectionAppLockerFileItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PatchAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs
index 6da47a6aa93..5c4e9282315 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/ProtectedAppLockerFiles/ProtectedAppLockerFilesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ProtectedAppLockerFilesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile> PostAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/WindowsInformationProtectionPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/WindowsInformationProtectionPolicyItemRequestBuilder.cs
index 16dd4c46cec..cdd52952aea 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/WindowsInformationProtectionPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/Item/WindowsInformationProtectionPolicyItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy> PatchAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/WindowsInformationProtectionPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/WindowsInformationProtectionPoliciesRequestBuilder.cs
index 102008a39cf..77b76ebd1fe 100644
--- a/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/WindowsInformationProtectionPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceAppManagement/WindowsInformationProtectionPolicies/WindowsInformationProtectionPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public WindowsInformationProtectionPoliciesRequestBuilder(string rawUrl, IReques
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy> PostAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/ApplePushNotificationCertificateRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/ApplePushNotificationCertificateRequestBuilder.cs
index 8c4e3739a0e..2903ff35c6a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/ApplePushNotificationCertificateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/ApplePushNotificationCertificateRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ApplePushNotificationCertificate> PatchAsync(global::Microsoft.Graph.Models.ApplePushNotificationCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ApplePushNotificationCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestGetResponse.cs
index 7a98de8be7b..5691c0af773 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestGetResponse.cs
@@ -52,7 +52,7 @@ public DownloadApplePushNotificationCertificateSigningRequestGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ApplePushNotificationCertificate.DownloadApplePushNotificationCertificateSigningRequest.DownloadApplePushNotificationCertificateSigningRequestGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ApplePushNotificationCertificate.DownloadApplePushNotificationCertificateSigningRequest.DownloadApplePushNotificationCertificateSigningRequestGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestResponse.cs
index ffc3b621d4c..cc59a773ef9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ApplePushNotificationCertificate/DownloadApplePushNotificationCertificateSigningRequest/DownloadApplePushNotificationCertificateSigningRequestResponse.cs
@@ -20,7 +20,7 @@ public partial class DownloadApplePushNotificationCertificateSigningRequestRespo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.ApplePushNotificationCertificate.DownloadApplePushNotificationCertificateSigningRequest.DownloadApplePushNotificationCertificateSigningRequestResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ApplePushNotificationCertificate.DownloadApplePushNotificationCertificateSigningRequest.DownloadApplePushNotificationCertificateSigningRequestResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/AuditEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/AuditEventsRequestBuilder.cs
index 3f75c4f918e..0206d8e0ace 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/AuditEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/AuditEventsRequestBuilder.cs
@@ -112,7 +112,7 @@ public AuditEventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AuditEvent> PostAsync(global::Microsoft.Graph.Models.AuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryGetResponse.cs
index 3f46240160e..4cefd1f14e2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditActivityTypesWithCategory.GetAuditActivityTypesWithCategoryGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditActivityTypesWithCategory.GetAuditActivityTypesWithCategoryGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryResponse.cs
index 9743692de01..27433618621 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditActivityTypesWithCategory/GetAuditActivityTypesWithCategoryResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAuditActivityTypesWithCategoryResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditActivityTypesWithCategory.GetAuditActivityTypesWithCategoryResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditActivityTypesWithCategory.GetAuditActivityTypesWithCategoryResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesGetResponse.cs
index e62da0d00c9..27f7c536439 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditCategories.GetAuditCategoriesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditCategories.GetAuditCategoriesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesResponse.cs
index c68790f6230..aca7a51e7c2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/GetAuditCategories/GetAuditCategoriesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAuditCategoriesResponse : global::Microsoft.Graph.Device
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditCategories.GetAuditCategoriesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.AuditEvents.GetAuditCategories.GetAuditCategoriesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/Item/AuditEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/Item/AuditEventItemRequestBuilder.cs
index 617821ff5d8..8ff78eb49c7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/Item/AuditEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/AuditEvents/Item/AuditEventItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuditEvent> PatchAsync(global::Microsoft.Graph.Models.AuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/ComplianceManagementPartnersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/ComplianceManagementPartnersRequestBuilder.cs
index aa1f33413a8..accc42ad924 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/ComplianceManagementPartnersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/ComplianceManagementPartnersRequestBuilder.cs
@@ -95,7 +95,7 @@ public ComplianceManagementPartnersRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ComplianceManagementPartner> PostAsync(global::Microsoft.Graph.Models.ComplianceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ComplianceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/Item/ComplianceManagementPartnerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/Item/ComplianceManagementPartnerItemRequestBuilder.cs
index fae61966a1e..14f22ef7aa2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/Item/ComplianceManagementPartnerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ComplianceManagementPartners/Item/ComplianceManagementPartnerItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ComplianceManagementPartner> PatchAsync(global::Microsoft.Graph.Models.ComplianceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ComplianceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ConditionalAccessSettings/ConditionalAccessSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ConditionalAccessSettings/ConditionalAccessSettingsRequestBuilder.cs
index 0f511d05436..694602505cf 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ConditionalAccessSettings/ConditionalAccessSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ConditionalAccessSettings/ConditionalAccessSettingsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnPremisesConditionalAccessSettings> PatchAsync(global::Microsoft.Graph.Models.OnPremisesConditionalAccessSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnPremisesConditionalAccessSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/DetectedAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/DetectedAppsRequestBuilder.cs
index 8bafe5768f5..e7e7362a776 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/DetectedAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/DetectedAppsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DetectedAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DetectedApp> PostAsync(global::Microsoft.Graph.Models.DetectedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DetectedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/Item/DetectedAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/Item/DetectedAppItemRequestBuilder.cs
index 80d664a799d..531cd536cf9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/Item/DetectedAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DetectedApps/Item/DetectedAppItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DetectedApp> PatchAsync(global::Microsoft.Graph.Models.DetectedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DetectedApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/DeviceCategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/DeviceCategoriesRequestBuilder.cs
index e659c9f2b05..2ad03417c14 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/DeviceCategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/DeviceCategoriesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceCategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.DeviceCategory> PostAsync(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/Item/DeviceCategoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/Item/DeviceCategoryItemRequestBuilder.cs
index f0acd2f1bbc..7e692e7436f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/Item/DeviceCategoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCategories/Item/DeviceCategoryItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCategory> PatchAsync(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/DeviceCompliancePoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/DeviceCompliancePoliciesRequestBuilder.cs
index 3f99b498287..737e5b1e853 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/DeviceCompliancePoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/DeviceCompliancePoliciesRequestBuilder.cs
@@ -78,8 +78,8 @@ public DeviceCompliancePoliciesRequestBuilder(string rawUrl, IRequestAdapter req
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceCompliancePolicyCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.DeviceCompliancePolicyCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new androidWorkProfileCompliancePolicy object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-androidworkprofilecompliancepolicy-create?view=graph-rest-1.0" />
+        /// Create a new windows81CompliancePolicy object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-windows81compliancepolicy-create?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceCompliancePolicy"/></returns>
         /// <param name="body">The request body</param>
@@ -95,7 +95,7 @@ public DeviceCompliancePoliciesRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicy> PostAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -123,7 +123,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a new androidWorkProfileCompliancePolicy object.
+        /// Create a new windows81CompliancePolicy object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostRequestBody.cs
index 16e0bc8521f..ef040142ac6 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment>("assignments", Assignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostResponse.cs
index 38bacfce2bd..3b8b85d0d1a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AssignPostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignRequestBuilder.cs
index f9e5bb5861c..5b64c400f79 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignRequestBuilder.cs
@@ -51,7 +51,7 @@ public AssignRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostResponse> PostAsAssignPostResponseAsync(global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AssignRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignResponse> PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignResponse.cs
index 28c399f8507..bb5414bee64 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assign/AssignResponse.cs
@@ -20,7 +20,7 @@ public partial class AssignResponse : global::Microsoft.Graph.DeviceManagement.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.Assign.AssignResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/AssignmentsRequestBuilder.cs
index 36ab7285b94..9cbab5ce096 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment> PostAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/Item/DeviceCompliancePolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/Item/DeviceCompliancePolicyAssignmentItemRequestBuilder.cs
index 79c5352b899..059e467e2fb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/Item/DeviceCompliancePolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/Assignments/Item/DeviceCompliancePolicyAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceCompliancePolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceCompliancePolicyItemRequestBuilder.cs
index aa7570d9756..30501f19a4e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceCompliancePolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceCompliancePolicyItemRequestBuilder.cs
@@ -89,8 +89,8 @@ public DeviceCompliancePolicyItemRequestBuilder(string rawUrl, IRequestAdapter r
         {
         }
         /// <summary>
-        /// Deletes a androidWorkProfileCompliancePolicy.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-androidworkprofilecompliancepolicy-delete?view=graph-rest-1.0" />
+        /// Deletes a windows10MobileCompliancePolicy.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-windows10mobilecompliancepolicy-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -112,8 +112,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the iosCompliancePolicy object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-ioscompliancepolicy-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the deviceCompliancePolicy object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-devicecompliancepolicy-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceCompliancePolicy"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -136,8 +136,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceCompliancePolicy>(requestInfo, global::Microsoft.Graph.Models.DeviceCompliancePolicy.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of a androidWorkProfileCompliancePolicy object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-androidworkprofilecompliancepolicy-update?view=graph-rest-1.0" />
+        /// Update the properties of a iosCompliancePolicy object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-ioscompliancepolicy-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceCompliancePolicy"/></returns>
         /// <param name="body">The request body</param>
@@ -153,7 +153,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicy> PatchAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceCompliancePolicy>(requestInfo, global::Microsoft.Graph.Models.DeviceCompliancePolicy.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Deletes a androidWorkProfileCompliancePolicy.
+        /// Deletes a windows10MobileCompliancePolicy.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -181,7 +181,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the iosCompliancePolicy object.
+        /// Read properties and relationships of the deviceCompliancePolicy object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -200,7 +200,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of a androidWorkProfileCompliancePolicy object.
+        /// Update the properties of a iosCompliancePolicy object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -214,7 +214,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -239,7 +239,7 @@ public partial class DeviceCompliancePolicyItemRequestBuilderDeleteRequestConfig
         {
         }
         /// <summary>
-        /// Read properties and relationships of the iosCompliancePolicy object.
+        /// Read properties and relationships of the deviceCompliancePolicy object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class DeviceCompliancePolicyItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs
index 3d6f21aa8e9..a2ff0d28cb9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceSettingStateSummariesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.SettingStateDeviceSummary> PostAsync(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs
index 609978e6797..53fe82560de 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SettingStateDeviceSummary> PatchAsync(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs
index 173eb6010d0..195b0ffb28d 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceDeviceOverview> PatchAsync(global::Microsoft.Graph.Models.DeviceComplianceDeviceOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceDeviceOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
index f1e2b6282fd..62cd3a50c34 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus> PostAsync(global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/Item/DeviceComplianceDeviceStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/Item/DeviceComplianceDeviceStatusItemRequestBuilder.cs
index 5820c89971b..16a04414110 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/Item/DeviceComplianceDeviceStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/DeviceStatuses/Item/DeviceComplianceDeviceStatusItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus> PatchAsync(global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesPostRequestBody.cs
index d1ffca26d3a..d33235e3653 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesPostRequestBody.cs
@@ -53,7 +53,7 @@ public ScheduleActionsForRulesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.ScheduleActionsForRules.ScheduleActionsForRulesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.ScheduleActionsForRules.ScheduleActionsForRulesPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule>("deviceComplianceScheduledActionForRules", DeviceComplianceScheduledActionForRules);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesRequestBuilder.cs
index 638808293e2..f34e28b1b7e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduleActionsForRules/ScheduleActionsForRulesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceCompl
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.ScheduleActionsForRules.ScheduleActionsForRulesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.DeviceCompliancePolicies.Item.ScheduleActionsForRules.ScheduleActionsForRulesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/DeviceComplianceScheduledActionForRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/DeviceComplianceScheduledActionForRuleItemRequestBuilder.cs
index b919ef29863..4f106c75be7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/DeviceComplianceScheduledActionForRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/DeviceComplianceScheduledActionForRuleItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule> PatchAsync(global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/Item/DeviceComplianceActionItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/Item/DeviceComplianceActionItemItemRequestBuilder.cs
index 5a2818bd27f..25cad39cde3 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/Item/DeviceComplianceActionItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/Item/DeviceComplianceActionItemItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceActionItem> PatchAsync(global::Microsoft.Graph.Models.DeviceComplianceActionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceActionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/ScheduledActionConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/ScheduledActionConfigurationsRequestBuilder.cs
index 0293bb39029..690db401916 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/ScheduledActionConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/Item/ScheduledActionConfigurations/ScheduledActionConfigurationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ScheduledActionConfigurationsRequestBuilder(string rawUrl, IRequestAdapte
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceActionItem> PostAsync(global::Microsoft.Graph.Models.DeviceComplianceActionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceActionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/ScheduledActionsForRuleRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/ScheduledActionsForRuleRequestBuilder.cs
index 00b59092280..9e42a5badcf 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/ScheduledActionsForRuleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/ScheduledActionsForRule/ScheduledActionsForRuleRequestBuilder.cs
@@ -95,7 +95,7 @@ public ScheduledActionsForRuleRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule> PostAsync(global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs
index e1af4a665fd..f9c3cac8ca8 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceUserOverview> PatchAsync(global::Microsoft.Graph.Models.DeviceComplianceUserOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceUserOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/Item/DeviceComplianceUserStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/Item/DeviceComplianceUserStatusItemRequestBuilder.cs
index a35cce8740c..53b8d425924 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/Item/DeviceComplianceUserStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/Item/DeviceComplianceUserStatusItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceUserStatus> PatchAsync(global::Microsoft.Graph.Models.DeviceComplianceUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/UserStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/UserStatusesRequestBuilder.cs
index 24512bc4361..ad2654bf4db 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/UserStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicies/Item/UserStatuses/UserStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public UserStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceUserStatus> PostAsync(global::Microsoft.Graph.Models.DeviceComplianceUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicyDeviceStateSummary/DeviceCompliancePolicyDeviceStateSummaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicyDeviceStateSummary/DeviceCompliancePolicyDeviceStateSummaryRequestBuilder.cs
index 8f8740d7320..810cb1714d8 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicyDeviceStateSummary/DeviceCompliancePolicyDeviceStateSummaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicyDeviceStateSummary/DeviceCompliancePolicyDeviceStateSummaryRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyDeviceStateSummary> PatchAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyDeviceStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyDeviceStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/DeviceCompliancePolicySettingStateSummariesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/DeviceCompliancePolicySettingStateSummariesRequestBuilder.cs
index 109f5f78855..f03aea02ffc 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/DeviceCompliancePolicySettingStateSummariesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/DeviceCompliancePolicySettingStateSummariesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceCompliancePolicySettingStateSummariesRequestBuilder(string rawUrl,
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary> PostAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceCompliancePolicySettingStateSummaryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceCompliancePolicySettingStateSummaryItemRequestBuilder.cs
index d930902012f..ee19b18171b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceCompliancePolicySettingStateSummaryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceCompliancePolicySettingStateSummaryItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary> PatchAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/DeviceComplianceSettingStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/DeviceComplianceSettingStatesRequestBuilder.cs
index c3001101a88..ed06a1a721c 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/DeviceComplianceSettingStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/DeviceComplianceSettingStatesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceComplianceSettingStatesRequestBuilder(string rawUrl, IRequestAdapte
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceSettingState> PostAsync(global::Microsoft.Graph.Models.DeviceComplianceSettingState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceSettingState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/Item/DeviceComplianceSettingStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/Item/DeviceComplianceSettingStateItemRequestBuilder.cs
index 88d944e753e..e2688a8ca81 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/Item/DeviceComplianceSettingStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceCompliancePolicySettingStateSummaries/Item/DeviceComplianceSettingStates/Item/DeviceComplianceSettingStateItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceComplianceSettingState> PatchAsync(global::Microsoft.Graph.Models.DeviceComplianceSettingState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceComplianceSettingState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurationDeviceStateSummaries/DeviceConfigurationDeviceStateSummariesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurationDeviceStateSummaries/DeviceConfigurationDeviceStateSummariesRequestBuilder.cs
index 3e3e8737120..9f8bafb0d1f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurationDeviceStateSummaries/DeviceConfigurationDeviceStateSummariesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurationDeviceStateSummaries/DeviceConfigurationDeviceStateSummariesRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationDeviceStateSummary> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationDeviceStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationDeviceStateSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/DeviceConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/DeviceConfigurationsRequestBuilder.cs
index 49048f68537..501aa7dd391 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/DeviceConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/DeviceConfigurationsRequestBuilder.cs
@@ -78,8 +78,8 @@ public DeviceConfigurationsRequestBuilder(string rawUrl, IRequestAdapter request
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceConfigurationCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.DeviceConfigurationCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new windowsPhone81GeneralConfiguration object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-windowsphone81generalconfiguration-create?view=graph-rest-1.0" />
+        /// Create a new androidGeneralDeviceConfiguration object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-androidgeneraldeviceconfiguration-create?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceConfiguration"/></returns>
         /// <param name="body">The request body</param>
@@ -95,7 +95,7 @@ public DeviceConfigurationsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.DeviceConfiguration> PostAsync(global::Microsoft.Graph.Models.DeviceConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -123,7 +123,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a new windowsPhone81GeneralConfiguration object.
+        /// Create a new androidGeneralDeviceConfiguration object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostRequestBody.cs
index ffdc4b4742b..428d324fed2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfigurationAssignment>("assignments", Assignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostResponse.cs
index 334f73a7617..c0df3a079b7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AssignPostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfigurationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignRequestBuilder.cs
index c2849771ca8..7217a4d75f8 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignRequestBuilder.cs
@@ -51,7 +51,7 @@ public AssignRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostResponse> PostAsAssignPostResponseAsync(global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AssignRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignResponse> PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignResponse.cs
index 623a21482d8..ce47c3459c4 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assign/AssignResponse.cs
@@ -20,7 +20,7 @@ public partial class AssignResponse : global::Microsoft.Graph.DeviceManagement.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.Assign.AssignResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
index 32f5f17dda7..3b8d18ceea6 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationAssignment> PostAsync(global::Microsoft.Graph.Models.DeviceConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/Item/DeviceConfigurationAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/Item/DeviceConfigurationAssignmentItemRequestBuilder.cs
index a315c7f98a4..d967d5aef93 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/Item/DeviceConfigurationAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/Assignments/Item/DeviceConfigurationAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationAssignment> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceConfigurationItemRequestBuilder.cs
index def331d4e14..62aeab97401 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceConfigurationItemRequestBuilder.cs
@@ -78,8 +78,8 @@ public DeviceConfigurationItemRequestBuilder(string rawUrl, IRequestAdapter requ
         {
         }
         /// <summary>
-        /// Deletes a macOSDeviceFeaturesConfiguration.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-macosdevicefeaturesconfiguration-delete?view=graph-rest-1.0" />
+        /// Deletes a androidWorkProfileCustomConfiguration.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-androidworkprofilecustomconfiguration-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -101,8 +101,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the macOSCustomConfiguration object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-macoscustomconfiguration-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the iosCustomConfiguration object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-ioscustomconfiguration-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceConfiguration"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -135,8 +135,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.GetOmaSettingPlainTextValueWithSecretReferenceValueId.GetOmaSettingPlainTextValueWithSecretReferenceValueIdRequestBuilder(PathParameters, RequestAdapter, secretReferenceValueId);
         }
         /// <summary>
-        /// Update the properties of a windows10TeamGeneralConfiguration object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-windows10teamgeneralconfiguration-update?view=graph-rest-1.0" />
+        /// Update the properties of a iosDeviceFeaturesConfiguration object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-deviceconfig-iosdevicefeaturesconfiguration-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceConfiguration"/></returns>
         /// <param name="body">The request body</param>
@@ -152,7 +152,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfiguration> PatchAsync(global::Microsoft.Graph.Models.DeviceConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceConfiguration>(requestInfo, global::Microsoft.Graph.Models.DeviceConfiguration.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Deletes a macOSDeviceFeaturesConfiguration.
+        /// Deletes a androidWorkProfileCustomConfiguration.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -180,7 +180,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the macOSCustomConfiguration object.
+        /// Read properties and relationships of the iosCustomConfiguration object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -199,7 +199,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of a windows10TeamGeneralConfiguration object.
+        /// Update the properties of a iosDeviceFeaturesConfiguration object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -213,7 +213,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -238,7 +238,7 @@ public partial class DeviceConfigurationItemRequestBuilderDeleteRequestConfigura
         {
         }
         /// <summary>
-        /// Read properties and relationships of the macOSCustomConfiguration object.
+        /// Read properties and relationships of the iosCustomConfiguration object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class DeviceConfigurationItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs
index a33db251a44..6eb60248cd0 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/DeviceSettingStateSummariesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceSettingStateSummariesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.SettingStateDeviceSummary> PostAsync(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs
index f96a35e53dc..1daacbc5739 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceSettingStateSummaries/Item/SettingStateDeviceSummaryItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SettingStateDeviceSummary> PatchAsync(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SettingStateDeviceSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs
index cade875e65a..6502bc35715 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatusOverview/DeviceStatusOverviewRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationDeviceOverview> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationDeviceOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationDeviceOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
index 2c10b861279..2c17c2a1450 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/DeviceStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus> PostAsync(global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/Item/DeviceConfigurationDeviceStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/Item/DeviceConfigurationDeviceStatusItemRequestBuilder.cs
index e124c9a8b87..666435693c7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/Item/DeviceConfigurationDeviceStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/DeviceStatuses/Item/DeviceConfigurationDeviceStatusItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdGetResponse.cs
index d30c7724d4a..68ab47d644e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdGetResponse.cs
@@ -52,7 +52,7 @@ public GetOmaSettingPlainTextValueWithSecretReferenceValueIdGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.GetOmaSettingPlainTextValueWithSecretReferenceValueId.GetOmaSettingPlainTextValueWithSecretReferenceValueIdGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.GetOmaSettingPlainTextValueWithSecretReferenceValueId.GetOmaSettingPlainTextValueWithSecretReferenceValueIdGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdResponse.cs
index 21c7ccb0c3e..dea12887d7f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/GetOmaSettingPlainTextValueWithSecretReferenceValueId/GetOmaSettingPlainTextValueWithSecretReferenceValueIdResponse.cs
@@ -20,7 +20,7 @@ public partial class GetOmaSettingPlainTextValueWithSecretReferenceValueIdRespon
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.GetOmaSettingPlainTextValueWithSecretReferenceValueId.GetOmaSettingPlainTextValueWithSecretReferenceValueIdResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceConfigurations.Item.GetOmaSettingPlainTextValueWithSecretReferenceValueId.GetOmaSettingPlainTextValueWithSecretReferenceValueIdResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs
index dee48d8afc1..65aa45d5ddd 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatusOverview/UserStatusOverviewRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationUserOverview> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationUserOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationUserOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/Item/DeviceConfigurationUserStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/Item/DeviceConfigurationUserStatusItemRequestBuilder.cs
index d9e0b54154c..199512843d1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/Item/DeviceConfigurationUserStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/Item/DeviceConfigurationUserStatusItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationUserStatus> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs
index 8c3c0fa971c..10a2148ba6a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceConfigurations/Item/UserStatuses/UserStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public UserStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationUserStatus> PostAsync(global::Microsoft.Graph.Models.DeviceConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationUserStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/DeviceEnrollmentConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/DeviceEnrollmentConfigurationsRequestBuilder.cs
index cccca78f8c7..30a324cb9d7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/DeviceEnrollmentConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/DeviceEnrollmentConfigurationsRequestBuilder.cs
@@ -54,8 +54,8 @@ public DeviceEnrollmentConfigurationsRequestBuilder(string rawUrl, IRequestAdapt
         {
         }
         /// <summary>
-        /// List properties and relationships of the deviceEnrollmentPlatformRestrictionsConfiguration objects.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentplatformrestrictionsconfiguration-list?view=graph-rest-1.0" />
+        /// List properties and relationships of the deviceEnrollmentWindowsHelloForBusinessConfiguration objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentwindowshelloforbusinessconfiguration-list?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceEnrollmentConfigurationCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -95,7 +95,7 @@ public DeviceEnrollmentConfigurationsRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration> PostAsync(global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -104,7 +104,7 @@ public DeviceEnrollmentConfigurationsRequestBuilder(string rawUrl, IRequestAdapt
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration>(requestInfo, global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List properties and relationships of the deviceEnrollmentPlatformRestrictionsConfiguration objects.
+        /// List properties and relationships of the deviceEnrollmentWindowsHelloForBusinessConfiguration objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.DeviceEnrollmentConfigurationsRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List properties and relationships of the deviceEnrollmentPlatformRestrictionsConfiguration objects.
+        /// List properties and relationships of the deviceEnrollmentWindowsHelloForBusinessConfiguration objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class DeviceEnrollmentConfigurationsRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignPostRequestBody.cs
index e55f711a939..0ccf2a73f29 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment>("enrollmentConfigurationAssignments", EnrollmentConfigurationAssignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignRequestBuilder.cs
index 578e4b95b88..14ee042cd49 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assign/AssignRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceEnrol
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
index c8d1636ec93..bed07d71355 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment> PostAsync(global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/Item/EnrollmentConfigurationAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/Item/EnrollmentConfigurationAssignmentItemRequestBuilder.cs
index 67f28154352..7b1b9d323ff 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/Item/EnrollmentConfigurationAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/Assignments/Item/EnrollmentConfigurationAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment> PatchAsync(global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/DeviceEnrollmentConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/DeviceEnrollmentConfigurationItemRequestBuilder.cs
index 9d366fcacdc..7f0032ca9a6 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/DeviceEnrollmentConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/DeviceEnrollmentConfigurationItemRequestBuilder.cs
@@ -53,8 +53,8 @@ public DeviceEnrollmentConfigurationItemRequestBuilder(string rawUrl, IRequestAd
         {
         }
         /// <summary>
-        /// Deletes a deviceEnrollmentLimitConfiguration.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentlimitconfiguration-delete?view=graph-rest-1.0" />
+        /// Deletes a deviceEnrollmentWindowsHelloForBusinessConfiguration.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentwindowshelloforbusinessconfiguration-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -76,8 +76,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read properties and relationships of the deviceEnrollmentPlatformRestrictionsConfiguration object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentplatformrestrictionsconfiguration-get?view=graph-rest-1.0" />
+        /// Read properties and relationships of the deviceEnrollmentLimitConfiguration object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentlimitconfiguration-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -100,8 +100,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration>(requestInfo, global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of a deviceEnrollmentPlatformRestrictionsConfiguration object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentplatformrestrictionsconfiguration-update?view=graph-rest-1.0" />
+        /// Update the properties of a deviceEnrollmentLimitConfiguration object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-deviceenrollmentlimitconfiguration-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration"/></returns>
         /// <param name="body">The request body</param>
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration> PatchAsync(global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration>(requestInfo, global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Deletes a deviceEnrollmentLimitConfiguration.
+        /// Deletes a deviceEnrollmentWindowsHelloForBusinessConfiguration.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -145,7 +145,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read properties and relationships of the deviceEnrollmentPlatformRestrictionsConfiguration object.
+        /// Read properties and relationships of the deviceEnrollmentLimitConfiguration object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -164,7 +164,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of a deviceEnrollmentPlatformRestrictionsConfiguration object.
+        /// Update the properties of a deviceEnrollmentLimitConfiguration object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -203,7 +203,7 @@ public partial class DeviceEnrollmentConfigurationItemRequestBuilderDeleteReques
         {
         }
         /// <summary>
-        /// Read properties and relationships of the deviceEnrollmentPlatformRestrictionsConfiguration object.
+        /// Read properties and relationships of the deviceEnrollmentLimitConfiguration object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class DeviceEnrollmentConfigurationItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityPostRequestBody.cs
index d884fa4f667..fbab6306c82 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityPostRequestBody.cs
@@ -42,7 +42,7 @@ public SetPriorityPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.SetPriority.SetPriorityPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.SetPriority.SetPriorityPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("priority", Priority);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityRequestBuilder.cs
index dbf483f3df2..52f649a1cfe 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceEnrollmentConfigurations/Item/SetPriority/SetPriorityRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceEnrol
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.SetPriority.SetPriorityPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.DeviceEnrollmentConfigurations.Item.SetPriority.SetPriorityPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/DeviceManagementPartnersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/DeviceManagementPartnersRequestBuilder.cs
index a207393ef24..915cb08f2d2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/DeviceManagementPartnersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/DeviceManagementPartnersRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceManagementPartnersRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.DeviceManagementPartner> PostAsync(global::Microsoft.Graph.Models.DeviceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/Item/DeviceManagementPartnerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/Item/DeviceManagementPartnerItemRequestBuilder.cs
index fdd47d3271c..37d3dd4f581 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/Item/DeviceManagementPartnerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementPartners/Item/DeviceManagementPartnerItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceManagementPartner> PatchAsync(global::Microsoft.Graph.Models.DeviceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementRequestBuilder.cs
index 75c42b90afd..4644f02f6a1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/DeviceManagementRequestBuilder.cs
@@ -392,7 +392,7 @@ public DeviceManagementRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         }
         /// <summary>
         /// Read properties and relationships of the deviceManagement object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-devicemanagement-get?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-wip-devicemanagement-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceManagement"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -426,7 +426,7 @@ public DeviceManagementRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         }
         /// <summary>
         /// Update the properties of a deviceManagement object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-androidforwork-devicemanagement-update?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-tem-devicemanagement-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.DeviceManagement"/></returns>
         /// <param name="body">The request body</param>
@@ -442,7 +442,7 @@ public DeviceManagementRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.DeviceManagement> PatchAsync(global::Microsoft.Graph.Models.DeviceManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -484,7 +484,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/ExchangeConnectorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/ExchangeConnectorsRequestBuilder.cs
index 5a5d9cb1e14..338d2ac74f9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/ExchangeConnectorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/ExchangeConnectorsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ExchangeConnectorsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.DeviceManagementExchangeConnector> PostAsync(global::Microsoft.Graph.Models.DeviceManagementExchangeConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceManagementExchangeConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/DeviceManagementExchangeConnectorItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/DeviceManagementExchangeConnectorItemRequestBuilder.cs
index 948957e5fc9..2b709903eb6 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/DeviceManagementExchangeConnectorItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/DeviceManagementExchangeConnectorItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceManagementExchangeConnector> PatchAsync(global::Microsoft.Graph.Models.DeviceManagementExchangeConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagementExchangeConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncPostRequestBody.cs
index 1ed0f6b128d..81e44362e15 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncPostRequestBody.cs
@@ -43,7 +43,7 @@ public SyncPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ExchangeConnectors.Item.Sync.SyncPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ExchangeConnectors.Item.Sync.SyncPostRequestBody();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DeviceManagementExchangeConnectorSyncType>("syncType", SyncType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncRequestBuilder.cs
index 84c1f83e294..9a50d6a682e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ExchangeConnectors/Item/Sync/SyncRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ExchangeCon
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ExchangeConnectors.Item.Sync.SyncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.ExchangeConnectors.Item.Sync.SyncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeGetResponse.cs
index c75bfd76903..ce530e46005 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetEffectivePermissionsWithScopeGetResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.GetEffectivePermissionsWithScope.GetEffectivePermissionsWithScopeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.GetEffectivePermissionsWithScope.GetEffectivePermissionsWithScopeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RolePermission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeResponse.cs
index 4a3a7e80de4..9682abe5cc5 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/GetEffectivePermissionsWithScope/GetEffectivePermissionsWithScopeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetEffectivePermissionsWithScopeResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.GetEffectivePermissionsWithScope.GetEffectivePermissionsWithScopeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.GetEffectivePermissionsWithScope.GetEffectivePermissionsWithScopeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostRequestBody.cs
index 8fe07d1a29c..fd9e3922c86 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostRequestBody.cs
@@ -53,7 +53,7 @@ public ImportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity>("importedWindowsAutopilotDeviceIdentities", ImportedWindowsAutopilotDeviceIdentities);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostResponse.cs
index b58584a8e26..eb5fab2d76f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportPostResponse.cs
@@ -36,7 +36,7 @@ public partial class ImportPostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportRequestBuilder.cs
index 70f82df5158..0b633e2ad97 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImportRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostResponse> PostAsImportPostResponseAsync(global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public ImportRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportResponse> PostAsync(global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportResponse.cs
index 939d2e47491..b3f03386c3b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Import/ImportResponse.cs
@@ -20,7 +20,7 @@ public partial class ImportResponse : global::Microsoft.Graph.DeviceManagement.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ImportedWindowsAutopilotDeviceIdentities.Import.ImportResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/ImportedWindowsAutopilotDeviceIdentitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/ImportedWindowsAutopilotDeviceIdentitiesRequestBuilder.cs
index cf232836a45..fd8d6e354e0 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/ImportedWindowsAutopilotDeviceIdentitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/ImportedWindowsAutopilotDeviceIdentitiesRequestBuilder.cs
@@ -101,7 +101,7 @@ public ImportedWindowsAutopilotDeviceIdentitiesRequestBuilder(string rawUrl, IRe
         public async Task<global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity> PostAsync(global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Item/ImportedWindowsAutopilotDeviceIdentityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Item/ImportedWindowsAutopilotDeviceIdentityItemRequestBuilder.cs
index 7c7ca2ad296..d35e1621dea 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Item/ImportedWindowsAutopilotDeviceIdentityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ImportedWindowsAutopilotDeviceIdentities/Item/ImportedWindowsAutopilotDeviceIdentityItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity> PatchAsync(global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/IosUpdateStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/IosUpdateStatusesRequestBuilder.cs
index 19757d8e09b..a033d6b72f0 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/IosUpdateStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/IosUpdateStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public IosUpdateStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.IosUpdateDeviceStatus> PostAsync(global::Microsoft.Graph.Models.IosUpdateDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IosUpdateDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/Item/IosUpdateDeviceStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/Item/IosUpdateDeviceStatusItemRequestBuilder.cs
index dda46cd53f1..611a7f4d509 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/Item/IosUpdateDeviceStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/IosUpdateStatuses/Item/IosUpdateDeviceStatusItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IosUpdateDeviceStatus> PatchAsync(global::Microsoft.Graph.Models.IosUpdateDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IosUpdateDeviceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
index 7e2aad82dd9..26f4bc62b5e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
@@ -42,7 +42,7 @@ public CleanWindowsDevicePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("keepUserData", KeepUserData);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
index c9026304286..62a61024a9f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevi
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
index abbb429b988..c23aa9ac566 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeleteUserFromSharedAppleDevicePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
index 8c522b29392..7ac68774e79 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevi
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
index 8f2d62c5870..c13119c53d3 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCategory> PatchAsync(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
index 7f321c9deb8..333fdd303ea 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
index 1c3f96e43b5..825fb92b340 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceCompliancePolicyStatesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyState> PostAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
index a3c969e4b62..6dc1e732fed 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyState> PatchAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
index 1ad5dbd65ed..18f5cfb7545 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceConfigurationStatesRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationState> PostAsync(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
index 77bae53cba2..bab6014bd33 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationState> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
index 149f16fe825..2cd9e9944a1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
@@ -52,7 +52,7 @@ public CreateDownloadUrlPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlPostResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
index 67a409a3cb9..315ff85243e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
@@ -20,7 +20,7 @@ public partial class CreateDownloadUrlResponse : global::Microsoft.Graph.DeviceM
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
index 8950ee62747..6ed0de8cb87 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceLogCollectionResponse> PatchAsync(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
index 458ae9afb69..8e08e924378 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public LogCollectionRequestsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.DeviceLogCollectionResponse> PostAsync(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
index 34e1790b7d4..e1959ac227b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
@@ -241,7 +241,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDevice> PatchAsync(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -302,7 +302,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
index 9c079009098..66c8d34a303 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
@@ -53,7 +53,7 @@ public UpdateWindowsDeviceAccountPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UpdateWindowsDeviceAccountActionParameter>("updateWindowsDeviceAccountActionParameter", UpdateWindowsDeviceAccountActionParameter);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
index 0f45201acd1..5a62554043b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevi
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
index 1fd1740914b..41430424240 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
@@ -42,7 +42,7 @@ public WindowsDefenderScanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("quickScan", QuickScan);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
index 2a9be53b848..e18dfbf76a7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevi
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
index 04d8d7ebd1d..36bcff697c9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
@@ -93,7 +93,7 @@ public DetectedMalwareStateRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.WindowsDeviceMalwareState> PostAsync(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
index f846969c1ba..af38a8dee2a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsDeviceMalwareState> PatchAsync(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
index 8d5ebe597dd..cf53dafcb6b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsProtectionState> PatchAsync(global::Microsoft.Graph.Models.WindowsProtectionState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsProtectionState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipePostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
index ac26bc3d0ac..ae172fe5a6c 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
@@ -70,7 +70,7 @@ public WipePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.Wipe.WipePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.Wipe.WipePostRequestBody();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("keepEnrollmentData", KeepEnrollmentData);
             writer.WriteBoolValue("keepUserData", KeepUserData);
             writer.WriteStringValue("macOsUnlockCode", MacOsUnlockCode);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
index 9df9e53610b..e92edc7af9b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevi
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.Wipe.WipePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.ManagedDevices.Item.Wipe.WipePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/ManagedDevicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/ManagedDevicesRequestBuilder.cs
index f62b8b79b16..6c168205406 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/ManagedDevicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ManagedDevices/ManagedDevicesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ManagedDevicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ManagedDevice> PostAsync(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/AppLogCollectionRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/AppLogCollectionRequestsRequestBuilder.cs
index c5d1cb8d284..c48235a3426 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/AppLogCollectionRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/AppLogCollectionRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppLogCollectionRequestsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.AppLogCollectionRequest> PostAsync(global::Microsoft.Graph.Models.AppLogCollectionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppLogCollectionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/Item/AppLogCollectionRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/Item/AppLogCollectionRequestItemRequestBuilder.cs
index ba8be1b3baf..57bdeea715d 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/Item/AppLogCollectionRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/AppLogCollectionRequests/Item/AppLogCollectionRequestItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppLogCollectionRequest> PatchAsync(global::Microsoft.Graph.Models.AppLogCollectionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppLogCollectionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/MobileAppTroubleshootingEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/MobileAppTroubleshootingEventItemRequestBuilder.cs
index 0f1cf688759..42528075666 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/MobileAppTroubleshootingEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/Item/MobileAppTroubleshootingEventItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent> PatchAsync(global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/MobileAppTroubleshootingEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/MobileAppTroubleshootingEventsRequestBuilder.cs
index 0e8b2c33b2f..1c0662e1af3 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/MobileAppTroubleshootingEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/MobileAppTroubleshootingEvents/MobileAppTroubleshootingEventsRequestBuilder.cs
@@ -95,7 +95,7 @@ public MobileAppTroubleshootingEventsRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent> PostAsync(global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/Item/MobileThreatDefenseConnectorItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/Item/MobileThreatDefenseConnectorItemRequestBuilder.cs
index 97b64747665..5ba19aca726 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/Item/MobileThreatDefenseConnectorItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/Item/MobileThreatDefenseConnectorItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MobileThreatDefenseConnector> PatchAsync(global::Microsoft.Graph.Models.MobileThreatDefenseConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MobileThreatDefenseConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/MobileThreatDefenseConnectorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/MobileThreatDefenseConnectorsRequestBuilder.cs
index 70485292ce7..9c044aa1d38 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/MobileThreatDefenseConnectorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/MobileThreatDefenseConnectors/MobileThreatDefenseConnectorsRequestBuilder.cs
@@ -95,7 +95,7 @@ public MobileThreatDefenseConnectorsRequestBuilder(string rawUrl, IRequestAdapte
         public async Task<global::Microsoft.Graph.Models.MobileThreatDefenseConnector> PostAsync(global::Microsoft.Graph.Models.MobileThreatDefenseConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MobileThreatDefenseConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/Item/LocalizedNotificationMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/Item/LocalizedNotificationMessageItemRequestBuilder.cs
index e2f0ea5eb0c..14a2eab3f2d 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/Item/LocalizedNotificationMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/Item/LocalizedNotificationMessageItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LocalizedNotificationMessage> PatchAsync(global::Microsoft.Graph.Models.LocalizedNotificationMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LocalizedNotificationMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/LocalizedNotificationMessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/LocalizedNotificationMessagesRequestBuilder.cs
index 6419911be7d..9511bc041d5 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/LocalizedNotificationMessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/LocalizedNotificationMessages/LocalizedNotificationMessagesRequestBuilder.cs
@@ -95,7 +95,7 @@ public LocalizedNotificationMessagesRequestBuilder(string rawUrl, IRequestAdapte
         public async Task<global::Microsoft.Graph.Models.LocalizedNotificationMessage> PostAsync(global::Microsoft.Graph.Models.LocalizedNotificationMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LocalizedNotificationMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/NotificationMessageTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/NotificationMessageTemplateItemRequestBuilder.cs
index 64ad90fdabb..0f1fc9b2977 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/NotificationMessageTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/Item/NotificationMessageTemplateItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.NotificationMessageTemplate> PatchAsync(global::Microsoft.Graph.Models.NotificationMessageTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.NotificationMessageTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/NotificationMessageTemplatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/NotificationMessageTemplatesRequestBuilder.cs
index 47cae7e50a8..15c28229219 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/NotificationMessageTemplatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/NotificationMessageTemplates/NotificationMessageTemplatesRequestBuilder.cs
@@ -95,7 +95,7 @@ public NotificationMessageTemplatesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.NotificationMessageTemplate> PostAsync(global::Microsoft.Graph.Models.NotificationMessageTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.NotificationMessageTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/Item/RemoteAssistancePartnerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/Item/RemoteAssistancePartnerItemRequestBuilder.cs
index f4021926c98..c3e5aa03cc5 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/Item/RemoteAssistancePartnerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/Item/RemoteAssistancePartnerItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RemoteAssistancePartner> PatchAsync(global::Microsoft.Graph.Models.RemoteAssistancePartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RemoteAssistancePartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/RemoteAssistancePartnersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/RemoteAssistancePartnersRequestBuilder.cs
index 7e1389d75a9..a1ceb08e8ca 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/RemoteAssistancePartnersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RemoteAssistancePartners/RemoteAssistancePartnersRequestBuilder.cs
@@ -95,7 +95,7 @@ public RemoteAssistancePartnersRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.RemoteAssistancePartner> PostAsync(global::Microsoft.Graph.Models.RemoteAssistancePartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RemoteAssistancePartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/ExportJobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/ExportJobsRequestBuilder.cs
index 49f1c9b3f2d..d5c675c7983 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/ExportJobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/ExportJobsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ExportJobsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.DeviceManagementExportJob> PostAsync(global::Microsoft.Graph.Models.DeviceManagementExportJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceManagementExportJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/Item/DeviceManagementExportJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/Item/DeviceManagementExportJobItemRequestBuilder.cs
index c3a969a4044..8a641272048 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/Item/DeviceManagementExportJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ExportJobs/Item/DeviceManagementExportJobItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceManagementExportJob> PatchAsync(global::Microsoft.Graph.Models.DeviceManagementExportJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagementExportJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportPostRequestBody.cs
index b471c96dd40..5265307ea03 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportPostRequestBody.cs
@@ -128,7 +128,7 @@ public GetCachedReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetCachedReport.GetCachedReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetCachedReport.GetCachedReportPostRequestBody();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("id", Id);
             writer.WriteCollectionOfPrimitiveValues<string>("orderBy", OrderBy);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportRequestBuilder.cs
index 36b18f1a1b6..ea644e871a7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCachedReport/GetCachedReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetCachedReportRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetCachedReport.GetCachedReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetCachedReport.GetCachedReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportPostRequestBody.cs
index 9ff863d3e2f..3414959e106 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetCompliancePolicyNonComplianceReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceReport.GetCompliancePolicyNonComplianceReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceReport.GetCompliancePolicyNonComplianceReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportRequestBuilder.cs
index b80c057d595..79e9b60d0ae 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceReport/GetCompliancePolicyNonComplianceReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetCompliancePolicyNonComplianceReportRequestBuilder(string rawUrl, IRequ
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceReport.GetCompliancePolicyNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceReport.GetCompliancePolicyNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportPostRequestBody.cs
index f93836182ca..54cdd6a285a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetCompliancePolicyNonComplianceSummaryReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceSummaryReport.GetCompliancePolicyNonComplianceSummaryReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceSummaryReport.GetCompliancePolicyNonComplianceSummaryReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportRequestBuilder.cs
index 8164140be80..ff78553a059 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetCompliancePolicyNonComplianceSummaryReport/GetCompliancePolicyNonComplianceSummaryReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetCompliancePolicyNonComplianceSummaryReportRequestBuilder(string rawUrl
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceSummaryReport.GetCompliancePolicyNonComplianceSummaryReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetCompliancePolicyNonComplianceSummaryReport.GetCompliancePolicyNonComplianceSummaryReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportPostRequestBody.cs
index 499b48dabbf..ec6333c65e1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetComplianceSettingNonComplianceReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetComplianceSettingNonComplianceReport.GetComplianceSettingNonComplianceReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetComplianceSettingNonComplianceReport.GetComplianceSettingNonComplianceReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportRequestBuilder.cs
index 826cb7dd596..7e28c9ec131 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetComplianceSettingNonComplianceReport/GetComplianceSettingNonComplianceReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetComplianceSettingNonComplianceReportRequestBuilder(string rawUrl, IReq
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetComplianceSettingNonComplianceReport.GetComplianceSettingNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetComplianceSettingNonComplianceReport.GetComplianceSettingNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportPostRequestBody.cs
index 9eb984c45fb..9c83f45f1ea 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetConfigurationPolicyNonComplianceReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceReport.GetConfigurationPolicyNonComplianceReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceReport.GetConfigurationPolicyNonComplianceReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportRequestBuilder.cs
index 7f7f562ac88..3868de83ffe 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceReport/GetConfigurationPolicyNonComplianceReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetConfigurationPolicyNonComplianceReportRequestBuilder(string rawUrl, IR
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceReport.GetConfigurationPolicyNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceReport.GetConfigurationPolicyNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody.cs
index fef9040be10..1c3973875a2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceSummaryReport.GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceSummaryReport.GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportRequestBuilder.cs
index a8aec9733ed..92ab77759ef 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationPolicyNonComplianceSummaryReport/GetConfigurationPolicyNonComplianceSummaryReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetConfigurationPolicyNonComplianceSummaryReportRequestBuilder(string raw
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceSummaryReport.GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationPolicyNonComplianceSummaryReport.GetConfigurationPolicyNonComplianceSummaryReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportPostRequestBody.cs
index f9c5e911f95..e6648a16ea7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetConfigurationSettingNonComplianceReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationSettingNonComplianceReport.GetConfigurationSettingNonComplianceReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationSettingNonComplianceReport.GetConfigurationSettingNonComplianceReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportRequestBuilder.cs
index a6c9ccc9a37..1b1cb7387aa 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetConfigurationSettingNonComplianceReport/GetConfigurationSettingNonComplianceReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetConfigurationSettingNonComplianceReportRequestBuilder(string rawUrl, I
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationSettingNonComplianceReport.GetConfigurationSettingNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetConfigurationSettingNonComplianceReport.GetConfigurationSettingNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody.cs
index 652b60252d6..2194cabc147 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentPerSettingContributingProfiles.GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentPerSettingContributingProfiles.GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesRequestBuilder.cs
index 27dad7beb66..61d550660fd 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentPerSettingContributingProfiles/GetDeviceManagementIntentPerSettingContributingProfilesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetDeviceManagementIntentPerSettingContributingProfilesRequestBuilder(str
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentPerSettingContributingProfiles.GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentPerSettingContributingProfiles.GetDeviceManagementIntentPerSettingContributingProfilesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportPostRequestBody.cs
index f0f5d190d76..df37319dcd1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetDeviceManagementIntentSettingsReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentSettingsReport.GetDeviceManagementIntentSettingsReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentSettingsReport.GetDeviceManagementIntentSettingsReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportRequestBuilder.cs
index 07bb53f8f69..5e74fef1023 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceManagementIntentSettingsReport/GetDeviceManagementIntentSettingsReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetDeviceManagementIntentSettingsReportRequestBuilder(string rawUrl, IReq
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentSettingsReport.GetDeviceManagementIntentSettingsReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceManagementIntentSettingsReport.GetDeviceManagementIntentSettingsReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportPostRequestBody.cs
index 7d426255dc5..245cbdc32b2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetDeviceNonComplianceReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceNonComplianceReport.GetDeviceNonComplianceReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceNonComplianceReport.GetDeviceNonComplianceReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportRequestBuilder.cs
index bb0920e16d1..02355c2462b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDeviceNonComplianceReport/GetDeviceNonComplianceReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetDeviceNonComplianceReportRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceNonComplianceReport.GetDeviceNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetDeviceNonComplianceReport.GetDeviceNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportPostRequestBody.cs
index 0436c2f8b4c..7f4a87f3c27 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetDevicesWithoutCompliancePolicyReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetDevicesWithoutCompliancePolicyReport.GetDevicesWithoutCompliancePolicyReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetDevicesWithoutCompliancePolicyReport.GetDevicesWithoutCompliancePolicyReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportRequestBuilder.cs
index 80779b4c94d..23039a61c85 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetDevicesWithoutCompliancePolicyReport/GetDevicesWithoutCompliancePolicyReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetDevicesWithoutCompliancePolicyReportRequestBuilder(string rawUrl, IReq
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetDevicesWithoutCompliancePolicyReport.GetDevicesWithoutCompliancePolicyReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetDevicesWithoutCompliancePolicyReport.GetDevicesWithoutCompliancePolicyReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportPostRequestBody.cs
index c601cd6d0b8..d856c9fcd39 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportPostRequestBody.cs
@@ -144,7 +144,7 @@ public GetHistoricalReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetHistoricalReport.GetHistoricalReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetHistoricalReport.GetHistoricalReportPostRequestBody();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportRequestBuilder.cs
index e5e764a8b4e..f25ed09c3b3 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetHistoricalReport/GetHistoricalReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetHistoricalReportRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetHistoricalReport.GetHistoricalReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetHistoricalReport.GetHistoricalReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportPostRequestBody.cs
index c9bf08a53b9..4e07d13bf08 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetNoncompliantDevicesAndSettingsReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetNoncompliantDevicesAndSettingsReport.GetNoncompliantDevicesAndSettingsReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetNoncompliantDevicesAndSettingsReport.GetNoncompliantDevicesAndSettingsReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportRequestBuilder.cs
index 0da845823b2..58b8983fd1a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetNoncompliantDevicesAndSettingsReport/GetNoncompliantDevicesAndSettingsReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetNoncompliantDevicesAndSettingsReportRequestBuilder(string rawUrl, IReq
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetNoncompliantDevicesAndSettingsReport.GetNoncompliantDevicesAndSettingsReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetNoncompliantDevicesAndSettingsReport.GetNoncompliantDevicesAndSettingsReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataPostRequestBody.cs
index c5c9546f3bb..2b7f791b3a1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetPolicyNonComplianceMetadataPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceMetadata.GetPolicyNonComplianceMetadataPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceMetadata.GetPolicyNonComplianceMetadataPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataRequestBuilder.cs
index 6f2f3202005..f01bdfe6e46 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceMetadata/GetPolicyNonComplianceMetadataRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetPolicyNonComplianceMetadataRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceMetadata.GetPolicyNonComplianceMetadataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceMetadata.GetPolicyNonComplianceMetadataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportPostRequestBody.cs
index f668ee666a2..2ced782a24a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetPolicyNonComplianceReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceReport.GetPolicyNonComplianceReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceReport.GetPolicyNonComplianceReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportRequestBuilder.cs
index bc632a60654..ced3e941219 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceReport/GetPolicyNonComplianceReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetPolicyNonComplianceReportRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceReport.GetPolicyNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceReport.GetPolicyNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportPostRequestBody.cs
index 6772542b349..1fde94b2378 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetPolicyNonComplianceSummaryReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceSummaryReport.GetPolicyNonComplianceSummaryReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceSummaryReport.GetPolicyNonComplianceSummaryReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportRequestBuilder.cs
index 9cfec4abff0..556074648b1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetPolicyNonComplianceSummaryReport/GetPolicyNonComplianceSummaryReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetPolicyNonComplianceSummaryReportRequestBuilder(string rawUrl, IRequest
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceSummaryReport.GetPolicyNonComplianceSummaryReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetPolicyNonComplianceSummaryReport.GetPolicyNonComplianceSummaryReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersPostRequestBody.cs
index caff3ef1ef7..3636a5d7db4 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetReportFiltersPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetReportFilters.GetReportFiltersPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetReportFilters.GetReportFiltersPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersRequestBuilder.cs
index 93c30d48079..3620c1a12ae 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetReportFilters/GetReportFiltersRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetReportFiltersRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetReportFilters.GetReportFiltersPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetReportFilters.GetReportFiltersPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportPostRequestBody.cs
index 0e288a4fef4..1d2122ec2cc 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public GetSettingNonComplianceReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.GetSettingNonComplianceReport.GetSettingNonComplianceReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.GetSettingNonComplianceReport.GetSettingNonComplianceReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportRequestBuilder.cs
index ce301cb1a5c..a10b09b7d68 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/GetSettingNonComplianceReport/GetSettingNonComplianceReportRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetSettingNonComplianceReportRequestBuilder(string rawUrl, IRequestAdapte
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.GetSettingNonComplianceReport.GetSettingNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.GetSettingNonComplianceReport.GetSettingNonComplianceReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ReportsRequestBuilder.cs
index a4ce65329f1..8a7b3b2c59e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/ReportsRequestBuilder.cs
@@ -218,7 +218,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceManagementReports> PatchAsync(global::Microsoft.Graph.Models.DeviceManagementReports body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -279,7 +279,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagementReports body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportPostRequestBody.cs
index a2e44008911..9ce56c631df 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportPostRequestBody.cs
@@ -160,7 +160,7 @@ public RetrieveDeviceAppInstallationStatusReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.Reports.RetrieveDeviceAppInstallationStatusReport.RetrieveDeviceAppInstallationStatusReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.Reports.RetrieveDeviceAppInstallationStatusReport.RetrieveDeviceAppInstallationStatusReportPostRequestBody();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("filter", Filter);
             writer.WriteCollectionOfPrimitiveValues<string>("groupBy", GroupBy);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportRequestBuilder.cs
index 3d5be6712a8..75bead81136 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/Reports/RetrieveDeviceAppInstallationStatusReport/RetrieveDeviceAppInstallationStatusReportRequestBuilder.cs
@@ -50,7 +50,7 @@ public RetrieveDeviceAppInstallationStatusReportRequestBuilder(string rawUrl, IR
         public async Task<Stream> PostAsync(global::Microsoft.Graph.DeviceManagement.Reports.RetrieveDeviceAppInstallationStatusReport.RetrieveDeviceAppInstallationStatusReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.Reports.RetrieveDeviceAppInstallationStatusReport.RetrieveDeviceAppInstallationStatusReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/octet-stream, application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/Item/ResourceOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/Item/ResourceOperationItemRequestBuilder.cs
index ca55eed62ac..8b19bb6a2c4 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/Item/ResourceOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/Item/ResourceOperationItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceOperation> PatchAsync(global::Microsoft.Graph.Models.ResourceOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/ResourceOperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/ResourceOperationsRequestBuilder.cs
index f1984309c74..6f11afaa104 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/ResourceOperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/ResourceOperations/ResourceOperationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ResourceOperationsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.ResourceOperation> PostAsync(global::Microsoft.Graph.Models.ResourceOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/Item/DeviceAndAppManagementRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/Item/DeviceAndAppManagementRoleAssignmentItemRequestBuilder.cs
index 2a2da4ef138..edb69f33430 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/Item/DeviceAndAppManagementRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/Item/DeviceAndAppManagementRoleAssignmentItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs
index f2fbde13ac2..d54f48abc93 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment> PostAsync(global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/Item/RoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/Item/RoleAssignmentItemRequestBuilder.cs
index e0531e7283b..c2d046a2b19 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/Item/RoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/Item/RoleAssignmentItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RoleAssignment> PatchAsync(global::Microsoft.Graph.Models.RoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/RoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/RoleAssignmentsRequestBuilder.cs
index 11fda56f530..ec780bac5ea 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/RoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleAssignments/RoleAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.RoleAssignment> PostAsync(global::Microsoft.Graph.Models.RoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleDefinitionItemRequestBuilder.cs
index 51097566aef..048c13c0a6a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/Item/RoleDefinitionItemRequestBuilder.cs
@@ -41,8 +41,8 @@ public RoleDefinitionItemRequestBuilder(string rawUrl, IRequestAdapter requestAd
         {
         }
         /// <summary>
-        /// Deletes a roleDefinition.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-rbac-roledefinition-delete?view=graph-rest-1.0" />
+        /// Deletes a deviceAndAppManagementRoleDefinition.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-rbac-deviceandappmanagementroledefinition-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RoleDefinition> PatchAsync(global::Microsoft.Graph.Models.RoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.RoleDefinition>(requestInfo, global::Microsoft.Graph.Models.RoleDefinition.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Deletes a roleDefinition.
+        /// Deletes a deviceAndAppManagementRoleDefinition.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
index a47738fe548..4a350075b71 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
@@ -54,8 +54,8 @@ public RoleDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         {
         }
         /// <summary>
-        /// List properties and relationships of the roleDefinition objects.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-rbac-roledefinition-list?view=graph-rest-1.0" />
+        /// List properties and relationships of the deviceAndAppManagementRoleDefinition objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-rbac-deviceandappmanagementroledefinition-list?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.RoleDefinitionCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -78,8 +78,8 @@ public RoleDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.RoleDefinitionCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.RoleDefinitionCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new deviceAndAppManagementRoleDefinition object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-rbac-deviceandappmanagementroledefinition-create?view=graph-rest-1.0" />
+        /// Create a new roleDefinition object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-rbac-roledefinition-create?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.RoleDefinition"/></returns>
         /// <param name="body">The request body</param>
@@ -95,7 +95,7 @@ public RoleDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.RoleDefinition> PostAsync(global::Microsoft.Graph.Models.RoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -104,7 +104,7 @@ public RoleDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.RoleDefinition>(requestInfo, global::Microsoft.Graph.Models.RoleDefinition.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List properties and relationships of the roleDefinition objects.
+        /// List properties and relationships of the deviceAndAppManagementRoleDefinition objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -123,7 +123,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a new deviceAndAppManagementRoleDefinition object.
+        /// Create a new roleDefinition object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.DeviceManagement.RoleDefinitions.RoleDefinitionsRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List properties and relationships of the roleDefinition objects.
+        /// List properties and relationships of the deviceAndAppManagementRoleDefinition objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class RoleDefinitionsRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/Item/TelecomExpenseManagementPartnerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/Item/TelecomExpenseManagementPartnerItemRequestBuilder.cs
index ab9a1b6f967..80e6b9c3170 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/Item/TelecomExpenseManagementPartnerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/Item/TelecomExpenseManagementPartnerItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TelecomExpenseManagementPartner> PatchAsync(global::Microsoft.Graph.Models.TelecomExpenseManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TelecomExpenseManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/TelecomExpenseManagementPartnersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/TelecomExpenseManagementPartnersRequestBuilder.cs
index fe9737959f7..d13b0306782 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/TelecomExpenseManagementPartnersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TelecomExpenseManagementPartners/TelecomExpenseManagementPartnersRequestBuilder.cs
@@ -95,7 +95,7 @@ public TelecomExpenseManagementPartnersRequestBuilder(string rawUrl, IRequestAda
         public async Task<global::Microsoft.Graph.Models.TelecomExpenseManagementPartner> PostAsync(global::Microsoft.Graph.Models.TelecomExpenseManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TelecomExpenseManagementPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/AcceptanceStatusesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/AcceptanceStatusesRequestBuilder.cs
index 8f5ec636c3c..aa25c668088 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/AcceptanceStatusesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/AcceptanceStatusesRequestBuilder.cs
@@ -95,7 +95,7 @@ public AcceptanceStatusesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus> PostAsync(global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/Item/TermsAndConditionsAcceptanceStatusItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/Item/TermsAndConditionsAcceptanceStatusItemRequestBuilder.cs
index ccc1a9542bf..a58b5bfd205 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/Item/TermsAndConditionsAcceptanceStatusItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/AcceptanceStatuses/Item/TermsAndConditionsAcceptanceStatusItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus> PatchAsync(global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/AssignmentsRequestBuilder.cs
index fa753796e59..97eb3420b75 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.TermsAndConditionsAssignment> PostAsync(global::Microsoft.Graph.Models.TermsAndConditionsAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermsAndConditionsAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/Item/TermsAndConditionsAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/Item/TermsAndConditionsAssignmentItemRequestBuilder.cs
index a9597d70af5..66bc33ac9e7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/Item/TermsAndConditionsAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/Assignments/Item/TermsAndConditionsAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermsAndConditionsAssignment> PatchAsync(global::Microsoft.Graph.Models.TermsAndConditionsAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermsAndConditionsAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/TermsAndConditionsItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/TermsAndConditionsItemRequestBuilder.cs
index ce52d6b66c2..5d24ce9f777 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/TermsAndConditionsItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/Item/TermsAndConditionsItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermsAndConditions> PatchAsync(global::Microsoft.Graph.Models.TermsAndConditions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermsAndConditions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/TermsAndConditionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/TermsAndConditionsRequestBuilder.cs
index 892420dc2ed..19869b683a1 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/TermsAndConditionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TermsAndConditions/TermsAndConditionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TermsAndConditionsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.TermsAndConditions> PostAsync(global::Microsoft.Graph.Models.TermsAndConditions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermsAndConditions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
index 666247721c4..ca6722d1c13 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent> PatchAsync(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/TroubleshootingEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/TroubleshootingEventsRequestBuilder.cs
index 031b74563af..98546f6cf4f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/TroubleshootingEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/TroubleshootingEvents/TroubleshootingEventsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TroubleshootingEventsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent> PostAsync(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/Item/UserExperienceAnalyticsAppHealthApplicationPerformanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/Item/UserExperienceAnalyticsAppHealthApplicationPerformanceItemRequestBuilder.cs
index d1314e24f6c..b1063ca855a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/Item/UserExperienceAnalyticsAppHealthApplicationPerformanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/Item/UserExperienceAnalyticsAppHealthApplicationPerformanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/UserExperienceAnalyticsAppHealthApplicationPerformanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/UserExperienceAnalyticsAppHealthApplicationPerformanceRequestBuilder.cs
index e3712339f58..f1b2467ae82 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/UserExperienceAnalyticsAppHealthApplicationPerformanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformance/UserExperienceAnalyticsAppHealthApplicationPerformanceRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthApplicationPerformanceRequestBuilder(stri
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsItemRequestBuilder.cs
index e969938bdd5..ce995f3ab52 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetailsRequestBuilder.cs
index ea76c47b35e..d2b838fc247 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetailsRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDetails
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdItemRequestBuilder.cs
index 4f1f8b2e4d2..a20bae676ea 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/Item/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceIdRequestBuilder.cs
index ee9ebedd5e9..b6b7ea530fb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceId/UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceIdRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthApplicationPerformanceByAppVersionDeviceI
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/Item/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/Item/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionItemRequestBuilder.cs
index 596fd708332..710a5add52c 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/Item/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/Item/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersionRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersionRequestBuilder.cs
index 72f69badeeb..7c0618e023f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersion/UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersionRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthApplicationPerformanceByOSVersionRequestB
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/Item/UserExperienceAnalyticsAppHealthDeviceModelPerformanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/Item/UserExperienceAnalyticsAppHealthDeviceModelPerformanceItemRequestBuilder.cs
index 48ab95e7050..9fc405bc723 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/Item/UserExperienceAnalyticsAppHealthDeviceModelPerformanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/Item/UserExperienceAnalyticsAppHealthDeviceModelPerformanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/UserExperienceAnalyticsAppHealthDeviceModelPerformanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/UserExperienceAnalyticsAppHealthDeviceModelPerformanceRequestBuilder.cs
index c97b3f4ee3c..3c1ae9f3ec7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/UserExperienceAnalyticsAppHealthDeviceModelPerformanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDeviceModelPerformance/UserExperienceAnalyticsAppHealthDeviceModelPerformanceRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthDeviceModelPerformanceRequestBuilder(stri
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/Item/UserExperienceAnalyticsAppHealthDevicePerformanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/Item/UserExperienceAnalyticsAppHealthDevicePerformanceItemRequestBuilder.cs
index ee1425c0c6c..f6fabbbf78d 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/Item/UserExperienceAnalyticsAppHealthDevicePerformanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/Item/UserExperienceAnalyticsAppHealthDevicePerformanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/UserExperienceAnalyticsAppHealthDevicePerformanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/UserExperienceAnalyticsAppHealthDevicePerformanceRequestBuilder.cs
index 4a1f67bccb2..b10e93846de 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/UserExperienceAnalyticsAppHealthDevicePerformanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformance/UserExperienceAnalyticsAppHealthDevicePerformanceRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthDevicePerformanceRequestBuilder(string ra
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/Item/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/Item/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsItemRequestBuilder.cs
index 8af46660562..044918d74d4 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/Item/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/Item/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsRequestBuilder.cs
index df4695ec93b..ef7b10b02d8 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthDevicePerformanceDetails/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthDevicePerformanceDetailsRequestBuilder(st
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/Item/UserExperienceAnalyticsAppHealthOSVersionPerformanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/Item/UserExperienceAnalyticsAppHealthOSVersionPerformanceItemRequestBuilder.cs
index 31f1f7240d5..0b2557481cb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/Item/UserExperienceAnalyticsAppHealthOSVersionPerformanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/Item/UserExperienceAnalyticsAppHealthOSVersionPerformanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/UserExperienceAnalyticsAppHealthOSVersionPerformanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/UserExperienceAnalyticsAppHealthOSVersionPerformanceRequestBuilder.cs
index 461949be343..099ed435abc 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/UserExperienceAnalyticsAppHealthOSVersionPerformanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOSVersionPerformance/UserExperienceAnalyticsAppHealthOSVersionPerformanceRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsAppHealthOSVersionPerformanceRequestBuilder(string
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs
index ea9a2ea75af..3abc29396da 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/MetricValuesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/MetricValuesRequestBuilder.cs
index 2e8dabf703e..caef5602dd9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/MetricValuesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/MetricValues/MetricValuesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MetricValuesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/UserExperienceAnalyticsAppHealthOverviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/UserExperienceAnalyticsAppHealthOverviewRequestBuilder.cs
index db88e5683d5..078c3c2d1e6 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/UserExperienceAnalyticsAppHealthOverviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsAppHealthOverview/UserExperienceAnalyticsAppHealthOverviewRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/Item/UserExperienceAnalyticsBaselineItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/Item/UserExperienceAnalyticsBaselineItemRequestBuilder.cs
index 447eac44223..d41b1ed20a2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/Item/UserExperienceAnalyticsBaselineItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/Item/UserExperienceAnalyticsBaselineItemRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/UserExperienceAnalyticsBaselinesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/UserExperienceAnalyticsBaselinesRequestBuilder.cs
index 3fef9a38f74..9491ad9d7fb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/UserExperienceAnalyticsBaselinesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsBaselines/UserExperienceAnalyticsBaselinesRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsBaselinesRequestBuilder(string rawUrl, IRequestAda
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs
index 18f446baf77..52dd29a1f23 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/Item/UserExperienceAnalyticsMetricItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/MetricValuesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/MetricValuesRequestBuilder.cs
index 098eb3dea27..ff4214a0667 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/MetricValuesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/MetricValues/MetricValuesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MetricValuesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/UserExperienceAnalyticsCategoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/UserExperienceAnalyticsCategoryItemRequestBuilder.cs
index 873f84daacc..f7c27d86f37 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/UserExperienceAnalyticsCategoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/Item/UserExperienceAnalyticsCategoryItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/UserExperienceAnalyticsCategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/UserExperienceAnalyticsCategoriesRequestBuilder.cs
index 1186fe52386..5e68d87de31 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/UserExperienceAnalyticsCategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsCategories/UserExperienceAnalyticsCategoriesRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsCategoriesRequestBuilder(string rawUrl, IRequestAd
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/Item/UserExperienceAnalyticsDevicePerformanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/Item/UserExperienceAnalyticsDevicePerformanceItemRequestBuilder.cs
index ada01f3a500..c315938df7d 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/Item/UserExperienceAnalyticsDevicePerformanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/Item/UserExperienceAnalyticsDevicePerformanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByGetResponse.cs
index 88ef120fd76..135e521f31a 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SummarizeDevicePerformanceDevicesWithSummarizeByGetResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.UserExperienceAnalyticsDevicePerformance.SummarizeDevicePerformanceDevicesWithSummarizeBy.SummarizeDevicePerformanceDevicesWithSummarizeByGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.UserExperienceAnalyticsDevicePerformance.SummarizeDevicePerformanceDevicesWithSummarizeBy.SummarizeDevicePerformanceDevicesWithSummarizeByGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByResponse.cs
index 42dd477d7f5..45cda1dd50e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/SummarizeDevicePerformanceDevicesWithSummarizeBy/SummarizeDevicePerformanceDevicesWithSummarizeByResponse.cs
@@ -20,7 +20,7 @@ public partial class SummarizeDevicePerformanceDevicesWithSummarizeByResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.UserExperienceAnalyticsDevicePerformance.SummarizeDevicePerformanceDevicesWithSummarizeBy.SummarizeDevicePerformanceDevicesWithSummarizeByResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.UserExperienceAnalyticsDevicePerformance.SummarizeDevicePerformanceDevicesWithSummarizeBy.SummarizeDevicePerformanceDevicesWithSummarizeByResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/UserExperienceAnalyticsDevicePerformanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/UserExperienceAnalyticsDevicePerformanceRequestBuilder.cs
index bb418eeb230..869a760ee56 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/UserExperienceAnalyticsDevicePerformanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDevicePerformance/UserExperienceAnalyticsDevicePerformanceRequestBuilder.cs
@@ -94,7 +94,7 @@ public UserExperienceAnalyticsDevicePerformanceRequestBuilder(string rawUrl, IRe
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/Item/UserExperienceAnalyticsDeviceScoresItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/Item/UserExperienceAnalyticsDeviceScoresItemRequestBuilder.cs
index 5290ad08ac8..626a77f2373 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/Item/UserExperienceAnalyticsDeviceScoresItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/Item/UserExperienceAnalyticsDeviceScoresItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/UserExperienceAnalyticsDeviceScoresRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/UserExperienceAnalyticsDeviceScoresRequestBuilder.cs
index e8e0a95205e..36634776a44 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/UserExperienceAnalyticsDeviceScoresRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceScores/UserExperienceAnalyticsDeviceScoresRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsDeviceScoresRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/Item/UserExperienceAnalyticsDeviceStartupHistoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/Item/UserExperienceAnalyticsDeviceStartupHistoryItemRequestBuilder.cs
index de24a1dc11a..121475e6726 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/Item/UserExperienceAnalyticsDeviceStartupHistoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/Item/UserExperienceAnalyticsDeviceStartupHistoryItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/UserExperienceAnalyticsDeviceStartupHistoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/UserExperienceAnalyticsDeviceStartupHistoryRequestBuilder.cs
index e2211431dba..298f9e425bb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/UserExperienceAnalyticsDeviceStartupHistoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupHistory/UserExperienceAnalyticsDeviceStartupHistoryRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsDeviceStartupHistoryRequestBuilder(string rawUrl,
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/Item/UserExperienceAnalyticsDeviceStartupProcessPerformanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/Item/UserExperienceAnalyticsDeviceStartupProcessPerformanceItemRequestBuilder.cs
index 287461561ae..092342b7e39 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/Item/UserExperienceAnalyticsDeviceStartupProcessPerformanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/Item/UserExperienceAnalyticsDeviceStartupProcessPerformanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/UserExperienceAnalyticsDeviceStartupProcessPerformanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/UserExperienceAnalyticsDeviceStartupProcessPerformanceRequestBuilder.cs
index 5b70da9d1ca..6e2e541dbef 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/UserExperienceAnalyticsDeviceStartupProcessPerformanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcessPerformance/UserExperienceAnalyticsDeviceStartupProcessPerformanceRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsDeviceStartupProcessPerformanceRequestBuilder(stri
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/Item/UserExperienceAnalyticsDeviceStartupProcessItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/Item/UserExperienceAnalyticsDeviceStartupProcessItemRequestBuilder.cs
index bd50e48bd28..23a594886ea 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/Item/UserExperienceAnalyticsDeviceStartupProcessItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/Item/UserExperienceAnalyticsDeviceStartupProcessItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/UserExperienceAnalyticsDeviceStartupProcessesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/UserExperienceAnalyticsDeviceStartupProcessesRequestBuilder.cs
index bb9084c9ff6..bac70fd095b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/UserExperienceAnalyticsDeviceStartupProcessesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsDeviceStartupProcesses/UserExperienceAnalyticsDeviceStartupProcessesRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsDeviceStartupProcessesRequestBuilder(string rawUrl
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/Item/UserExperienceAnalyticsMetricHistoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/Item/UserExperienceAnalyticsMetricHistoryItemRequestBuilder.cs
index 714f3541119..8c4a1ff7b8d 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/Item/UserExperienceAnalyticsMetricHistoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/Item/UserExperienceAnalyticsMetricHistoryItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/UserExperienceAnalyticsMetricHistoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/UserExperienceAnalyticsMetricHistoryRequestBuilder.cs
index 9f587db6b8e..cb2d0d7f3db 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/UserExperienceAnalyticsMetricHistoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsMetricHistory/UserExperienceAnalyticsMetricHistoryRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsMetricHistoryRequestBuilder(string rawUrl, IReques
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/Item/UserExperienceAnalyticsModelScoresItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/Item/UserExperienceAnalyticsModelScoresItemRequestBuilder.cs
index b885743bc6b..28fad13f32e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/Item/UserExperienceAnalyticsModelScoresItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/Item/UserExperienceAnalyticsModelScoresItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/UserExperienceAnalyticsModelScoresRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/UserExperienceAnalyticsModelScoresRequestBuilder.cs
index f1f65ba8919..ae67a9871c6 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/UserExperienceAnalyticsModelScoresRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsModelScores/UserExperienceAnalyticsModelScoresRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsModelScoresRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsOverview/UserExperienceAnalyticsOverviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsOverview/UserExperienceAnalyticsOverviewRequestBuilder.cs
index 47a42f578d8..a127e2729bb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsOverview/UserExperienceAnalyticsOverviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsOverview/UserExperienceAnalyticsOverviewRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsOverview> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsOverview body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/Item/UserExperienceAnalyticsScoreHistoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/Item/UserExperienceAnalyticsScoreHistoryItemRequestBuilder.cs
index 4a912803928..351a4031d02 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/Item/UserExperienceAnalyticsScoreHistoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/Item/UserExperienceAnalyticsScoreHistoryItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/UserExperienceAnalyticsScoreHistoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/UserExperienceAnalyticsScoreHistoryRequestBuilder.cs
index f34612142bd..1c004510991 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/UserExperienceAnalyticsScoreHistoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsScoreHistory/UserExperienceAnalyticsScoreHistoryRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsScoreHistoryRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetricRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetricRequestBuilder.cs
index d69e1cc8356..fbecc212a30 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetricRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetricRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/Item/UserExperienceAnalyticsWorkFromAnywhereDeviceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/Item/UserExperienceAnalyticsWorkFromAnywhereDeviceItemRequestBuilder.cs
index e13cac2c256..dd549a4b5ff 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/Item/UserExperienceAnalyticsWorkFromAnywhereDeviceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/Item/UserExperienceAnalyticsWorkFromAnywhereDeviceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/MetricDevicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/MetricDevicesRequestBuilder.cs
index 45c878df3db..1db79bb96e9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/MetricDevicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/MetricDevices/MetricDevicesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MetricDevicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/UserExperienceAnalyticsWorkFromAnywhereMetricItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/UserExperienceAnalyticsWorkFromAnywhereMetricItemRequestBuilder.cs
index a6dd9bda6a1..a0551352ec8 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/UserExperienceAnalyticsWorkFromAnywhereMetricItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/Item/UserExperienceAnalyticsWorkFromAnywhereMetricItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/UserExperienceAnalyticsWorkFromAnywhereMetricsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/UserExperienceAnalyticsWorkFromAnywhereMetricsRequestBuilder.cs
index 01368dc96de..ccccc50dab0 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/UserExperienceAnalyticsWorkFromAnywhereMetricsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereMetrics/UserExperienceAnalyticsWorkFromAnywhereMetricsRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsWorkFromAnywhereMetricsRequestBuilder(string rawUr
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/Item/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/Item/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceItemRequestBuilder.cs
index 6f90d0b03ce..2b2347db12d 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/Item/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/Item/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance> PatchAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceRequestBuilder.cs
index 185ebc1e8d8..3ee39c70277 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/UserExperienceAnalyticsWorkFromAnywhereModelPerformance/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceRequestBuilder.cs
@@ -93,7 +93,7 @@ public UserExperienceAnalyticsWorkFromAnywhereModelPerformanceRequestBuilder(str
         public async Task<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance> PostAsync(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameGetResponse.cs
index 011009b6e76..50f2314a937 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameGetResponse.cs
@@ -42,7 +42,7 @@ public VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.VerifyWindowsEnrollmentAutoDiscoveryWithDomainName.VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VerifyWindowsEnrollmentAutoDiscoveryWithDomainName.VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameResponse.cs
index b94222ee48d..e5b059a55cb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VerifyWindowsEnrollmentAutoDiscoveryWithDomainName/VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameResponse.cs
@@ -20,7 +20,7 @@ public partial class VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.VerifyWindowsEnrollmentAutoDiscoveryWithDomainName.VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VerifyWindowsEnrollmentAutoDiscoveryWithDomainName.VerifyWindowsEnrollmentAutoDiscoveryWithDomainNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/AuditEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/AuditEventsRequestBuilder.cs
index 19d412d3bb2..c3fcb2590fc 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/AuditEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/AuditEventsRequestBuilder.cs
@@ -100,7 +100,7 @@ public AuditEventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CloudPcAuditEvent> PostAsync(global::Microsoft.Graph.Models.CloudPcAuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcAuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesGetResponse.cs
index f4eb8854ea1..928ed1f799f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.AuditEvents.GetAuditActivityTypes.GetAuditActivityTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.AuditEvents.GetAuditActivityTypes.GetAuditActivityTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesResponse.cs
index 4c91ef01f59..0b8795ac78c 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/GetAuditActivityTypes/GetAuditActivityTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAuditActivityTypesResponse : global::Microsoft.Graph.Dev
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.AuditEvents.GetAuditActivityTypes.GetAuditActivityTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.AuditEvents.GetAuditActivityTypes.GetAuditActivityTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/Item/CloudPcAuditEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/Item/CloudPcAuditEventItemRequestBuilder.cs
index 52966f7630c..6e145f597ad 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/Item/CloudPcAuditEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/AuditEvents/Item/CloudPcAuditEventItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcAuditEvent> PatchAsync(global::Microsoft.Graph.Models.CloudPcAuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcAuditEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/CloudPCsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/CloudPCsRequestBuilder.cs
index 1043f616e4c..9237571cbe5 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/CloudPCsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/CloudPCsRequestBuilder.cs
@@ -94,7 +94,7 @@ public CloudPCsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.CloudPC> PostAsync(global::Microsoft.Graph.Models.CloudPC body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPC body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/CloudPCItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/CloudPCItemRequestBuilder.cs
index eb0480d98be..c7a10fd6aee 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/CloudPCItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/CloudPCItemRequestBuilder.cs
@@ -133,7 +133,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPC> PatchAsync(global::Microsoft.Graph.Models.CloudPC body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -194,7 +194,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPC body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenamePostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenamePostRequestBody.cs
index 8c9c211a809..d4095b517b7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenamePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenamePostRequestBody.cs
@@ -52,7 +52,7 @@ public RenamePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Rename.RenamePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Rename.RenamePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenameRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenameRequestBuilder.cs
index e379dad9210..0b81f36847e 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenameRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Rename/RenameRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndp
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Rename.RenamePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Rename.RenamePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizePostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizePostRequestBody.cs
index edecef0496f..a4341d088f2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizePostRequestBody.cs
@@ -52,7 +52,7 @@ public ResizePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Resize.ResizePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Resize.ResizePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("targetServicePlanId", TargetServicePlanId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizeRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizeRequestBuilder.cs
index 2a69d935874..f7421a3bc61 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Resize/ResizeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndp
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Resize.ResizePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Resize.ResizePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestorePostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestorePostRequestBody.cs
index fdbc2599edc..759096bcbbc 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestorePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestorePostRequestBody.cs
@@ -52,7 +52,7 @@ public RestorePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Restore.RestorePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Restore.RestorePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("cloudPcSnapshotId", CloudPcSnapshotId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestoreRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestoreRequestBuilder.cs
index f934063468e..e977d9dd993 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestoreRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/CloudPCs/Item/Restore/RestoreRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndp
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Restore.RestorePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.CloudPCs.Item.Restore.RestorePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/DeviceImagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/DeviceImagesRequestBuilder.cs
index 3d7b365ff77..4eabacf1bf9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/DeviceImagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/DeviceImagesRequestBuilder.cs
@@ -101,7 +101,7 @@ public DeviceImagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CloudPcDeviceImage> PostAsync(global::Microsoft.Graph.Models.CloudPcDeviceImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcDeviceImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesGetResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesGetResponse.cs
index d3db415058c..43fd953ee63 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSourceImagesGetResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.DeviceImages.GetSourceImages.GetSourceImagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.DeviceImages.GetSourceImages.GetSourceImagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcSourceDeviceImage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesResponse.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesResponse.cs
index 1744671375b..02053aa4d14 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/GetSourceImages/GetSourceImagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetSourceImagesResponse : global::Microsoft.Graph.DeviceMan
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.DeviceImages.GetSourceImages.GetSourceImagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.DeviceImages.GetSourceImages.GetSourceImagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/Item/CloudPcDeviceImageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/Item/CloudPcDeviceImageItemRequestBuilder.cs
index bc32b4186e8..16bec0a8f07 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/Item/CloudPcDeviceImageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/DeviceImages/Item/CloudPcDeviceImageItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcDeviceImage> PatchAsync(global::Microsoft.Graph.Models.CloudPcDeviceImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcDeviceImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/GalleryImagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/GalleryImagesRequestBuilder.cs
index 0fe54b40111..b997f6b0ca7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/GalleryImagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/GalleryImagesRequestBuilder.cs
@@ -94,7 +94,7 @@ public GalleryImagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.CloudPcGalleryImage> PostAsync(global::Microsoft.Graph.Models.CloudPcGalleryImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcGalleryImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/Item/CloudPcGalleryImageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/Item/CloudPcGalleryImageItemRequestBuilder.cs
index 4bd527b1ae9..2cb255aaba2 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/Item/CloudPcGalleryImageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/GalleryImages/Item/CloudPcGalleryImageItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcGalleryImage> PatchAsync(global::Microsoft.Graph.Models.CloudPcGalleryImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcGalleryImage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/Item/CloudPcOnPremisesConnectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/Item/CloudPcOnPremisesConnectionItemRequestBuilder.cs
index 643b8809247..eb8cbeef251 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/Item/CloudPcOnPremisesConnectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/Item/CloudPcOnPremisesConnectionItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcOnPremisesConnection> PatchAsync(global::Microsoft.Graph.Models.CloudPcOnPremisesConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcOnPremisesConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/OnPremisesConnectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/OnPremisesConnectionsRequestBuilder.cs
index b7f73f145f5..6dc56ff5a38 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/OnPremisesConnectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/OnPremisesConnections/OnPremisesConnectionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public OnPremisesConnectionsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.CloudPcOnPremisesConnection> PostAsync(global::Microsoft.Graph.Models.CloudPcOnPremisesConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcOnPremisesConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignPostRequestBody.cs
index f8ce1aa995b..3137f703825 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.ProvisioningPolicies.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.ProvisioningPolicies.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment>("assignments", Assignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignRequestBuilder.cs
index 86dc444126e..fa8c2ded40b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assign/AssignRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndp
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.ProvisioningPolicies.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.ProvisioningPolicies.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
index 0591a4c0d2d..b0efa7497bb 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment> PostAsync(global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/AssignedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/AssignedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index f2dc5bb071c..ba5e473f269 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/AssignedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/AssignedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/CloudPcProvisioningPolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/CloudPcProvisioningPolicyAssignmentItemRequestBuilder.cs
index ea06f8a9cd2..c1040a07344 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/CloudPcProvisioningPolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/Assignments/Item/CloudPcProvisioningPolicyAssignmentItemRequestBuilder.cs
@@ -113,7 +113,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -174,7 +174,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/CloudPcProvisioningPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/CloudPcProvisioningPolicyItemRequestBuilder.cs
index 30d75becb86..bc5720729be 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/CloudPcProvisioningPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/Item/CloudPcProvisioningPolicyItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcProvisioningPolicy> PatchAsync(global::Microsoft.Graph.Models.CloudPcProvisioningPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcProvisioningPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/ProvisioningPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/ProvisioningPoliciesRequestBuilder.cs
index afe0c212755..593cf75518c 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/ProvisioningPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/ProvisioningPolicies/ProvisioningPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ProvisioningPoliciesRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.CloudPcProvisioningPolicy> PostAsync(global::Microsoft.Graph.Models.CloudPcProvisioningPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcProvisioningPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignPostRequestBody.cs
index aa938336390..a7ad3c87cf4 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignPostRequestBody.cs
@@ -53,7 +53,7 @@ public AssignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.UserSettings.Item.Assign.AssignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.UserSettings.Item.Assign.AssignPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcUserSettingAssignment>("assignments", Assignments);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignRequestBuilder.cs
index 3bbae055278..02638e8b300 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assign/AssignRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndp
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.UserSettings.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.VirtualEndpoint.UserSettings.Item.Assign.AssignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/AssignmentsRequestBuilder.cs
index 06df220ad5b..a3505a9d294 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CloudPcUserSettingAssignment> PostAsync(global::Microsoft.Graph.Models.CloudPcUserSettingAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcUserSettingAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/Item/CloudPcUserSettingAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/Item/CloudPcUserSettingAssignmentItemRequestBuilder.cs
index 3b7a856881d..7afc5b77628 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/Item/CloudPcUserSettingAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/Assignments/Item/CloudPcUserSettingAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcUserSettingAssignment> PatchAsync(global::Microsoft.Graph.Models.CloudPcUserSettingAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcUserSettingAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/CloudPcUserSettingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/CloudPcUserSettingItemRequestBuilder.cs
index 856f24c1350..fe347d0d236 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/CloudPcUserSettingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/Item/CloudPcUserSettingItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudPcUserSetting> PatchAsync(global::Microsoft.Graph.Models.CloudPcUserSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudPcUserSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/UserSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/UserSettingsRequestBuilder.cs
index 3957c3a1e84..1b8648c85e0 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/UserSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/UserSettings/UserSettingsRequestBuilder.cs
@@ -95,7 +95,7 @@ public UserSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CloudPcUserSetting> PostAsync(global::Microsoft.Graph.Models.CloudPcUserSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudPcUserSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/VirtualEndpointRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/VirtualEndpointRequestBuilder.cs
index 985fda5e4f5..90f17d4f27f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/VirtualEndpointRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/VirtualEndpoint/VirtualEndpointRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEndpoint> PatchAsync(global::Microsoft.Graph.Models.VirtualEndpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEndpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDevicePostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDevicePostRequestBody.cs
index ca2c7a6c0fe..8fd05f08e97 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDevicePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDevicePostRequestBody.cs
@@ -68,7 +68,7 @@ public AssignUserToDevicePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.AssignUserToDevice.AssignUserToDevicePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.AssignUserToDevice.AssignUserToDevicePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("addressableUserName", AddressableUserName);
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDeviceRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDeviceRequestBuilder.cs
index a4d592245a4..3c49e3f7220 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDeviceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/AssignUserToDevice/AssignUserToDeviceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.WindowsAuto
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.AssignUserToDevice.AssignUserToDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.AssignUserToDevice.AssignUserToDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesPostRequestBody.cs
index 9f4054bf5bf..e789b7e9365 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesPostRequestBody.cs
@@ -100,7 +100,7 @@ public UpdateDevicePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.UpdateDeviceProperties.UpdateDevicePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.UpdateDeviceProperties.UpdateDevicePropertiesPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("addressableUserName", AddressableUserName);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("groupTag", GroupTag);
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesRequestBuilder.cs
index c15644acf06..1c09aea795c 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/UpdateDeviceProperties/UpdateDevicePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.WindowsAuto
         public async Task PostAsync(global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.UpdateDeviceProperties.UpdateDevicePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DeviceManagement.WindowsAutopilotDeviceIdentities.Item.UpdateDeviceProperties.UpdateDevicePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/WindowsAutopilotDeviceIdentityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/WindowsAutopilotDeviceIdentityItemRequestBuilder.cs
index 8dc1d33a198..d99fc437f29 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/WindowsAutopilotDeviceIdentityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/Item/WindowsAutopilotDeviceIdentityItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity> PatchAsync(global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/WindowsAutopilotDeviceIdentitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/WindowsAutopilotDeviceIdentitiesRequestBuilder.cs
index 162317da541..e41e7ce5f28 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/WindowsAutopilotDeviceIdentitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsAutopilotDeviceIdentities/WindowsAutopilotDeviceIdentitiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public WindowsAutopilotDeviceIdentitiesRequestBuilder(string rawUrl, IRequestAda
         public async Task<global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity> PostAsync(global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/Item/WindowsInformationProtectionAppLearningSummaryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/Item/WindowsInformationProtectionAppLearningSummaryItemRequestBuilder.cs
index f10d642d50e..b2e03bb7e27 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/Item/WindowsInformationProtectionAppLearningSummaryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/Item/WindowsInformationProtectionAppLearningSummaryItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary> PatchAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/WindowsInformationProtectionAppLearningSummariesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/WindowsInformationProtectionAppLearningSummariesRequestBuilder.cs
index d266cc72c90..1d5e69b057b 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/WindowsInformationProtectionAppLearningSummariesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionAppLearningSummaries/WindowsInformationProtectionAppLearningSummariesRequestBuilder.cs
@@ -95,7 +95,7 @@ public WindowsInformationProtectionAppLearningSummariesRequestBuilder(string raw
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary> PostAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/Item/WindowsInformationProtectionNetworkLearningSummaryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/Item/WindowsInformationProtectionNetworkLearningSummaryItemRequestBuilder.cs
index 065c7aa19af..5a1d86caae7 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/Item/WindowsInformationProtectionNetworkLearningSummaryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/Item/WindowsInformationProtectionNetworkLearningSummaryItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary> PatchAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/WindowsInformationProtectionNetworkLearningSummariesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/WindowsInformationProtectionNetworkLearningSummariesRequestBuilder.cs
index 37dd1b4378b..432597e08f9 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/WindowsInformationProtectionNetworkLearningSummariesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsInformationProtectionNetworkLearningSummaries/WindowsInformationProtectionNetworkLearningSummariesRequestBuilder.cs
@@ -95,7 +95,7 @@ public WindowsInformationProtectionNetworkLearningSummariesRequestBuilder(string
         public async Task<global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary> PostAsync(global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/DeviceMalwareStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/DeviceMalwareStatesRequestBuilder.cs
index c6684c80c28..56e3b05f03f 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/DeviceMalwareStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/DeviceMalwareStatesRequestBuilder.cs
@@ -95,7 +95,7 @@ public DeviceMalwareStatesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.MalwareStateForWindowsDevice> PostAsync(global::Microsoft.Graph.Models.MalwareStateForWindowsDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MalwareStateForWindowsDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/Item/MalwareStateForWindowsDeviceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/Item/MalwareStateForWindowsDeviceItemRequestBuilder.cs
index e99f09b7ad9..fe85b721203 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/Item/MalwareStateForWindowsDeviceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/DeviceMalwareStates/Item/MalwareStateForWindowsDeviceItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MalwareStateForWindowsDevice> PatchAsync(global::Microsoft.Graph.Models.MalwareStateForWindowsDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MalwareStateForWindowsDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/WindowsMalwareInformationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/WindowsMalwareInformationItemRequestBuilder.cs
index 55e67b7d747..74cfd9eb362 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/WindowsMalwareInformationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/Item/WindowsMalwareInformationItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsMalwareInformation> PatchAsync(global::Microsoft.Graph.Models.WindowsMalwareInformation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsMalwareInformation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/WindowsMalwareInformationRequestBuilder.cs b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/WindowsMalwareInformationRequestBuilder.cs
index 3c450e74b59..23fdc7d80a3 100644
--- a/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/WindowsMalwareInformationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DeviceManagement/WindowsMalwareInformation/WindowsMalwareInformationRequestBuilder.cs
@@ -95,7 +95,7 @@ public WindowsMalwareInformationRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.WindowsMalwareInformation> PostAsync(global::Microsoft.Graph.Models.WindowsMalwareInformation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsMalwareInformation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Devices/Delta/DeltaGetResponse.cs
index 7835cf84eb9..77e147c2ced 100644
--- a/src/Microsoft.Graph/Generated/Devices/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Device>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Devices/Delta/DeltaResponse.cs
index c977954e4fa..c5dda61e59c 100644
--- a/src/Microsoft.Graph/Generated/Devices/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Devices.Delta.Delta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Devices/DevicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/DevicesRequestBuilder.cs
index e93177f55dd..2e307ca7723 100644
--- a/src/Microsoft.Graph/Generated/Devices/DevicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/DevicesRequestBuilder.cs
@@ -119,7 +119,7 @@ public DevicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.Device> PostAsync(global::Microsoft.Graph.Models.Device body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Device body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index f6f58090cc6..b9d9e0a2ae2 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 0a31d991c0e..c16eeea85a0 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 9ccdc4de713..fae3b0f5db9 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 07d776d7af2..a02637dc9d4 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostRequestBody.cs
index 15402e829cf..96b6e650c3f 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostResponse.cs
index 138624779a0..e88751bef31 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsRequestBuilder.cs
index 82f8293f3e0..79f2ffd8a6c 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Devices.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devices.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsResponse.cs
index 0bd7e567d09..9d93a271318 100644
--- a/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.Devices.GetByIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 3dd7ad971b6..ba27aaebc50 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 6f9a48f6b68..1d1acfe1321 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 40ba12a11d4..556a91ce999 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index 89a0528e318..825a9984a79 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Devices
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index 598b3df40e0..1f6c80e37f9 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 8116cee415d..462289b8a45 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 8c4688bc366..92484794842 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 280a64730f7..e6ce4e58585 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Device
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/DeviceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/DeviceItemRequestBuilder.cs
index 061fb024339..f2ee1eaa1cf 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/DeviceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/DeviceItemRequestBuilder.cs
@@ -159,7 +159,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Device> PatchAsync(global::Microsoft.Graph.Models.Device body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -220,7 +220,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Device body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/Extensions/ExtensionsRequestBuilder.cs
index b225e7def62..690fbaa9909 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 6dc6ba68b00..9df3a9543ce 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index 7291cafad2f..930cba52f96 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 414a228e80d..3a62a32e4bf 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index e7d65144a29..dd0f09b2329 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 1143ffba0a0..1c201d9650e 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Devices.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index a4c608fa22e..b8072c67860 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 477fc10b1c8..e1fa30396d4 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index d24c3b8bb2d..32be5b30854 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index d5c49b97947..3bb4d0d1847 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Devices.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/RegisteredOwners/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/RegisteredOwners/Ref/RefRequestBuilder.cs
index 6668ccc3831..4222eb04477 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/RegisteredOwners/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/RegisteredOwners/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/devices/{device%2Did}/registeredOwners/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/Item/RegisteredUsers/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/Item/RegisteredUsers/Ref/RefRequestBuilder.cs
index 1e32cc17fd3..b60cecf7b58 100644
--- a/src/Microsoft.Graph/Generated/Devices/Item/RegisteredUsers/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/Item/RegisteredUsers/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/devices/{device%2Did}/registeredUsers/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index b98497dc21f..884e66220a3 100644
--- a/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Devices.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Devices.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index d457306e377..43674fbaf1b 100644
--- a/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Devices/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Devices.ValidateProperties.V
         public async Task PostAsync(global::Microsoft.Graph.Devices.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Devices.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DevicesWithDeviceId/DevicesWithDeviceIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/DevicesWithDeviceId/DevicesWithDeviceIdRequestBuilder.cs
index 4da4f2d8385..c49ea9ecf22 100644
--- a/src/Microsoft.Graph/Generated/DevicesWithDeviceId/DevicesWithDeviceIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DevicesWithDeviceId/DevicesWithDeviceIdRequestBuilder.cs
@@ -101,7 +101,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Device> PatchAsync(global::Microsoft.Graph.Models.Device body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Device body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/AdministrativeUnitsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/AdministrativeUnitsRequestBuilder.cs
index d4b7689ee2b..a21bea8e997 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/AdministrativeUnitsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/AdministrativeUnitsRequestBuilder.cs
@@ -101,7 +101,7 @@ public AdministrativeUnitsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.AdministrativeUnit> PostAsync(global::Microsoft.Graph.Models.AdministrativeUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AdministrativeUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaGetResponse.cs
index 780c7449d3d..e123b03ae12 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.AdministrativeUnits.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.AdministrativeUnits.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AdministrativeUnit>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaResponse.cs
index 13c8f90a92c..db99c9b98f1 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.DirectoryNamespace.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.AdministrativeUnits.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.AdministrativeUnits.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/AdministrativeUnitItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/AdministrativeUnitItemRequestBuilder.cs
index 72d497cf44c..513aa99108b 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/AdministrativeUnitItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/AdministrativeUnitItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AdministrativeUnit> PatchAsync(global::Microsoft.Graph.Models.AdministrativeUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AdministrativeUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/ExtensionsRequestBuilder.cs
index e4826aed867..59bd656a638 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index c475383cf3b..a97de44b88f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/MembersRequestBuilder.cs
index 8e1918107d4..8edc0d4b846 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/MembersRequestBuilder.cs
@@ -137,7 +137,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.DirectoryObject> PostAsync(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -179,7 +179,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/Ref/RefRequestBuilder.cs
index ff39079a394..943db517ede 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/Members/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/directory/administrativeUnits/{administrativeUnit%2Did}/members/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs
index 204f13b69b5..e738015f954 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PatchAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/ScopedRoleMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/ScopedRoleMembersRequestBuilder.cs
index 06e977b9c62..1abd583fe7c 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/ScopedRoleMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AdministrativeUnits/Item/ScopedRoleMembers/ScopedRoleMembersRequestBuilder.cs
@@ -95,7 +95,7 @@ public ScopedRoleMembersRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PostAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/AttributeSetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/AttributeSetsRequestBuilder.cs
index bf22d157c1f..0cd4d253cb8 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/AttributeSetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/AttributeSetsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AttributeSetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.AttributeSet> PostAsync(global::Microsoft.Graph.Models.AttributeSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttributeSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/Item/AttributeSetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/Item/AttributeSetItemRequestBuilder.cs
index 0ff6301d1f5..8ce25738315 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/Item/AttributeSetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/AttributeSets/Item/AttributeSetItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttributeSet> PatchAsync(global::Microsoft.Graph.Models.AttributeSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttributeSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/CustomSecurityAttributeDefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/CustomSecurityAttributeDefinitionsRequestBuilder.cs
index 328569e6228..1edd923e8e5 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/CustomSecurityAttributeDefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/CustomSecurityAttributeDefinitionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CustomSecurityAttributeDefinitionsRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition> PostAsync(global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/AllowedValuesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/AllowedValuesRequestBuilder.cs
index 5140e93a3c1..0e9647f5c6d 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/AllowedValuesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/AllowedValuesRequestBuilder.cs
@@ -95,7 +95,7 @@ public AllowedValuesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.AllowedValue> PostAsync(global::Microsoft.Graph.Models.AllowedValue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AllowedValue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/Item/AllowedValueItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/Item/AllowedValueItemRequestBuilder.cs
index c2ef84567c0..2e6bc1eb2ac 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/Item/AllowedValueItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/AllowedValues/Item/AllowedValueItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AllowedValue> PatchAsync(global::Microsoft.Graph.Models.AllowedValue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AllowedValue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/CustomSecurityAttributeDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/CustomSecurityAttributeDefinitionItemRequestBuilder.cs
index 30ee596994c..e0cfc26e302 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/CustomSecurityAttributeDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/CustomSecurityAttributeDefinitions/Item/CustomSecurityAttributeDefinitionItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition> PatchAsync(global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 38b78501fbf..fd3fa08e5b0 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 2fe6bc8e4e3..ab405e1b5a0 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index ae263ca5442..f16cb4133b1 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 607ad6c416f..e842f98e6a9 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostRequestBody.cs
index 74a5a3fa0ba..de076fe2f3d 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostResponse.cs
index b9aff4e50ee..499f2a98044 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsRequestBuilder.cs
index 72dd4f8fbb2..7cf9cadb087 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsResponse.cs
index 51d3fd7237f..574bc54f2e1 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.DirectoryNamespa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 82520c19ef5..5f2b17a18b3 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 94c4814a098..b3ea61856e3 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 0f40fc84d8b..9ee0f08c434 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index dd10e693ff7..0ab3f742317 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Directo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index cd60aac83a2..67d2ab0ab8f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 4af31091094..03eee527108 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 97b6900e87c..56207b3dabc 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 32fd4f4e4c0..8fe2535c80e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Direct
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index 2a61b87258f..ef25fc75d82 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 729481e329a..501d944f1b5 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index c2cc5c75956..1208824da4a 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 5589060f0c8..01a90fb9a61 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Directory
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index e1c1be4d722..ff4d36821aa 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index de96edad92c..a261955a5b8 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index f6bfe9cf604..d1d02dc97bf 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index d7fca7a1dda..c01b679d1f7 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Director
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index e99d7991af6..6ee840cf835 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.DeletedItems.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.DeletedItems.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index f3daa2fadd8..d815056ee20 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeletedItems/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedIt
         public async Task PostAsync(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.DeletedItems.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/DeviceLocalCredentialsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/DeviceLocalCredentialsRequestBuilder.cs
index 79f8b54864b..0b10d75931f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/DeviceLocalCredentialsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/DeviceLocalCredentialsRequestBuilder.cs
@@ -94,7 +94,7 @@ public DeviceLocalCredentialsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.DeviceLocalCredentialInfo> PostAsync(global::Microsoft.Graph.Models.DeviceLocalCredentialInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceLocalCredentialInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/Item/DeviceLocalCredentialInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/Item/DeviceLocalCredentialInfoItemRequestBuilder.cs
index 2a9ebafbb7f..89a44d96bfa 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/Item/DeviceLocalCredentialInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DeviceLocalCredentials/Item/DeviceLocalCredentialInfoItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceLocalCredentialInfo> PatchAsync(global::Microsoft.Graph.Models.DeviceLocalCredentialInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceLocalCredentialInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/DirectoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/DirectoryRequestBuilder.cs
index 571574ade61..f303c547a92 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/DirectoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/DirectoryRequestBuilder.cs
@@ -129,7 +129,7 @@ public DirectoryRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.DirectoryObject1> PatchAsync(global::Microsoft.Graph.Models.DirectoryObject1 body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryObject1 body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
index 3f0ce6483ee..80b0a3ec5f4 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.FederationConfigurations.AvailableProviderTypes.AvailableProviderTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.FederationConfigurations.AvailableProviderTypes.AvailableProviderTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesResponse.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesResponse.cs
index c14d0cefedf..c8023dabe66 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/AvailableProviderTypes/AvailableProviderTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class AvailableProviderTypesResponse : global::Microsoft.Graph.Di
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryNamespace.FederationConfigurations.AvailableProviderTypes.AvailableProviderTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.FederationConfigurations.AvailableProviderTypes.AvailableProviderTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/FederationConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/FederationConfigurationsRequestBuilder.cs
index c3bbfc695cf..9a2e8b06817 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/FederationConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/FederationConfigurationsRequestBuilder.cs
@@ -99,7 +99,7 @@ public FederationConfigurationsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.IdentityProviderBase> PostAsync(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/Item/IdentityProviderBaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/Item/IdentityProviderBaseItemRequestBuilder.cs
index cb2c6298012..e1930b85628 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/Item/IdentityProviderBaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/FederationConfigurations/Item/IdentityProviderBaseItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityProviderBase> PatchAsync(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/Item/OnPremisesDirectorySynchronizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/Item/OnPremisesDirectorySynchronizationItemRequestBuilder.cs
index c1c4ad78018..2b98dad284f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/Item/OnPremisesDirectorySynchronizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/Item/OnPremisesDirectorySynchronizationItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization> PatchAsync(global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/OnPremisesSynchronizationRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/OnPremisesSynchronizationRequestBuilder.cs
index 6cb6259d9ab..18661aa3240 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/OnPremisesSynchronizationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/OnPremisesSynchronization/OnPremisesSynchronizationRequestBuilder.cs
@@ -93,7 +93,7 @@ public OnPremisesSynchronizationRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization> PostAsync(global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/CertificateBasedAuthConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/CertificateBasedAuthConfigurationsRequestBuilder.cs
index 56b75c0d274..19428069d12 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/CertificateBasedAuthConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/CertificateBasedAuthConfigurationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CertificateBasedAuthConfigurationsRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.CertificateBasedAuthPki> PostAsync(global::Microsoft.Graph.Models.CertificateBasedAuthPki body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CertificateBasedAuthPki body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/CertificateAuthoritiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/CertificateAuthoritiesRequestBuilder.cs
index 3182223fbf2..cd324861feb 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/CertificateAuthoritiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/CertificateAuthoritiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public CertificateAuthoritiesRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.CertificateAuthorityDetail> PostAsync(global::Microsoft.Graph.Models.CertificateAuthorityDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CertificateAuthorityDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/Item/CertificateAuthorityDetailItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/Item/CertificateAuthorityDetailItemRequestBuilder.cs
index 8b2321fd00e..e71c83c0955 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/Item/CertificateAuthorityDetailItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateAuthorities/Item/CertificateAuthorityDetailItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CertificateAuthorityDetail> PatchAsync(global::Microsoft.Graph.Models.CertificateAuthorityDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CertificateAuthorityDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateBasedAuthPkiItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateBasedAuthPkiItemRequestBuilder.cs
index 22f23562014..28f97cdb6b2 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateBasedAuthPkiItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/CertificateBasedAuthPkiItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CertificateBasedAuthPki> PatchAsync(global::Microsoft.Graph.Models.CertificateBasedAuthPki body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CertificateBasedAuthPki body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadPostRequestBody.cs
index 68d35a44a98..42cd008a8a6 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadPostRequestBody.cs
@@ -68,7 +68,7 @@ public UploadPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryNamespace.PublicKeyInfrastructure.CertificateBasedAuthConfigurations.Item.Upload.UploadPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryNamespace.PublicKeyInfrastructure.CertificateBasedAuthConfigurations.Item.Upload.UploadPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("sha256FileHash", Sha256FileHash);
             writer.WriteStringValue("uploadUrl", UploadUrl);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadRequestBuilder.cs
index 4311a53ccaf..0d4de9fc0ec 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/CertificateBasedAuthConfigurations/Item/Upload/UploadRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DirectoryNamespace.PublicKey
         public async Task PostAsync(global::Microsoft.Graph.DirectoryNamespace.PublicKeyInfrastructure.CertificateBasedAuthConfigurations.Item.Upload.UploadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryNamespace.PublicKeyInfrastructure.CertificateBasedAuthConfigurations.Item.Upload.UploadPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/PublicKeyInfrastructureRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/PublicKeyInfrastructureRequestBuilder.cs
index c626d5a0dec..75004003a7e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/PublicKeyInfrastructureRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/PublicKeyInfrastructure/PublicKeyInfrastructureRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PublicKeyInfrastructureRoot> PatchAsync(global::Microsoft.Graph.Models.PublicKeyInfrastructureRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PublicKeyInfrastructureRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/Item/CompanySubscriptionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/Item/CompanySubscriptionItemRequestBuilder.cs
index b78c975c93d..f322522806d 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/Item/CompanySubscriptionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/Item/CompanySubscriptionItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CompanySubscription> PatchAsync(global::Microsoft.Graph.Models.CompanySubscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CompanySubscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/SubscriptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/SubscriptionsRequestBuilder.cs
index 388f31f0593..8c187fd3424 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/SubscriptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/Subscriptions/SubscriptionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SubscriptionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.CompanySubscription> PostAsync(global::Microsoft.Graph.Models.CompanySubscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CompanySubscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryNamespace/SubscriptionsWithCommerceSubscriptionId/SubscriptionsWithCommerceSubscriptionIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryNamespace/SubscriptionsWithCommerceSubscriptionId/SubscriptionsWithCommerceSubscriptionIdRequestBuilder.cs
index b9ff438d31b..8a722ac58e8 100644
--- a/src/Microsoft.Graph/Generated/DirectoryNamespace/SubscriptionsWithCommerceSubscriptionId/SubscriptionsWithCommerceSubscriptionIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryNamespace/SubscriptionsWithCommerceSubscriptionId/SubscriptionsWithCommerceSubscriptionIdRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CompanySubscription> PatchAsync(global::Microsoft.Graph.Models.CompanySubscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CompanySubscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaGetResponse.cs
index 7b9b1da7a0c..573d9effd0a 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaResponse.cs
index 68170328654..b80038a1ff8 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.DirectoryObjects.De
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/DirectoryObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/DirectoryObjectsRequestBuilder.cs
index 7e6670bdb07..d7cb75b31b8 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/DirectoryObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/DirectoryObjectsRequestBuilder.cs
@@ -117,7 +117,7 @@ public DirectoryObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.DirectoryObject> PostAsync(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 11b6eecd070..2203c626015 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 8457c4148b9..ea36f0326ab 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 42ce3214beb..40398d47841 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 0ef10a96a26..e7b03aedfd8 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostRequestBody.cs
index e0023105938..b650ab66a8d 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostResponse.cs
index 0e5813e46f4..1f3bd1e29fc 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsRequestBuilder.cs
index 5699609448b..4470ce03a55 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsResponse.cs
index 84552c7c243..c50eaa2cf62 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.DirectoryObjects
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index c6ade2fba8f..da494021f1f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 2f136df151a..9624dbddee4 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 2f7a0aaf6c1..79fab478d8b 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index ca97f008434..1c8d451095c 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Directo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index 0cf8a8a68e0..beec63654e4 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index f1ee2e4e596..52deeb8142d 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index def6015bbdd..1f266ec81e3 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index e11b25b89ad..2eaa74d8a6a 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Direct
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/DirectoryObjectItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/DirectoryObjectItemRequestBuilder.cs
index 4ab0528718d..d415479f68e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/DirectoryObjectItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/DirectoryObjectItemRequestBuilder.cs
@@ -128,7 +128,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryObject> PatchAsync(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -189,7 +189,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index ac1a1f4b6d1..197c235a6d2 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index bd782fa23a1..7bf592d648a 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 29a6ea430eb..7264f7b5c59 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 56e428c7dee..7e18d24298e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Directory
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 61de16e8a5a..cc214970c3f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 1e2ad1aeec9..f624a9a5d5c 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 40edde0f254..29daeed77ef 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index 12e52ac8ae5..7b2bcdff63e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Director
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 652832d5d2c..271676a32f1 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryObjects.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryObjects.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index f25770fe70e..845d99cdbb7 100644
--- a/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryObjects/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DirectoryObjects.ValidatePro
         public async Task PostAsync(global::Microsoft.Graph.DirectoryObjects.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryObjects.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaGetResponse.cs
index 0b840919a90..bf9c1e55cb3 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaResponse.cs
index 0c183eb5ea8..30234629a41 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.DirectoryRoleTempla
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/DirectoryRoleTemplatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/DirectoryRoleTemplatesRequestBuilder.cs
index cf274e45337..c185feb654e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/DirectoryRoleTemplatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/DirectoryRoleTemplatesRequestBuilder.cs
@@ -118,7 +118,7 @@ public DirectoryRoleTemplatesRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.DirectoryRoleTemplate> PostAsync(global::Microsoft.Graph.Models.DirectoryRoleTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryRoleTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 853c48c0123..b65611828eb 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 525f1bbaaa6..b32772feabf 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 9ce38431c43..e4014a3b81d 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 73b095bcd7b..f196fa8881e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostRequestBody.cs
index bbb845bad8a..e84aab19981 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostResponse.cs
index c1844d8c059..dc4c34d6eb1 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsRequestBuilder.cs
index 453af6985e0..64050f7f350 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsResponse.cs
index d596769697b..df9d06fef9b 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.DirectoryRoleTem
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index f9515191077..02815e4b281 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 9f004c49d2f..68e8c97d50d 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index a57d5cb2aba..6eb3aa89315 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index 73ff3c58de8..f467d3ba1f0 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Directo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index e11ae344677..50acec5615f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index ab425f8746a..68656497ec4 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index f14ef33d380..500f7c8a200 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 039c8dc64ab..06ce99f4c18 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Direct
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/DirectoryRoleTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/DirectoryRoleTemplateItemRequestBuilder.cs
index a207c2a626e..45b47557785 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/DirectoryRoleTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/DirectoryRoleTemplateItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryRoleTemplate> PatchAsync(global::Microsoft.Graph.Models.DirectoryRoleTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryRoleTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index 694a2cc6ee6..79df749ff21 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index cf9e6704a83..017ad504e71 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 15c7317e6cb..a36244ed9e5 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index e2742a89059..603f62e63fc 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Directory
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 8fb1743b92b..86e9be18747 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 4b8c2e6eeaf..4c23b2b06f0 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 49857e0f781..0e06a898ea6 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index 7925579c26a..6a445687587 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Director
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 1b0c2bfed95..61fbbd2d892 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoleTemplates.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoleTemplates.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index 07d1e442ab5..7c7184c9548 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoleTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.Valid
         public async Task PostAsync(global::Microsoft.Graph.DirectoryRoleTemplates.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoleTemplates.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaGetResponse.cs
index 8962adab049..c9b8689997c 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryRole>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaResponse.cs
index e7eba4f1b49..88d6f9fbfb2 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.DirectoryRoles.Delt
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/DirectoryRolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/DirectoryRolesRequestBuilder.cs
index dc9867cc4d8..dc0350436ee 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/DirectoryRolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/DirectoryRolesRequestBuilder.cs
@@ -119,7 +119,7 @@ public DirectoryRolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.DirectoryRole> PostAsync(global::Microsoft.Graph.Models.DirectoryRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 7d6fd3938d3..1645759f497 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 7c741bd1dc7..bdc5006a929 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 255bbede131..0162612f674 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index fcf143a33ca..3550aae6a67 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostRequestBody.cs
index c475c25cf20..b27b8248b77 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostResponse.cs
index 7fd18b288c7..014f926a7aa 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsRequestBuilder.cs
index 7285c1cda51..d2ceb2abb0e 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsResponse.cs
index 17de73cdebb..97514e44a88 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.DirectoryRoles.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index abc314cb04e..9d3b50d96b8 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 2b3d4171dc5..806c283db77 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index a1a10684dd0..ccb216289d6 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index 89178cfca98..bfafe567322 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Directo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index c0dc5cc8755..631a2feb7e6 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 85040866fa1..ede6ac9ead7 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index b45c9ab80b1..c32183c0807 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index d04a6e35a3c..958a69728cb 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Direct
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/DirectoryRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/DirectoryRoleItemRequestBuilder.cs
index 1dbd3da4122..46f51872a88 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/DirectoryRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/DirectoryRoleItemRequestBuilder.cs
@@ -139,7 +139,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryRole> PatchAsync(global::Microsoft.Graph.Models.DirectoryRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -200,7 +200,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index be703dc40c5..7a750259903 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 07d4ff6c883..ceef2ce2105 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 90850ccb106..457a3f79b64 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 24c2138775e..e294924c189 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Directory
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 714aef68e40..10537668b0b 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 4f4f22b51a6..a50541b7f24 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 555b935f7a4..b6cf4bec609 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index e3fd0ae18c5..0a905062700 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Director
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/Members/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/Members/Ref/RefRequestBuilder.cs
index cb4cc6eb5cb..f4e4a151b4f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/Members/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/Members/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/directoryRoles/{directoryRole%2Did}/members/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs
index 3a992e16252..fbbadb5657f 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/Item/ScopedRoleMembershipItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PatchAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/ScopedMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/ScopedMembersRequestBuilder.cs
index bc83cf31ed3..f292638ba4c 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/ScopedMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/Item/ScopedMembers/ScopedMembersRequestBuilder.cs
@@ -94,7 +94,7 @@ public ScopedMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PostAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index edecf7d9512..3ecfa8f2947 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.DirectoryRoles.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.DirectoryRoles.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index 046607b7a9b..3d2c07347a9 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRoles/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.DirectoryRoles.ValidatePrope
         public async Task PostAsync(global::Microsoft.Graph.DirectoryRoles.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Direc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.DirectoryRoles.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DirectoryRolesWithRoleTemplateId/DirectoryRolesWithRoleTemplateIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/DirectoryRolesWithRoleTemplateId/DirectoryRolesWithRoleTemplateIdRequestBuilder.cs
index e6745e095e7..9bd4c9863ed 100644
--- a/src/Microsoft.Graph/Generated/DirectoryRolesWithRoleTemplateId/DirectoryRolesWithRoleTemplateIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DirectoryRolesWithRoleTemplateId/DirectoryRolesWithRoleTemplateIdRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryRole> PatchAsync(global::Microsoft.Graph.Models.DirectoryRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DomainDnsRecords/DomainDnsRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/DomainDnsRecords/DomainDnsRecordsRequestBuilder.cs
index 2e2a39ff411..ab5f165b6f3 100644
--- a/src/Microsoft.Graph/Generated/DomainDnsRecords/DomainDnsRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DomainDnsRecords/DomainDnsRecordsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DomainDnsRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.DomainDnsRecord> PostAsync(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/DomainDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/DomainDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs
index cdcb1b414ea..fc36b637082 100644
--- a/src/Microsoft.Graph/Generated/DomainDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/DomainDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DomainDnsRecord> PatchAsync(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/DomainsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/DomainsRequestBuilder.cs
index d9e5c70f4e9..e3cb4272742 100644
--- a/src/Microsoft.Graph/Generated/Domains/DomainsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/DomainsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DomainsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.Domain> PostAsync(global::Microsoft.Graph.Models.Domain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Domain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/DomainItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/DomainItemRequestBuilder.cs
index 5e9882f6945..36c3d65e87e 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/DomainItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/DomainItemRequestBuilder.cs
@@ -147,7 +147,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Domain> PatchAsync(global::Microsoft.Graph.Models.Domain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -208,7 +208,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Domain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/FederationConfigurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/FederationConfigurationRequestBuilder.cs
index ed076ca063f..6db6cd5db10 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/FederationConfigurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/FederationConfigurationRequestBuilder.cs
@@ -95,7 +95,7 @@ public FederationConfigurationRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.InternalDomainFederation> PostAsync(global::Microsoft.Graph.Models.InternalDomainFederation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.InternalDomainFederation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/Item/InternalDomainFederationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/Item/InternalDomainFederationItemRequestBuilder.cs
index 75715b9b0fb..a4020ba9d86 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/Item/InternalDomainFederationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/FederationConfiguration/Item/InternalDomainFederationItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.InternalDomainFederation> PatchAsync(global::Microsoft.Graph.Models.InternalDomainFederation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InternalDomainFederation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeletePostRequestBody.cs
index 14c29b209ed..f62a4b1afb8 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeletePostRequestBody.cs
@@ -42,7 +42,7 @@ public ForceDeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Domains.Item.ForceDelete.ForceDeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Domains.Item.ForceDelete.ForceDeletePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("disableUserAccounts", DisableUserAccounts);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeleteRequestBuilder.cs
index 115c45f7a64..63bf3f5db27 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/ForceDelete/ForceDeleteRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Domains.Item.ForceDelete.For
         public async Task PostAsync(global::Microsoft.Graph.Domains.Item.ForceDelete.ForceDeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Domai
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Domains.Item.ForceDelete.ForceDeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromotePostResponse.cs b/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromotePostResponse.cs
index 32cac1f122d..118900e6a3f 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromotePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromotePostResponse.cs
@@ -42,7 +42,7 @@ public PromotePostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Domains.Item.Promote.PromotePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Domains.Item.Promote.PromotePostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromoteResponse.cs b/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromoteResponse.cs
index feb0c9d0420..6461fdecf18 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromoteResponse.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/Promote/PromoteResponse.cs
@@ -20,7 +20,7 @@ public partial class PromoteResponse : global::Microsoft.Graph.Domains.Item.Prom
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Domains.Item.Promote.PromoteResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Domains.Item.Promote.PromoteResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/Item/DomainDnsRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/Item/DomainDnsRecordItemRequestBuilder.cs
index 45134c54344..221d2eaefc1 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/Item/DomainDnsRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/Item/DomainDnsRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DomainDnsRecord> PatchAsync(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/ServiceConfigurationRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/ServiceConfigurationRecordsRequestBuilder.cs
index 82f4df8ba9b..752fa016540 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/ServiceConfigurationRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/ServiceConfigurationRecords/ServiceConfigurationRecordsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ServiceConfigurationRecordsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.DomainDnsRecord> PostAsync(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs
index f518892ca50..6930d323ea1 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/Item/DomainDnsRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DomainDnsRecord> PatchAsync(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/VerificationDnsRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/VerificationDnsRecordsRequestBuilder.cs
index e8e59b6bb88..61171d9553e 100644
--- a/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/VerificationDnsRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Domains/Item/VerificationDnsRecords/VerificationDnsRecordsRequestBuilder.cs
@@ -94,7 +94,7 @@ public VerificationDnsRecordsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.DomainDnsRecord> PostAsync(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DomainDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/DrivesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/DrivesRequestBuilder.cs
index 32242ed7ddb..2fb22ac698b 100644
--- a/src/Microsoft.Graph/Generated/Drives/DrivesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/DrivesRequestBuilder.cs
@@ -87,7 +87,7 @@ public DrivesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Drive> PostAsync(global::Microsoft.Graph.Models.Drive body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Drive body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Bundles/BundlesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Bundles/BundlesRequestBuilder.cs
index e7e3a3d5cd6..658ee7f60c7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Bundles/BundlesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Bundles/BundlesRequestBuilder.cs
@@ -93,7 +93,7 @@ public BundlesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.DriveItem> PostAsync(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Bundles/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Bundles/Item/Content/ContentRequestBuilder.cs
index 34575b32bb3..d7c8f1e81ed 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Bundles/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Bundles/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 504267ae153..53cfd27576e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/DriveItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/DriveItemRequestBuilder.cs
index 2ceb27547ae..62b12ead8ba 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/DriveItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/DriveItemRequestBuilder.cs
@@ -157,7 +157,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Drive> PatchAsync(global::Microsoft.Graph.Models.Drive body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -228,7 +228,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Drive body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Following/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Following/Item/Content/ContentRequestBuilder.cs
index f8eda34ef80..b1e33d43dd9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Following/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Following/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/AnalyticsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/AnalyticsRequestBuilder.cs
index 64ed41ad889..ef9eb425119 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/AnalyticsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/AnalyticsRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemAnalytics> PatchAsync(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
index 05a536e1c1a..d7965fa0885 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ItemActivity> PostAsync(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
index 9149168be2b..1f48f326052 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
index 7b2842f71d3..50bb65ec5e6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemActivity> PatchAsync(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
index 724ed3299d1..12d96c3407a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemActivityStat> PatchAsync(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
index 1828fde9764..eda88128b92 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemActivityStatsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.ItemActivityStat> PostAsync(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelPostRequestBody.cs
index b1214c816ac..fa7e62c289f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelPostRequestBody.cs
@@ -75,7 +75,7 @@ public AssignSensitivityLabelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.AssignSensitivityLabel.AssignSensitivityLabelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.AssignSensitivityLabel.AssignSensitivityLabelPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SensitivityLabelAssignmentMethod>("assignmentMethod", AssignmentMethod);
             writer.WriteStringValue("justificationText", JustificationText);
             writer.WriteStringValue("sensitivityLabelId", SensitivityLabelId);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelRequestBuilder.cs
index b67b85f3fd3..c153b38788a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/AssignSensitivityLabel/AssignSensitivityLabelRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Assig
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.AssignSensitivityLabel.AssignSensitivityLabelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.AssignSensitivityLabel.AssignSensitivityLabelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinPostRequestBody.cs
index d13cd79326a..b4b13a2c278 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinPostRequestBody.cs
@@ -68,7 +68,7 @@ public CheckinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Checkin.CheckinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Checkin.CheckinPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("checkInAs", CheckInAs);
             writer.WriteStringValue("comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinRequestBuilder.cs
index adb5fd104ec..49759013def 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Checkin/CheckinRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Check
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Checkin.CheckinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Checkin.CheckinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/ChildrenRequestBuilder.cs
index ed72c809725..fbc2492c5c4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/ChildrenRequestBuilder.cs
@@ -94,7 +94,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.DriveItem> PostAsync(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/Item/Content/ContentRequestBuilder.cs
index 1f0ecfaf9a1..c922b099321 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Children/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Content/ContentRequestBuilder.cs
index 9462facd884..d71b9391934 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyPostRequestBody.cs
index e381f3fd9b2..21a7fd3de5b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyPostRequestBody.cs
@@ -81,7 +81,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("childrenOnly", ChildrenOnly);
             writer.WriteBoolValue("includeAllVersionHistory", IncludeAllVersionHistory);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyRequestBuilder.cs
index 49351b29ea1..8cc2d109082 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Copy/CopyRequestBuilder.cs
@@ -51,7 +51,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.DriveItem> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
index 3b2c9184977..3fa8b0f3d8d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
@@ -135,7 +135,7 @@ public CreateLinkPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.CreateLink.CreateLinkPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.CreateLink.CreateLinkPostRequestBody();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("password", Password);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
index 47303026d51..2dfdb672cff 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateLinkRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index f08233d64b2..57e1a6f3e26 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DriveItemUploadableProperties>("item", Item);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 9a1e585cb31..78e4079444c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -51,7 +51,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index e60d4845bb8..0c8140cfe2c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaGetResponse.cs
index c4b3614b25d..4c9c41c069a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaResponse.cs
index 23e3fe8c70d..9aa0a34cd0d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenGetResponse.cs
index 4809c98832a..0c032d00b80 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaWithTokenGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.DeltaWithToken.DeltaWithTokenGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.DeltaWithToken.DeltaWithTokenGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenResponse.cs
index 46e338339ec..0d27d65dc0b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DeltaWithToken/DeltaWithTokenResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaWithTokenResponse : global::Microsoft.Graph.Drives.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.DeltaWithToken.DeltaWithTokenResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.DeltaWithToken.DeltaWithTokenResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DriveItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DriveItemItemRequestBuilder.cs
index 92013b2287b..01c548f506f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DriveItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/DriveItemItemRequestBuilder.cs
@@ -297,7 +297,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DriveItem> PatchAsync(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -368,7 +368,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 824d29813a4..f9bee508358 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index a8d7c90408f..716f2121edd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index c78febf1cf9..2ac591fe51f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index d43ff6e3361..9567deae31f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostRequestBody.cs
index 9c5424e51fc..e293c7d9b48 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostRequestBody.cs
@@ -135,7 +135,7 @@ public InvitePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostRequestBody();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("password", Password);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostResponse.cs
index 65f61527ad8..df3e76584a3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InvitePostResponse.cs
@@ -36,7 +36,7 @@ public partial class InvitePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteRequestBuilder.cs
index 8de5dede1b9..b2fb2109302 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteRequestBuilder.cs
@@ -51,7 +51,7 @@ public InviteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostResponse> PostAsInvitePostResponseAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public InviteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InviteResponse> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InvitePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteResponse.cs
index 58934ed0960..6092772ff1a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Invite/InviteResponse.cs
@@ -20,7 +20,7 @@ public partial class InviteResponse : global::Microsoft.Graph.Drives.Item.Items.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InviteResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Invite.InviteResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index cd838f894ed..64121bf04e7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
index b5dc63f559e..460bbe7b062 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
@@ -69,7 +69,7 @@ public GrantPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRecipient>("recipients", Recipients);
             writer.WriteCollectionOfPrimitiveValues<string>("roles", Roles);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostResponse.cs
index b393fb60a7b..aa670592ad9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GrantPostResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
index 75c9e516787..c788bd70833 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
@@ -51,7 +51,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostResponse> PostAsGrantPostResponseAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantResponse> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantResponse.cs
index ee9f7c265ec..74ead481209 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/Grant/GrantResponse.cs
@@ -20,7 +20,7 @@ public partial class GrantResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Permissions.Item.Grant.GrantResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/PermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/PermissionItemRequestBuilder.cs
index f50a45830a9..8c0cd39ab70 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/PermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/Item/PermissionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Permission> PatchAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/PermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/PermissionsRequestBuilder.cs
index a9de6c9041c..2eec1307b85 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/PermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Permissions/PermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewPostRequestBody.cs
index 12e0b27ce3a..e216a272386 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewPostRequestBody.cs
@@ -58,7 +58,7 @@ public PreviewPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Preview.PreviewPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Preview.PreviewPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("page", Page);
             writer.WriteDoubleValue("zoom", Zoom);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewRequestBuilder.cs
index 542c3d4b251..e654adcc9ee 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Preview/PreviewRequestBuilder.cs
@@ -51,7 +51,7 @@ public PreviewRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ItemPreviewInfo> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Preview.PreviewPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Preview.PreviewPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestorePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestorePostRequestBody.cs
index aaf7ecf0d48..8ae5232a7a3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestorePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestorePostRequestBody.cs
@@ -69,7 +69,7 @@ public RestorePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Restore.RestorePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Restore.RestorePostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemReference>("parentReference", ParentReference);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestoreRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestoreRequestBuilder.cs
index 3abbbec50b6..598cb22d800 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestoreRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Restore/RestoreRequestBuilder.cs
@@ -52,7 +52,7 @@ public RestoreRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.DriveItem> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Restore.RestorePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Restore.RestorePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/RetentionLabel/RetentionLabelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/RetentionLabel/RetentionLabelRequestBuilder.cs
index 20b5cd67330..46b33d912fd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/RetentionLabel/RetentionLabelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/RetentionLabel/RetentionLabelRequestBuilder.cs
@@ -81,8 +81,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ItemRetentionLabel>(requestInfo, global::Microsoft.Graph.Models.ItemRetentionLabel.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Apply (set) a retention label on a driveItem (files and folders). Retention labels don&apos;t need to be published in a retention label policy to be applied using this method. When a retention label is applied to a folder, all the items in the folder are tagged with the same retention label. For information about conflict resolution for retention labels, see Will an existing label be overridden or removed. For information about retention labels from an administrator&apos;s perspective, see Use retention labels to manage the lifecycle of documents stored in SharePoint.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/driveitem-setretentionlabel?view=graph-rest-1.0" />
+        /// Lock or unlock a retention label on a driveItem that classifies content as records. For information about retention labels from an administrator&apos;s perspective, see Use retention labels to manage the lifecycle of documents stored in SharePoint. For more information about how you can lock and unlock retention labels, see Use record versioning to update records stored in SharePoint or OneDrive.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/driveitem-lockorunlockrecord?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ItemRetentionLabel"/></returns>
         /// <param name="body">The request body</param>
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemRetentionLabel> PatchAsync(global::Microsoft.Graph.Models.ItemRetentionLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -145,7 +145,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Apply (set) a retention label on a driveItem (files and folders). Retention labels don&apos;t need to be published in a retention label policy to be applied using this method. When a retention label is applied to a folder, all the items in the folder are tagged with the same retention label. For information about conflict resolution for retention labels, see Will an existing label be overridden or removed. For information about retention labels from an administrator&apos;s perspective, see Use retention labels to manage the lifecycle of documents stored in SharePoint.
+        /// Lock or unlock a retention label on a driveItem that classifies content as records. For information about retention labels from an administrator&apos;s perspective, see Use retention labels to manage the lifecycle of documents stored in SharePoint. For more information about how you can lock and unlock retention labels, see Use record versioning to update records stored in SharePoint or OneDrive.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemRetentionLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQGetResponse.cs
index d402966754c..adb7345ecf9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SearchWithQGetResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.SearchWithQ.SearchWithQGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.SearchWithQ.SearchWithQGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQResponse.cs
index c57d071bd8b..9b700d7b80e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/SearchWithQ/SearchWithQResponse.cs
@@ -20,7 +20,7 @@ public partial class SearchWithQResponse : global::Microsoft.Graph.Drives.Item.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.SearchWithQ.SearchWithQResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.SearchWithQ.SearchWithQResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
index 86dbdc2dbe3..2421019aa93 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Subscription> PatchAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/SubscriptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/SubscriptionsRequestBuilder.cs
index 73e907cb39d..b9066a3cb74 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/SubscriptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Subscriptions/SubscriptionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubscriptionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Subscription> PostAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/Item/ThumbnailSetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/Item/ThumbnailSetItemRequestBuilder.cs
index c24f915bf53..7813af1ad6d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/Item/ThumbnailSetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/Item/ThumbnailSetItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ThumbnailSet> PatchAsync(global::Microsoft.Graph.Models.ThumbnailSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ThumbnailSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/ThumbnailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/ThumbnailsRequestBuilder.cs
index 0286bbd77e4..d48c1126034 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/ThumbnailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Thumbnails/ThumbnailsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ThumbnailsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ThumbnailSet> PostAsync(global::Microsoft.Graph.Models.ThumbnailSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ThumbnailSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionPostRequestBody.cs
index afa1e178024..ca4a20dab86 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionPostRequestBody.cs
@@ -68,7 +68,7 @@ public ValidatePermissionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.ValidatePermission.ValidatePermissionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.ValidatePermission.ValidatePermissionPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("challengeToken", ChallengeToken);
             writer.WriteStringValue("password", Password);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionRequestBuilder.cs
index be71791e3b6..4eeabf759bb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/ValidatePermission/ValidatePermissionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Valid
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.ValidatePermission.ValidatePermissionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.ValidatePermission.ValidatePermissionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/Content/ContentRequestBuilder.cs
index ce442689c64..4234f1f85b9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.DriveItemVersion> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/DriveItemVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/DriveItemVersionItemRequestBuilder.cs
index 6078461b751..52b30052f68 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/DriveItemVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/Item/DriveItemVersionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DriveItemVersion> PatchAsync(global::Microsoft.Graph.Models.DriveItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DriveItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/VersionsRequestBuilder.cs
index 5205ea4290a..355f9142745 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.DriveItemVersion> PostAsync(global::Microsoft.Graph.Models.DriveItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/ApplicationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/ApplicationRequestBuilder.cs
index e4a3dacb2dc..6c744a2b2ea 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/ApplicationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/ApplicationRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookApplication> PatchAsync(global::Microsoft.Graph.Models.WorkbookApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculatePostRequestBody.cs
index c2bcc886beb..6fdf15a4c4c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculatePostRequestBody.cs
@@ -52,7 +52,7 @@ public CalculatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Application.Calculate.CalculatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Application.Calculate.CalculatePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("calculationType", CalculationType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculateRequestBuilder.cs
index d03a70da8ac..458002534bd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Application/Calculate/CalculateRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Application.Calculate.CalculatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Application.Calculate.CalculatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/CommentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/CommentsRequestBuilder.cs
index 7a7b8d407f1..65c4f466780 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/CommentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/CommentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CommentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookComment> PostAsync(global::Microsoft.Graph.Models.WorkbookComment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookComment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/Item/WorkbookCommentReplyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/Item/WorkbookCommentReplyItemRequestBuilder.cs
index d42daddfb7e..940477d4071 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/Item/WorkbookCommentReplyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/Item/WorkbookCommentReplyItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookCommentReply> PatchAsync(global::Microsoft.Graph.Models.WorkbookCommentReply body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookCommentReply body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/RepliesRequestBuilder.cs
index 64529970c85..b5a41d9d0ae 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/Replies/RepliesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookCommentReply> PostAsync(global::Microsoft.Graph.Models.WorkbookCommentReply body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookCommentReply body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/WorkbookCommentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/WorkbookCommentItemRequestBuilder.cs
index 14d304259c2..5572173c9c9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/WorkbookCommentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Comments/Item/WorkbookCommentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookComment> PatchAsync(global::Microsoft.Graph.Models.WorkbookComment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookComment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionPostRequestBody.cs
index ffeccbd3c83..7df92885507 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionPostRequestBody.cs
@@ -42,7 +42,7 @@ public CreateSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.CreateSession.CreateSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.CreateSession.CreateSessionPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("persistChanges", PersistChanges);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionRequestBuilder.cs
index 014225b2753..5e578b71f52 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/CreateSession/CreateSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateSessionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.WorkbookSessionInfo> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.CreateSession.CreateSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.CreateSession.CreateSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsPostRequestBody.cs
index 1e94204d75e..f69edb83eae 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsPostRequestBody.cs
@@ -52,7 +52,7 @@ public AbsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Abs.AbsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Abs.AbsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsRequestBuilder.cs
index 3fafae659b9..35e9b353013 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Abs/AbsRequestBuilder.cs
@@ -51,7 +51,7 @@ public AbsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Abs.AbsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Abs.AbsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntPostRequestBody.cs
index fab3f128f88..090172f7e35 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntPostRequestBody.cs
@@ -164,7 +164,7 @@ public AccrIntPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrInt.AccrIntPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrInt.AccrIntPostRequestBody();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("calcMethod", CalcMethod);
             writer.WriteObjectValue<UntypedNode>("firstInterest", FirstInterest);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntRequestBuilder.cs
index ca6655ab08b..9ec3aa35d8d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrInt/AccrIntRequestBuilder.cs
@@ -51,7 +51,7 @@ public AccrIntRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrInt.AccrIntPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrInt.AccrIntPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMPostRequestBody.cs
index 1dab7d17253..57c45505f06 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMPostRequestBody.cs
@@ -116,7 +116,7 @@ public AccrIntMPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrIntM.AccrIntMPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrIntM.AccrIntMPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("issue", Issue);
             writer.WriteObjectValue<UntypedNode>("par", Par);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMRequestBuilder.cs
index c825b5d7dea..eda2159dfa7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AccrIntM/AccrIntMRequestBuilder.cs
@@ -51,7 +51,7 @@ public AccrIntMRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrIntM.AccrIntMPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AccrIntM.AccrIntMPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosPostRequestBody.cs
index 43ca8a9c98e..48d0998e691 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosPostRequestBody.cs
@@ -52,7 +52,7 @@ public AcosPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acos.AcosPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acos.AcosPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosRequestBuilder.cs
index ccd84cde445..05b9b321e30 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acos/AcosRequestBuilder.cs
@@ -51,7 +51,7 @@ public AcosRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acos.AcosPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acos.AcosPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshPostRequestBody.cs
index ec298cbd493..7bbdb8ac8ac 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshPostRequestBody.cs
@@ -52,7 +52,7 @@ public AcoshPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acosh.AcoshPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acosh.AcoshPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshRequestBuilder.cs
index 72c388e9abe..662752538fa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acosh/AcoshRequestBuilder.cs
@@ -51,7 +51,7 @@ public AcoshRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acosh.AcoshPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acosh.AcoshPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotPostRequestBody.cs
index 24ad15a2d9b..c00b3be1402 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotPostRequestBody.cs
@@ -52,7 +52,7 @@ public AcotPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acot.AcotPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acot.AcotPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotRequestBuilder.cs
index 8641589b57a..60763565530 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acot/AcotRequestBuilder.cs
@@ -51,7 +51,7 @@ public AcotRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acot.AcotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acot.AcotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothPostRequestBody.cs
index 63fbff72c56..74ebaa25eef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothPostRequestBody.cs
@@ -52,7 +52,7 @@ public AcothPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acoth.AcothPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acoth.AcothPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothRequestBuilder.cs
index 28101c9cd69..383095f3b05 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Acoth/AcothRequestBuilder.cs
@@ -51,7 +51,7 @@ public AcothRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acoth.AcothPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Acoth.AcothPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcPostRequestBody.cs
index 7c9a7d44801..12881aca63a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcPostRequestBody.cs
@@ -148,7 +148,7 @@ public AmorDegrcPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorDegrc.AmorDegrcPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorDegrc.AmorDegrcPostRequestBody();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("cost", Cost);
             writer.WriteObjectValue<UntypedNode>("datePurchased", DatePurchased);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcRequestBuilder.cs
index bbf1fc421c6..77c3fa174c6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorDegrc/AmorDegrcRequestBuilder.cs
@@ -51,7 +51,7 @@ public AmorDegrcRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorDegrc.AmorDegrcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorDegrc.AmorDegrcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincPostRequestBody.cs
index 2382881a3a5..6501e8fc5da 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincPostRequestBody.cs
@@ -148,7 +148,7 @@ public AmorLincPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorLinc.AmorLincPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorLinc.AmorLincPostRequestBody();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("cost", Cost);
             writer.WriteObjectValue<UntypedNode>("datePurchased", DatePurchased);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincRequestBuilder.cs
index c8d79d982f7..d7dfc3add58 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AmorLinc/AmorLincRequestBuilder.cs
@@ -51,7 +51,7 @@ public AmorLincRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorLinc.AmorLincPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AmorLinc.AmorLincPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndPostRequestBody.cs
index a0bb2b6d6ea..daf0a2810ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndPostRequestBody.cs
@@ -52,7 +52,7 @@ public AndPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.And.AndPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.And.AndPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndRequestBuilder.cs
index 6fef6bed8e3..6af524a970f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/And/AndRequestBuilder.cs
@@ -51,7 +51,7 @@ public AndRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.And.AndPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.And.AndPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicPostRequestBody.cs
index b6684a5d510..9410ef5369e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicPostRequestBody.cs
@@ -52,7 +52,7 @@ public ArabicPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Arabic.ArabicPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Arabic.ArabicPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicRequestBuilder.cs
index d07685db1b6..37fd3854718 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Arabic/ArabicRequestBuilder.cs
@@ -51,7 +51,7 @@ public ArabicRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Arabic.ArabicPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Arabic.ArabicPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasPostRequestBody.cs
index ae37dc6927b..f4c5b7e3133 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasPostRequestBody.cs
@@ -52,7 +52,7 @@ public AreasPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Areas.AreasPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Areas.AreasPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("reference", Reference);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasRequestBuilder.cs
index 62a879a6d47..a6fcb7a74b0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Areas/AreasRequestBuilder.cs
@@ -51,7 +51,7 @@ public AreasRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Areas.AreasPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Areas.AreasPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscPostRequestBody.cs
index 4dfd2246ecc..078bb792c04 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscPostRequestBody.cs
@@ -52,7 +52,7 @@ public AscPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asc.AscPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asc.AscPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscRequestBuilder.cs
index 63c6001b2a0..d03627b5da2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asc/AscRequestBuilder.cs
@@ -51,7 +51,7 @@ public AscRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asc.AscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asc.AscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinPostRequestBody.cs
index a877506d96b..3641fd712d0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinPostRequestBody.cs
@@ -52,7 +52,7 @@ public AsinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asin.AsinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asin.AsinPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinRequestBuilder.cs
index 72a29a157bd..7d101e9050a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asin/AsinRequestBuilder.cs
@@ -51,7 +51,7 @@ public AsinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asin.AsinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asin.AsinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhPostRequestBody.cs
index 0e6415109d8..a196d862743 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhPostRequestBody.cs
@@ -52,7 +52,7 @@ public AsinhPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asinh.AsinhPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asinh.AsinhPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhRequestBuilder.cs
index 908ff190dcf..3a59dc81afe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Asinh/AsinhRequestBuilder.cs
@@ -51,7 +51,7 @@ public AsinhRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asinh.AsinhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Asinh.AsinhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanPostRequestBody.cs
index 8e4bfdee142..067fb25ed00 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanPostRequestBody.cs
@@ -52,7 +52,7 @@ public AtanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan.AtanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan.AtanPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanRequestBuilder.cs
index 212cfc93c7a..2f55774acf2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan/AtanRequestBuilder.cs
@@ -51,7 +51,7 @@ public AtanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan.AtanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan.AtanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2PostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2PostRequestBody.cs
index be04926e508..806543c4a32 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2PostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2PostRequestBody.cs
@@ -68,7 +68,7 @@ public Atan2PostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan2.Atan2PostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan2.Atan2PostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("xNum", XNum);
             writer.WriteObjectValue<UntypedNode>("yNum", YNum);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2RequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2RequestBuilder.cs
index c6119701ee7..537e349a468 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atan2/Atan2RequestBuilder.cs
@@ -51,7 +51,7 @@ public Atan2RequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan2.Atan2PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atan2.Atan2PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhPostRequestBody.cs
index b9b46819f45..549cc41fe28 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhPostRequestBody.cs
@@ -52,7 +52,7 @@ public AtanhPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atanh.AtanhPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atanh.AtanhPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhRequestBuilder.cs
index 5ad6de42e1f..dff771e43bd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Atanh/AtanhRequestBuilder.cs
@@ -51,7 +51,7 @@ public AtanhRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atanh.AtanhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Atanh.AtanhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevPostRequestBody.cs
index ade082f5713..b493001cf8e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevPostRequestBody.cs
@@ -52,7 +52,7 @@ public AveDevPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AveDev.AveDevPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AveDev.AveDevPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevRequestBuilder.cs
index 16096b8961d..795f2840a52 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AveDev/AveDevRequestBuilder.cs
@@ -51,7 +51,7 @@ public AveDevRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AveDev.AveDevPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AveDev.AveDevPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AveragePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AveragePostRequestBody.cs
index 8de85e42587..4a65a958e06 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AveragePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AveragePostRequestBody.cs
@@ -52,7 +52,7 @@ public AveragePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Average.AveragePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Average.AveragePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AverageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AverageRequestBuilder.cs
index 2cbd13c0c26..c3bc3aeead8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AverageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Average/AverageRequestBuilder.cs
@@ -51,7 +51,7 @@ public AverageRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Average.AveragePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Average.AveragePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageAPostRequestBody.cs
index dc6473a1602..2a703cd6455 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageAPostRequestBody.cs
@@ -52,7 +52,7 @@ public AverageAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageA.AverageAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageA.AverageAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageARequestBuilder.cs
index 98e0b23ba16..cd854a275ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageA/AverageARequestBuilder.cs
@@ -51,7 +51,7 @@ public AverageARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageA.AverageAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageA.AverageAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfPostRequestBody.cs
index 0cb46c0f3f3..967dd8789c2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfPostRequestBody.cs
@@ -84,7 +84,7 @@ public AverageIfPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIf.AverageIfPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIf.AverageIfPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("averageRange", AverageRange);
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("range", Range);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfRequestBuilder.cs
index 98f8b6d6b19..02dcfe3cc41 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIf/AverageIfRequestBuilder.cs
@@ -51,7 +51,7 @@ public AverageIfRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIf.AverageIfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIf.AverageIfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsPostRequestBody.cs
index 9a8b00f0b6f..4de6ba6b5b2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsPostRequestBody.cs
@@ -68,7 +68,7 @@ public AverageIfsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIfs.AverageIfsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIfs.AverageIfsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("averageRange", AverageRange);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsRequestBuilder.cs
index f68e5422553..a8699cf8686 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/AverageIfs/AverageIfsRequestBuilder.cs
@@ -51,7 +51,7 @@ public AverageIfsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIfs.AverageIfsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.AverageIfs.AverageIfsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextPostRequestBody.cs
index 46a2179fc82..64389b6da4a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextPostRequestBody.cs
@@ -52,7 +52,7 @@ public BahtTextPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BahtText.BahtTextPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BahtText.BahtTextPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextRequestBuilder.cs
index c48973741d8..cf61ea70fca 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BahtText/BahtTextRequestBuilder.cs
@@ -51,7 +51,7 @@ public BahtTextRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BahtText.BahtTextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BahtText.BahtTextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BasePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BasePostRequestBody.cs
index 3da4d963629..2be921f0901 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BasePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BasePostRequestBody.cs
@@ -84,7 +84,7 @@ public BasePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Base.BasePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Base.BasePostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("minLength", MinLength);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("radix", Radix);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BaseRequestBuilderEscaped.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BaseRequestBuilderEscaped.cs
index 206072c3b14..fe7a386c099 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BaseRequestBuilderEscaped.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Base/BaseRequestBuilderEscaped.cs
@@ -51,7 +51,7 @@ public BaseRequestBuilderEscaped(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Base.BasePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Base.BasePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIPostRequestBody.cs
index 14ffe7e6404..82a1cc13d60 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIPostRequestBody.cs
@@ -68,7 +68,7 @@ public BesselIPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselI.BesselIPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselI.BesselIPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("n", N);
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIRequestBuilder.cs
index 88fb8fb71b8..a3d1f941297 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselI/BesselIRequestBuilder.cs
@@ -51,7 +51,7 @@ public BesselIRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselI.BesselIPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselI.BesselIPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJPostRequestBody.cs
index 9c16d690489..7b92a51c258 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJPostRequestBody.cs
@@ -68,7 +68,7 @@ public BesselJPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselJ.BesselJPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselJ.BesselJPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("n", N);
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJRequestBuilder.cs
index 5c8fe5ff2e1..a3c16fbfffe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselJ/BesselJRequestBuilder.cs
@@ -51,7 +51,7 @@ public BesselJRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselJ.BesselJPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselJ.BesselJPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKPostRequestBody.cs
index 43fcd40ed2f..3b9c002e0d0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKPostRequestBody.cs
@@ -68,7 +68,7 @@ public BesselKPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselK.BesselKPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselK.BesselKPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("n", N);
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKRequestBuilder.cs
index fdfddf3382d..150754129ef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselK/BesselKRequestBuilder.cs
@@ -51,7 +51,7 @@ public BesselKRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselK.BesselKPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselK.BesselKPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYPostRequestBody.cs
index 0a92f94a234..4d9c9124dd8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYPostRequestBody.cs
@@ -68,7 +68,7 @@ public BesselYPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselY.BesselYPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselY.BesselYPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("n", N);
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYRequestBuilder.cs
index d988143f24c..9e9d7dd42ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/BesselY/BesselYRequestBuilder.cs
@@ -51,7 +51,7 @@ public BesselYRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselY.BesselYPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.BesselY.BesselYPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistPostRequestBody.cs
index df621b5327a..59e6b764a1e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistPostRequestBody.cs
@@ -132,7 +132,7 @@ public Beta_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Dist.Beta_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Dist.Beta_DistPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("A", A);
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("B", B);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistRequestBuilder.cs
index 672e15c6e15..565c6f30831 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Dist/Beta_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Beta_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Dist.Beta_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Dist.Beta_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvPostRequestBody.cs
index 310c385f7f1..900d94975f6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvPostRequestBody.cs
@@ -116,7 +116,7 @@ public Beta_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Inv.Beta_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Inv.Beta_InvPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("A", A);
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("B", B);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvRequestBuilder.cs
index fadf0a45a82..7de845b44ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Beta_Inv/Beta_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public Beta_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Inv.Beta_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Beta_Inv.Beta_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecPostRequestBody.cs
index 9d698501e02..c4cb2076000 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecPostRequestBody.cs
@@ -52,7 +52,7 @@ public Bin2DecPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Dec.Bin2DecPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Dec.Bin2DecPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecRequestBuilder.cs
index 6d34fd8df14..4f27c8c53fd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Dec/Bin2DecRequestBuilder.cs
@@ -51,7 +51,7 @@ public Bin2DecRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Dec.Bin2DecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Dec.Bin2DecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexPostRequestBody.cs
index a538ce7df92..74044159806 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexPostRequestBody.cs
@@ -68,7 +68,7 @@ public Bin2HexPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Hex.Bin2HexPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Hex.Bin2HexPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexRequestBuilder.cs
index c1f8b288995..a99a57daa44 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Hex/Bin2HexRequestBuilder.cs
@@ -51,7 +51,7 @@ public Bin2HexRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Hex.Bin2HexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Hex.Bin2HexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctPostRequestBody.cs
index 06b60dee0a0..3476048d6cc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctPostRequestBody.cs
@@ -68,7 +68,7 @@ public Bin2OctPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Oct.Bin2OctPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Oct.Bin2OctPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctRequestBuilder.cs
index dbf0bfeafad..dbde136e1e9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bin2Oct/Bin2OctRequestBuilder.cs
@@ -51,7 +51,7 @@ public Bin2OctRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Oct.Bin2OctPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bin2Oct.Bin2OctPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistPostRequestBody.cs
index f15b1ecbdf8..da289468f2e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistPostRequestBody.cs
@@ -100,7 +100,7 @@ public Binom_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist.Binom_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist.Binom_DistPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("numberS", NumberS);
             writer.WriteObjectValue<UntypedNode>("probabilityS", ProbabilityS);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistRequestBuilder.cs
index 7f85c2a5b98..862dc052231 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist/Binom_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Binom_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist.Binom_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist.Binom_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangePostRequestBody.cs
index 90e767896ee..dc03d5f54af 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangePostRequestBody.cs
@@ -100,7 +100,7 @@ public Binom_Dist_RangePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist_Range.Binom_Dist_RangePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist_Range.Binom_Dist_RangePostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numberS", NumberS);
             writer.WriteObjectValue<UntypedNode>("numberS2", NumberS2);
             writer.WriteObjectValue<UntypedNode>("probabilityS", ProbabilityS);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangeRequestBuilder.cs
index a745e3e8f14..8b2b4edfdd6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Dist_Range/Binom_Dist_RangeRequestBuilder.cs
@@ -51,7 +51,7 @@ public Binom_Dist_RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist_Range.Binom_Dist_RangePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Dist_Range.Binom_Dist_RangePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvPostRequestBody.cs
index 27eec0c49c7..86e732d88dc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvPostRequestBody.cs
@@ -84,7 +84,7 @@ public Binom_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Inv.Binom_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Inv.Binom_InvPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("probabilityS", ProbabilityS);
             writer.WriteObjectValue<UntypedNode>("trials", Trials);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvRequestBuilder.cs
index 72bfcef0bc5..60010820dd5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Binom_Inv/Binom_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public Binom_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Inv.Binom_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Binom_Inv.Binom_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandPostRequestBody.cs
index 6771a004f82..3ec01ad547e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandPostRequestBody.cs
@@ -68,7 +68,7 @@ public BitandPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitand.BitandPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitand.BitandPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number1", Number1);
             writer.WriteObjectValue<UntypedNode>("number2", Number2);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandRequestBuilder.cs
index 6aa041ea191..5f82ed2477c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitand/BitandRequestBuilder.cs
@@ -51,7 +51,7 @@ public BitandRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitand.BitandPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitand.BitandPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftPostRequestBody.cs
index 321298c5c9a..3ec7ef52a3e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftPostRequestBody.cs
@@ -68,7 +68,7 @@ public BitlshiftPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitlshift.BitlshiftPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitlshift.BitlshiftPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("shiftAmount", ShiftAmount);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftRequestBuilder.cs
index 0f05f0f4848..13b68b3cacc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitlshift/BitlshiftRequestBuilder.cs
@@ -51,7 +51,7 @@ public BitlshiftRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitlshift.BitlshiftPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitlshift.BitlshiftPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorPostRequestBody.cs
index b82bd9f9c94..7b2569ff7c3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorPostRequestBody.cs
@@ -68,7 +68,7 @@ public BitorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitor.BitorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitor.BitorPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number1", Number1);
             writer.WriteObjectValue<UntypedNode>("number2", Number2);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorRequestBuilder.cs
index f8715746042..c8726ceeb1e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitor/BitorRequestBuilder.cs
@@ -51,7 +51,7 @@ public BitorRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitor.BitorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitor.BitorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftPostRequestBody.cs
index b2b6683116d..d2611c3c03f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftPostRequestBody.cs
@@ -68,7 +68,7 @@ public BitrshiftPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitrshift.BitrshiftPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitrshift.BitrshiftPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("shiftAmount", ShiftAmount);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftRequestBuilder.cs
index e2477282f49..2dd8d8c946f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitrshift/BitrshiftRequestBuilder.cs
@@ -51,7 +51,7 @@ public BitrshiftRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitrshift.BitrshiftPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitrshift.BitrshiftPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorPostRequestBody.cs
index 2bf41dd18b6..8669194e905 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorPostRequestBody.cs
@@ -68,7 +68,7 @@ public BitxorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitxor.BitxorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitxor.BitxorPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number1", Number1);
             writer.WriteObjectValue<UntypedNode>("number2", Number2);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorRequestBuilder.cs
index a4082f33641..b9f7cf55114 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Bitxor/BitxorRequestBuilder.cs
@@ -51,7 +51,7 @@ public BitxorRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitxor.BitxorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Bitxor.BitxorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathPostRequestBody.cs
index 5c44162c968..f322d60b1f1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathPostRequestBody.cs
@@ -84,7 +84,7 @@ public Ceiling_MathPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Math.Ceiling_MathPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Math.Ceiling_MathPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("mode", Mode);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathRequestBuilder.cs
index 7a0bbe1d594..b34e081f8b6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Math/Ceiling_MathRequestBuilder.cs
@@ -51,7 +51,7 @@ public Ceiling_MathRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Math.Ceiling_MathPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Math.Ceiling_MathPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PrecisePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PrecisePostRequestBody.cs
index 7ab28582052..f11635aee97 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PrecisePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PrecisePostRequestBody.cs
@@ -68,7 +68,7 @@ public Ceiling_PrecisePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Precise.Ceiling_PrecisePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Precise.Ceiling_PrecisePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PreciseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PreciseRequestBuilder.cs
index 27a9c33a106..80e3f432817 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PreciseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ceiling_Precise/Ceiling_PreciseRequestBuilder.cs
@@ -51,7 +51,7 @@ public Ceiling_PreciseRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Precise.Ceiling_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ceiling_Precise.Ceiling_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharPostRequestBody.cs
index 21ed7eec5c9..38c32512b19 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharPostRequestBody.cs
@@ -52,7 +52,7 @@ public CharPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CharNamespace.CharPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CharNamespace.CharPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharRequestBuilder.cs
index 72e92ab51f9..cea7af64182 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CharNamespace/CharRequestBuilder.cs
@@ -51,7 +51,7 @@ public CharRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CharNamespace.CharPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CharNamespace.CharPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistPostRequestBody.cs
index eb63995074d..bfae97c9427 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistPostRequestBody.cs
@@ -84,7 +84,7 @@ public ChiSq_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist.ChiSq_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist.ChiSq_DistPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistRequestBuilder.cs
index d345d93091b..90a3a2c99ec 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist/ChiSq_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public ChiSq_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist.ChiSq_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist.ChiSq_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTPostRequestBody.cs
index 93c905ace53..82f5caeb950 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTPostRequestBody.cs
@@ -68,7 +68,7 @@ public ChiSq_Dist_RTPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist_RT.ChiSq_Dist_RTPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist_RT.ChiSq_Dist_RTPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTRequestBuilder.cs
index 4c32896a51f..be47ca59643 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Dist_RT/ChiSq_Dist_RTRequestBuilder.cs
@@ -51,7 +51,7 @@ public ChiSq_Dist_RTRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist_RT.ChiSq_Dist_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Dist_RT.ChiSq_Dist_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvPostRequestBody.cs
index 7c1814dbdeb..e17a361410f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvPostRequestBody.cs
@@ -68,7 +68,7 @@ public ChiSq_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv.ChiSq_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv.ChiSq_InvPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvRequestBuilder.cs
index d7f75b71a81..5880fa231fd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv/ChiSq_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public ChiSq_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv.ChiSq_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv.ChiSq_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTPostRequestBody.cs
index 3accdb98828..bea01b755b4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTPostRequestBody.cs
@@ -68,7 +68,7 @@ public ChiSq_Inv_RTPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv_RT.ChiSq_Inv_RTPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv_RT.ChiSq_Inv_RTPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTRequestBuilder.cs
index f3ca36bf4f6..214cd81c7dc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ChiSq_Inv_RT/ChiSq_Inv_RTRequestBuilder.cs
@@ -51,7 +51,7 @@ public ChiSq_Inv_RTRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv_RT.ChiSq_Inv_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ChiSq_Inv_RT.ChiSq_Inv_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChoosePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChoosePostRequestBody.cs
index a3d59e933c2..3203cbf1c5f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChoosePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChoosePostRequestBody.cs
@@ -68,7 +68,7 @@ public ChoosePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Choose.ChoosePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Choose.ChoosePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("indexNum", IndexNum);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChooseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChooseRequestBuilder.cs
index 2161c27b0a1..3694ab3d1d2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChooseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Choose/ChooseRequestBuilder.cs
@@ -51,7 +51,7 @@ public ChooseRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Choose.ChoosePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Choose.ChoosePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanPostRequestBody.cs
index af0b8121d2e..05e4d266fcc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanPostRequestBody.cs
@@ -52,7 +52,7 @@ public CleanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Clean.CleanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Clean.CleanPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanRequestBuilder.cs
index 2f84daca699..4d1880483b5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Clean/CleanRequestBuilder.cs
@@ -51,7 +51,7 @@ public CleanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Clean.CleanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Clean.CleanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodePostRequestBody.cs
index bcc663bad97..a8b7a233dca 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodePostRequestBody.cs
@@ -52,7 +52,7 @@ public CodePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Code.CodePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Code.CodePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodeRequestBuilder.cs
index db8dfdd89bc..0864c408b55 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Code/CodeRequestBuilder.cs
@@ -51,7 +51,7 @@ public CodeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Code.CodePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Code.CodePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsPostRequestBody.cs
index 41e1a276fba..fb8ffc9c581 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsPostRequestBody.cs
@@ -52,7 +52,7 @@ public ColumnsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Columns.ColumnsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Columns.ColumnsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsRequestBuilder.cs
index 79331b960db..9590938f3a2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Columns/ColumnsRequestBuilder.cs
@@ -51,7 +51,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Columns.ColumnsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Columns.ColumnsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinPostRequestBody.cs
index 02d1a15bdb1..637807a5216 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinPostRequestBody.cs
@@ -68,7 +68,7 @@ public CombinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combin.CombinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combin.CombinPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numberChosen", NumberChosen);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinRequestBuilder.cs
index 1664d6eb6de..edb7a2f528c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combin/CombinRequestBuilder.cs
@@ -51,7 +51,7 @@ public CombinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combin.CombinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combin.CombinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaPostRequestBody.cs
index f745dd055ec..1dcfc679e73 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaPostRequestBody.cs
@@ -68,7 +68,7 @@ public CombinaPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combina.CombinaPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combina.CombinaPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numberChosen", NumberChosen);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaRequestBuilder.cs
index 4024ca7f324..3990d2d6812 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Combina/CombinaRequestBuilder.cs
@@ -51,7 +51,7 @@ public CombinaRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combina.CombinaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Combina.CombinaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexPostRequestBody.cs
index d3f51692b43..ef8e2825a40 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexPostRequestBody.cs
@@ -84,7 +84,7 @@ public ComplexPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Complex.ComplexPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Complex.ComplexPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("iNum", INum);
             writer.WriteObjectValue<UntypedNode>("realNum", RealNum);
             writer.WriteObjectValue<UntypedNode>("suffix", Suffix);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexRequestBuilder.cs
index d6222f8eff6..bbba78711fa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Complex/ComplexRequestBuilder.cs
@@ -51,7 +51,7 @@ public ComplexRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Complex.ComplexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Complex.ComplexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenatePostRequestBody.cs
index 6fc6927b209..fc1040dc100 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenatePostRequestBody.cs
@@ -52,7 +52,7 @@ public ConcatenatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Concatenate.ConcatenatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Concatenate.ConcatenatePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenateRequestBuilder.cs
index bec9edec956..036e5ad824a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Concatenate/ConcatenateRequestBuilder.cs
@@ -51,7 +51,7 @@ public ConcatenateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Concatenate.ConcatenatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Concatenate.ConcatenatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormPostRequestBody.cs
index 2ddd5582e0c..a0aac2bb496 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormPostRequestBody.cs
@@ -84,7 +84,7 @@ public Confidence_NormPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_Norm.Confidence_NormPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_Norm.Confidence_NormPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("size", Size);
             writer.WriteObjectValue<UntypedNode>("standardDev", StandardDev);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormRequestBuilder.cs
index f297e7c5c0e..099c37ca7a0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_Norm/Confidence_NormRequestBuilder.cs
@@ -51,7 +51,7 @@ public Confidence_NormRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_Norm.Confidence_NormPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_Norm.Confidence_NormPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TPostRequestBody.cs
index 87a30978d5d..86d486aeb9a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TPostRequestBody.cs
@@ -84,7 +84,7 @@ public Confidence_TPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_T.Confidence_TPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_T.Confidence_TPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("size", Size);
             writer.WriteObjectValue<UntypedNode>("standardDev", StandardDev);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TRequestBuilder.cs
index 61abddac816..a1fde8e5af4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Confidence_T/Confidence_TRequestBuilder.cs
@@ -51,7 +51,7 @@ public Confidence_TRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_T.Confidence_TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Confidence_T.Confidence_TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertPostRequestBody.cs
index 53bf6332561..368f3a5c059 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertPostRequestBody.cs
@@ -84,7 +84,7 @@ public ConvertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ConvertNamespace.ConvertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ConvertNamespace.ConvertPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fromUnit", FromUnit);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("toUnit", ToUnit);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertRequestBuilder.cs
index d45d2e3af6d..595692da5e8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ConvertNamespace/ConvertRequestBuilder.cs
@@ -51,7 +51,7 @@ public ConvertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ConvertNamespace.ConvertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ConvertNamespace.ConvertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosPostRequestBody.cs
index ad6ca76ca5c..f0eb9aee37b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosPostRequestBody.cs
@@ -52,7 +52,7 @@ public CosPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cos.CosPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cos.CosPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosRequestBuilder.cs
index 640be258fd1..4d6e8fde990 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cos/CosRequestBuilder.cs
@@ -51,7 +51,7 @@ public CosRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cos.CosPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cos.CosPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshPostRequestBody.cs
index a38086d4c20..315d6590276 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshPostRequestBody.cs
@@ -52,7 +52,7 @@ public CoshPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cosh.CoshPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cosh.CoshPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshRequestBuilder.cs
index 994962bb746..efd989cc6dc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cosh/CoshRequestBuilder.cs
@@ -51,7 +51,7 @@ public CoshRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cosh.CoshPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cosh.CoshPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotPostRequestBody.cs
index 8c5441afa99..382acc64a66 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotPostRequestBody.cs
@@ -52,7 +52,7 @@ public CotPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cot.CotPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cot.CotPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotRequestBuilder.cs
index f61ce581fd3..0be104df729 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Cot/CotRequestBuilder.cs
@@ -51,7 +51,7 @@ public CotRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cot.CotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Cot.CotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothPostRequestBody.cs
index 05bbb609341..9cf3b3049e1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothPostRequestBody.cs
@@ -52,7 +52,7 @@ public CothPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Coth.CothPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Coth.CothPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothRequestBuilder.cs
index 41da87eea58..1e07745ee2f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Coth/CothRequestBuilder.cs
@@ -51,7 +51,7 @@ public CothRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Coth.CothPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Coth.CothPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountPostRequestBody.cs
index 14e8015b36f..43eba83b07d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountPostRequestBody.cs
@@ -52,7 +52,7 @@ public CountPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Count.CountPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Count.CountPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountRequestBuilder.cs
index 790fa9e3caf..2a8625c2b7f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Count/CountRequestBuilder.cs
@@ -51,7 +51,7 @@ public CountRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Count.CountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Count.CountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountAPostRequestBody.cs
index f7e98341a8a..5450d3591b7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountAPostRequestBody.cs
@@ -52,7 +52,7 @@ public CountAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountA.CountAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountA.CountAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountARequestBuilder.cs
index 02d8207df30..c0e9a6bf95b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountA/CountARequestBuilder.cs
@@ -51,7 +51,7 @@ public CountARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountA.CountAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountA.CountAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankPostRequestBody.cs
index b51de17c1ce..16dbc1f01db 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankPostRequestBody.cs
@@ -52,7 +52,7 @@ public CountBlankPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountBlank.CountBlankPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountBlank.CountBlankPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("range", Range);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankRequestBuilder.cs
index 746771c60c0..1822a1c8587 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountBlank/CountBlankRequestBuilder.cs
@@ -51,7 +51,7 @@ public CountBlankRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountBlank.CountBlankPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountBlank.CountBlankPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfPostRequestBody.cs
index 976c393f901..de5d1675a74 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfPostRequestBody.cs
@@ -68,7 +68,7 @@ public CountIfPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIf.CountIfPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIf.CountIfPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("range", Range);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfRequestBuilder.cs
index c7ea9f9fb20..1e73dfcdd12 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIf/CountIfRequestBuilder.cs
@@ -51,7 +51,7 @@ public CountIfRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIf.CountIfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIf.CountIfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsPostRequestBody.cs
index d5839b353f8..39878c26b51 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CountIfsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIfs.CountIfsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIfs.CountIfsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsRequestBuilder.cs
index 074e2082917..95fd9beee54 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CountIfs/CountIfsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CountIfsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIfs.CountIfsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CountIfs.CountIfsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsPostRequestBody.cs
index badd0fbc7bf..74eae8d6caa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsPostRequestBody.cs
@@ -100,7 +100,7 @@ public CoupDayBsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDayBs.CoupDayBsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDayBs.CoupDayBsPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsRequestBuilder.cs
index 91b91d21d84..3d43edc0334 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDayBs/CoupDayBsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CoupDayBsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDayBs.CoupDayBsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDayBs.CoupDayBsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysPostRequestBody.cs
index b4badcbcb55..c9d27a96334 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysPostRequestBody.cs
@@ -100,7 +100,7 @@ public CoupDaysPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDays.CoupDaysPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDays.CoupDaysPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysRequestBuilder.cs
index 418bdf4c222..a8b91372a6a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDays/CoupDaysRequestBuilder.cs
@@ -51,7 +51,7 @@ public CoupDaysRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDays.CoupDaysPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDays.CoupDaysPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcPostRequestBody.cs
index bf34370ccfa..5cef8c70884 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcPostRequestBody.cs
@@ -100,7 +100,7 @@ public CoupDaysNcPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDaysNc.CoupDaysNcPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDaysNc.CoupDaysNcPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcRequestBuilder.cs
index d487275411e..b0138d86a5a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupDaysNc/CoupDaysNcRequestBuilder.cs
@@ -51,7 +51,7 @@ public CoupDaysNcRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDaysNc.CoupDaysNcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupDaysNc.CoupDaysNcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdPostRequestBody.cs
index 0c1373a3e6f..613eef700b4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdPostRequestBody.cs
@@ -100,7 +100,7 @@ public CoupNcdPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNcd.CoupNcdPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNcd.CoupNcdPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdRequestBuilder.cs
index 1f8520e81be..6cfc6d0e667 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNcd/CoupNcdRequestBuilder.cs
@@ -51,7 +51,7 @@ public CoupNcdRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNcd.CoupNcdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNcd.CoupNcdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumPostRequestBody.cs
index cbe4f77287f..51df17f72ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumPostRequestBody.cs
@@ -100,7 +100,7 @@ public CoupNumPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNum.CoupNumPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNum.CoupNumPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumRequestBuilder.cs
index 66cee903de7..6035756d11f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupNum/CoupNumRequestBuilder.cs
@@ -51,7 +51,7 @@ public CoupNumRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNum.CoupNumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupNum.CoupNumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdPostRequestBody.cs
index c47cb4411d6..83c96bbce5a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdPostRequestBody.cs
@@ -100,7 +100,7 @@ public CoupPcdPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupPcd.CoupPcdPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupPcd.CoupPcdPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdRequestBuilder.cs
index edf81e0a465..55090890129 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CoupPcd/CoupPcdRequestBuilder.cs
@@ -51,7 +51,7 @@ public CoupPcdRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupPcd.CoupPcdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CoupPcd.CoupPcdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscPostRequestBody.cs
index 0bdda19c8a1..5523de52bf4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscPostRequestBody.cs
@@ -52,7 +52,7 @@ public CscPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csc.CscPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csc.CscPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscRequestBuilder.cs
index 833f094cca7..f24c4c747af 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csc/CscRequestBuilder.cs
@@ -51,7 +51,7 @@ public CscRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csc.CscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csc.CscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschPostRequestBody.cs
index 53eeac77b06..7e991512024 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschPostRequestBody.cs
@@ -52,7 +52,7 @@ public CschPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csch.CschPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csch.CschPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschRequestBuilder.cs
index 0af8006ff87..e767af400ec 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Csch/CschRequestBuilder.cs
@@ -51,7 +51,7 @@ public CschRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csch.CschPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Csch.CschPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtPostRequestBody.cs
index 8415559b519..0edbe9f2576 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtPostRequestBody.cs
@@ -132,7 +132,7 @@ public CumIPmtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumIPmt.CumIPmtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumIPmt.CumIPmtPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endPeriod", EndPeriod);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtRequestBuilder.cs
index 506685533ff..1ff77ca9f5d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumIPmt/CumIPmtRequestBuilder.cs
@@ -51,7 +51,7 @@ public CumIPmtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumIPmt.CumIPmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumIPmt.CumIPmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincPostRequestBody.cs
index fe3342aca14..3ab5c5e8325 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincPostRequestBody.cs
@@ -132,7 +132,7 @@ public CumPrincPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumPrinc.CumPrincPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumPrinc.CumPrincPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endPeriod", EndPeriod);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincRequestBuilder.cs
index 1d124610b0b..9605d9fa0fa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/CumPrinc/CumPrincRequestBuilder.cs
@@ -51,7 +51,7 @@ public CumPrincRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumPrinc.CumPrincPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.CumPrinc.CumPrincPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DatePostRequestBody.cs
index c50ef1ae5f8..21f5a1bbc5f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DatePostRequestBody.cs
@@ -84,7 +84,7 @@ public DatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DateNamespace.DatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DateNamespace.DatePostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("day", Day);
             writer.WriteObjectValue<UntypedNode>("month", Month);
             writer.WriteObjectValue<UntypedNode>("year", Year);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DateRequestBuilder.cs
index 18ecf9c541d..4cfd6949f11 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DateNamespace/DateRequestBuilder.cs
@@ -51,7 +51,7 @@ public DateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DateNamespace.DatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DateNamespace.DatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevaluePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevaluePostRequestBody.cs
index 7f4a279d956..ea3128f240d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevaluePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevaluePostRequestBody.cs
@@ -52,7 +52,7 @@ public DatevaluePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Datevalue.DatevaluePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Datevalue.DatevaluePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("dateText", DateText);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevalueRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevalueRequestBuilder.cs
index 16785538de8..f4edf869043 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevalueRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Datevalue/DatevalueRequestBuilder.cs
@@ -51,7 +51,7 @@ public DatevalueRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Datevalue.DatevaluePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Datevalue.DatevaluePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaveragePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaveragePostRequestBody.cs
index 280460c5444..2dcd6d103f4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaveragePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaveragePostRequestBody.cs
@@ -84,7 +84,7 @@ public DaveragePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Daverage.DaveragePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Daverage.DaveragePostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaverageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaverageRequestBuilder.cs
index 98230edf3cb..bbe07741e8e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaverageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Daverage/DaverageRequestBuilder.cs
@@ -51,7 +51,7 @@ public DaverageRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Daverage.DaveragePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Daverage.DaveragePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayPostRequestBody.cs
index 7e97b4e0e74..1cb183a15a4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayPostRequestBody.cs
@@ -52,7 +52,7 @@ public DayPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Day.DayPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Day.DayPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayRequestBuilder.cs
index c9f5fb1c0d7..7bb5cc37a46 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Day/DayRequestBuilder.cs
@@ -51,7 +51,7 @@ public DayRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Day.DayPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Day.DayPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysPostRequestBody.cs
index 1b8f2d4300f..27f9c3172c6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysPostRequestBody.cs
@@ -68,7 +68,7 @@ public DaysPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days.DaysPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days.DaysPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endDate", EndDate);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysRequestBuilder.cs
index a755e5ced5a..1de41a0f43e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days/DaysRequestBuilder.cs
@@ -51,7 +51,7 @@ public DaysRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days.DaysPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days.DaysPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360PostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360PostRequestBody.cs
index ed79a9e115c..d626ad95f66 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360PostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360PostRequestBody.cs
@@ -84,7 +84,7 @@ public Days360PostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days360.Days360PostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days360.Days360PostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endDate", EndDate);
             writer.WriteObjectValue<UntypedNode>("method", Method);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360RequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360RequestBuilder.cs
index b111fb57675..fab553cb2aa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Days360/Days360RequestBuilder.cs
@@ -51,7 +51,7 @@ public Days360RequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days360.Days360PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Days360.Days360PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbPostRequestBody.cs
index 84845eaf5d3..57234d87074 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbPostRequestBody.cs
@@ -116,7 +116,7 @@ public DbPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Db.DbPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Db.DbPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cost", Cost);
             writer.WriteObjectValue<UntypedNode>("life", Life);
             writer.WriteObjectValue<UntypedNode>("month", Month);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbRequestBuilder.cs
index d6704a58c74..aee01c84b4a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Db/DbRequestBuilder.cs
@@ -51,7 +51,7 @@ public DbRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Db.DbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Db.DbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsPostRequestBody.cs
index e5581de2af2..e73234de6e1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsPostRequestBody.cs
@@ -52,7 +52,7 @@ public DbcsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dbcs.DbcsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dbcs.DbcsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsRequestBuilder.cs
index ff4f1b857e5..134de7b988d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dbcs/DbcsRequestBuilder.cs
@@ -51,7 +51,7 @@ public DbcsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dbcs.DbcsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dbcs.DbcsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountPostRequestBody.cs
index 8f020bbc479..8d82b6f8559 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountPostRequestBody.cs
@@ -84,7 +84,7 @@ public DcountPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dcount.DcountPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dcount.DcountPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountRequestBuilder.cs
index 3a04aa16315..a4ab0973631 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dcount/DcountRequestBuilder.cs
@@ -51,7 +51,7 @@ public DcountRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dcount.DcountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dcount.DcountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountAPostRequestBody.cs
index a247ed53239..ee3526a32e7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountAPostRequestBody.cs
@@ -84,7 +84,7 @@ public DcountAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DcountA.DcountAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DcountA.DcountAPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountARequestBuilder.cs
index 9982258b8a9..aa9620c2996 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DcountA/DcountARequestBuilder.cs
@@ -51,7 +51,7 @@ public DcountARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DcountA.DcountAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DcountA.DcountAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbPostRequestBody.cs
index f5f37766603..69997d37056 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbPostRequestBody.cs
@@ -116,7 +116,7 @@ public DdbPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ddb.DdbPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ddb.DdbPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cost", Cost);
             writer.WriteObjectValue<UntypedNode>("factor", Factor);
             writer.WriteObjectValue<UntypedNode>("life", Life);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbRequestBuilder.cs
index 0a4fc9dd424..33443b3eee8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ddb/DdbRequestBuilder.cs
@@ -51,7 +51,7 @@ public DdbRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ddb.DdbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ddb.DdbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinPostRequestBody.cs
index b1ed62e816e..4d88da7233b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinPostRequestBody.cs
@@ -68,7 +68,7 @@ public Dec2BinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Bin.Dec2BinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Bin.Dec2BinPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinRequestBuilder.cs
index 7d44fdccc5e..adf9dfb7c8b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Bin/Dec2BinRequestBuilder.cs
@@ -51,7 +51,7 @@ public Dec2BinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Bin.Dec2BinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Bin.Dec2BinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexPostRequestBody.cs
index d718608a3a9..b125f6ae445 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexPostRequestBody.cs
@@ -68,7 +68,7 @@ public Dec2HexPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Hex.Dec2HexPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Hex.Dec2HexPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexRequestBuilder.cs
index b6870eb957e..5020c73c982 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Hex/Dec2HexRequestBuilder.cs
@@ -51,7 +51,7 @@ public Dec2HexRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Hex.Dec2HexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Hex.Dec2HexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctPostRequestBody.cs
index 629752de895..c4d39f502fa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctPostRequestBody.cs
@@ -68,7 +68,7 @@ public Dec2OctPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Oct.Dec2OctPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Oct.Dec2OctPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctRequestBuilder.cs
index 146c1e4f1ab..91be0722b41 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dec2Oct/Dec2OctRequestBuilder.cs
@@ -51,7 +51,7 @@ public Dec2OctRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Oct.Dec2OctPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dec2Oct.Dec2OctPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalPostRequestBody.cs
index 5f8208149f6..ee513b2bed9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalPostRequestBody.cs
@@ -68,7 +68,7 @@ public DecimalPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DecimalNamespace.DecimalPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DecimalNamespace.DecimalPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("radix", Radix);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalRequestBuilder.cs
index 7f3cce3f7ad..0bb8a535d1d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DecimalNamespace/DecimalRequestBuilder.cs
@@ -51,7 +51,7 @@ public DecimalRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DecimalNamespace.DecimalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DecimalNamespace.DecimalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesPostRequestBody.cs
index af3c1e22802..d5789be6f79 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesPostRequestBody.cs
@@ -52,7 +52,7 @@ public DegreesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Degrees.DegreesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Degrees.DegreesPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("angle", Angle);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesRequestBuilder.cs
index b9f5aa63e1a..8f26339ff6d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Degrees/DegreesRequestBuilder.cs
@@ -51,7 +51,7 @@ public DegreesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Degrees.DegreesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Degrees.DegreesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaPostRequestBody.cs
index 89988d78103..b6c9accd9a5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaPostRequestBody.cs
@@ -68,7 +68,7 @@ public DeltaPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Delta.DeltaPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Delta.DeltaPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number1", Number1);
             writer.WriteObjectValue<UntypedNode>("number2", Number2);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaRequestBuilder.cs
index 7f1705aa176..39696534881 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Delta/DeltaRequestBuilder.cs
@@ -51,7 +51,7 @@ public DeltaRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Delta.DeltaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Delta.DeltaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqPostRequestBody.cs
index 82663e950fb..f94917516a1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqPostRequestBody.cs
@@ -52,7 +52,7 @@ public DevSqPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DevSq.DevSqPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DevSq.DevSqPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqRequestBuilder.cs
index d86995eec57..75c555352aa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DevSq/DevSqRequestBuilder.cs
@@ -51,7 +51,7 @@ public DevSqRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DevSq.DevSqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DevSq.DevSqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetPostRequestBody.cs
index f8dbf52672e..30043c5bd98 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetPostRequestBody.cs
@@ -84,7 +84,7 @@ public DgetPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dget.DgetPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dget.DgetPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetRequestBuilder.cs
index e01ed499479..f532d042a53 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dget/DgetRequestBuilder.cs
@@ -51,7 +51,7 @@ public DgetRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dget.DgetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dget.DgetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscPostRequestBody.cs
index 7aecab338ee..27f6f112916 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscPostRequestBody.cs
@@ -116,7 +116,7 @@ public DiscPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Disc.DiscPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Disc.DiscPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
             writer.WriteObjectValue<UntypedNode>("pr", Pr);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscRequestBuilder.cs
index 8f6ffaf6174..2642c77837f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Disc/DiscRequestBuilder.cs
@@ -51,7 +51,7 @@ public DiscRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Disc.DiscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Disc.DiscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxPostRequestBody.cs
index db348e54c0e..70d6e750388 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxPostRequestBody.cs
@@ -84,7 +84,7 @@ public DmaxPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmax.DmaxPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmax.DmaxPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxRequestBuilder.cs
index 32160d2bd74..c780dc2e3c5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmax/DmaxRequestBuilder.cs
@@ -51,7 +51,7 @@ public DmaxRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmax.DmaxPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmax.DmaxPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminPostRequestBody.cs
index 19e185271a3..c1a65042ba5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminPostRequestBody.cs
@@ -84,7 +84,7 @@ public DminPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmin.DminPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmin.DminPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminRequestBuilder.cs
index 3d2e08aa77f..dec6405b8fb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dmin/DminRequestBuilder.cs
@@ -51,7 +51,7 @@ public DminRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmin.DminPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dmin.DminPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarPostRequestBody.cs
index 0bdb87a5af6..780476af547 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarPostRequestBody.cs
@@ -68,7 +68,7 @@ public DollarPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dollar.DollarPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dollar.DollarPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("decimals", Decimals);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarRequestBuilder.cs
index fd7214cae0d..4a171a7d2e1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dollar/DollarRequestBuilder.cs
@@ -51,7 +51,7 @@ public DollarRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dollar.DollarPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dollar.DollarPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDePostRequestBody.cs
index 82ac2cae515..1d18ecc78f6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDePostRequestBody.cs
@@ -68,7 +68,7 @@ public DollarDePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarDe.DollarDePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarDe.DollarDePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fraction", Fraction);
             writer.WriteObjectValue<UntypedNode>("fractionalDollar", FractionalDollar);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDeRequestBuilder.cs
index ffcca9c32f1..f84a2156da0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarDe/DollarDeRequestBuilder.cs
@@ -51,7 +51,7 @@ public DollarDeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarDe.DollarDePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarDe.DollarDePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrPostRequestBody.cs
index c34a727a61f..280a0d1aa92 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrPostRequestBody.cs
@@ -68,7 +68,7 @@ public DollarFrPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarFr.DollarFrPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarFr.DollarFrPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("decimalDollar", DecimalDollar);
             writer.WriteObjectValue<UntypedNode>("fraction", Fraction);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrRequestBuilder.cs
index 891d23a0e81..a4541813b29 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DollarFr/DollarFrRequestBuilder.cs
@@ -51,7 +51,7 @@ public DollarFrRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarFr.DollarFrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DollarFr.DollarFrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductPostRequestBody.cs
index f87079e0604..53f20362660 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductPostRequestBody.cs
@@ -84,7 +84,7 @@ public DproductPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dproduct.DproductPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dproduct.DproductPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductRequestBuilder.cs
index 73d30235ff5..099d06742e2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dproduct/DproductRequestBuilder.cs
@@ -51,7 +51,7 @@ public DproductRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dproduct.DproductPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dproduct.DproductPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevPostRequestBody.cs
index b19a4b718dc..e19bf1d4e25 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevPostRequestBody.cs
@@ -84,7 +84,7 @@ public DstDevPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDev.DstDevPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDev.DstDevPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevRequestBuilder.cs
index 74c52e02f76..6a8b52112b9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDev/DstDevRequestBuilder.cs
@@ -51,7 +51,7 @@ public DstDevRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDev.DstDevPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDev.DstDevPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPPostRequestBody.cs
index 3a2151471f8..69b34549541 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPPostRequestBody.cs
@@ -84,7 +84,7 @@ public DstDevPPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDevP.DstDevPPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDevP.DstDevPPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPRequestBuilder.cs
index 76a003f7176..2ff1e94a6dc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DstDevP/DstDevPRequestBuilder.cs
@@ -51,7 +51,7 @@ public DstDevPRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDevP.DstDevPPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DstDevP.DstDevPPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumPostRequestBody.cs
index a5fe357b031..ca70052e6c3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumPostRequestBody.cs
@@ -84,7 +84,7 @@ public DsumPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dsum.DsumPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dsum.DsumPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumRequestBuilder.cs
index 1c25d8e3f6d..878107aa75f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dsum/DsumRequestBuilder.cs
@@ -51,7 +51,7 @@ public DsumRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dsum.DsumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dsum.DsumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationPostRequestBody.cs
index 7854c587690..b99a8b1361d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationPostRequestBody.cs
@@ -132,7 +132,7 @@ public DurationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Duration.DurationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Duration.DurationPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("coupon", Coupon);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationRequestBuilder.cs
index 4f8d80fd1cf..72132aa0660 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Duration/DurationRequestBuilder.cs
@@ -51,7 +51,7 @@ public DurationRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Duration.DurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Duration.DurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarPostRequestBody.cs
index f6e65c2e018..758526dac0b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarPostRequestBody.cs
@@ -84,7 +84,7 @@ public DvarPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dvar.DvarPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dvar.DvarPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarRequestBuilder.cs
index 38343110601..482fca153e7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Dvar/DvarRequestBuilder.cs
@@ -51,7 +51,7 @@ public DvarRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dvar.DvarPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Dvar.DvarPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPPostRequestBody.cs
index c3f13c8c78d..054c2a7340d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPPostRequestBody.cs
@@ -84,7 +84,7 @@ public DvarPPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DvarP.DvarPPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DvarP.DvarPPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("database", Database);
             writer.WriteObjectValue<UntypedNode>("field", Field);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPRequestBuilder.cs
index b933c2ee5b1..bb4cc872bb2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/DvarP/DvarPRequestBuilder.cs
@@ -51,7 +51,7 @@ public DvarPRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DvarP.DvarPPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.DvarP.DvarPPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingPostRequestBody.cs
index beba6ca09bb..bdbb8062ebb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingPostRequestBody.cs
@@ -68,7 +68,7 @@ public Ecma_CeilingPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ecma_Ceiling.Ecma_CeilingPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ecma_Ceiling.Ecma_CeilingPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingRequestBuilder.cs
index 46d46485f10..2e7333f8258 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ecma_Ceiling/Ecma_CeilingRequestBuilder.cs
@@ -51,7 +51,7 @@ public Ecma_CeilingRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ecma_Ceiling.Ecma_CeilingPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ecma_Ceiling.Ecma_CeilingPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdatePostRequestBody.cs
index c178b9e8161..3e6973cde9b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdatePostRequestBody.cs
@@ -68,7 +68,7 @@ public EdatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Edate.EdatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Edate.EdatePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("months", Months);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdateRequestBuilder.cs
index 252eb55dc86..cdf613cef1d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Edate/EdateRequestBuilder.cs
@@ -51,7 +51,7 @@ public EdateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Edate.EdatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Edate.EdatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectPostRequestBody.cs
index c57027405e1..05f5e34e76f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectPostRequestBody.cs
@@ -68,7 +68,7 @@ public EffectPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Effect.EffectPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Effect.EffectPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("nominalRate", NominalRate);
             writer.WriteObjectValue<UntypedNode>("npery", Npery);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectRequestBuilder.cs
index 636f001412e..77a7dc1df69 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Effect/EffectRequestBuilder.cs
@@ -51,7 +51,7 @@ public EffectRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Effect.EffectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Effect.EffectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthPostRequestBody.cs
index 9c7c1c828a1..a331a93d218 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthPostRequestBody.cs
@@ -68,7 +68,7 @@ public EoMonthPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.EoMonth.EoMonthPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.EoMonth.EoMonthPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("months", Months);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthRequestBuilder.cs
index 384c70ec993..13b9c6d817f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/EoMonth/EoMonthRequestBuilder.cs
@@ -51,7 +51,7 @@ public EoMonthRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.EoMonth.EoMonthPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.EoMonth.EoMonthPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfPostRequestBody.cs
index 514561f2f1d..1cf650ad346 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfPostRequestBody.cs
@@ -68,7 +68,7 @@ public ErfPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf.ErfPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf.ErfPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("lowerLimit", LowerLimit);
             writer.WriteObjectValue<UntypedNode>("upperLimit", UpperLimit);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfRequestBuilder.cs
index f430cc1f6f6..d0513fac857 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf/ErfRequestBuilder.cs
@@ -51,7 +51,7 @@ public ErfRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf.ErfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf.ErfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCPostRequestBody.cs
index 5c3346949b3..e55a6848584 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCPostRequestBody.cs
@@ -52,7 +52,7 @@ public ErfCPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC.ErfCPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC.ErfCPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCRequestBuilder.cs
index ec5f30d1f1a..e5da036956f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC/ErfCRequestBuilder.cs
@@ -51,7 +51,7 @@ public ErfCRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC.ErfCPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC.ErfCPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PrecisePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PrecisePostRequestBody.cs
index 81074e2a81f..bf2341a68a0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PrecisePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PrecisePostRequestBody.cs
@@ -52,7 +52,7 @@ public ErfC_PrecisePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC_Precise.ErfC_PrecisePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC_Precise.ErfC_PrecisePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("X", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PreciseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PreciseRequestBuilder.cs
index 7791e55bcb9..7209139f047 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PreciseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ErfC_Precise/ErfC_PreciseRequestBuilder.cs
@@ -51,7 +51,7 @@ public ErfC_PreciseRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC_Precise.ErfC_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ErfC_Precise.ErfC_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PrecisePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PrecisePostRequestBody.cs
index 41af7f32b2f..51a8d6ecf23 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PrecisePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PrecisePostRequestBody.cs
@@ -52,7 +52,7 @@ public Erf_PrecisePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf_Precise.Erf_PrecisePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf_Precise.Erf_PrecisePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("X", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PreciseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PreciseRequestBuilder.cs
index bf0f9e8cfd8..87ded0d2cfe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PreciseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Erf_Precise/Erf_PreciseRequestBuilder.cs
@@ -51,7 +51,7 @@ public Erf_PreciseRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf_Precise.Erf_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Erf_Precise.Erf_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypePostRequestBody.cs
index d87bdc9f867..d80087dabc7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypePostRequestBody.cs
@@ -52,7 +52,7 @@ public Error_TypePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Error_Type.Error_TypePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Error_Type.Error_TypePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("errorVal", ErrorVal);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypeRequestBuilder.cs
index 7ded26d89b3..41ad4f06a30 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Error_Type/Error_TypeRequestBuilder.cs
@@ -51,7 +51,7 @@ public Error_TypeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Error_Type.Error_TypePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Error_Type.Error_TypePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenPostRequestBody.cs
index 483a5a9dae0..2e126a17ab3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenPostRequestBody.cs
@@ -52,7 +52,7 @@ public EvenPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Even.EvenPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Even.EvenPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenRequestBuilder.cs
index 9eda57f37d2..9b84bacc859 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Even/EvenRequestBuilder.cs
@@ -51,7 +51,7 @@ public EvenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Even.EvenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Even.EvenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactPostRequestBody.cs
index bd557ad36ec..3f5f188a144 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactPostRequestBody.cs
@@ -68,7 +68,7 @@ public ExactPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exact.ExactPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exact.ExactPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text1", Text1);
             writer.WriteObjectValue<UntypedNode>("text2", Text2);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactRequestBuilder.cs
index dbae89a455b..ec04f889dff 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exact/ExactRequestBuilder.cs
@@ -51,7 +51,7 @@ public ExactRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exact.ExactPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exact.ExactPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpPostRequestBody.cs
index c6fa59020d4..fa308949267 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpPostRequestBody.cs
@@ -52,7 +52,7 @@ public ExpPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exp.ExpPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exp.ExpPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpRequestBuilder.cs
index 18276f539fb..b2c983d16e0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Exp/ExpRequestBuilder.cs
@@ -51,7 +51,7 @@ public ExpRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exp.ExpPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Exp.ExpPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistPostRequestBody.cs
index 20a66719236..346233be4ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistPostRequestBody.cs
@@ -84,7 +84,7 @@ public Expon_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Expon_Dist.Expon_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Expon_Dist.Expon_DistPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("lambda", Lambda);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistRequestBuilder.cs
index a5b01b5767e..d95c6e13830 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Expon_Dist/Expon_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Expon_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Expon_Dist.Expon_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Expon_Dist.Expon_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistPostRequestBody.cs
index f60bd360f0a..87f5028de1f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistPostRequestBody.cs
@@ -100,7 +100,7 @@ public F_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist.F_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist.F_DistPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("degFreedom1", DegFreedom1);
             writer.WriteObjectValue<UntypedNode>("degFreedom2", DegFreedom2);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistRequestBuilder.cs
index 2d02b869ea8..2826deb39fb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist/F_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public F_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist.F_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist.F_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTPostRequestBody.cs
index 1de20378677..780a4b14220 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTPostRequestBody.cs
@@ -84,7 +84,7 @@ public F_Dist_RTPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist_RT.F_Dist_RTPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist_RT.F_Dist_RTPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom1", DegFreedom1);
             writer.WriteObjectValue<UntypedNode>("degFreedom2", DegFreedom2);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTRequestBuilder.cs
index ef867f6c30b..13b37291fbf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Dist_RT/F_Dist_RTRequestBuilder.cs
@@ -51,7 +51,7 @@ public F_Dist_RTRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist_RT.F_Dist_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Dist_RT.F_Dist_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvPostRequestBody.cs
index 4d9e3e841a8..520b6983855 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvPostRequestBody.cs
@@ -84,7 +84,7 @@ public F_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv.F_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv.F_InvPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom1", DegFreedom1);
             writer.WriteObjectValue<UntypedNode>("degFreedom2", DegFreedom2);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvRequestBuilder.cs
index 46ab6589e50..96355b33c1b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv/F_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public F_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv.F_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv.F_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTPostRequestBody.cs
index efd1dcab407..4fa024ca8a5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTPostRequestBody.cs
@@ -84,7 +84,7 @@ public F_Inv_RTPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv_RT.F_Inv_RTPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv_RT.F_Inv_RTPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom1", DegFreedom1);
             writer.WriteObjectValue<UntypedNode>("degFreedom2", DegFreedom2);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTRequestBuilder.cs
index 7c9e51df2f2..fb758f01264 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/F_Inv_RT/F_Inv_RTRequestBuilder.cs
@@ -51,7 +51,7 @@ public F_Inv_RTRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv_RT.F_Inv_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.F_Inv_RT.F_Inv_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactPostRequestBody.cs
index 3d894a672dc..7f48cd1e907 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactPostRequestBody.cs
@@ -52,7 +52,7 @@ public FactPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fact.FactPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fact.FactPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactRequestBuilder.cs
index 593153c4e48..7f54d8e2dc9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fact/FactRequestBuilder.cs
@@ -51,7 +51,7 @@ public FactRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fact.FactPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fact.FactPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoublePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoublePostRequestBody.cs
index 13900a13f34..65869b9d774 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoublePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoublePostRequestBody.cs
@@ -52,7 +52,7 @@ public FactDoublePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FactDouble.FactDoublePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FactDouble.FactDoublePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoubleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoubleRequestBuilder.cs
index c7488aee34b..3a11c7348f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoubleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FactDouble/FactDoubleRequestBuilder.cs
@@ -51,7 +51,7 @@ public FactDoubleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FactDouble.FactDoublePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FactDouble.FactDoublePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindPostRequestBody.cs
index 08cb4bf0303..61c90d861ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindPostRequestBody.cs
@@ -84,7 +84,7 @@ public FindPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Find.FindPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Find.FindPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("findText", FindText);
             writer.WriteObjectValue<UntypedNode>("startNum", StartNum);
             writer.WriteObjectValue<UntypedNode>("withinText", WithinText);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindRequestBuilder.cs
index a69b4997d69..e9684a879ae 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Find/FindRequestBuilder.cs
@@ -51,7 +51,7 @@ public FindRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Find.FindPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Find.FindPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBPostRequestBody.cs
index e115d1eadb0..8091cf08b13 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBPostRequestBody.cs
@@ -84,7 +84,7 @@ public FindBPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FindB.FindBPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FindB.FindBPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("findText", FindText);
             writer.WriteObjectValue<UntypedNode>("startNum", StartNum);
             writer.WriteObjectValue<UntypedNode>("withinText", WithinText);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBRequestBuilder.cs
index 6f865269ecd..712b1e59dab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FindB/FindBRequestBuilder.cs
@@ -51,7 +51,7 @@ public FindBRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FindB.FindBPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FindB.FindBPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherPostRequestBody.cs
index db018a705b0..b463bbc5b5e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherPostRequestBody.cs
@@ -52,7 +52,7 @@ public FisherPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fisher.FisherPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fisher.FisherPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherRequestBuilder.cs
index be8da039d86..0066623cc43 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fisher/FisherRequestBuilder.cs
@@ -51,7 +51,7 @@ public FisherRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fisher.FisherPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fisher.FisherPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvPostRequestBody.cs
index e790595eb80..36601725e04 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvPostRequestBody.cs
@@ -52,7 +52,7 @@ public FisherInvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FisherInv.FisherInvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FisherInv.FisherInvPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("y", Y);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvRequestBuilder.cs
index 8961f125c3e..bd2137d38fc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FisherInv/FisherInvRequestBuilder.cs
@@ -51,7 +51,7 @@ public FisherInvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FisherInv.FisherInvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.FisherInv.FisherInvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedPostRequestBody.cs
index 07981961155..7f09cbabd5e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedPostRequestBody.cs
@@ -84,7 +84,7 @@ public FixedPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fixed.FixedPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fixed.FixedPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("decimals", Decimals);
             writer.WriteObjectValue<UntypedNode>("noCommas", NoCommas);
             writer.WriteObjectValue<UntypedNode>("number", Number);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedRequestBuilder.cs
index bdb4ce2fad5..8d0337055b9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fixed/FixedRequestBuilder.cs
@@ -51,7 +51,7 @@ public FixedRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fixed.FixedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fixed.FixedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathPostRequestBody.cs
index fcb80a6ee56..e98c0a29c3c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathPostRequestBody.cs
@@ -84,7 +84,7 @@ public Floor_MathPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Math.Floor_MathPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Math.Floor_MathPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("mode", Mode);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathRequestBuilder.cs
index 283bd734c88..6cccb0d0a85 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Math/Floor_MathRequestBuilder.cs
@@ -51,7 +51,7 @@ public Floor_MathRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Math.Floor_MathPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Math.Floor_MathPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PrecisePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PrecisePostRequestBody.cs
index 9a9b8257937..38304ba7a0e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PrecisePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PrecisePostRequestBody.cs
@@ -68,7 +68,7 @@ public Floor_PrecisePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Precise.Floor_PrecisePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Precise.Floor_PrecisePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PreciseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PreciseRequestBuilder.cs
index e4dd584467f..0dd900c7ab3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PreciseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Floor_Precise/Floor_PreciseRequestBuilder.cs
@@ -51,7 +51,7 @@ public Floor_PreciseRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Precise.Floor_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Floor_Precise.Floor_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FunctionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FunctionsRequestBuilder.cs
index ac3b5231fba..8ff46185a3b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FunctionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/FunctionsRequestBuilder.cs
@@ -2292,7 +2292,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctions> PatchAsync(global::Microsoft.Graph.Models.WorkbookFunctions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -2353,7 +2353,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookFunctions body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvPostRequestBody.cs
index c9d3153644f..00efc87db61 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvPostRequestBody.cs
@@ -116,7 +116,7 @@ public FvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fv.FvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fv.FvPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("pmt", Pmt);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvRequestBuilder.cs
index 6311a0f8eb7..43503319648 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fv/FvRequestBuilder.cs
@@ -51,7 +51,7 @@ public FvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fv.FvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fv.FvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvschedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvschedulePostRequestBody.cs
index 1b3f54550c9..3070d3183e6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvschedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvschedulePostRequestBody.cs
@@ -68,7 +68,7 @@ public FvschedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fvschedule.FvschedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fvschedule.FvschedulePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("principal", Principal);
             writer.WriteObjectValue<UntypedNode>("schedule", Schedule);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvscheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvscheduleRequestBuilder.cs
index 4d75f9177ce..f23dfe30302 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvscheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Fvschedule/FvscheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public FvscheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fvschedule.FvschedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Fvschedule.FvschedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaPostRequestBody.cs
index e0dc8717483..1ab7a20989b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaPostRequestBody.cs
@@ -52,7 +52,7 @@ public GammaPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma.GammaPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma.GammaPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaRequestBuilder.cs
index 8a0577de1fd..bbe8f402624 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma/GammaRequestBuilder.cs
@@ -51,7 +51,7 @@ public GammaRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma.GammaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma.GammaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnPostRequestBody.cs
index 29da5d56d2b..c532d932b52 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnPostRequestBody.cs
@@ -52,7 +52,7 @@ public GammaLnPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn.GammaLnPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn.GammaLnPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnRequestBuilder.cs
index c69e4bb81c6..6c4f7d1d787 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn/GammaLnRequestBuilder.cs
@@ -51,7 +51,7 @@ public GammaLnRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn.GammaLnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn.GammaLnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PrecisePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PrecisePostRequestBody.cs
index 5e5dddbd2a3..41b0c7375f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PrecisePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PrecisePostRequestBody.cs
@@ -52,7 +52,7 @@ public GammaLn_PrecisePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn_Precise.GammaLn_PrecisePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn_Precise.GammaLn_PrecisePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PreciseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PreciseRequestBuilder.cs
index c0b7e7c7d5f..a06cd8fad20 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PreciseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GammaLn_Precise/GammaLn_PreciseRequestBuilder.cs
@@ -51,7 +51,7 @@ public GammaLn_PreciseRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn_Precise.GammaLn_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GammaLn_Precise.GammaLn_PrecisePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistPostRequestBody.cs
index 833cfd52d57..0ef49b076ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistPostRequestBody.cs
@@ -100,7 +100,7 @@ public Gamma_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Dist.Gamma_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Dist.Gamma_DistPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("beta", Beta);
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistRequestBuilder.cs
index 4fcf13d49c2..1f211ff091f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Dist/Gamma_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Gamma_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Dist.Gamma_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Dist.Gamma_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvPostRequestBody.cs
index d682e055bca..01b4aea687e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvPostRequestBody.cs
@@ -84,7 +84,7 @@ public Gamma_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Inv.Gamma_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Inv.Gamma_InvPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("beta", Beta);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvRequestBuilder.cs
index e3efe3f2e40..ace335caa5a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gamma_Inv/Gamma_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public Gamma_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Inv.Gamma_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gamma_Inv.Gamma_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussPostRequestBody.cs
index fe3955c115f..4f1c5d78a59 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussPostRequestBody.cs
@@ -52,7 +52,7 @@ public GaussPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gauss.GaussPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gauss.GaussPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussRequestBuilder.cs
index 96a7f719de8..d0911f548fc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gauss/GaussRequestBuilder.cs
@@ -51,7 +51,7 @@ public GaussRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gauss.GaussPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gauss.GaussPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdPostRequestBody.cs
index 6e9c9d4ef92..f3e893aaff4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdPostRequestBody.cs
@@ -52,7 +52,7 @@ public GcdPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gcd.GcdPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gcd.GcdPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdRequestBuilder.cs
index dd62d374cf8..8e9d3f5b3e1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Gcd/GcdRequestBuilder.cs
@@ -51,7 +51,7 @@ public GcdRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gcd.GcdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Gcd.GcdPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepPostRequestBody.cs
index 4c34cd00b1c..57eeb89f1fb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepPostRequestBody.cs
@@ -68,7 +68,7 @@ public GeStepPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeStep.GeStepPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeStep.GeStepPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("step", Step);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepRequestBuilder.cs
index 2c11a6a993b..a0da869260c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeStep/GeStepRequestBuilder.cs
@@ -51,7 +51,7 @@ public GeStepRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeStep.GeStepPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeStep.GeStepPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanPostRequestBody.cs
index 124fb831de5..c8bcd52c5d3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanPostRequestBody.cs
@@ -52,7 +52,7 @@ public GeoMeanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeoMean.GeoMeanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeoMean.GeoMeanPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanRequestBuilder.cs
index 57383febea1..c069ddd6765 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/GeoMean/GeoMeanRequestBuilder.cs
@@ -51,7 +51,7 @@ public GeoMeanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeoMean.GeoMeanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.GeoMean.GeoMeanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanPostRequestBody.cs
index 53a0b0e6d0a..dd9e6b26faf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanPostRequestBody.cs
@@ -52,7 +52,7 @@ public HarMeanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HarMean.HarMeanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HarMean.HarMeanPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanRequestBuilder.cs
index 885dae2abd1..4628b6ff7f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HarMean/HarMeanRequestBuilder.cs
@@ -51,7 +51,7 @@ public HarMeanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HarMean.HarMeanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HarMean.HarMeanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinPostRequestBody.cs
index 8cbc674bd3e..347e8eb2a50 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinPostRequestBody.cs
@@ -68,7 +68,7 @@ public Hex2BinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Bin.Hex2BinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Bin.Hex2BinPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinRequestBuilder.cs
index 3272de1b4d2..45b584cb420 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Bin/Hex2BinRequestBuilder.cs
@@ -51,7 +51,7 @@ public Hex2BinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Bin.Hex2BinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Bin.Hex2BinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecPostRequestBody.cs
index ae7fa719543..65c54cbc0f8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecPostRequestBody.cs
@@ -52,7 +52,7 @@ public Hex2DecPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Dec.Hex2DecPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Dec.Hex2DecPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecRequestBuilder.cs
index 30fc01d99e2..8278767df4e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Dec/Hex2DecRequestBuilder.cs
@@ -51,7 +51,7 @@ public Hex2DecRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Dec.Hex2DecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Dec.Hex2DecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctPostRequestBody.cs
index 4c1ba062f0e..48b525a7ef0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctPostRequestBody.cs
@@ -68,7 +68,7 @@ public Hex2OctPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Oct.Hex2OctPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Oct.Hex2OctPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctRequestBuilder.cs
index 7ec712d91ad..f758abf4376 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hex2Oct/Hex2OctRequestBuilder.cs
@@ -51,7 +51,7 @@ public Hex2OctRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Oct.Hex2OctPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hex2Oct.Hex2OctPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupPostRequestBody.cs
index b530665aa32..d5df029353b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupPostRequestBody.cs
@@ -100,7 +100,7 @@ public HlookupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hlookup.HlookupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hlookup.HlookupPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("lookupValue", LookupValue);
             writer.WriteObjectValue<UntypedNode>("rangeLookup", RangeLookup);
             writer.WriteObjectValue<UntypedNode>("rowIndexNum", RowIndexNum);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupRequestBuilder.cs
index 1861abbd372..5894bd8a9a0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hlookup/HlookupRequestBuilder.cs
@@ -51,7 +51,7 @@ public HlookupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hlookup.HlookupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hlookup.HlookupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourPostRequestBody.cs
index 08b4affad43..dedf51379f7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourPostRequestBody.cs
@@ -52,7 +52,7 @@ public HourPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hour.HourPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hour.HourPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourRequestBuilder.cs
index ce73d59d36f..a4c912fe274 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hour/HourRequestBuilder.cs
@@ -51,7 +51,7 @@ public HourRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hour.HourPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hour.HourPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistPostRequestBody.cs
index 2e8aab3a227..79323a3fdc8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistPostRequestBody.cs
@@ -116,7 +116,7 @@ public HypGeom_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HypGeom_Dist.HypGeom_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HypGeom_Dist.HypGeom_DistPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("numberPop", NumberPop);
             writer.WriteObjectValue<UntypedNode>("numberSample", NumberSample);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistRequestBuilder.cs
index 199c033e88b..7582c38d5d6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/HypGeom_Dist/HypGeom_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public HypGeom_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HypGeom_Dist.HypGeom_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.HypGeom_Dist.HypGeom_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkPostRequestBody.cs
index 256f824da5f..c7fac71dde2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkPostRequestBody.cs
@@ -68,7 +68,7 @@ public HyperlinkPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hyperlink.HyperlinkPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hyperlink.HyperlinkPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("friendlyName", FriendlyName);
             writer.WriteObjectValue<UntypedNode>("linkLocation", LinkLocation);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkRequestBuilder.cs
index 59bdbc5d46d..93db368ba71 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Hyperlink/HyperlinkRequestBuilder.cs
@@ -51,7 +51,7 @@ public HyperlinkRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hyperlink.HyperlinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Hyperlink.HyperlinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfPostRequestBody.cs
index a335717344c..33e592c766b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfPostRequestBody.cs
@@ -84,7 +84,7 @@ public IfPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.If.IfPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.If.IfPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("logicalTest", LogicalTest);
             writer.WriteObjectValue<UntypedNode>("valueIfFalse", ValueIfFalse);
             writer.WriteObjectValue<UntypedNode>("valueIfTrue", ValueIfTrue);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfRequestBuilder.cs
index c21a3c6cded..85eaa914085 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/If/IfRequestBuilder.cs
@@ -51,7 +51,7 @@ public IfRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.If.IfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.If.IfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsPostRequestBody.cs
index a20a26753a0..ceaed1c8557 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImAbsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImAbs.ImAbsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImAbs.ImAbsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsRequestBuilder.cs
index 611fd9cbe3f..a560d527c5d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImAbs/ImAbsRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImAbsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImAbs.ImAbsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImAbs.ImAbsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentPostRequestBody.cs
index 3376d310e97..7da8ae1df18 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImArgumentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImArgument.ImArgumentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImArgument.ImArgumentPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentRequestBuilder.cs
index 8837153f505..ca1406ba087 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImArgument/ImArgumentRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImArgumentRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImArgument.ImArgumentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImArgument.ImArgumentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugatePostRequestBody.cs
index 9a913f95ece..38b0064887d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugatePostRequestBody.cs
@@ -52,7 +52,7 @@ public ImConjugatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImConjugate.ImConjugatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImConjugate.ImConjugatePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugateRequestBuilder.cs
index 8d87ee072d2..a4bad310752 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImConjugate/ImConjugateRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImConjugateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImConjugate.ImConjugatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImConjugate.ImConjugatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosPostRequestBody.cs
index 14a66674a1e..e1cddb2a191 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImCosPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCos.ImCosPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCos.ImCosPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosRequestBuilder.cs
index e2f11c91ece..3f77f3c1119 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCos/ImCosRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImCosRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCos.ImCosPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCos.ImCosPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshPostRequestBody.cs
index c51a3a81873..0f47da50ee9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImCoshPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCosh.ImCoshPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCosh.ImCoshPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshRequestBuilder.cs
index 2ec64f68545..41dbcc73c14 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCosh/ImCoshRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImCoshRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCosh.ImCoshPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCosh.ImCoshPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotPostRequestBody.cs
index 16e8ba0220c..1574152fd91 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImCotPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCot.ImCotPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCot.ImCotPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotRequestBuilder.cs
index ba17a38dfd9..d1f197e0af3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCot/ImCotRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImCotRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCot.ImCotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCot.ImCotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscPostRequestBody.cs
index 99dce9361a4..744e172f1ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImCscPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsc.ImCscPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsc.ImCscPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscRequestBuilder.cs
index db6cfa2c59e..e9cc212fc35 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsc/ImCscRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImCscRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsc.ImCscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsc.ImCscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschPostRequestBody.cs
index fead379f2a6..486679ba56d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImCschPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsch.ImCschPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsch.ImCschPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschRequestBuilder.cs
index 2b0a77dadfd..78db9ad2990 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImCsch/ImCschRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImCschRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsch.ImCschPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImCsch.ImCschPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivPostRequestBody.cs
index 32950ff457a..0820e618b32 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivPostRequestBody.cs
@@ -68,7 +68,7 @@ public ImDivPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImDiv.ImDivPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImDiv.ImDivPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber1", Inumber1);
             writer.WriteObjectValue<UntypedNode>("inumber2", Inumber2);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivRequestBuilder.cs
index 93992dbea0c..8d2079f96ac 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImDiv/ImDivRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImDivRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImDiv.ImDivPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImDiv.ImDivPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpPostRequestBody.cs
index 32d4cd986d5..0517538333b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImExpPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImExp.ImExpPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImExp.ImExpPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpRequestBuilder.cs
index 207672114a1..c3c7de75f95 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImExp/ImExpRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImExpRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImExp.ImExpPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImExp.ImExpPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnPostRequestBody.cs
index 27cacb26e55..dddd810bde7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImLnPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLn.ImLnPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLn.ImLnPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnRequestBuilder.cs
index c7b5f316a07..328655f93d0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLn/ImLnRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImLnRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLn.ImLnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLn.ImLnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10PostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10PostRequestBody.cs
index c314febd300..0a9430673b6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10PostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10PostRequestBody.cs
@@ -52,7 +52,7 @@ public ImLog10PostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog10.ImLog10PostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog10.ImLog10PostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10RequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10RequestBuilder.cs
index 71946bc066c..cf6e219a058 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog10/ImLog10RequestBuilder.cs
@@ -51,7 +51,7 @@ public ImLog10RequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog10.ImLog10PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog10.ImLog10PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2PostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2PostRequestBody.cs
index 985edd64d66..8ac768d4fd3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2PostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2PostRequestBody.cs
@@ -52,7 +52,7 @@ public ImLog2PostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog2.ImLog2PostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog2.ImLog2PostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2RequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2RequestBuilder.cs
index 1fa0cafab22..7ef90080132 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImLog2/ImLog2RequestBuilder.cs
@@ -51,7 +51,7 @@ public ImLog2RequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog2.ImLog2PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImLog2.ImLog2PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerPostRequestBody.cs
index 5987200f023..ae89b5dad24 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerPostRequestBody.cs
@@ -68,7 +68,7 @@ public ImPowerPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImPower.ImPowerPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImPower.ImPowerPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerRequestBuilder.cs
index bc980152f4c..9ab74913794 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImPower/ImPowerRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImPowerRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImPower.ImPowerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImPower.ImPowerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductPostRequestBody.cs
index 2e59092aabe..927e8806b25 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImProductPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImProduct.ImProductPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImProduct.ImProductPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductRequestBuilder.cs
index 5d77a8cc97a..7822f6accb3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImProduct/ImProductRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImProductRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImProduct.ImProductPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImProduct.ImProductPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealPostRequestBody.cs
index 360c2dbca7c..d4e2bd319f7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImRealPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImReal.ImRealPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImReal.ImRealPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealRequestBuilder.cs
index 9e1bb36d672..8d186bf1816 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImReal/ImRealRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImRealRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImReal.ImRealPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImReal.ImRealPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecPostRequestBody.cs
index 28c9c89760c..4547d6d59e6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImSecPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSec.ImSecPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSec.ImSecPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecRequestBuilder.cs
index a8328ef2612..9a391444be3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSec/ImSecRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImSecRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSec.ImSecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSec.ImSecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechPostRequestBody.cs
index fad392a33cc..cbb3df0679a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImSechPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSech.ImSechPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSech.ImSechPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechRequestBuilder.cs
index 985a79c8f1d..2826f93698b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSech/ImSechRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImSechRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSech.ImSechPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSech.ImSechPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinPostRequestBody.cs
index e275175b04c..d256e4db2a3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImSinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSin.ImSinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSin.ImSinPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinRequestBuilder.cs
index 447ab3f1d4b..47096bdb399 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSin/ImSinRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImSinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSin.ImSinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSin.ImSinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhPostRequestBody.cs
index 26d08b2e24c..ad88d62be8e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImSinhPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSinh.ImSinhPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSinh.ImSinhPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhRequestBuilder.cs
index 5bdc2b864e5..9085d33e0d6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSinh/ImSinhRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImSinhRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSinh.ImSinhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSinh.ImSinhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtPostRequestBody.cs
index 062218f40fb..4876b36fff9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImSqrtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSqrt.ImSqrtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSqrt.ImSqrtPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtRequestBuilder.cs
index 78b0763ec38..23d960a0e84 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSqrt/ImSqrtRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImSqrtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSqrt.ImSqrtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSqrt.ImSqrtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubPostRequestBody.cs
index ae572ca6348..40ee43b290e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubPostRequestBody.cs
@@ -68,7 +68,7 @@ public ImSubPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSub.ImSubPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSub.ImSubPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber1", Inumber1);
             writer.WriteObjectValue<UntypedNode>("inumber2", Inumber2);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubRequestBuilder.cs
index 9fb17f7b4cc..d5699fe3846 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSub/ImSubRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImSubRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSub.ImSubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSub.ImSubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumPostRequestBody.cs
index 4fbb7f903e3..3afef0d8638 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImSumPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSum.ImSumPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSum.ImSumPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumRequestBuilder.cs
index 0af6bed70be..f34860285e3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImSum/ImSumRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImSumRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSum.ImSumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImSum.ImSumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanPostRequestBody.cs
index a77e681428c..10d0880242c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImTanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImTan.ImTanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImTan.ImTanPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanRequestBuilder.cs
index 424397cedbc..568608a4bfb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ImTan/ImTanRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImTanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImTan.ImTanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ImTan.ImTanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryPostRequestBody.cs
index 644154c41ab..c2104ca421f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryPostRequestBody.cs
@@ -52,7 +52,7 @@ public ImaginaryPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Imaginary.ImaginaryPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Imaginary.ImaginaryPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("inumber", Inumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryRequestBuilder.cs
index efec1207981..aa71703fbdf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Imaginary/ImaginaryRequestBuilder.cs
@@ -51,7 +51,7 @@ public ImaginaryRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Imaginary.ImaginaryPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Imaginary.ImaginaryPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntPostRequestBody.cs
index 1a3039fe318..0810fbb806c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntPostRequestBody.cs
@@ -52,7 +52,7 @@ public IntPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Int.IntPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Int.IntPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntRequestBuilder.cs
index 9a8eac3e1cf..23131a2592b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Int/IntRequestBuilder.cs
@@ -51,7 +51,7 @@ public IntRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Int.IntPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Int.IntPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRatePostRequestBody.cs
index 29b221de068..cdbdca572ee 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRatePostRequestBody.cs
@@ -116,7 +116,7 @@ public IntRatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IntRate.IntRatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IntRate.IntRatePostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("investment", Investment);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRateRequestBuilder.cs
index cab14c67377..31c93c86c1d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IntRate/IntRateRequestBuilder.cs
@@ -51,7 +51,7 @@ public IntRateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IntRate.IntRatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IntRate.IntRatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtPostRequestBody.cs
index c563c38d9ea..ce04cac063a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtPostRequestBody.cs
@@ -132,7 +132,7 @@ public IpmtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ipmt.IpmtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ipmt.IpmtPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("per", Per);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtRequestBuilder.cs
index 35bac4bd1d4..03ea3603b17 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ipmt/IpmtRequestBuilder.cs
@@ -51,7 +51,7 @@ public IpmtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ipmt.IpmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ipmt.IpmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrPostRequestBody.cs
index 37b546a5a63..c00c6bb0772 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrPostRequestBody.cs
@@ -68,7 +68,7 @@ public IrrPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Irr.IrrPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Irr.IrrPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("guess", Guess);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrRequestBuilder.cs
index a88690f6006..b0559cd723b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Irr/IrrRequestBuilder.cs
@@ -51,7 +51,7 @@ public IrrRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Irr.IrrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Irr.IrrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrPostRequestBody.cs
index 8404e3222cb..ca5a866dcd4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsErrPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsErr.IsErrPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsErr.IsErrPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrRequestBuilder.cs
index 726b65f739c..4c7dcf53ab8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsErr/IsErrRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsErrRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsErr.IsErrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsErr.IsErrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorPostRequestBody.cs
index c5262937a48..c122b025172 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsErrorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsError.IsErrorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsError.IsErrorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorRequestBuilder.cs
index b55e7381959..f8b072f07ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsError/IsErrorRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsErrorRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsError.IsErrorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsError.IsErrorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenPostRequestBody.cs
index f2323d06161..7b8e8b8770b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsEvenPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsEven.IsEvenPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsEven.IsEvenPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenRequestBuilder.cs
index 51f7c2508cc..f288015ebbe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsEven/IsEvenRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsEvenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsEven.IsEvenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsEven.IsEvenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaPostRequestBody.cs
index 23a88453838..0a773660cf4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsFormulaPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsFormula.IsFormulaPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsFormula.IsFormulaPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("reference", Reference);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaRequestBuilder.cs
index 4840ae86c3e..f7faf2ba1c8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsFormula/IsFormulaRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsFormulaRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsFormula.IsFormulaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsFormula.IsFormulaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalPostRequestBody.cs
index 78ac4bae7dd..9fa4a9b8b56 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsLogicalPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsLogical.IsLogicalPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsLogical.IsLogicalPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalRequestBuilder.cs
index 040c61c96aa..99dca840458 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsLogical/IsLogicalRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsLogicalRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsLogical.IsLogicalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsLogical.IsLogicalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNAPostRequestBody.cs
index a40ef8c7839..2e92b1c93f9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNAPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsNAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNA.IsNAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNA.IsNAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNARequestBuilder.cs
index e1e17f13f4c..d524db4349e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNA/IsNARequestBuilder.cs
@@ -51,7 +51,7 @@ public IsNARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNA.IsNAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNA.IsNAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextPostRequestBody.cs
index 836d95b2412..591beb029a9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsNonTextPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNonText.IsNonTextPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNonText.IsNonTextPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextRequestBuilder.cs
index d082137df44..187730bad54 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNonText/IsNonTextRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsNonTextRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNonText.IsNonTextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNonText.IsNonTextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberPostRequestBody.cs
index c670867233a..01072bc0f55 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsNumberPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNumber.IsNumberPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNumber.IsNumberPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberRequestBuilder.cs
index aaa561935bd..a879e5b4bf9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsNumber/IsNumberRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsNumberRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNumber.IsNumberPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsNumber.IsNumberPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddPostRequestBody.cs
index efabc046b3b..0c8c85f247c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsOddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsOdd.IsOddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsOdd.IsOddPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddRequestBuilder.cs
index 91f273be74f..dc93e81a5b2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsOdd/IsOddRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsOddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsOdd.IsOddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsOdd.IsOddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextPostRequestBody.cs
index a19539b1640..70c8634c234 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsTextPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsText.IsTextPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsText.IsTextPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextRequestBuilder.cs
index 3d181c026b4..1e25f4f74e6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsText/IsTextRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsTextRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsText.IsTextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsText.IsTextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumPostRequestBody.cs
index 2ce5b422e84..1160b3a9fc5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsoWeekNumPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsoWeekNum.IsoWeekNumPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsoWeekNum.IsoWeekNumPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("date", Date);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumRequestBuilder.cs
index 8703463a973..453851f2b2a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/IsoWeekNum/IsoWeekNumRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsoWeekNumRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsoWeekNum.IsoWeekNumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.IsoWeekNum.IsoWeekNumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingPostRequestBody.cs
index ca80cd7e695..54ed9e99493 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingPostRequestBody.cs
@@ -68,7 +68,7 @@ public Iso_CeilingPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Iso_Ceiling.Iso_CeilingPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Iso_Ceiling.Iso_CeilingPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingRequestBuilder.cs
index fc94973439b..b234d08d008 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Iso_Ceiling/Iso_CeilingRequestBuilder.cs
@@ -51,7 +51,7 @@ public Iso_CeilingRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Iso_Ceiling.Iso_CeilingPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Iso_Ceiling.Iso_CeilingPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtPostRequestBody.cs
index adb58183dc5..b74459729c7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtPostRequestBody.cs
@@ -100,7 +100,7 @@ public IspmtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ispmt.IspmtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ispmt.IspmtPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("per", Per);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtRequestBuilder.cs
index aca0e50a796..2e247a87429 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ispmt/IspmtRequestBuilder.cs
@@ -51,7 +51,7 @@ public IspmtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ispmt.IspmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ispmt.IspmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefPostRequestBody.cs
index d76cda325bf..0eef8b0f541 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefPostRequestBody.cs
@@ -52,7 +52,7 @@ public IsrefPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Isref.IsrefPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Isref.IsrefPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefRequestBuilder.cs
index 88246262617..65fbf2a00d2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Isref/IsrefRequestBuilder.cs
@@ -51,7 +51,7 @@ public IsrefRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Isref.IsrefPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Isref.IsrefPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtPostRequestBody.cs
index ba7a14c2f38..5ab3ef3ced6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtPostRequestBody.cs
@@ -52,7 +52,7 @@ public KurtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Kurt.KurtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Kurt.KurtPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtRequestBuilder.cs
index 97766a1a800..a37ccd7f055 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Kurt/KurtRequestBuilder.cs
@@ -51,7 +51,7 @@ public KurtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Kurt.KurtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Kurt.KurtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargePostRequestBody.cs
index e6a91cbccd2..382ee04438f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargePostRequestBody.cs
@@ -68,7 +68,7 @@ public LargePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Large.LargePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Large.LargePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("k", K);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargeRequestBuilder.cs
index 2c5d42c4a47..81028919839 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Large/LargeRequestBuilder.cs
@@ -51,7 +51,7 @@ public LargeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Large.LargePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Large.LargePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmPostRequestBody.cs
index aa03aefa473..77ca9785e6a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmPostRequestBody.cs
@@ -52,7 +52,7 @@ public LcmPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lcm.LcmPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lcm.LcmPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmRequestBuilder.cs
index c75597bc486..3530889df44 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lcm/LcmRequestBuilder.cs
@@ -51,7 +51,7 @@ public LcmRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lcm.LcmPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lcm.LcmPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftPostRequestBody.cs
index d706777d9de..6f3be6c7bef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftPostRequestBody.cs
@@ -68,7 +68,7 @@ public LeftPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Left.LeftPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Left.LeftPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numChars", NumChars);
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftRequestBuilder.cs
index 70c183bed91..d07ffec65c2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Left/LeftRequestBuilder.cs
@@ -51,7 +51,7 @@ public LeftRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Left.LeftPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Left.LeftPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbPostRequestBody.cs
index a9171491118..af795cf40d8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbPostRequestBody.cs
@@ -68,7 +68,7 @@ public LeftbPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Leftb.LeftbPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Leftb.LeftbPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numBytes", NumBytes);
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbRequestBuilder.cs
index 2ba564cc82f..2d8ba34cec2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Leftb/LeftbRequestBuilder.cs
@@ -51,7 +51,7 @@ public LeftbRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Leftb.LeftbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Leftb.LeftbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenPostRequestBody.cs
index 381134cde24..cd29f689559 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenPostRequestBody.cs
@@ -52,7 +52,7 @@ public LenPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Len.LenPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Len.LenPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenRequestBuilder.cs
index 671a7a0b9ca..4d6f420a775 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Len/LenRequestBuilder.cs
@@ -51,7 +51,7 @@ public LenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Len.LenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Len.LenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbPostRequestBody.cs
index 5ee59a1b673..16b681c0dea 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbPostRequestBody.cs
@@ -52,7 +52,7 @@ public LenbPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lenb.LenbPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lenb.LenbPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbRequestBuilder.cs
index 9c2dc11d45f..0aeba4c75b6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lenb/LenbRequestBuilder.cs
@@ -51,7 +51,7 @@ public LenbRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lenb.LenbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lenb.LenbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnPostRequestBody.cs
index bfc90693abb..c1be0d77f16 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnPostRequestBody.cs
@@ -52,7 +52,7 @@ public LnPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ln.LnPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ln.LnPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnRequestBuilder.cs
index 84e5eafed9d..fc11ed4f5d0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ln/LnRequestBuilder.cs
@@ -51,7 +51,7 @@ public LnRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ln.LnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ln.LnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogPostRequestBody.cs
index a82db9d289c..56284aa5d41 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogPostRequestBody.cs
@@ -68,7 +68,7 @@ public LogPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log.LogPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log.LogPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("base", Base);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogRequestBuilder.cs
index 3f0a5443d61..3506ebc10f1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log/LogRequestBuilder.cs
@@ -51,7 +51,7 @@ public LogRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log.LogPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log.LogPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10PostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10PostRequestBody.cs
index 9e2e55b7e73..7462a9d9a36 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10PostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10PostRequestBody.cs
@@ -52,7 +52,7 @@ public Log10PostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log10.Log10PostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log10.Log10PostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10RequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10RequestBuilder.cs
index 5cfd4514f7e..40054980bb5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Log10/Log10RequestBuilder.cs
@@ -51,7 +51,7 @@ public Log10RequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log10.Log10PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Log10.Log10PostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistPostRequestBody.cs
index 86a65d7b898..0ee5bb4493e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistPostRequestBody.cs
@@ -100,7 +100,7 @@ public LogNorm_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Dist.LogNorm_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Dist.LogNorm_DistPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("mean", Mean);
             writer.WriteObjectValue<UntypedNode>("standardDev", StandardDev);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistRequestBuilder.cs
index 5c521d88bb3..ff37a3c3d67 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Dist/LogNorm_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public LogNorm_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Dist.LogNorm_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Dist.LogNorm_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvPostRequestBody.cs
index 223d85a2cf8..e8e1a5a2596 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvPostRequestBody.cs
@@ -84,7 +84,7 @@ public LogNorm_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Inv.LogNorm_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Inv.LogNorm_InvPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("mean", Mean);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
             writer.WriteObjectValue<UntypedNode>("standardDev", StandardDev);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvRequestBuilder.cs
index dcfdb875d98..0a265098563 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/LogNorm_Inv/LogNorm_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public LogNorm_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Inv.LogNorm_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.LogNorm_Inv.LogNorm_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupPostRequestBody.cs
index 2b239c96efc..f09a6e92ddd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupPostRequestBody.cs
@@ -84,7 +84,7 @@ public LookupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lookup.LookupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lookup.LookupPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("lookupValue", LookupValue);
             writer.WriteObjectValue<UntypedNode>("lookupVector", LookupVector);
             writer.WriteObjectValue<UntypedNode>("resultVector", ResultVector);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupRequestBuilder.cs
index bc65fe9ce97..a45c1a92932 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lookup/LookupRequestBuilder.cs
@@ -51,7 +51,7 @@ public LookupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lookup.LookupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lookup.LookupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerPostRequestBody.cs
index a84adfecbd2..c4ab3762fd6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerPostRequestBody.cs
@@ -52,7 +52,7 @@ public LowerPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lower.LowerPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lower.LowerPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerRequestBuilder.cs
index a73efc81eb1..a1f48be720e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Lower/LowerRequestBuilder.cs
@@ -51,7 +51,7 @@ public LowerRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lower.LowerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Lower.LowerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchPostRequestBody.cs
index b9c9fa46a6f..a88230365b2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchPostRequestBody.cs
@@ -84,7 +84,7 @@ public MatchPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Match.MatchPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Match.MatchPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("lookupArray", LookupArray);
             writer.WriteObjectValue<UntypedNode>("lookupValue", LookupValue);
             writer.WriteObjectValue<UntypedNode>("matchType", MatchType);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchRequestBuilder.cs
index efc7ab09e6f..d663b3951f8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Match/MatchRequestBuilder.cs
@@ -51,7 +51,7 @@ public MatchRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Match.MatchPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Match.MatchPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxPostRequestBody.cs
index d95c55f5046..483865d1998 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxPostRequestBody.cs
@@ -52,7 +52,7 @@ public MaxPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Max.MaxPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Max.MaxPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxRequestBuilder.cs
index 5e8f549db98..fdfcf843247 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Max/MaxRequestBuilder.cs
@@ -51,7 +51,7 @@ public MaxRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Max.MaxPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Max.MaxPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxAPostRequestBody.cs
index 2757c09ed2f..c3f2c084816 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxAPostRequestBody.cs
@@ -52,7 +52,7 @@ public MaxAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MaxA.MaxAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MaxA.MaxAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxARequestBuilder.cs
index 0b469e6deb1..64bdf0419b5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MaxA/MaxARequestBuilder.cs
@@ -51,7 +51,7 @@ public MaxARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MaxA.MaxAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MaxA.MaxAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationPostRequestBody.cs
index cfb40aaab4d..103ba51e7a2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationPostRequestBody.cs
@@ -132,7 +132,7 @@ public MdurationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mduration.MdurationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mduration.MdurationPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("coupon", Coupon);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationRequestBuilder.cs
index 4394179b57e..5eea22bbe52 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mduration/MdurationRequestBuilder.cs
@@ -51,7 +51,7 @@ public MdurationRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mduration.MdurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mduration.MdurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianPostRequestBody.cs
index 2fdaf035316..9c3fe00bab6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianPostRequestBody.cs
@@ -52,7 +52,7 @@ public MedianPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Median.MedianPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Median.MedianPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianRequestBuilder.cs
index 53f8e60b32f..db814ba65fc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Median/MedianRequestBuilder.cs
@@ -51,7 +51,7 @@ public MedianRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Median.MedianPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Median.MedianPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidPostRequestBody.cs
index 459c823c685..e7c264ca677 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidPostRequestBody.cs
@@ -84,7 +84,7 @@ public MidPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mid.MidPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mid.MidPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numChars", NumChars);
             writer.WriteObjectValue<UntypedNode>("startNum", StartNum);
             writer.WriteObjectValue<UntypedNode>("text", Text);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidRequestBuilder.cs
index 223204ca963..ae16f742c69 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mid/MidRequestBuilder.cs
@@ -51,7 +51,7 @@ public MidRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mid.MidPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mid.MidPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbPostRequestBody.cs
index d9875ff0f03..5e4eebb746d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbPostRequestBody.cs
@@ -84,7 +84,7 @@ public MidbPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Midb.MidbPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Midb.MidbPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numBytes", NumBytes);
             writer.WriteObjectValue<UntypedNode>("startNum", StartNum);
             writer.WriteObjectValue<UntypedNode>("text", Text);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbRequestBuilder.cs
index 3d5fd91a20c..dc1b32d9218 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Midb/MidbRequestBuilder.cs
@@ -51,7 +51,7 @@ public MidbRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Midb.MidbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Midb.MidbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinPostRequestBody.cs
index 3c5ff4a36af..e1ffb1eafcf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinPostRequestBody.cs
@@ -52,7 +52,7 @@ public MinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Min.MinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Min.MinPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinRequestBuilder.cs
index 1611a91102e..2c8d7f7d452 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Min/MinRequestBuilder.cs
@@ -51,7 +51,7 @@ public MinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Min.MinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Min.MinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinAPostRequestBody.cs
index 942ccb8aa47..c467aa4df23 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinAPostRequestBody.cs
@@ -52,7 +52,7 @@ public MinAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MinA.MinAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MinA.MinAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinARequestBuilder.cs
index efb22bb5aeb..71c0b418d4e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MinA/MinARequestBuilder.cs
@@ -51,7 +51,7 @@ public MinARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MinA.MinAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MinA.MinAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinutePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinutePostRequestBody.cs
index f05ec118cc2..ed3db93a9f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinutePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinutePostRequestBody.cs
@@ -52,7 +52,7 @@ public MinutePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Minute.MinutePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Minute.MinutePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinuteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinuteRequestBuilder.cs
index 30b8bcb241e..58740ae6009 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinuteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Minute/MinuteRequestBuilder.cs
@@ -51,7 +51,7 @@ public MinuteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Minute.MinutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Minute.MinutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrPostRequestBody.cs
index 3889d4b9dbe..1e5d404c05f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrPostRequestBody.cs
@@ -84,7 +84,7 @@ public MirrPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mirr.MirrPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mirr.MirrPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("financeRate", FinanceRate);
             writer.WriteObjectValue<UntypedNode>("reinvestRate", ReinvestRate);
             writer.WriteObjectValue<UntypedNode>("values", Values);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrRequestBuilder.cs
index a1de184c09b..2b9ce1898db 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mirr/MirrRequestBuilder.cs
@@ -51,7 +51,7 @@ public MirrRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mirr.MirrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mirr.MirrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModPostRequestBody.cs
index c8dccd4e54a..5ea59b2b7f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModPostRequestBody.cs
@@ -68,7 +68,7 @@ public ModPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mod.ModPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mod.ModPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("divisor", Divisor);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModRequestBuilder.cs
index e11f855045a..c65e78a7549 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mod/ModRequestBuilder.cs
@@ -51,7 +51,7 @@ public ModRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mod.ModPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mod.ModPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthPostRequestBody.cs
index e285925611d..a03407aec06 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthPostRequestBody.cs
@@ -52,7 +52,7 @@ public MonthPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Month.MonthPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Month.MonthPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthRequestBuilder.cs
index b420e0bfd00..b3c8d7758bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Month/MonthRequestBuilder.cs
@@ -51,7 +51,7 @@ public MonthRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Month.MonthPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Month.MonthPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundPostRequestBody.cs
index f72ed1a09f4..26b9865bf6f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundPostRequestBody.cs
@@ -68,7 +68,7 @@ public MroundPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mround.MroundPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mround.MroundPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("multiple", Multiple);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundRequestBuilder.cs
index 6c3c1ad3cfc..da30ff5c726 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Mround/MroundRequestBuilder.cs
@@ -51,7 +51,7 @@ public MroundRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mround.MroundPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Mround.MroundPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialPostRequestBody.cs
index 3b3d2af663e..d29e02b6f46 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialPostRequestBody.cs
@@ -52,7 +52,7 @@ public MultiNomialPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MultiNomial.MultiNomialPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MultiNomial.MultiNomialPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialRequestBuilder.cs
index f26e49e985a..cff297a56dc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/MultiNomial/MultiNomialRequestBuilder.cs
@@ -51,7 +51,7 @@ public MultiNomialRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MultiNomial.MultiNomialPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.MultiNomial.MultiNomialPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NPostRequestBody.cs
index e744f0a4a92..9b593b4fecc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NPostRequestBody.cs
@@ -52,7 +52,7 @@ public NPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.N.NPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.N.NPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NRequestBuilder.cs
index 3ebc19939cc..e515c4e0fd0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/N/NRequestBuilder.cs
@@ -51,7 +51,7 @@ public NRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(req
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.N.NPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.N.NPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistPostRequestBody.cs
index 0f858b9333a..86c063122c5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistPostRequestBody.cs
@@ -100,7 +100,7 @@ public NegBinom_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NegBinom_Dist.NegBinom_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NegBinom_Dist.NegBinom_DistPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("numberF", NumberF);
             writer.WriteObjectValue<UntypedNode>("numberS", NumberS);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistRequestBuilder.cs
index ae30754d596..4091828a741 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NegBinom_Dist/NegBinom_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public NegBinom_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NegBinom_Dist.NegBinom_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NegBinom_Dist.NegBinom_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysPostRequestBody.cs
index 31304e591a2..5c1ae3bbe47 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysPostRequestBody.cs
@@ -84,7 +84,7 @@ public NetworkDaysPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays.NetworkDaysPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays.NetworkDaysPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endDate", EndDate);
             writer.WriteObjectValue<UntypedNode>("holidays", Holidays);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysRequestBuilder.cs
index 843d5ecdb1e..e78fa00c84c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays/NetworkDaysRequestBuilder.cs
@@ -51,7 +51,7 @@ public NetworkDaysRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays.NetworkDaysPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays.NetworkDaysPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlPostRequestBody.cs
index bbf1eb58efe..cdbe769ed29 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlPostRequestBody.cs
@@ -100,7 +100,7 @@ public NetworkDays_IntlPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays_Intl.NetworkDays_IntlPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays_Intl.NetworkDays_IntlPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endDate", EndDate);
             writer.WriteObjectValue<UntypedNode>("holidays", Holidays);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlRequestBuilder.cs
index a5d2e15ad55..cd184446d94 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NetworkDays_Intl/NetworkDays_IntlRequestBuilder.cs
@@ -51,7 +51,7 @@ public NetworkDays_IntlRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays_Intl.NetworkDays_IntlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NetworkDays_Intl.NetworkDays_IntlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalPostRequestBody.cs
index 6b8415cd67a..490cb4d71dd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalPostRequestBody.cs
@@ -68,7 +68,7 @@ public NominalPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nominal.NominalPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nominal.NominalPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("effectRate", EffectRate);
             writer.WriteObjectValue<UntypedNode>("npery", Npery);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalRequestBuilder.cs
index 50e23670013..7f8c96d6a85 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nominal/NominalRequestBuilder.cs
@@ -51,7 +51,7 @@ public NominalRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nominal.NominalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nominal.NominalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistPostRequestBody.cs
index f19dd942e27..472cc2cb929 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistPostRequestBody.cs
@@ -100,7 +100,7 @@ public Norm_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Dist.Norm_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Dist.Norm_DistPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("mean", Mean);
             writer.WriteObjectValue<UntypedNode>("standardDev", StandardDev);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistRequestBuilder.cs
index 5eecd015b50..ead69710559 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Dist/Norm_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Norm_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Dist.Norm_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Dist.Norm_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvPostRequestBody.cs
index 304037351f4..806194f5803 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvPostRequestBody.cs
@@ -84,7 +84,7 @@ public Norm_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Inv.Norm_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Inv.Norm_InvPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("mean", Mean);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
             writer.WriteObjectValue<UntypedNode>("standardDev", StandardDev);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvRequestBuilder.cs
index 828be3478da..b56bf736137 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_Inv/Norm_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public Norm_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Inv.Norm_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_Inv.Norm_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistPostRequestBody.cs
index f474756e04d..bb5840e6a03 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistPostRequestBody.cs
@@ -68,7 +68,7 @@ public Norm_S_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Dist.Norm_S_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Dist.Norm_S_DistPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("z", Z);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistRequestBuilder.cs
index e4dc3532986..7d579435117 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Dist/Norm_S_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Norm_S_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Dist.Norm_S_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Dist.Norm_S_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvPostRequestBody.cs
index 50cee37a675..90206da7b0b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvPostRequestBody.cs
@@ -52,7 +52,7 @@ public Norm_S_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Inv.Norm_S_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Inv.Norm_S_InvPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvRequestBuilder.cs
index f0bbf422f2a..53facdbf28b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Norm_S_Inv/Norm_S_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public Norm_S_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Inv.Norm_S_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Norm_S_Inv.Norm_S_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotPostRequestBody.cs
index fcc9d144ff2..29e346cbe6d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotPostRequestBody.cs
@@ -52,7 +52,7 @@ public NotPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Not.NotPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Not.NotPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("logical", Logical);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotRequestBuilder.cs
index 520ca295502..dcbd2201b92 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Not/NotRequestBuilder.cs
@@ -51,7 +51,7 @@ public NotRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Not.NotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Not.NotPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperPostRequestBody.cs
index 809d805b596..086cc1242e9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperPostRequestBody.cs
@@ -116,7 +116,7 @@ public NperPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nper.NperPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nper.NperPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("pmt", Pmt);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperRequestBuilder.cs
index 11638bccaf0..71156ed57e4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Nper/NperRequestBuilder.cs
@@ -51,7 +51,7 @@ public NperRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nper.NperPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Nper.NperPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvPostRequestBody.cs
index 9d3adf57c3f..eebc29ccaf2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvPostRequestBody.cs
@@ -68,7 +68,7 @@ public NpvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Npv.NpvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Npv.NpvPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("rate", Rate);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvRequestBuilder.cs
index 01dce00a24d..04ef6535cd9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Npv/NpvRequestBuilder.cs
@@ -51,7 +51,7 @@ public NpvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Npv.NpvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Npv.NpvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValuePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValuePostRequestBody.cs
index 9ab167aec14..4a6a3be7c3c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValuePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValuePostRequestBody.cs
@@ -84,7 +84,7 @@ public NumberValuePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NumberValue.NumberValuePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NumberValue.NumberValuePostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("decimalSeparator", DecimalSeparator);
             writer.WriteObjectValue<UntypedNode>("groupSeparator", GroupSeparator);
             writer.WriteObjectValue<UntypedNode>("text", Text);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValueRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValueRequestBuilder.cs
index e952e4fac64..0e8f819e6e0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValueRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/NumberValue/NumberValueRequestBuilder.cs
@@ -51,7 +51,7 @@ public NumberValueRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NumberValue.NumberValuePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.NumberValue.NumberValuePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinPostRequestBody.cs
index 82588c11381..47f80dc11fa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinPostRequestBody.cs
@@ -68,7 +68,7 @@ public Oct2BinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Bin.Oct2BinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Bin.Oct2BinPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinRequestBuilder.cs
index d90b6c302eb..885e3f5103e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Bin/Oct2BinRequestBuilder.cs
@@ -51,7 +51,7 @@ public Oct2BinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Bin.Oct2BinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Bin.Oct2BinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecPostRequestBody.cs
index 1352548f540..4af2edecc8a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecPostRequestBody.cs
@@ -52,7 +52,7 @@ public Oct2DecPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Dec.Oct2DecPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Dec.Oct2DecPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecRequestBuilder.cs
index 8aa36995afe..55bc6bc8863 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Dec/Oct2DecRequestBuilder.cs
@@ -51,7 +51,7 @@ public Oct2DecRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Dec.Oct2DecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Dec.Oct2DecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexPostRequestBody.cs
index fbb5607ed9f..b81a12f956e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexPostRequestBody.cs
@@ -68,7 +68,7 @@ public Oct2HexPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Hex.Oct2HexPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Hex.Oct2HexPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("places", Places);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexRequestBuilder.cs
index 2a865d6a2b7..eb2dd883b37 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Oct2Hex/Oct2HexRequestBuilder.cs
@@ -51,7 +51,7 @@ public Oct2HexRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Hex.Oct2HexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Oct2Hex.Oct2HexPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddPostRequestBody.cs
index ac1fdad51d3..0504aea03b6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddPostRequestBody.cs
@@ -52,7 +52,7 @@ public OddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Odd.OddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Odd.OddPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddRequestBuilder.cs
index d9f0d33c2e6..69b64f84a9a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Odd/OddRequestBuilder.cs
@@ -51,7 +51,7 @@ public OddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Odd.OddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Odd.OddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPricePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPricePostRequestBody.cs
index 1a10f21e3cd..77903010c8e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPricePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPricePostRequestBody.cs
@@ -180,7 +180,7 @@ public OddFPricePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFPrice.OddFPricePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFPrice.OddFPricePostRequestBody();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("firstCoupon", FirstCoupon);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPriceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPriceRequestBuilder.cs
index f265feb9897..5b64219175b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPriceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFPrice/OddFPriceRequestBuilder.cs
@@ -51,7 +51,7 @@ public OddFPriceRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFPrice.OddFPricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFPrice.OddFPricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldPostRequestBody.cs
index 2105d115927..4df2cb49663 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldPostRequestBody.cs
@@ -180,7 +180,7 @@ public OddFYieldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFYield.OddFYieldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFYield.OddFYieldPostRequestBody();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("firstCoupon", FirstCoupon);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldRequestBuilder.cs
index a6ed3ede4f3..cdb722a5126 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddFYield/OddFYieldRequestBuilder.cs
@@ -51,7 +51,7 @@ public OddFYieldRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFYield.OddFYieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddFYield.OddFYieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPricePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPricePostRequestBody.cs
index 12b5a549432..8dc0e737732 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPricePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPricePostRequestBody.cs
@@ -164,7 +164,7 @@ public OddLPricePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLPrice.OddLPricePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLPrice.OddLPricePostRequestBody();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("lastInterest", LastInterest);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPriceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPriceRequestBuilder.cs
index 913942086d1..c4c04b924eb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPriceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLPrice/OddLPriceRequestBuilder.cs
@@ -51,7 +51,7 @@ public OddLPriceRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLPrice.OddLPricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLPrice.OddLPricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldPostRequestBody.cs
index ed602df113f..4acfdbd010e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldPostRequestBody.cs
@@ -164,7 +164,7 @@ public OddLYieldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLYield.OddLYieldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLYield.OddLYieldPostRequestBody();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("lastInterest", LastInterest);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldRequestBuilder.cs
index 273455be77f..7c6717d79b4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/OddLYield/OddLYieldRequestBuilder.cs
@@ -51,7 +51,7 @@ public OddLYieldRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLYield.OddLYieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.OddLYield.OddLYieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrPostRequestBody.cs
index 13cc3d9fb3e..921ee85a193 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrPostRequestBody.cs
@@ -52,7 +52,7 @@ public OrPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Or.OrPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Or.OrPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrRequestBuilder.cs
index d28b3ef15c8..f9f95cb2d6d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Or/OrRequestBuilder.cs
@@ -51,7 +51,7 @@ public OrRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Or.OrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Or.OrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationPostRequestBody.cs
index f9c05b2e4a0..456917b00f1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationPostRequestBody.cs
@@ -84,7 +84,7 @@ public PdurationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pduration.PdurationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pduration.PdurationPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
             writer.WriteObjectValue<UntypedNode>("rate", Rate);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationRequestBuilder.cs
index 0d67bd31316..8d9af4a36a1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pduration/PdurationRequestBuilder.cs
@@ -51,7 +51,7 @@ public PdurationRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pduration.PdurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pduration.PdurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcPostRequestBody.cs
index e541f7ae0f5..f14d63abe81 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcPostRequestBody.cs
@@ -84,7 +84,7 @@ public PercentRank_ExcPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Exc.PercentRank_ExcPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Exc.PercentRank_ExcPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcRequestBuilder.cs
index ee4742dc720..f7bbb4340fc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Exc/PercentRank_ExcRequestBuilder.cs
@@ -51,7 +51,7 @@ public PercentRank_ExcRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Exc.PercentRank_ExcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Exc.PercentRank_ExcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncPostRequestBody.cs
index ac35622a194..8e102bb2e65 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncPostRequestBody.cs
@@ -84,7 +84,7 @@ public PercentRank_IncPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Inc.PercentRank_IncPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Inc.PercentRank_IncPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("significance", Significance);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncRequestBuilder.cs
index c0e21dee3c7..5f2cd729275 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PercentRank_Inc/PercentRank_IncRequestBuilder.cs
@@ -51,7 +51,7 @@ public PercentRank_IncRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Inc.PercentRank_IncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PercentRank_Inc.PercentRank_IncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcPostRequestBody.cs
index e0627b4c149..6badd0e941b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcPostRequestBody.cs
@@ -68,7 +68,7 @@ public Percentile_ExcPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Exc.Percentile_ExcPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Exc.Percentile_ExcPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("k", K);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcRequestBuilder.cs
index e737be1df37..a47dc6e8c91 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Exc/Percentile_ExcRequestBuilder.cs
@@ -51,7 +51,7 @@ public Percentile_ExcRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Exc.Percentile_ExcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Exc.Percentile_ExcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncPostRequestBody.cs
index e5935483276..e2a9f56f511 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncPostRequestBody.cs
@@ -68,7 +68,7 @@ public Percentile_IncPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Inc.Percentile_IncPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Inc.Percentile_IncPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("k", K);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncRequestBuilder.cs
index cb8bb5ffe1b..71c76b02000 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Percentile_Inc/Percentile_IncRequestBuilder.cs
@@ -51,7 +51,7 @@ public Percentile_IncRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Inc.Percentile_IncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Percentile_Inc.Percentile_IncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutPostRequestBody.cs
index d63031245b5..f8b4daf5889 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutPostRequestBody.cs
@@ -68,7 +68,7 @@ public PermutPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permut.PermutPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permut.PermutPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numberChosen", NumberChosen);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutRequestBuilder.cs
index acfdee3496a..ebee79e3244 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permut/PermutRequestBuilder.cs
@@ -51,7 +51,7 @@ public PermutRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permut.PermutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permut.PermutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaPostRequestBody.cs
index 428d71abc23..15eb6ad5ebf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaPostRequestBody.cs
@@ -68,7 +68,7 @@ public PermutationaPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permutationa.PermutationaPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permutationa.PermutationaPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numberChosen", NumberChosen);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaRequestBuilder.cs
index d4a3404fac2..f88050dcec2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Permutationa/PermutationaRequestBuilder.cs
@@ -51,7 +51,7 @@ public PermutationaRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permutationa.PermutationaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Permutationa.PermutationaPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiPostRequestBody.cs
index 265dd4afacc..278153daea1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiPostRequestBody.cs
@@ -52,7 +52,7 @@ public PhiPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Phi.PhiPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Phi.PhiPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiRequestBuilder.cs
index 197701be8aa..be028dcbaf4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Phi/PhiRequestBuilder.cs
@@ -51,7 +51,7 @@ public PhiRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Phi.PhiPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Phi.PhiPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtPostRequestBody.cs
index 32b38ac8e5a..6059b07f707 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtPostRequestBody.cs
@@ -116,7 +116,7 @@ public PmtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pmt.PmtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pmt.PmtPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtRequestBuilder.cs
index f31f82bc5fc..e5e8e3aaed9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pmt/PmtRequestBuilder.cs
@@ -51,7 +51,7 @@ public PmtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pmt.PmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pmt.PmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistPostRequestBody.cs
index a897c3e6fba..d9df12db2e9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistPostRequestBody.cs
@@ -84,7 +84,7 @@ public Poisson_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Poisson_Dist.Poisson_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Poisson_Dist.Poisson_DistPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("mean", Mean);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistRequestBuilder.cs
index 292e2cc648c..7163300f9c1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Poisson_Dist/Poisson_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Poisson_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Poisson_Dist.Poisson_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Poisson_Dist.Poisson_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerPostRequestBody.cs
index 1a649fdd2fe..399b22f4a80 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerPostRequestBody.cs
@@ -68,7 +68,7 @@ public PowerPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Power.PowerPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Power.PowerPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("power", Power);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerRequestBuilder.cs
index 23f93f1de50..6e8d8a932b3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Power/PowerRequestBuilder.cs
@@ -51,7 +51,7 @@ public PowerRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Power.PowerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Power.PowerPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtPostRequestBody.cs
index d562b1931da..06d918f4691 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtPostRequestBody.cs
@@ -132,7 +132,7 @@ public PpmtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ppmt.PpmtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ppmt.PpmtPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("per", Per);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtRequestBuilder.cs
index abc465655a7..0422ffbf1fb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Ppmt/PpmtRequestBuilder.cs
@@ -51,7 +51,7 @@ public PpmtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ppmt.PpmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Ppmt.PpmtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PricePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PricePostRequestBody.cs
index eb48f815358..3bc1cc9122e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PricePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PricePostRequestBody.cs
@@ -148,7 +148,7 @@ public PricePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Price.PricePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Price.PricePostRequestBody();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PriceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PriceRequestBuilder.cs
index 12c10c6323e..fca97ac352b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PriceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Price/PriceRequestBuilder.cs
@@ -51,7 +51,7 @@ public PriceRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Price.PricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Price.PricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscPostRequestBody.cs
index da0d0ca3620..1334d0d2a34 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscPostRequestBody.cs
@@ -116,7 +116,7 @@ public PriceDiscPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceDisc.PriceDiscPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceDisc.PriceDiscPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("discount", Discount);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscRequestBuilder.cs
index c6ec7f7ad9d..fe9c2516287 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceDisc/PriceDiscRequestBuilder.cs
@@ -51,7 +51,7 @@ public PriceDiscRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceDisc.PriceDiscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceDisc.PriceDiscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatPostRequestBody.cs
index 5cd8ebce393..6b0d5738c06 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatPostRequestBody.cs
@@ -132,7 +132,7 @@ public PriceMatPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceMat.PriceMatPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceMat.PriceMatPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("issue", Issue);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatRequestBuilder.cs
index 8d0e9f8e638..0df9739c26a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/PriceMat/PriceMatRequestBuilder.cs
@@ -51,7 +51,7 @@ public PriceMatRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceMat.PriceMatPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.PriceMat.PriceMatPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductPostRequestBody.cs
index 30071e8486d..40bd85ec6f1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductPostRequestBody.cs
@@ -52,7 +52,7 @@ public ProductPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Product.ProductPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Product.ProductPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductRequestBuilder.cs
index a09bc564abb..750276c2773 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Product/ProductRequestBuilder.cs
@@ -51,7 +51,7 @@ public ProductRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Product.ProductPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Product.ProductPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperPostRequestBody.cs
index 2b8e749c24f..6c057153265 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperPostRequestBody.cs
@@ -52,7 +52,7 @@ public ProperPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Proper.ProperPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Proper.ProperPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperRequestBuilder.cs
index eae91adb9ba..f7a4e05b656 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Proper/ProperRequestBuilder.cs
@@ -51,7 +51,7 @@ public ProperRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Proper.ProperPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Proper.ProperPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvPostRequestBody.cs
index 38c3bb10f3c..10824825309 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvPostRequestBody.cs
@@ -116,7 +116,7 @@ public PvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pv.PvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pv.PvPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("pmt", Pmt);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvRequestBuilder.cs
index b0a459842e1..de53939bee5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Pv/PvRequestBuilder.cs
@@ -51,7 +51,7 @@ public PvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pv.PvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Pv.PvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcPostRequestBody.cs
index 797fae7e32f..348c6e85903 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcPostRequestBody.cs
@@ -68,7 +68,7 @@ public Quartile_ExcPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Exc.Quartile_ExcPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Exc.Quartile_ExcPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("quart", Quart);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcRequestBuilder.cs
index 4dc4c0294a0..5df18db7a6d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Exc/Quartile_ExcRequestBuilder.cs
@@ -51,7 +51,7 @@ public Quartile_ExcRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Exc.Quartile_ExcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Exc.Quartile_ExcPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncPostRequestBody.cs
index 5ff9834c8a7..df7b4211683 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncPostRequestBody.cs
@@ -68,7 +68,7 @@ public Quartile_IncPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Inc.Quartile_IncPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Inc.Quartile_IncPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("quart", Quart);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncRequestBuilder.cs
index 994cdee699f..9b8c3672e65 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quartile_Inc/Quartile_IncRequestBuilder.cs
@@ -51,7 +51,7 @@ public Quartile_IncRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Inc.Quartile_IncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quartile_Inc.Quartile_IncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientPostRequestBody.cs
index fb56d52c8cf..f23b4856a0b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientPostRequestBody.cs
@@ -68,7 +68,7 @@ public QuotientPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quotient.QuotientPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quotient.QuotientPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("denominator", Denominator);
             writer.WriteObjectValue<UntypedNode>("numerator", Numerator);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientRequestBuilder.cs
index 1bfb8196c8d..165ba1fb752 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Quotient/QuotientRequestBuilder.cs
@@ -51,7 +51,7 @@ public QuotientRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quotient.QuotientPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Quotient.QuotientPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansPostRequestBody.cs
index dbfc0c6296d..3299f034696 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansPostRequestBody.cs
@@ -52,7 +52,7 @@ public RadiansPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Radians.RadiansPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Radians.RadiansPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("angle", Angle);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansRequestBuilder.cs
index 85f0c9755fb..9e2274afe11 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Radians/RadiansRequestBuilder.cs
@@ -51,7 +51,7 @@ public RadiansRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Radians.RadiansPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Radians.RadiansPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenPostRequestBody.cs
index 0900dae427b..6e40d834596 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenPostRequestBody.cs
@@ -68,7 +68,7 @@ public RandBetweenPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RandBetween.RandBetweenPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RandBetween.RandBetweenPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("bottom", Bottom);
             writer.WriteObjectValue<UntypedNode>("top", Top);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenRequestBuilder.cs
index 6645d5d5396..d59962a788a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RandBetween/RandBetweenRequestBuilder.cs
@@ -51,7 +51,7 @@ public RandBetweenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RandBetween.RandBetweenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RandBetween.RandBetweenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgPostRequestBody.cs
index 87bb3dcd442..854838dce7c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgPostRequestBody.cs
@@ -84,7 +84,7 @@ public Rank_AvgPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Avg.Rank_AvgPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Avg.Rank_AvgPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("order", Order);
             writer.WriteObjectValue<UntypedNode>("ref", Ref);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgRequestBuilder.cs
index 31bb79616a5..506498f87af 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Avg/Rank_AvgRequestBuilder.cs
@@ -51,7 +51,7 @@ public Rank_AvgRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Avg.Rank_AvgPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Avg.Rank_AvgPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqPostRequestBody.cs
index c9affaa742c..e03964294b7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqPostRequestBody.cs
@@ -84,7 +84,7 @@ public Rank_EqPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Eq.Rank_EqPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Eq.Rank_EqPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("order", Order);
             writer.WriteObjectValue<UntypedNode>("ref", Ref);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqRequestBuilder.cs
index c35d48a1ef3..148d284f245 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rank_Eq/Rank_EqRequestBuilder.cs
@@ -51,7 +51,7 @@ public Rank_EqRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Eq.Rank_EqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rank_Eq.Rank_EqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RatePostRequestBody.cs
index e1ea2805054..eee6948d965 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RatePostRequestBody.cs
@@ -132,7 +132,7 @@ public RatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rate.RatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rate.RatePostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("guess", Guess);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RateRequestBuilder.cs
index e74d37c56f9..5a7149f3cac 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rate/RateRequestBuilder.cs
@@ -51,7 +51,7 @@ public RateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rate.RatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rate.RatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedPostRequestBody.cs
index bcd6fd4a61c..c528506ed4a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedPostRequestBody.cs
@@ -116,7 +116,7 @@ public ReceivedPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Received.ReceivedPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Received.ReceivedPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("discount", Discount);
             writer.WriteObjectValue<UntypedNode>("investment", Investment);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedRequestBuilder.cs
index e69e9154d44..89fd570f1fa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Received/ReceivedRequestBuilder.cs
@@ -51,7 +51,7 @@ public ReceivedRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Received.ReceivedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Received.ReceivedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplacePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplacePostRequestBody.cs
index f0c1db9d366..d35d063f980 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplacePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplacePostRequestBody.cs
@@ -100,7 +100,7 @@ public ReplacePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Replace.ReplacePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Replace.ReplacePostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("newText", NewText);
             writer.WriteObjectValue<UntypedNode>("numChars", NumChars);
             writer.WriteObjectValue<UntypedNode>("oldText", OldText);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplaceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplaceRequestBuilder.cs
index fa83b51fca8..d6dd76f611e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplaceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Replace/ReplaceRequestBuilder.cs
@@ -51,7 +51,7 @@ public ReplaceRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Replace.ReplacePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Replace.ReplacePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBPostRequestBody.cs
index f8fb5b44e77..c22f37def53 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBPostRequestBody.cs
@@ -100,7 +100,7 @@ public ReplaceBPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ReplaceB.ReplaceBPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ReplaceB.ReplaceBPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("newText", NewText);
             writer.WriteObjectValue<UntypedNode>("numBytes", NumBytes);
             writer.WriteObjectValue<UntypedNode>("oldText", OldText);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBRequestBuilder.cs
index 8a1b99002e4..6478d3cedab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/ReplaceB/ReplaceBRequestBuilder.cs
@@ -51,7 +51,7 @@ public ReplaceBRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ReplaceB.ReplaceBPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.ReplaceB.ReplaceBPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptPostRequestBody.cs
index e1e12dc1acb..45b22fb5a46 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptPostRequestBody.cs
@@ -68,7 +68,7 @@ public ReptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rept.ReptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rept.ReptPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numberTimes", NumberTimes);
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptRequestBuilder.cs
index 6f4fa23f3a1..f1b35a41300 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rept/ReptRequestBuilder.cs
@@ -51,7 +51,7 @@ public ReptRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rept.ReptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rept.ReptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightPostRequestBody.cs
index c5439a29623..d3c59f8033c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightPostRequestBody.cs
@@ -68,7 +68,7 @@ public RightPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Right.RightPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Right.RightPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numChars", NumChars);
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightRequestBuilder.cs
index c8825b22a81..92afd126b04 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Right/RightRequestBuilder.cs
@@ -51,7 +51,7 @@ public RightRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Right.RightPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Right.RightPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbPostRequestBody.cs
index 8d61dd7519f..6100a3c8bf6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbPostRequestBody.cs
@@ -68,7 +68,7 @@ public RightbPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rightb.RightbPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rightb.RightbPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("numBytes", NumBytes);
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbRequestBuilder.cs
index 2727898d2e3..15b48931477 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rightb/RightbRequestBuilder.cs
@@ -51,7 +51,7 @@ public RightbRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rightb.RightbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rightb.RightbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanPostRequestBody.cs
index e1d91115810..ae8e9478fa0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanPostRequestBody.cs
@@ -68,7 +68,7 @@ public RomanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Roman.RomanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Roman.RomanPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("form", Form);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanRequestBuilder.cs
index 50eb2aba7fc..978b22aa2eb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Roman/RomanRequestBuilder.cs
@@ -51,7 +51,7 @@ public RomanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Roman.RomanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Roman.RomanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundPostRequestBody.cs
index f35afb3ed71..4719f0b4abf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundPostRequestBody.cs
@@ -68,7 +68,7 @@ public RoundPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Round.RoundPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Round.RoundPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numDigits", NumDigits);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundRequestBuilder.cs
index b8311cf7d1d..158dc90a373 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Round/RoundRequestBuilder.cs
@@ -51,7 +51,7 @@ public RoundRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Round.RoundPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Round.RoundPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownPostRequestBody.cs
index 6101b6d9cae..938c8b28b5d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownPostRequestBody.cs
@@ -68,7 +68,7 @@ public RoundDownPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundDown.RoundDownPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundDown.RoundDownPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numDigits", NumDigits);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownRequestBuilder.cs
index 4eed4135fe3..ca4716f7480 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundDown/RoundDownRequestBuilder.cs
@@ -51,7 +51,7 @@ public RoundDownRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundDown.RoundDownPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundDown.RoundDownPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpPostRequestBody.cs
index fcec05bea38..6b8343e5b8a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpPostRequestBody.cs
@@ -68,7 +68,7 @@ public RoundUpPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundUp.RoundUpPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundUp.RoundUpPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numDigits", NumDigits);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpRequestBuilder.cs
index b9cc9e964ca..cad1b89fee1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/RoundUp/RoundUpRequestBuilder.cs
@@ -51,7 +51,7 @@ public RoundUpRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundUp.RoundUpPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.RoundUp.RoundUpPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsPostRequestBody.cs
index 863f9410c70..79afefdf5b0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsPostRequestBody.cs
@@ -52,7 +52,7 @@ public RowsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rows.RowsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rows.RowsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsRequestBuilder.cs
index f5088e7f3a9..8fb574f9565 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rows/RowsRequestBuilder.cs
@@ -51,7 +51,7 @@ public RowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rows.RowsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rows.RowsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriPostRequestBody.cs
index 5274bd346ed..b830abe2b8e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriPostRequestBody.cs
@@ -84,7 +84,7 @@ public RriPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rri.RriPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rri.RriPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("fv", Fv);
             writer.WriteObjectValue<UntypedNode>("nper", Nper);
             writer.WriteObjectValue<UntypedNode>("pv", Pv);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriRequestBuilder.cs
index 18351a8cb9f..fd77c74117a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Rri/RriRequestBuilder.cs
@@ -51,7 +51,7 @@ public RriRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rri.RriPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Rri.RriPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecPostRequestBody.cs
index 31773d319a0..10f88de88f1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecPostRequestBody.cs
@@ -52,7 +52,7 @@ public SecPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sec.SecPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sec.SecPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecRequestBuilder.cs
index be135e6b926..c75a39972d5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sec/SecRequestBuilder.cs
@@ -51,7 +51,7 @@ public SecRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sec.SecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sec.SecPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechPostRequestBody.cs
index 58cd900dd64..2fd14abfeac 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechPostRequestBody.cs
@@ -52,7 +52,7 @@ public SechPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sech.SechPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sech.SechPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechRequestBuilder.cs
index cb2877982a7..42f4d074062 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sech/SechRequestBuilder.cs
@@ -51,7 +51,7 @@ public SechRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sech.SechPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sech.SechPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondPostRequestBody.cs
index f8794d8811d..e537b45794d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondPostRequestBody.cs
@@ -52,7 +52,7 @@ public SecondPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Second.SecondPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Second.SecondPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondRequestBuilder.cs
index b33bb519095..e128c913158 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Second/SecondRequestBuilder.cs
@@ -51,7 +51,7 @@ public SecondRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Second.SecondPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Second.SecondPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumPostRequestBody.cs
index a29ffc72afd..3bc8969260b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumPostRequestBody.cs
@@ -100,7 +100,7 @@ public SeriesSumPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SeriesSum.SeriesSumPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SeriesSum.SeriesSumPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("coefficients", Coefficients);
             writer.WriteObjectValue<UntypedNode>("m", M);
             writer.WriteObjectValue<UntypedNode>("n", N);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumRequestBuilder.cs
index 14997510a0a..f0ccbfbcd2b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SeriesSum/SeriesSumRequestBuilder.cs
@@ -51,7 +51,7 @@ public SeriesSumRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SeriesSum.SeriesSumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SeriesSum.SeriesSumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetPostRequestBody.cs
index e18c9eba50e..6b2fd586402 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetPostRequestBody.cs
@@ -52,7 +52,7 @@ public SheetPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheet.SheetPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheet.SheetPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetRequestBuilder.cs
index 8464588e0a0..c69606fd07b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheet/SheetRequestBuilder.cs
@@ -51,7 +51,7 @@ public SheetRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheet.SheetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheet.SheetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsPostRequestBody.cs
index 790ef8dce97..1b489e774d3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsPostRequestBody.cs
@@ -52,7 +52,7 @@ public SheetsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheets.SheetsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheets.SheetsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("reference", Reference);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsRequestBuilder.cs
index a657e127f4b..2b2db340bb3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sheets/SheetsRequestBuilder.cs
@@ -51,7 +51,7 @@ public SheetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheets.SheetsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sheets.SheetsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignPostRequestBody.cs
index 28d1f39e5ea..2f0ee6c7605 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignPostRequestBody.cs
@@ -52,7 +52,7 @@ public SignPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sign.SignPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sign.SignPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignRequestBuilder.cs
index 5043abec0c3..a765521a1ea 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sign/SignRequestBuilder.cs
@@ -51,7 +51,7 @@ public SignRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sign.SignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sign.SignPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinPostRequestBody.cs
index 8de534456ff..c3ad329dcb2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinPostRequestBody.cs
@@ -52,7 +52,7 @@ public SinPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sin.SinPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sin.SinPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinRequestBuilder.cs
index 519c9f11f3b..afa1ab0f1ba 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sin/SinRequestBuilder.cs
@@ -51,7 +51,7 @@ public SinRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sin.SinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sin.SinPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhPostRequestBody.cs
index 1958e3fb537..989095ee2b6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhPostRequestBody.cs
@@ -52,7 +52,7 @@ public SinhPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sinh.SinhPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sinh.SinhPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhRequestBuilder.cs
index 076752a14f4..bcded036783 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sinh/SinhRequestBuilder.cs
@@ -51,7 +51,7 @@ public SinhRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sinh.SinhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sinh.SinhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewPostRequestBody.cs
index 262ced337a4..6670ed8691d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewPostRequestBody.cs
@@ -52,7 +52,7 @@ public SkewPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew.SkewPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew.SkewPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewRequestBuilder.cs
index 5de7be9cb08..e1cedd4a73b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew/SkewRequestBuilder.cs
@@ -51,7 +51,7 @@ public SkewRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew.SkewPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew.SkewPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pPostRequestBody.cs
index 8abe63ed595..8ac87af42bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pPostRequestBody.cs
@@ -52,7 +52,7 @@ public Skew_pPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew_p.Skew_pPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew_p.Skew_pPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pRequestBuilder.cs
index ae7fdb824f5..f5a8e93cdc3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Skew_p/Skew_pRequestBuilder.cs
@@ -51,7 +51,7 @@ public Skew_pRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew_p.Skew_pPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Skew_p.Skew_pPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnPostRequestBody.cs
index eaec088da10..5c2e123d430 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnPostRequestBody.cs
@@ -84,7 +84,7 @@ public SlnPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sln.SlnPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sln.SlnPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cost", Cost);
             writer.WriteObjectValue<UntypedNode>("life", Life);
             writer.WriteObjectValue<UntypedNode>("salvage", Salvage);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnRequestBuilder.cs
index 7b8cd8b3a05..e443d07c1ba 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sln/SlnRequestBuilder.cs
@@ -51,7 +51,7 @@ public SlnRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sln.SlnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sln.SlnPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallPostRequestBody.cs
index fc5f8aabe63..13e19b49787 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallPostRequestBody.cs
@@ -68,7 +68,7 @@ public SmallPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Small.SmallPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Small.SmallPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("k", K);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallRequestBuilder.cs
index e8a5e890361..87d9dd4f8ee 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Small/SmallRequestBuilder.cs
@@ -51,7 +51,7 @@ public SmallRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Small.SmallPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Small.SmallPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtPostRequestBody.cs
index b14aea168bd..b4149bb25f4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtPostRequestBody.cs
@@ -52,7 +52,7 @@ public SqrtPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sqrt.SqrtPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sqrt.SqrtPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtRequestBuilder.cs
index f203b7a4691..6698700c8f9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sqrt/SqrtRequestBuilder.cs
@@ -51,7 +51,7 @@ public SqrtRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sqrt.SqrtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sqrt.SqrtPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiPostRequestBody.cs
index 7cc76821d15..74405475371 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiPostRequestBody.cs
@@ -52,7 +52,7 @@ public SqrtPiPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SqrtPi.SqrtPiPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SqrtPi.SqrtPiPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiRequestBuilder.cs
index ef97ad37c06..4128e21483b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SqrtPi/SqrtPiRequestBuilder.cs
@@ -51,7 +51,7 @@ public SqrtPiRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SqrtPi.SqrtPiPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SqrtPi.SqrtPiPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevAPostRequestBody.cs
index 8276075ea46..a7f1c155878 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevAPostRequestBody.cs
@@ -52,7 +52,7 @@ public StDevAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevA.StDevAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevA.StDevAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevARequestBuilder.cs
index 0acab298854..a162ab40480 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevA/StDevARequestBuilder.cs
@@ -51,7 +51,7 @@ public StDevARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevA.StDevAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevA.StDevAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPAPostRequestBody.cs
index 210f0b1ea01..700ec6ea01e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPAPostRequestBody.cs
@@ -52,7 +52,7 @@ public StDevPAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevPA.StDevPAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevPA.StDevPAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPARequestBuilder.cs
index d622fd02493..66c954bfe02 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDevPA/StDevPARequestBuilder.cs
@@ -51,7 +51,7 @@ public StDevPARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevPA.StDevPAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDevPA.StDevPAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PPostRequestBody.cs
index 7e2541e185f..a01ba20ea13 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PPostRequestBody.cs
@@ -52,7 +52,7 @@ public StDev_PPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_P.StDev_PPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_P.StDev_PPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PRequestBuilder.cs
index 60d774c3dcc..1d80a0eea46 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_P/StDev_PRequestBuilder.cs
@@ -51,7 +51,7 @@ public StDev_PRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_P.StDev_PPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_P.StDev_PPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SPostRequestBody.cs
index 26790aa7e88..30a37da3179 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SPostRequestBody.cs
@@ -52,7 +52,7 @@ public StDev_SPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_S.StDev_SPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_S.StDev_SPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SRequestBuilder.cs
index b7e18f6d607..e318e421801 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/StDev_S/StDev_SRequestBuilder.cs
@@ -51,7 +51,7 @@ public StDev_SRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_S.StDev_SPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.StDev_S.StDev_SPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizePostRequestBody.cs
index 911c505400b..d4d39517ebc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizePostRequestBody.cs
@@ -84,7 +84,7 @@ public StandardizePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Standardize.StandardizePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Standardize.StandardizePostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("mean", Mean);
             writer.WriteObjectValue<UntypedNode>("standardDev", StandardDev);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizeRequestBuilder.cs
index 18ec83ff61f..1c95929b8c3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Standardize/StandardizeRequestBuilder.cs
@@ -51,7 +51,7 @@ public StandardizeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Standardize.StandardizePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Standardize.StandardizePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstitutePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstitutePostRequestBody.cs
index ddef230e88b..55efce1be7a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstitutePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstitutePostRequestBody.cs
@@ -100,7 +100,7 @@ public SubstitutePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Substitute.SubstitutePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Substitute.SubstitutePostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("instanceNum", InstanceNum);
             writer.WriteObjectValue<UntypedNode>("newText", NewText);
             writer.WriteObjectValue<UntypedNode>("oldText", OldText);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstituteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstituteRequestBuilder.cs
index 256e7771873..c625490930c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstituteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Substitute/SubstituteRequestBuilder.cs
@@ -51,7 +51,7 @@ public SubstituteRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Substitute.SubstitutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Substitute.SubstitutePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalPostRequestBody.cs
index 55011fb517f..36b73a60132 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalPostRequestBody.cs
@@ -68,7 +68,7 @@ public SubtotalPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Subtotal.SubtotalPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Subtotal.SubtotalPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("functionNum", FunctionNum);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalRequestBuilder.cs
index a1e73716a53..fa11783c08c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Subtotal/SubtotalRequestBuilder.cs
@@ -51,7 +51,7 @@ public SubtotalRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Subtotal.SubtotalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Subtotal.SubtotalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumPostRequestBody.cs
index e385bc443ad..353ff057074 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumPostRequestBody.cs
@@ -52,7 +52,7 @@ public SumPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sum.SumPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sum.SumPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumRequestBuilder.cs
index a23fc002d70..53e15962319 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Sum/SumRequestBuilder.cs
@@ -51,7 +51,7 @@ public SumRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sum.SumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Sum.SumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfPostRequestBody.cs
index 7ed8f5df3db..486ae9b067a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfPostRequestBody.cs
@@ -84,7 +84,7 @@ public SumIfPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIf.SumIfPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIf.SumIfPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("criteria", Criteria);
             writer.WriteObjectValue<UntypedNode>("range", Range);
             writer.WriteObjectValue<UntypedNode>("sumRange", SumRange);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfRequestBuilder.cs
index 2be13c4ebb7..cdf0cdc2a34 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIf/SumIfRequestBuilder.cs
@@ -51,7 +51,7 @@ public SumIfRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIf.SumIfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIf.SumIfPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsPostRequestBody.cs
index 9c24037ee84..0c02c875c2e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsPostRequestBody.cs
@@ -68,7 +68,7 @@ public SumIfsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIfs.SumIfsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIfs.SumIfsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("sumRange", SumRange);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsRequestBuilder.cs
index cfdaa254e0e..3f6e717897b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumIfs/SumIfsRequestBuilder.cs
@@ -51,7 +51,7 @@ public SumIfsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIfs.SumIfsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumIfs.SumIfsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqPostRequestBody.cs
index d7f9ed3a072..fb8e9276807 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqPostRequestBody.cs
@@ -52,7 +52,7 @@ public SumSqPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumSq.SumSqPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumSq.SumSqPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqRequestBuilder.cs
index dbe9f8b5724..c05c31bede4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/SumSq/SumSqRequestBuilder.cs
@@ -51,7 +51,7 @@ public SumSqRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumSq.SumSqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.SumSq.SumSqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydPostRequestBody.cs
index 6c3f1c156f9..1a17e78ba1d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydPostRequestBody.cs
@@ -100,7 +100,7 @@ public SydPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Syd.SydPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Syd.SydPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cost", Cost);
             writer.WriteObjectValue<UntypedNode>("life", Life);
             writer.WriteObjectValue<UntypedNode>("per", Per);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydRequestBuilder.cs
index b320bbcc71d..4c2bb93e378 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Syd/SydRequestBuilder.cs
@@ -51,7 +51,7 @@ public SydRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Syd.SydPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Syd.SydPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TPostRequestBody.cs
index f0b2f49431f..8e9b109087c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TPostRequestBody.cs
@@ -52,7 +52,7 @@ public TPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T.TPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T.TPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TRequestBuilder.cs
index 0bf6afa7133..581bfbe80ad 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T/TRequestBuilder.cs
@@ -51,7 +51,7 @@ public TRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(req
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T.TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T.TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistPostRequestBody.cs
index c844e03a973..0a30239e1b9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistPostRequestBody.cs
@@ -84,7 +84,7 @@ public T_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist.T_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist.T_DistPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistRequestBuilder.cs
index 812c6c816ea..adb1d0b1163 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist/T_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public T_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist.T_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist.T_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TPostRequestBody.cs
index 0bcd4a13612..3513bf94cf8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TPostRequestBody.cs
@@ -68,7 +68,7 @@ public T_Dist_2TPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_2T.T_Dist_2TPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_2T.T_Dist_2TPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TRequestBuilder.cs
index d9d345aa429..60556fff4dc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_2T/T_Dist_2TRequestBuilder.cs
@@ -51,7 +51,7 @@ public T_Dist_2TRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_2T.T_Dist_2TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_2T.T_Dist_2TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTPostRequestBody.cs
index a6117b381d4..0384236bfc1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTPostRequestBody.cs
@@ -68,7 +68,7 @@ public T_Dist_RTPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_RT.T_Dist_RTPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_RT.T_Dist_RTPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("x", X);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTRequestBuilder.cs
index 2937d0bfc6a..9b18e5ff7c7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Dist_RT/T_Dist_RTRequestBuilder.cs
@@ -51,7 +51,7 @@ public T_Dist_RTRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_RT.T_Dist_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Dist_RT.T_Dist_RTPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvPostRequestBody.cs
index 8ed894ca7ac..80db1f44286 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvPostRequestBody.cs
@@ -68,7 +68,7 @@ public T_InvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv.T_InvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv.T_InvPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvRequestBuilder.cs
index ecf1c98721c..429e8f8d77b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv/T_InvRequestBuilder.cs
@@ -51,7 +51,7 @@ public T_InvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv.T_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv.T_InvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TPostRequestBody.cs
index 360cb4e36d8..7d91b874a98 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TPostRequestBody.cs
@@ -68,7 +68,7 @@ public T_Inv_2TPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv_2T.T_Inv_2TPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv_2T.T_Inv_2TPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("degFreedom", DegFreedom);
             writer.WriteObjectValue<UntypedNode>("probability", Probability);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TRequestBuilder.cs
index e6beb28cbad..13618be6280 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/T_Inv_2T/T_Inv_2TRequestBuilder.cs
@@ -51,7 +51,7 @@ public T_Inv_2TRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv_2T.T_Inv_2TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.T_Inv_2T.T_Inv_2TPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanPostRequestBody.cs
index eca0a6d2b1e..bb04a5c26a7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanPostRequestBody.cs
@@ -52,7 +52,7 @@ public TanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tan.TanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tan.TanPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanRequestBuilder.cs
index 59ec3cfbf5d..25f75321a58 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tan/TanRequestBuilder.cs
@@ -51,7 +51,7 @@ public TanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tan.TanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tan.TanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhPostRequestBody.cs
index c230501a9cd..0bed1777081 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhPostRequestBody.cs
@@ -52,7 +52,7 @@ public TanhPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tanh.TanhPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tanh.TanhPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhRequestBuilder.cs
index caed752fe0c..bea78320cf4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Tanh/TanhRequestBuilder.cs
@@ -51,7 +51,7 @@ public TanhRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tanh.TanhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Tanh.TanhPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqPostRequestBody.cs
index 5d483b6e2c6..baadb1bd424 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqPostRequestBody.cs
@@ -84,7 +84,7 @@ public TbillEqPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillEq.TbillEqPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillEq.TbillEqPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("discount", Discount);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
             writer.WriteObjectValue<UntypedNode>("settlement", Settlement);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqRequestBuilder.cs
index a3610da94ab..0b2cc540171 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillEq/TbillEqRequestBuilder.cs
@@ -51,7 +51,7 @@ public TbillEqRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillEq.TbillEqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillEq.TbillEqPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPricePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPricePostRequestBody.cs
index eb741db830e..ab4083ba708 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPricePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPricePostRequestBody.cs
@@ -84,7 +84,7 @@ public TbillPricePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillPrice.TbillPricePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillPrice.TbillPricePostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("discount", Discount);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
             writer.WriteObjectValue<UntypedNode>("settlement", Settlement);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPriceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPriceRequestBuilder.cs
index 1ddd33140ee..6a5140a8246 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPriceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillPrice/TbillPriceRequestBuilder.cs
@@ -51,7 +51,7 @@ public TbillPriceRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillPrice.TbillPricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillPrice.TbillPricePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldPostRequestBody.cs
index cb635962707..81be02d2e27 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldPostRequestBody.cs
@@ -84,7 +84,7 @@ public TbillYieldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillYield.TbillYieldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillYield.TbillYieldPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
             writer.WriteObjectValue<UntypedNode>("pr", Pr);
             writer.WriteObjectValue<UntypedNode>("settlement", Settlement);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldRequestBuilder.cs
index a03ff5e73f8..f8aa70cfa49 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TbillYield/TbillYieldRequestBuilder.cs
@@ -51,7 +51,7 @@ public TbillYieldRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillYield.TbillYieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TbillYield.TbillYieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextPostRequestBody.cs
index 76e1c675367..00196442250 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextPostRequestBody.cs
@@ -68,7 +68,7 @@ public TextPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Text.TextPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Text.TextPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("formatText", FormatText);
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextRequestBuilder.cs
index 007b6b4b01e..93b50cd257b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Text/TextRequestBuilder.cs
@@ -51,7 +51,7 @@ public TextRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Text.TextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Text.TextPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimePostRequestBody.cs
index 755de21a6ef..8ffdd4f51e4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimePostRequestBody.cs
@@ -84,7 +84,7 @@ public TimePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Time.TimePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Time.TimePostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("hour", Hour);
             writer.WriteObjectValue<UntypedNode>("minute", Minute);
             writer.WriteObjectValue<UntypedNode>("second", Second);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimeRequestBuilder.cs
index 7ea7dea0579..617b5daf607 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Time/TimeRequestBuilder.cs
@@ -51,7 +51,7 @@ public TimeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Time.TimePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Time.TimePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevaluePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevaluePostRequestBody.cs
index ee94d1789e3..8b6ba28248d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevaluePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevaluePostRequestBody.cs
@@ -52,7 +52,7 @@ public TimevaluePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Timevalue.TimevaluePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Timevalue.TimevaluePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("timeText", TimeText);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevalueRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevalueRequestBuilder.cs
index f9b71a0b02a..195623540f7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevalueRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Timevalue/TimevalueRequestBuilder.cs
@@ -51,7 +51,7 @@ public TimevalueRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Timevalue.TimevaluePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Timevalue.TimevaluePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimPostRequestBody.cs
index ac601d1f5c1..8f5c976fcdb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimPostRequestBody.cs
@@ -52,7 +52,7 @@ public TrimPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trim.TrimPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trim.TrimPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimRequestBuilder.cs
index 302328b2e98..d43c4fe8ace 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trim/TrimRequestBuilder.cs
@@ -51,7 +51,7 @@ public TrimRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trim.TrimPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trim.TrimPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanPostRequestBody.cs
index ce36f7d4b11..d429e2cafef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanPostRequestBody.cs
@@ -68,7 +68,7 @@ public TrimMeanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TrimMean.TrimMeanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TrimMean.TrimMeanPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("percent", Percent);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanRequestBuilder.cs
index d95bbdc4912..acd748f6c4d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TrimMean/TrimMeanRequestBuilder.cs
@@ -51,7 +51,7 @@ public TrimMeanRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TrimMean.TrimMeanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TrimMean.TrimMeanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncPostRequestBody.cs
index b196fd28b3d..b99209389bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncPostRequestBody.cs
@@ -68,7 +68,7 @@ public TruncPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trunc.TruncPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trunc.TruncPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteObjectValue<UntypedNode>("numDigits", NumDigits);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncRequestBuilder.cs
index 3532f5e0f78..0ba0da25877 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Trunc/TruncRequestBuilder.cs
@@ -51,7 +51,7 @@ public TruncRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trunc.TruncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Trunc.TruncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypePostRequestBody.cs
index bc18374b2f7..36eb77e421c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypePostRequestBody.cs
@@ -52,7 +52,7 @@ public TypePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TypeNamespace.TypePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TypeNamespace.TypePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypeRequestBuilder.cs
index d367c3ec947..a597888ce71 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/TypeNamespace/TypeRequestBuilder.cs
@@ -51,7 +51,7 @@ public TypeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TypeNamespace.TypePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.TypeNamespace.TypePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharPostRequestBody.cs
index 40efd2dcddb..1fa2fc5e8bc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnicharPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unichar.UnicharPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unichar.UnicharPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharRequestBuilder.cs
index e463ce92936..e73a51c7bef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unichar/UnicharRequestBuilder.cs
@@ -51,7 +51,7 @@ public UnicharRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unichar.UnicharPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unichar.UnicharPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodePostRequestBody.cs
index 29673e93a53..9c49c0687a2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodePostRequestBody.cs
@@ -52,7 +52,7 @@ public UnicodePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unicode.UnicodePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unicode.UnicodePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodeRequestBuilder.cs
index 4771d794642..438d0558db3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Unicode/UnicodeRequestBuilder.cs
@@ -51,7 +51,7 @@ public UnicodeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unicode.UnicodePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Unicode.UnicodePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperPostRequestBody.cs
index 61ccdc9bab8..505e66a088b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperPostRequestBody.cs
@@ -52,7 +52,7 @@ public UpperPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Upper.UpperPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Upper.UpperPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperRequestBuilder.cs
index e4823c96c8e..05774f5de55 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Upper/UpperRequestBuilder.cs
@@ -51,7 +51,7 @@ public UpperRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Upper.UpperPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Upper.UpperPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarPostRequestBody.cs
index 02f1816e4a8..0564b8c602a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarPostRequestBody.cs
@@ -68,7 +68,7 @@ public UsdollarPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Usdollar.UsdollarPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Usdollar.UsdollarPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("decimals", Decimals);
             writer.WriteObjectValue<UntypedNode>("number", Number);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarRequestBuilder.cs
index ddae6efbca6..ac8c1acadb1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Usdollar/UsdollarRequestBuilder.cs
@@ -51,7 +51,7 @@ public UsdollarRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Usdollar.UsdollarPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Usdollar.UsdollarPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValuePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValuePostRequestBody.cs
index b71d42cf962..69a79ed0f3c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValuePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValuePostRequestBody.cs
@@ -52,7 +52,7 @@ public ValuePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Value.ValuePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Value.ValuePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("text", Text);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValueRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValueRequestBuilder.cs
index 26c69bb9413..346f2856e68 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValueRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Value/ValueRequestBuilder.cs
@@ -51,7 +51,7 @@ public ValueRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Value.ValuePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Value.ValuePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarAPostRequestBody.cs
index e70a39ab160..d62867e6e38 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarAPostRequestBody.cs
@@ -52,7 +52,7 @@ public VarAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarA.VarAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarA.VarAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarARequestBuilder.cs
index cbb3b4ec4b8..5315b45a968 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarA/VarARequestBuilder.cs
@@ -51,7 +51,7 @@ public VarARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarA.VarAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarA.VarAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPAPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPAPostRequestBody.cs
index ce4fc36a770..0fc28e6e706 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPAPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPAPostRequestBody.cs
@@ -52,7 +52,7 @@ public VarPAPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarPA.VarPAPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarPA.VarPAPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPARequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPARequestBuilder.cs
index 6a6c92439b5..7725646393a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPARequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/VarPA/VarPARequestBuilder.cs
@@ -51,7 +51,7 @@ public VarPARequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarPA.VarPAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.VarPA.VarPAPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PPostRequestBody.cs
index 1d8612f2c17..58527720e21 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PPostRequestBody.cs
@@ -52,7 +52,7 @@ public Var_PPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_P.Var_PPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_P.Var_PPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PRequestBuilder.cs
index 37f6f9dfd26..66dc4c6a4c2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_P/Var_PRequestBuilder.cs
@@ -51,7 +51,7 @@ public Var_PRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_P.Var_PPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_P.Var_PPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SPostRequestBody.cs
index b3fc9af88c6..3e97e44955f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SPostRequestBody.cs
@@ -52,7 +52,7 @@ public Var_SPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_S.Var_SPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_S.Var_SPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SRequestBuilder.cs
index e8f80197f89..8692f65ee67 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Var_S/Var_SRequestBuilder.cs
@@ -51,7 +51,7 @@ public Var_SRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_S.Var_SPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Var_S.Var_SPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbPostRequestBody.cs
index 6da34785bba..ccba948ed7a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbPostRequestBody.cs
@@ -148,7 +148,7 @@ public VdbPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vdb.VdbPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vdb.VdbPostRequestBody();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("cost", Cost);
             writer.WriteObjectValue<UntypedNode>("endPeriod", EndPeriod);
             writer.WriteObjectValue<UntypedNode>("factor", Factor);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbRequestBuilder.cs
index dbf3667fcc8..b74a411bc98 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vdb/VdbRequestBuilder.cs
@@ -51,7 +51,7 @@ public VdbRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vdb.VdbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vdb.VdbPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupPostRequestBody.cs
index c5af341eb68..24db36b2a99 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupPostRequestBody.cs
@@ -100,7 +100,7 @@ public VlookupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vlookup.VlookupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vlookup.VlookupPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("colIndexNum", ColIndexNum);
             writer.WriteObjectValue<UntypedNode>("lookupValue", LookupValue);
             writer.WriteObjectValue<UntypedNode>("rangeLookup", RangeLookup);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupRequestBuilder.cs
index b34a523d67f..073f67bfdbd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Vlookup/VlookupRequestBuilder.cs
@@ -51,7 +51,7 @@ public VlookupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vlookup.VlookupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Vlookup.VlookupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumPostRequestBody.cs
index 8b07fe92333..dbda5397b53 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumPostRequestBody.cs
@@ -68,7 +68,7 @@ public WeekNumPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WeekNum.WeekNumPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WeekNum.WeekNumPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("returnType", ReturnType);
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumRequestBuilder.cs
index 067343fd1c5..5d921c5011d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WeekNum/WeekNumRequestBuilder.cs
@@ -51,7 +51,7 @@ public WeekNumRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WeekNum.WeekNumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WeekNum.WeekNumPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayPostRequestBody.cs
index 6bb02993994..c18ee5051a6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayPostRequestBody.cs
@@ -68,7 +68,7 @@ public WeekdayPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weekday.WeekdayPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weekday.WeekdayPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("returnType", ReturnType);
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayRequestBuilder.cs
index d74c6b90585..10514645f91 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weekday/WeekdayRequestBuilder.cs
@@ -51,7 +51,7 @@ public WeekdayRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weekday.WeekdayPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weekday.WeekdayPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistPostRequestBody.cs
index 95d82b7e986..713e22883ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistPostRequestBody.cs
@@ -100,7 +100,7 @@ public Weibull_DistPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weibull_Dist.Weibull_DistPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weibull_Dist.Weibull_DistPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("alpha", Alpha);
             writer.WriteObjectValue<UntypedNode>("beta", Beta);
             writer.WriteObjectValue<UntypedNode>("cumulative", Cumulative);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistRequestBuilder.cs
index efba4cbc30c..cd79058d551 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Weibull_Dist/Weibull_DistRequestBuilder.cs
@@ -51,7 +51,7 @@ public Weibull_DistRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weibull_Dist.Weibull_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Weibull_Dist.Weibull_DistPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayPostRequestBody.cs
index 1c97a680ee6..858b98ec8bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayPostRequestBody.cs
@@ -84,7 +84,7 @@ public WorkDayPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay.WorkDayPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay.WorkDayPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("days", Days);
             writer.WriteObjectValue<UntypedNode>("holidays", Holidays);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayRequestBuilder.cs
index 2928e1ffd56..c7c40b123ec 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay/WorkDayRequestBuilder.cs
@@ -51,7 +51,7 @@ public WorkDayRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay.WorkDayPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay.WorkDayPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlPostRequestBody.cs
index f1926bcca76..d56ec4d4ffc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlPostRequestBody.cs
@@ -100,7 +100,7 @@ public WorkDay_IntlPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay_Intl.WorkDay_IntlPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay_Intl.WorkDay_IntlPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("days", Days);
             writer.WriteObjectValue<UntypedNode>("holidays", Holidays);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlRequestBuilder.cs
index 2721654d0f7..edce393104a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/WorkDay_Intl/WorkDay_IntlRequestBuilder.cs
@@ -51,7 +51,7 @@ public WorkDay_IntlRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay_Intl.WorkDay_IntlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.WorkDay_Intl.WorkDay_IntlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrPostRequestBody.cs
index 33a5af9c1e1..98e30f311aa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrPostRequestBody.cs
@@ -84,7 +84,7 @@ public XirrPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xirr.XirrPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xirr.XirrPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("dates", Dates);
             writer.WriteObjectValue<UntypedNode>("guess", Guess);
             writer.WriteObjectValue<UntypedNode>("values", Values);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrRequestBuilder.cs
index 02c8a69d992..c1453e04dd8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xirr/XirrRequestBuilder.cs
@@ -51,7 +51,7 @@ public XirrRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xirr.XirrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xirr.XirrPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvPostRequestBody.cs
index d91db4e6793..a50c3e31e99 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvPostRequestBody.cs
@@ -84,7 +84,7 @@ public XnpvPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xnpv.XnpvPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xnpv.XnpvPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("dates", Dates);
             writer.WriteObjectValue<UntypedNode>("rate", Rate);
             writer.WriteObjectValue<UntypedNode>("values", Values);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvRequestBuilder.cs
index 4b8e817ab6c..59a2109a35f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xnpv/XnpvRequestBuilder.cs
@@ -51,7 +51,7 @@ public XnpvRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xnpv.XnpvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xnpv.XnpvPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorPostRequestBody.cs
index e269c986381..4fac8de40ae 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorPostRequestBody.cs
@@ -52,7 +52,7 @@ public XorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xor.XorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xor.XorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorRequestBuilder.cs
index 7aa17e68ef7..80d3d25626f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Xor/XorRequestBuilder.cs
@@ -51,7 +51,7 @@ public XorRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xor.XorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Xor.XorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearPostRequestBody.cs
index e42cba4084c..74c59984f61 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearPostRequestBody.cs
@@ -52,7 +52,7 @@ public YearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Year.YearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Year.YearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("serialNumber", SerialNumber);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearRequestBuilder.cs
index 65e26874212..132cc325673 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Year/YearRequestBuilder.cs
@@ -51,7 +51,7 @@ public YearRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Year.YearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Year.YearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracPostRequestBody.cs
index 6c06abf3c16..a0f75806869 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracPostRequestBody.cs
@@ -84,7 +84,7 @@ public YearFracPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YearFrac.YearFracPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YearFrac.YearFracPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("endDate", EndDate);
             writer.WriteObjectValue<UntypedNode>("startDate", StartDate);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracRequestBuilder.cs
index 0788ffaee6f..2b91157fc62 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YearFrac/YearFracRequestBuilder.cs
@@ -51,7 +51,7 @@ public YearFracRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YearFrac.YearFracPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YearFrac.YearFracPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldPostRequestBody.cs
index f231d419876..69518a9d6bd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldPostRequestBody.cs
@@ -148,7 +148,7 @@ public YieldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Yield.YieldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Yield.YieldPostRequestBody();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("frequency", Frequency);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldRequestBuilder.cs
index f94003dc3a8..6a572528096 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Yield/YieldRequestBuilder.cs
@@ -51,7 +51,7 @@ public YieldRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Yield.YieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Yield.YieldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscPostRequestBody.cs
index ac278c0687e..046ea033c9c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscPostRequestBody.cs
@@ -116,7 +116,7 @@ public YieldDiscPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldDisc.YieldDiscPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldDisc.YieldDiscPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
             writer.WriteObjectValue<UntypedNode>("pr", Pr);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscRequestBuilder.cs
index b51ec19077e..2bf7e265147 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldDisc/YieldDiscRequestBuilder.cs
@@ -51,7 +51,7 @@ public YieldDiscRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldDisc.YieldDiscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldDisc.YieldDiscPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatPostRequestBody.cs
index 8a9be62d7e8..459eca48935 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatPostRequestBody.cs
@@ -132,7 +132,7 @@ public YieldMatPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldMat.YieldMatPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldMat.YieldMatPostRequestBody();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("basis", Basis);
             writer.WriteObjectValue<UntypedNode>("issue", Issue);
             writer.WriteObjectValue<UntypedNode>("maturity", Maturity);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatRequestBuilder.cs
index d704bad16af..6b48e6e24a7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/YieldMat/YieldMatRequestBuilder.cs
@@ -51,7 +51,7 @@ public YieldMatRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldMat.YieldMatPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.YieldMat.YieldMatPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestPostRequestBody.cs
index 73ed920c23d..c75a750f4c4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestPostRequestBody.cs
@@ -84,7 +84,7 @@ public Z_TestPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Z_Test.Z_TestPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Z_Test.Z_TestPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("array", Array);
             writer.WriteObjectValue<UntypedNode>("sigma", Sigma);
             writer.WriteObjectValue<UntypedNode>("x", X);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestRequestBuilder.cs
index 02e2cfb1eab..f6dfe31b8e0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Functions/Z_Test/Z_TestRequestBuilder.cs
@@ -51,7 +51,7 @@ public Z_TestRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookFunctionResult> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Z_Test.Z_TestPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Functions.Z_Test.Z_TestPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddPostRequestBody.cs
index 39a14b33c10..d658ac58cb7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddPostRequestBody.cs
@@ -84,7 +84,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<UntypedNode>("reference", Reference);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddRequestBuilder.cs
index b3604c8c6af..2a81429d025 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs
index b53c29393c1..cce6063393c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs
@@ -84,7 +84,7 @@ public AddFormulaLocalPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("formula", Formula);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs
index 9093e6ae019..ac5604ec55b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddFormulaLocalRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index 12c844b62c7..5e5e514dd44 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index 78053743de0..d3d21f66dc3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index 1abce18ecc2..a33f49f06f8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index f5cb15fce83..dd582408bc8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 43f7af0c786..d0dd0bd5ebe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 2e8017e2b14..12dc785d321 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index ef66fa4a665..767a7cdd579 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index 830a4c5666d..c4c73c1a975 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index b73a6f951f9..7ffca4230f7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/RangeRequestBuilder.cs
index 726b8921fcc..8a6f2e9cc5f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Names.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index f1ddaa54805..50b1ba3c026 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/WorkbookNamedItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/WorkbookNamedItemItemRequestBuilder.cs
index 9f652f24d16..d1eae296b85 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/WorkbookNamedItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/Item/WorkbookNamedItemItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PatchAsync(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/NamesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/NamesRequestBuilder.cs
index dfadcd4a767..d07b3d1a2ca 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/NamesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Names/NamesRequestBuilder.cs
@@ -105,7 +105,7 @@ public NamesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PostAsync(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/Item/WorkbookOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/Item/WorkbookOperationItemRequestBuilder.cs
index 8a1bb90312f..3f3126205fe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/Item/WorkbookOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/Item/WorkbookOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookOperation> PatchAsync(global::Microsoft.Graph.Models.WorkbookOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/OperationsRequestBuilder.cs
index a5dcaf064c9..5eb38f819da 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookOperation> PostAsync(global::Microsoft.Graph.Models.WorkbookOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddPostRequestBody.cs
index 57f149a620f..95152e45c93 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddPostRequestBody.cs
@@ -58,7 +58,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("address", Address);
             writer.WriteBoolValue("hasHeaders", HasHeaders);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddRequestBuilder.cs
index 09d12d9f590..d45687e5fac 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Add/AddRequestBuilder.cs
@@ -35,8 +35,8 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         {
         }
         /// <summary>
-        /// Create a new table. The range source address determines the worksheet under which the table will be added. If the table can&apos;t be added (for example, because the address is invalid, or the table would overlap with another table), an error is generated.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/tablecollection-add?view=graph-rest-1.0" />
+        /// Use this API to create a new Table.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/workbook-post-tables?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.WorkbookTable"/></returns>
         /// <param name="body">The request body</param>
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookTable> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -61,7 +61,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.WorkbookTable>(requestInfo, global::Microsoft.Graph.Models.WorkbookTable.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new table. The range source address determines the worksheet under which the table will be added. If the table can&apos;t be added (for example, because the address is invalid, or the table would overlap with another table), an error is generated.
+        /// Use this API to create a new Table.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountGetResponse.cs
index d76beef54fc..ff0ad454f08 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountResponse.cs
index 91cbcc0cae4..8e333c8874f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddPostRequestBody.cs
index f2b1adc2229..ef821197d05 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddPostRequestBody.cs
@@ -74,7 +74,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("index", Index);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<UntypedNode>("values", Values);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddRequestBuilder.cs
index 131e87ee312..7f6cca26eba 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ColumnsRequestBuilder.cs
index c33382c0222..f41d0de5d1f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ColumnsRequestBuilder.cs
@@ -90,7 +90,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PostAsync(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountGetResponse.cs
index 9e7e34e8a66..037112a62fb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountResponse.cs
index c154f420808..3591722068b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
index 7f90323efac..166c934e7cf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
index 6dfb56a78b6..4a7d3a110ff 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
index d420e93a170..287ec2e0f70 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
index 9daa616cbba..5c15f716522 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
index 8a9937caf22..e881ac92df7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs
index cbcd2ebae12..71c47375b8a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
index 1ff400975a4..f60b4fbfc79 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
index 87ce6417412..54d01ec0c47 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs
index ed6f68344c6..a6253918c5d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
index 39f985c4879..6b16fb97c0d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs
index 26c84077be1..62bbad30ad2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs
index 85fb37ed4dc..8712d92fdd1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ApplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookFilterCriteria>("criteria", Criteria);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs
index afabde3de9a..8a60a81437a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs
index 8943b925be8..b7cf76291ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyBottomItemsFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("count", Count);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs
index c17ef8efbd1..a7386afe215 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs
index 1a4b6d51a5e..4a5618f7237 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyBottomPercentFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("percent", Percent);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs
index 4fd00ecbe18..7d42620d435 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs
index 90ee3c4bd09..55197e91d8c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyCellColorFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs
index cacca0ea74c..7532198cb75 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs
index dfbed163114..48e0ac49ea0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs
@@ -84,7 +84,7 @@ public ApplyCustomFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("criteria1", Criteria1);
             writer.WriteStringValue("criteria2", Criteria2);
             writer.WriteStringValue("oper", Oper);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs
index 5fec32a0136..fcaa17e088f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs
index 63fcad3e85e..23f9600ac69 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyDynamicFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("criteria", Criteria);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs
index 61d539a3fec..018025a89b7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs
index c0a3dbf5f6b..ec7cdf75b81 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyFontColorFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs
index a9e28808a80..41b48544e66 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs
index 12f0c02eb25..8956081af36 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs
@@ -53,7 +53,7 @@ public ApplyIconFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookIcon>("icon", Icon);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs
index fb4ead07c0b..1f7b8d78ca0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs
index 6a1753baf50..f4298fc925b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyTopItemsFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("count", Count);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs
index 1299662dc0e..29fa8816284 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs
index 67b737878ea..17a27076fa8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyTopPercentFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("percent", Percent);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs
index 377bec8763f..a69f59e4bf5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs
index 138a37e6b43..a95fb827961 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyValuesFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs
index 809240eb599..29c470d15db 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs
index 97b8554df7b..cea2a40aee8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookFilter> PatchAsync(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
index 12070bfdb8a..531a08f09c7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
index 1dcb322255b..097a71c0287 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
index 59b4b2f1dd1..43638c8d3ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
index 96d2dc6c0c3..87d87b25700 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
index 5d94b868829..7e9e07b5bc0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
index e7b6967b059..c34fd861398 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
index d81048905b6..793df21af9e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
index 80f5e0a2813..2a26f29a5b2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
index 4eeb05955a8..ca1fa4707cd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
index ec538dea04b..5c17fc6fd7d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
index 3161d14e3d9..abd4bd294a3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index 965a4a04e34..a60a10b24c6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index dd635d62a36..906bcbd9685 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index e87f8fc3db0..33903d80443 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index 1fafd5ea073..123c9c8d4e0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 66b6074d734..0003568b429 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 3182ab290b0..29f97e5573f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index e8f91419113..89c504a635f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index fba95374ab0..209eb10b6be 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index 4da7a8489c5..10cf1b3095b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs
index 707c45b6262..1357674bc04 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index ea6092e231f..719ae13bc1c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
index 8cbcb30c48d..a97dd81e256 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
index 5daae9173b9..4927b047ef1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
index 3a39da6b973..09e64ad514c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
index adb00195ff5..d977361a66c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs
index 7f81438da8f..cfe611dd23f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
index 744ce73d9ff..2cb37850df2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
index 2f8d92453ac..601c9db00e7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs
index df6cd37a442..2864aedae1b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
index b792e0a42be..66dc90e61b7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs
index 08637f340aa..c223519a75c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
index b8291c52284..4b40c55748a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Columns.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs
index 2ab5bf23997..d0e633b7a08 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs
index acc04783afb..06ad4e3856e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookFilter> PatchAsync(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
index 2e252cd9a3c..f6b3d2a24f6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
index c341a4ce26c..1f47c1e90d0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
index 20af70bedd5..e71ec59d933 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
index ad317c7c2c3..3910b46ed9a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
index c56508ff9c4..414dfde8f23 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs
index 1b1262925f8..b603d20e637 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
index 0ce67d3788e..f1aa6d13ea3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
index b80fbfc22ae..21c193b3a14 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs
index 4c8ebacba8b..254e71d3212 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
index a37d4c11047..f2023496291 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs
index 3cfc68c3fa9..f183825266e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
index 9fe7678823d..60c9ca63c7b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
index c05ee264afd..656d1d20c1c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
index c329f0b20be..204bfcf776d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
index b6fa48c5446..b625efbe5e1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
index 807f7398b29..809cc383f16 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
index 30dbd3af6bb..f4ab57fcb6b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
index 41b70893ade..bf2dce5eb76 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
index 69a9a207e02..eced6095759 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
index 7dbe7f24397..b625ca8a8e6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
index d274be076df..fa9a7ec9eea 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
index 966e20e1e15..f79182aac36 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index 56d72056e8b..27cd2ebc22d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index 1bc888e9501..71a969bc60b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index fb19cce09c8..0b124871f36 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index 76b67a7f542..b48a9aae284 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 2f91b08e221..9fc511d90ce 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 87df4e954d2..43b330aeeb9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index f7061e441df..1be29abe78f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index 9590b2fa721..c6a709b6862 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index fdfebcf10d6..7f6ba025f26 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/RangeRequestBuilder.cs
index 7999a09bc24..2cee3b13d21 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index a96607ef08a..15491e2ad49 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddPostRequestBody.cs
index eb43b81b68f..ad122192c6e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddPostRequestBody.cs
@@ -58,7 +58,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("index", Index);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddRequestBuilder.cs
index 1b77aa87478..fd68b85fed2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountGetResponse.cs
index d4c05efc837..6a0612cf26b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountResponse.cs
index 9d9b88ef5bc..a26d579c282 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index e3ffc3cb4e6..3e6e3c6a015 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index 414a22e6756..389636c63ff 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index 9a8f52329e3..6b4e5936160 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index e24f5e6c0e5..5d859d42426 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 6191892c5d0..dd6c1b46a1a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 48b2c3a5ae4..5a8bc153966 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index 87aaf4deb3d..3930041b2dd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index 4eae1a86d58..cc8031973a5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index f8496f2a436..bb544332740 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs
index c11323d077c..15e9488cfb3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -253,8 +253,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -265,8 +265,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -276,7 +276,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -286,7 +286,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -296,7 +296,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -325,7 +325,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index 31252a1261d..7f6df366cca 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs
index f36eb4a80e7..fffa3c8977f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/RowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/RowsRequestBuilder.cs
index eb271776b3f..9534c3ea8c9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/RowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Rows/RowsRequestBuilder.cs
@@ -90,7 +90,7 @@ public RowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Rows.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public RowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PostAsync(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs
index ea937352092..b3dd8a0ea90 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs
@@ -75,7 +75,7 @@ public ApplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Sort.Apply.ApplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Sort.Apply.ApplyPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookSortField>("fields", Fields);
             writer.WriteBoolValue("matchCase", MatchCase);
             writer.WriteStringValue("method", Method);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs
index 3fcbf9278a0..af7b0b9b623 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Sort.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.Sort.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/SortRequestBuilder.cs
index 3ef9ebee270..cc0d32f9532 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/Sort/SortRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
index 88ba391e724..79e65ba92e5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
index 03edf5b0669..360ecdf947e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
index 816b1d38e60..5e4772f5327 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
index b43c6f1b91b..03d9f9e8d6c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs
index 692f25eb8fa..307f42c7e1b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
index 84d15ee9459..438745756c5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
index 77fe0eb7c15..3d9d81faa04 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs
index cc0b01b6b48..bbc3d74adb5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
index 5bf15a2166a..d9562e70274 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs
index b6209d426a5..21245ee3273 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
index 2a25098e275..49206739871 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/WorkbookTableItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/WorkbookTableItemRequestBuilder.cs
index 587d673c7cd..2334c444787 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/WorkbookTableItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/Item/WorkbookTableItemRequestBuilder.cs
@@ -162,7 +162,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTable> PatchAsync(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -223,7 +223,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs
index ee84b516c03..711c49dee26 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs
@@ -74,7 +74,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PostAsync(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs
index ed1e8a86301..88bb316e4f1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs
@@ -74,7 +74,7 @@ public RowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PostAsync(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs
index fb6fa66034d..e4915fe59d5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/TablesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/TablesRequestBuilder.cs
index 337dd063484..f006a743f93 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/TablesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Tables/TablesRequestBuilder.cs
@@ -90,7 +90,7 @@ public TablesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Tables.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public TablesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookTable> PostAsync(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/WorkbookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/WorkbookRequestBuilder.cs
index db3d42013fc..6c2670958e0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/WorkbookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/WorkbookRequestBuilder.cs
@@ -158,7 +158,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Workbook> PatchAsync(global::Microsoft.Graph.Models.Workbook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -239,7 +239,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Workbook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddPostRequestBody.cs
index 2ad211f373a..d1778824724 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddRequestBuilder.cs
index ad466f2669b..17292562fdd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookWorksheet> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/CellWithRowWithColumnRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/CellWithRowWithColumnRequestBuilder.cs
index 4d1b52fc477..e0369fe8cc4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/CellWithRowWithColumnRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/CellWithRowWithColumnRequestBuilder.cs
@@ -160,7 +160,7 @@ public partial class CellWithRowWithColumnRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -170,7 +170,7 @@ public partial class CellWithRowWithColumnRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -180,7 +180,7 @@ public partial class CellWithRowWithColumnRequestBuilder : BaseRequestBuilder
         /// <param name="column1">Usage: column={column1}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ColumnWithColumn1.ColumnWithColumn1RequestBuilder ColumnWithColumn1(int? column1)
         {
-            _ = column1 ?? throw new ArgumentNullException(nameof(column1));
+            if(ReferenceEquals(column1, null)) throw new ArgumentNullException(nameof(column1));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ColumnWithColumn1.ColumnWithColumn1RequestBuilder(PathParameters, RequestAdapter, column1);
         }
         /// <summary>
@@ -245,8 +245,8 @@ public CellWithRowWithColumnRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -257,8 +257,8 @@ public CellWithRowWithColumnRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -268,7 +268,7 @@ public CellWithRowWithColumnRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -278,7 +278,7 @@ public CellWithRowWithColumnRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -288,7 +288,7 @@ public CellWithRowWithColumnRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="row1">Usage: row={row1}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.RowWithRow1.RowWithRow1RequestBuilder RowWithRow1(int? row1)
         {
-            _ = row1 ?? throw new ArgumentNullException(nameof(row1));
+            if(ReferenceEquals(row1, null)) throw new ArgumentNullException(nameof(row1));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.RowWithRow1.RowWithRow1RequestBuilder(PathParameters, RequestAdapter, row1);
         }
         /// <summary>
@@ -317,7 +317,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearPostRequestBody.cs
index b22d53b4877..839ced4d577 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearRequestBuilder.cs
index 976154a5027..98010c0bd3e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeletePostRequestBody.cs
index 2b0c230c717..aa976d17ce4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeleteRequestBuilder.cs
index ce9830bf052..215855c3470 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Format/FormatRequestBuilder.cs
index 3b007486d9d..dc43e3e2069 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertPostRequestBody.cs
index 78c92d55905..7b72ea2cf03 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertRequestBuilder.cs
index ea22873f0b6..4f1d0065ad3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergePostRequestBody.cs
index 7cb2ea72b9b..a4770619dbd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergeRequestBuilder.cs
index 29134d1f9b6..e4b89be0c51 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Sort/SortRequestBuilder.cs
index c9887da6b0d..a575da29ec5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/CellWithRowWithColumn/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddPostRequestBody.cs
index 5db32d61ddf..e88cb0a0c0b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddPostRequestBody.cs
@@ -84,7 +84,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("seriesBy", SeriesBy);
             writer.WriteObjectValue<UntypedNode>("sourceData", SourceData);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddRequestBuilder.cs
index 3e40fd58917..4c9e2dd0c2b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookChart> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ChartsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ChartsRequestBuilder.cs
index 717c53792e9..6f84b9ccc80 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ChartsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ChartsRequestBuilder.cs
@@ -91,7 +91,7 @@ public ChartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -121,7 +121,7 @@ public ChartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookChart> PostAsync(global::Microsoft.Graph.Models.WorkbookChart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookChart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountGetResponse.cs
index 32982898308..62139db6a9c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountResponse.cs
index 368f6543a94..a3eb34001ea 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/AxesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/AxesRequestBuilder.cs
index 411744acf9e..2860011a42b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/AxesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/AxesRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxes> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxes body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxes body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/CategoryAxisRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/CategoryAxisRequestBuilder.cs
index 8a47e8a43f8..f3982cc5547 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/CategoryAxisRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/CategoryAxisRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxis> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxis body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxis body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Font/FontRequestBuilder.cs
index fbce6931595..d3f0d6d6057 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/FormatRequestBuilder.cs
index 4434bddc3c7..dc7a38e28f4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Line/LineRequestBuilder.cs
index 5dc0d7d9f29..dc080252fef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/FormatRequestBuilder.cs
index 7432bc19954..f6166bde4e5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
index 7d6067f50fd..277fa09a105 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
index 9703e19c912..f4b733b4b1d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlines> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/FormatRequestBuilder.cs
index ba213783882..4b3d99a2c71 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
index 4e2b50cb40e..fc3e87e81c6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
index a229a32ca21..f120de836b5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlines> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/Font/FontRequestBuilder.cs
index f30e3ca7ebc..bbfc14739e8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/FormatRequestBuilder.cs
index 5051ebab729..d3e35c2db62 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/TitleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/TitleRequestBuilder.cs
index 16d2f7a3750..9cb4a90ea00 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/TitleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/CategoryAxis/Title/TitleRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisTitle> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Font/FontRequestBuilder.cs
index 87acd64ff0c..2c435ac882c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/FormatRequestBuilder.cs
index 3f752b32164..f6551dc7967 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Line/LineRequestBuilder.cs
index ea7ab1192ca..80fd6a93d77 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/FormatRequestBuilder.cs
index 88ad53bb32c..a08d9324af6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
index 11f4f874b47..d4eeaaa2be4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
index b0d4f3d93ed..3f2304c4f3c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlines> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/FormatRequestBuilder.cs
index 25bcf4fb3ae..1a4d58ec174 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
index a55ff5a722e..b7b437a8f52 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
index 4e62b018d2c..13293e61805 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlines> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/SeriesAxisRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/SeriesAxisRequestBuilder.cs
index 3bc21dd2c57..5d4c33fa920 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/SeriesAxisRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/SeriesAxisRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxis> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxis body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxis body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/Font/FontRequestBuilder.cs
index 8ffef1a5bbe..babd832aa1a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/FormatRequestBuilder.cs
index c31324f79b3..390b126c077 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/TitleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/TitleRequestBuilder.cs
index af76148f555..4a545eb25f8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/TitleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/SeriesAxis/Title/TitleRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisTitle> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Font/FontRequestBuilder.cs
index 29580ac37b1..5880d379e50 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/FormatRequestBuilder.cs
index 65714173133..b37ef9ecf7d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Line/LineRequestBuilder.cs
index 31073f1f281..4aa11a1b03a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/FormatRequestBuilder.cs
index c6e8126c534..7200dccf1f9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
index 182dde2bcaf..09ba38da35c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
index 378cc80dde8..1769742e893 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MajorGridlines/MajorGridlinesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlines> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/FormatRequestBuilder.cs
index ee8ff43eb86..e6d33e91c3e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
index fe87ad641d5..b9469454efe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
index f0ec237e0b6..0ffeb435f98 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/MinorGridlines/MinorGridlinesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartGridlines> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartGridlines body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/Font/FontRequestBuilder.cs
index 2d5c5172514..85db0bea6dc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/FormatRequestBuilder.cs
index 56359ce92e3..647ea9bcb3c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/TitleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/TitleRequestBuilder.cs
index 787cac40b9c..ea436313c99 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/TitleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/Title/TitleRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxisTitle> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxisTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxisTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/ValueAxisRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/ValueAxisRequestBuilder.cs
index 87c45d2886c..99093186b84 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/ValueAxisRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Axes/ValueAxis/ValueAxisRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxis> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxis body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxis body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/DataLabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/DataLabelsRequestBuilder.cs
index 761912caa24..92c4171de7e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/DataLabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/DataLabelsRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartDataLabels> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartDataLabels body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartDataLabels body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/FillRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/FillRequestBuilder.cs
index 96ad175f735..fa9b5590bca 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/FillRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/FillRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFill> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
index b3e5f49551c..9d085271097 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetSolidColorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.DataLabels.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.DataLabels.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
index 58cb5c39af1..5bbb6dc5769 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.DataLabels.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.DataLabels.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Font/FontRequestBuilder.cs
index 0fdfcfb9e77..04c9051b491 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/FormatRequestBuilder.cs
index 0fb62b9f601..4f99b3a3580 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/DataLabels/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartDataLabelFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartDataLabelFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartDataLabelFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/FillRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/FillRequestBuilder.cs
index bf3f232a8f6..a21e1cf32c1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/FillRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/FillRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFill> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
index a1c54763924..8d8f865efd4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetSolidColorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
index 8736a0d664f..931c3149fc7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Font/FontRequestBuilder.cs
index 6e86e10d85f..1009d3c4f76 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/FormatRequestBuilder.cs
index a41afa99360..0dc4db5a910 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAreaFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAreaFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAreaFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageGetResponse.cs
index 7b1ab6a699e..22faea218ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageGetResponse.cs
@@ -52,7 +52,7 @@ public ImageGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Image.ImageGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Image.ImageGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageResponse.cs
index 1ff76e7b47a..5de819ca790 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Image/ImageResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Image.ImageResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Image.ImageResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthGetResponse.cs
index 011119a8ee2..9f75ddcb04c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidth.ImageWithWidthGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidth.ImageWithWidthGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthResponse.cs
index d9bf4427ba7..2d43420d115 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidth/ImageWithWidthResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthResponse : global::Microsoft.Graph.Drives.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidth.ImageWithWidthResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidth.ImageWithWidthResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
index 08ab1dd26fb..3df7c7d5029 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthWithHeightGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeight.ImageWithWidthWithHeightGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeight.ImageWithWidthWithHeightGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
index 3c1869c6941..af3881d2807 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthWithHeightResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeight.ImageWithWidthWithHeightResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeight.ImageWithWidthWithHeightResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
index edc8b4d16b8..9d8f1d80db8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthWithHeightWithFittingModeGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
index e31c9a67bdd..e31dca6d80e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthWithHeightWithFittingModeResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/FillRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/FillRequestBuilder.cs
index 12d607e4bda..45e84456640 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/FillRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/FillRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFill> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
index 14e96fb2ab4..1a3d6981701 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetSolidColorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Legend.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Legend.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
index 755f82de9df..7eb5715afbb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Legend.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Legend.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Font/FontRequestBuilder.cs
index 224654c2a99..4edd557c86c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/FormatRequestBuilder.cs
index 4fe9dd8faff..7f2151ea215 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLegendFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLegendFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLegendFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/LegendRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/LegendRequestBuilder.cs
index 6a376b799c4..ae14506c9e6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/LegendRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Legend/LegendRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLegend> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLegend body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLegend body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountGetResponse.cs
index 6f9b53d2d06..20e3031019a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountResponse.cs
index 62de44c66d5..c0ff0fbaa1f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/FillRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/FillRequestBuilder.cs
index edd4303494d..1effabdb32b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/FillRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/FillRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFill> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
index d185078a81e..cdce6c25af7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetSolidColorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
index 4881ddfd194..7e37e338d32 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/FormatRequestBuilder.cs
index 0aeb6ffc439..357670e51f8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartSeriesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartSeriesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartSeriesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Line/LineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Line/LineRequestBuilder.cs
index 14fe25cf22a..f276a277e65 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Line/LineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Format/Line/LineRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLineFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLineFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountGetResponse.cs
index 5e543006864..9190d629354 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountResponse.cs
index 222af16801c..0c7aa5733e3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/FillRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/FillRequestBuilder.cs
index 2901f2bafbf..f6afc375257 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/FillRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/FillRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFill> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
index 4bcce3f29a5..cc71da38559 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetSolidColorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
index e0003bc90e4..e4a3e22c4ef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.Item.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/FormatRequestBuilder.cs
index 81fa403caf5..ff491b77683 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/Format/FormatRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartPointFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartPointFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartPointFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/WorkbookChartPointItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/WorkbookChartPointItemRequestBuilder.cs
index 706a47f0f27..ed635f9104d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/WorkbookChartPointItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/Item/WorkbookChartPointItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartPoint> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartPoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartPoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/ItemAtWithIndex/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/ItemAtWithIndex/Format/FormatRequestBuilder.cs
index 48f9394d5e4..0a302345947 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/ItemAtWithIndex/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/ItemAtWithIndex/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartPointFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartPointFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartPointFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/PointsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/PointsRequestBuilder.cs
index 1063efd8b4a..20411dc6360 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/PointsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/Points/PointsRequestBuilder.cs
@@ -84,7 +84,7 @@ public PointsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.Item.Points.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -104,7 +104,7 @@ public PointsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookChartPoint> PostAsync(global::Microsoft.Graph.Models.WorkbookChartPoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookChartPoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/WorkbookChartSeriesItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/WorkbookChartSeriesItemRequestBuilder.cs
index 53290214f93..1128efdefd9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/WorkbookChartSeriesItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/Item/WorkbookChartSeriesItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartSeries> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Format/FormatRequestBuilder.cs
index ea36ba70a3b..fa149584408 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartSeriesFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartSeriesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartSeriesFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Points/PointsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Points/PointsRequestBuilder.cs
index 4a918757562..3f72dc87524 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Points/PointsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/ItemAtWithIndex/Points/PointsRequestBuilder.cs
@@ -74,7 +74,7 @@ public PointsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookChartPoint> PostAsync(global::Microsoft.Graph.Models.WorkbookChartPoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookChartPoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/SeriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/SeriesRequestBuilder.cs
index 3bcd6cb83a1..5d21305a8cd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/SeriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Series/SeriesRequestBuilder.cs
@@ -84,7 +84,7 @@ public SeriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Series.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -104,7 +104,7 @@ public SeriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookChartSeries> PostAsync(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataPostRequestBody.cs
index 1e661b061f2..450769df1a7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataPostRequestBody.cs
@@ -68,7 +68,7 @@ public SetDataPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetData.SetDataPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetData.SetDataPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("seriesBy", SeriesBy);
             writer.WriteObjectValue<UntypedNode>("sourceData", SourceData);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataRequestBuilder.cs
index dca4fcb35f4..f9170d25312 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetData/SetDataRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetData.SetDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetData.SetDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionPostRequestBody.cs
index d79adc82764..7a30b195984 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionPostRequestBody.cs
@@ -68,7 +68,7 @@ public SetPositionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetPosition.SetPositionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetPosition.SetPositionPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endCell", EndCell);
             writer.WriteObjectValue<UntypedNode>("startCell", StartCell);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionRequestBuilder.cs
index 7b58dec9813..03c28f9ef23 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/SetPosition/SetPositionRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetPosition.SetPositionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.SetPosition.SetPositionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/FillRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/FillRequestBuilder.cs
index 612bca5d030..644a27a8dae 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/FillRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/FillRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFill> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFill body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
index 7a576a16279..774fd053343 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetSolidColorPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Title.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Title.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
index 6873a4cdcc9..8d2b715e7aa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Fill/SetSolidColor/SetSolidColorRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Title.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.Title.Format.Fill.SetSolidColor.SetSolidColorPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Font/FontRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Font/FontRequestBuilder.cs
index c9c95ff4281..0a6f7a13a73 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Font/FontRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/Font/FontRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartFont> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartFont body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/FormatRequestBuilder.cs
index 1e5a1160773..8d2cd603834 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/Format/FormatRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartTitleFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartTitleFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/TitleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/TitleRequestBuilder.cs
index bd16a6206ee..cbd65caeb59 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/TitleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/Title/TitleRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartTitle> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/WorkbookChartItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/WorkbookChartItemRequestBuilder.cs
index 458a2237239..a97a9cdfd17 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/WorkbookChartItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/Item/WorkbookChartItemRequestBuilder.cs
@@ -149,7 +149,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         /// <param name="width">Usage: width={width}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidth.ImageWithWidthRequestBuilder ImageWithWidth(int? width)
         {
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidth.ImageWithWidthRequestBuilder(PathParameters, RequestAdapter, width);
         }
         /// <summary>
@@ -160,8 +160,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         /// <param name="width">Usage: width={width}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeight.ImageWithWidthWithHeightRequestBuilder ImageWithWidthWithHeight(int? height, int? width)
         {
-            _ = height ?? throw new ArgumentNullException(nameof(height));
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(height, null)) throw new ArgumentNullException(nameof(height));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeight.ImageWithWidthWithHeightRequestBuilder(PathParameters, RequestAdapter, height, width);
         }
         /// <summary>
@@ -174,8 +174,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeRequestBuilder ImageWithWidthWithHeightWithFittingMode(string fittingMode, int? height, int? width)
         {
             if(string.IsNullOrEmpty(fittingMode)) throw new ArgumentNullException(nameof(fittingMode));
-            _ = height ?? throw new ArgumentNullException(nameof(height));
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(height, null)) throw new ArgumentNullException(nameof(height));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.Item.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeRequestBuilder(PathParameters, RequestAdapter, fittingMode, height, width);
         }
         /// <summary>
@@ -195,7 +195,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChart> PatchAsync(global::Microsoft.Graph.Models.WorkbookChart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -256,7 +256,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Axes/AxesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Axes/AxesRequestBuilder.cs
index 5c447f22256..4a9a7ad31da 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Axes/AxesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Axes/AxesRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxes> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxes body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxes body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/DataLabels/DataLabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/DataLabels/DataLabelsRequestBuilder.cs
index d61557ba9ff..56a9a1d93d7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/DataLabels/DataLabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/DataLabels/DataLabelsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartDataLabels> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartDataLabels body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartDataLabels body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Format/FormatRequestBuilder.cs
index 4fc0272f486..d794a8e5dbc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAreaFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAreaFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAreaFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageGetResponse.cs
index d69ed10b923..d0b46cab139 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageGetResponse.cs
@@ -52,7 +52,7 @@ public ImageGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.Image.ImageGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.Image.ImageGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageResponse.cs
index 120a31a5085..38d93075291 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Image/ImageResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.Image.ImageResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.Image.ImageResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthGetResponse.cs
index d075f8433c6..3230d25db4c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidth.ImageWithWidthGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidth.ImageWithWidthGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthResponse.cs
index 656c28a8d7c..9e4cabef93d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidth/ImageWithWidthResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthResponse : global::Microsoft.Graph.Drives.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidth.ImageWithWidthResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidth.ImageWithWidthResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
index c2c88eb68c9..9f4a4443d19 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthWithHeightGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeight.ImageWithWidthWithHeightGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeight.ImageWithWidthWithHeightGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
index d4e11281fc5..001c53d0b6d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthWithHeightResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeight.ImageWithWidthWithHeightResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeight.ImageWithWidthWithHeightResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
index b0814456798..92109678d64 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthWithHeightWithFittingModeGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
index ca783b6cd5b..f7f5d0d834c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthWithHeightWithFittingModeResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ItemAtWithIndexRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ItemAtWithIndexRequestBuilder.cs
index 6333f50510a..e2cf23fede4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ItemAtWithIndexRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/ItemAtWithIndexRequestBuilder.cs
@@ -130,7 +130,7 @@ public ItemAtWithIndexRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         /// <param name="width">Usage: width={width}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidth.ImageWithWidthRequestBuilder ImageWithWidth(int? width)
         {
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidth.ImageWithWidthRequestBuilder(PathParameters, RequestAdapter, width);
         }
         /// <summary>
@@ -141,8 +141,8 @@ public ItemAtWithIndexRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         /// <param name="width">Usage: width={width}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeight.ImageWithWidthWithHeightRequestBuilder ImageWithWidthWithHeight(int? height, int? width)
         {
-            _ = height ?? throw new ArgumentNullException(nameof(height));
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(height, null)) throw new ArgumentNullException(nameof(height));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeight.ImageWithWidthWithHeightRequestBuilder(PathParameters, RequestAdapter, height, width);
         }
         /// <summary>
@@ -155,8 +155,8 @@ public ItemAtWithIndexRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeRequestBuilder ImageWithWidthWithHeightWithFittingMode(string fittingMode, int? height, int? width)
         {
             if(string.IsNullOrEmpty(fittingMode)) throw new ArgumentNullException(nameof(fittingMode));
-            _ = height ?? throw new ArgumentNullException(nameof(height));
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(height, null)) throw new ArgumentNullException(nameof(height));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeRequestBuilder(PathParameters, RequestAdapter, fittingMode, height, width);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Legend/LegendRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Legend/LegendRequestBuilder.cs
index fe5d5758f84..d0e33648a21 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Legend/LegendRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Legend/LegendRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLegend> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLegend body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLegend body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Series/SeriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Series/SeriesRequestBuilder.cs
index 58c9d65cba7..f312e9d9a4b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Series/SeriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Series/SeriesRequestBuilder.cs
@@ -74,7 +74,7 @@ public SeriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookChartSeries> PostAsync(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataPostRequestBody.cs
index 727a89c2b97..09dd847acff 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataPostRequestBody.cs
@@ -68,7 +68,7 @@ public SetDataPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetData.SetDataPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetData.SetDataPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("seriesBy", SeriesBy);
             writer.WriteObjectValue<UntypedNode>("sourceData", SourceData);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataRequestBuilder.cs
index 0baa06f7c90..30b05593a00 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetData/SetDataRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetData.SetDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetData.SetDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionPostRequestBody.cs
index e8cdfd5fade..9b82328fe7c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionPostRequestBody.cs
@@ -68,7 +68,7 @@ public SetPositionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetPosition.SetPositionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetPosition.SetPositionPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endCell", EndCell);
             writer.WriteObjectValue<UntypedNode>("startCell", StartCell);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionRequestBuilder.cs
index ce48f715a38..a17e488041e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/SetPosition/SetPositionRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetPosition.SetPositionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemAtWithIndex.SetPosition.SetPositionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Title/TitleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Title/TitleRequestBuilder.cs
index ccba54dee35..590f49dcafd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Title/TitleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemAtWithIndex/Title/TitleRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartTitle> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Axes/AxesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Axes/AxesRequestBuilder.cs
index 8a3fd2d9155..fc72a74d2f8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Axes/AxesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Axes/AxesRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAxes> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAxes body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAxes body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/DataLabels/DataLabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/DataLabels/DataLabelsRequestBuilder.cs
index 821a60e936c..3755413d152 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/DataLabels/DataLabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/DataLabels/DataLabelsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartDataLabels> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartDataLabels body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartDataLabels body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Format/FormatRequestBuilder.cs
index d3d5f6e0861..9aa9695b700 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartAreaFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartAreaFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartAreaFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageGetResponse.cs
index 9b26eafae20..eff7ed7bff5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageGetResponse.cs
@@ -52,7 +52,7 @@ public ImageGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.Image.ImageGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.Image.ImageGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageResponse.cs
index 0ad33af9978..af7a8f1f543 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Image/ImageResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.Image.ImageResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.Image.ImageResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthGetResponse.cs
index ec098677c4b..817ceb313b7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidth.ImageWithWidthGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidth.ImageWithWidthGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthResponse.cs
index 0b1e4aa14cc..2aa9374d705 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidth/ImageWithWidthResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthResponse : global::Microsoft.Graph.Drives.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidth.ImageWithWidthResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidth.ImageWithWidthResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
index 48eef9a4f82..0953d7254f4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthWithHeightGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeight.ImageWithWidthWithHeightGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeight.ImageWithWidthWithHeightGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
index 459a7389457..be831c97d10 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeight/ImageWithWidthWithHeightResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthWithHeightResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeight.ImageWithWidthWithHeightResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeight.ImageWithWidthWithHeightResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
index 866aa0ebf33..b2117b92c77 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeGetResponse.cs
@@ -52,7 +52,7 @@ public ImageWithWidthWithHeightWithFittingModeGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
index 7623f0b00bb..83da981e591 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ImageWithWidthWithHeightWithFittingMode/ImageWithWidthWithHeightWithFittingModeResponse.cs
@@ -20,7 +20,7 @@ public partial class ImageWithWidthWithHeightWithFittingModeResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ItemWithNameRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ItemWithNameRequestBuilder.cs
index c8378fd3c9e..3eac5102bd6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ItemWithNameRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/ItemWithNameRequestBuilder.cs
@@ -129,7 +129,7 @@ public ItemWithNameRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         /// <param name="width">Usage: width={width}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidth.ImageWithWidthRequestBuilder ImageWithWidth(int? width)
         {
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidth.ImageWithWidthRequestBuilder(PathParameters, RequestAdapter, width);
         }
         /// <summary>
@@ -140,8 +140,8 @@ public ItemWithNameRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         /// <param name="width">Usage: width={width}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeight.ImageWithWidthWithHeightRequestBuilder ImageWithWidthWithHeight(int? height, int? width)
         {
-            _ = height ?? throw new ArgumentNullException(nameof(height));
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(height, null)) throw new ArgumentNullException(nameof(height));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeight.ImageWithWidthWithHeightRequestBuilder(PathParameters, RequestAdapter, height, width);
         }
         /// <summary>
@@ -154,8 +154,8 @@ public ItemWithNameRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeRequestBuilder ImageWithWidthWithHeightWithFittingMode(string fittingMode, int? height, int? width)
         {
             if(string.IsNullOrEmpty(fittingMode)) throw new ArgumentNullException(nameof(fittingMode));
-            _ = height ?? throw new ArgumentNullException(nameof(height));
-            _ = width ?? throw new ArgumentNullException(nameof(width));
+            if(ReferenceEquals(height, null)) throw new ArgumentNullException(nameof(height));
+            if(ReferenceEquals(width, null)) throw new ArgumentNullException(nameof(width));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.ImageWithWidthWithHeightWithFittingMode.ImageWithWidthWithHeightWithFittingModeRequestBuilder(PathParameters, RequestAdapter, fittingMode, height, width);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Legend/LegendRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Legend/LegendRequestBuilder.cs
index 1f1d9b01508..1d7c29ff103 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Legend/LegendRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Legend/LegendRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartLegend> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartLegend body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartLegend body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Series/SeriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Series/SeriesRequestBuilder.cs
index ae512d8e903..7c34e624923 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Series/SeriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Series/SeriesRequestBuilder.cs
@@ -74,7 +74,7 @@ public SeriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookChartSeries> PostAsync(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookChartSeries body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataPostRequestBody.cs
index c8c0def06c5..43a382fa7e5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataPostRequestBody.cs
@@ -68,7 +68,7 @@ public SetDataPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetData.SetDataPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetData.SetDataPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("seriesBy", SeriesBy);
             writer.WriteObjectValue<UntypedNode>("sourceData", SourceData);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataRequestBuilder.cs
index 6bba4486206..2af4bd23696 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetData/SetDataRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetData.SetDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetData.SetDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionPostRequestBody.cs
index ee5a30d9c08..6c97fca2284 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionPostRequestBody.cs
@@ -68,7 +68,7 @@ public SetPositionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetPosition.SetPositionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetPosition.SetPositionPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("endCell", EndCell);
             writer.WriteObjectValue<UntypedNode>("startCell", StartCell);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionRequestBuilder.cs
index f12dbee0d2b..23047e3ef08 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/SetPosition/SetPositionRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetPosition.SetPositionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Charts.ItemWithName.SetPosition.SetPositionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Title/TitleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Title/TitleRequestBuilder.cs
index 38ee5338c19..b283150b1c1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Title/TitleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Charts/ItemWithName/Title/TitleRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookChartTitle> PatchAsync(global::Microsoft.Graph.Models.WorkbookChartTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookChartTitle body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddPostRequestBody.cs
index ab84579b77d..d0d0a7b7093 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddPostRequestBody.cs
@@ -84,7 +84,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<UntypedNode>("reference", Reference);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddRequestBuilder.cs
index 68bb55c535e..a1f2b36607e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs
index 091d1e86f0c..6340a4d7a46 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalPostRequestBody.cs
@@ -84,7 +84,7 @@ public AddFormulaLocalPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("formula", Formula);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs
index 91087351f4c..dddbaa6295d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/AddFormulaLocal/AddFormulaLocalRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddFormulaLocalRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.AddFormulaLocal.AddFormulaLocalPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index 71bf2604960..295590182d2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index b45f918976d..41823661390 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index 52b9897d564..bc6df9b0301 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index c40e57c7bc2..509d1299bd1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 4b3867756b0..25459009090 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 0161ffd25a8..a40ec60c7c0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index dd6b986635e..b645ba28a84 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index 17e7d10e212..94f1ace86bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index 525a85d7e01..b93b325ad30 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/RangeRequestBuilder.cs
index 90ed8c416f3..4a4b307b79f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Names.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index 2c7bce0fcab..3ae4e8710f2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/WorkbookNamedItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/WorkbookNamedItemItemRequestBuilder.cs
index 0ab81eac986..375452e43ab 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/WorkbookNamedItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/Item/WorkbookNamedItemItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PatchAsync(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/NamesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/NamesRequestBuilder.cs
index aa1654e2dce..df51675dd50 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/NamesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Names/NamesRequestBuilder.cs
@@ -105,7 +105,7 @@ public NamesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.WorkbookNamedItem> PostAsync(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookNamedItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/Item/WorkbookPivotTableItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/Item/WorkbookPivotTableItemRequestBuilder.cs
index 9538307783e..c7e88018cfc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/Item/WorkbookPivotTableItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/Item/WorkbookPivotTableItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookPivotTable> PatchAsync(global::Microsoft.Graph.Models.WorkbookPivotTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookPivotTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/PivotTablesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/PivotTablesRequestBuilder.cs
index d380a61eabd..269b40d9729 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/PivotTablesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/PivotTables/PivotTablesRequestBuilder.cs
@@ -99,7 +99,7 @@ public PivotTablesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.WorkbookPivotTable> PostAsync(global::Microsoft.Graph.Models.WorkbookPivotTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookPivotTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectPostRequestBody.cs
index ad57f90537a..b96e873f57b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectPostRequestBody.cs
@@ -53,7 +53,7 @@ public ProtectPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Protection.Protect.ProtectPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Protection.Protect.ProtectPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookWorksheetProtectionOptions>("options", Options);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectRequestBuilder.cs
index 79a5f4bd69e..744717934d7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/Protect/ProtectRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Protection.Protect.ProtectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Protection.Protect.ProtectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/ProtectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/ProtectionRequestBuilder.cs
index 345b3cc607c..011644ab72b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/ProtectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Protection/ProtectionRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookWorksheetProtection> PatchAsync(global::Microsoft.Graph.Models.WorkbookWorksheetProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookWorksheetProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index cae76aae9be..2609578bf43 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index 5de8ab88990..7c07ed6cbef 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index 21f9ba835ee..03767cea5a0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index 437e572e9af..90d13b81dc0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 5d51edcdcf0..4371270be89 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index dda23e7fd97..14336290766 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index 373ac7e7408..fbdfd38e03c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index 14f26a792f0..c7089af18f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index 6d9ce2c72b7..eaf16273779 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/RangeRequestBuilder.cs
index d2e453ce7db..2e9a2825787 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -253,8 +253,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -265,8 +265,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -276,7 +276,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -286,7 +286,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -296,7 +296,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -325,7 +325,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index 0550334562d..945534234ba 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearPostRequestBody.cs
index f2ddd134648..ad94990e0a2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearRequestBuilder.cs
index 7eb1caff91c..c8861798ae8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeletePostRequestBody.cs
index ddcaf267015..38f6f1ab9af 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeleteRequestBuilder.cs
index e54cfd00fe8..0ad479d7a2d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Format/FormatRequestBuilder.cs
index 8bbebada53b..7e95cc50cb9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertPostRequestBody.cs
index 2b14917341d..1189f2b0f64 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertRequestBuilder.cs
index 7be64a64567..675c09f4a99 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergePostRequestBody.cs
index d9245ce70ce..ae30abb901c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergeRequestBuilder.cs
index f6e21ffe4ea..53eea0c7283 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/RangeWithAddressRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/RangeWithAddressRequestBuilder.cs
index c1884d01b7b..2b0f91cf3e3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/RangeWithAddressRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/RangeWithAddressRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeWithAddressRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeWithAddressRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeWithAddressRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeWithAddressRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -255,8 +255,8 @@ public RangeWithAddressRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -267,8 +267,8 @@ public RangeWithAddressRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -278,7 +278,7 @@ public RangeWithAddressRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -288,7 +288,7 @@ public RangeWithAddressRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -298,7 +298,7 @@ public RangeWithAddressRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -327,7 +327,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.RangeWithAddress.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Sort/SortRequestBuilder.cs
index 52233e5cdc8..c1896d313c8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/RangeWithAddress/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddPostRequestBody.cs
index 354731fb562..c4af8814b01 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddPostRequestBody.cs
@@ -58,7 +58,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("address", Address);
             writer.WriteBoolValue("hasHeaders", HasHeaders);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddRequestBuilder.cs
index c0061f3d851..013b744efd8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Add/AddRequestBuilder.cs
@@ -35,8 +35,8 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         {
         }
         /// <summary>
-        /// Create a new table. The range source address determines the worksheet under which the table will be added. If the table can&apos;t be added (for example, because the address is invalid, or the table would overlap with another table), an error is generated.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/tablecollection-add?view=graph-rest-1.0" />
+        /// Use this API to create a new Table.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/workbook-post-tables?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.WorkbookTable"/></returns>
         /// <param name="body">The request body</param>
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookTable> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -61,7 +61,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.WorkbookTable>(requestInfo, global::Microsoft.Graph.Models.WorkbookTable.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new table. The range source address determines the worksheet under which the table will be added. If the table can&apos;t be added (for example, because the address is invalid, or the table would overlap with another table), an error is generated.
+        /// Use this API to create a new Table.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountGetResponse.cs
index 7a683083753..73eac182266 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountResponse.cs
index 144bd6e58e1..9e3c5d23e48 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddPostRequestBody.cs
index 021f837b571..7d95defbac5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddPostRequestBody.cs
@@ -74,7 +74,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("index", Index);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<UntypedNode>("values", Values);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddRequestBuilder.cs
index 30bd8f19913..ca38815400e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ColumnsRequestBuilder.cs
index 1a8c03549fa..95dc70b9c54 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ColumnsRequestBuilder.cs
@@ -90,7 +90,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PostAsync(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountGetResponse.cs
index 4938a4af67b..cc04524b91b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountResponse.cs
index 2c1f60f7726..d91363f6ddc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
index 275c643e244..7bee0bff83c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
index 635c25a8af6..7b0533842ed 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
index 1fc3ea5c288..ba8f27b2de6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
index 5662506262e..dfb8b43412c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
index cbdd5ee585a..171ddac713f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs
index 648bfa4d411..3265589b5f7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
index 4090664b2f5..840da7d7afe 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
index 1471611005e..9330e9b6627 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs
index 7319e93fa2b..a0613c19654 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
index aecca3c1701..ead62975492 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs
index c5345f17ba2..f9d658143e7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/DataBodyRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs
index b181ec0d702..38c7193b9b0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ApplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookFilterCriteria>("criteria", Criteria);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs
index fc92f5ab94a..4d249deaa84 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/Apply/ApplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs
index decde5dca17..29b3536574e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyBottomItemsFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("count", Count);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs
index c077de65887..96c2ed5f5b2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomItemsFilter/ApplyBottomItemsFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomItemsFilter.ApplyBottomItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs
index 59700b32585..a5ba7a6c5d5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyBottomPercentFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("percent", Percent);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs
index df55a4d3a18..0dc4345824a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyBottomPercentFilter/ApplyBottomPercentFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyBottomPercentFilter.ApplyBottomPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs
index 154f9633043..3931e7eb31a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyCellColorFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs
index 2be8114b16f..035f384d66d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCellColorFilter/ApplyCellColorFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCellColorFilter.ApplyCellColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs
index 8735af3abf1..d186aad57bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterPostRequestBody.cs
@@ -84,7 +84,7 @@ public ApplyCustomFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("criteria1", Criteria1);
             writer.WriteStringValue("criteria2", Criteria2);
             writer.WriteStringValue("oper", Oper);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs
index 330db0e2681..bcfd1702ca1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyCustomFilter/ApplyCustomFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyCustomFilter.ApplyCustomFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs
index f068738c7ff..3c751c51710 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyDynamicFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("criteria", Criteria);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs
index f670ae9ba90..632ce2d6c42 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyDynamicFilter/ApplyDynamicFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyDynamicFilter.ApplyDynamicFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs
index dbe751da50e..3051fc4f51e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyFontColorFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs
index facc15dded8..a9031b3d955 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyFontColorFilter/ApplyFontColorFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyFontColorFilter.ApplyFontColorFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs
index 360e8e0a449..e88937f99e7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterPostRequestBody.cs
@@ -53,7 +53,7 @@ public ApplyIconFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookIcon>("icon", Icon);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs
index bc4e72c7215..331b45ee983 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyIconFilter/ApplyIconFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyIconFilter.ApplyIconFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs
index 801de19bf53..9bc1c20f33f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyTopItemsFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("count", Count);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs
index 8e3eb6fd3dc..e7e972118f5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopItemsFilter/ApplyTopItemsFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopItemsFilter.ApplyTopItemsFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs
index 5d9e8d7805c..e5d48f105ba 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterPostRequestBody.cs
@@ -42,7 +42,7 @@ public ApplyTopPercentFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("percent", Percent);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs
index 5bdc81dae08..9b46e56150f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyTopPercentFilter/ApplyTopPercentFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyTopPercentFilter.ApplyTopPercentFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs
index 8363d2ed5bf..49d3a26f39c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyValuesFilterPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs
index 807740a5d73..e7a4a10ffc3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/ApplyValuesFilter/ApplyValuesFilterRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.Filter.ApplyValuesFilter.ApplyValuesFilterPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs
index c5b468e3010..09f4a16cfa9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/Filter/FilterRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookFilter> PatchAsync(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
index f33910f9b3c..89a4fdf43ff 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
index 27f9e3b9198..ae4a42fe559 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
index 4380e3a5346..46d10e5d932 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
index c866e395023..06ba75b71b0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
index 89c12d72de7..fc470255939 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
index eec4d3912fb..be16083c7d6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
index 8633220c91b..ef78435a456 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
index 2fc2a6bda5f..77f2c0c5903 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
index b6f714f7ca2..54f9091095e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
index e944c862f06..8aa77bd8496 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
index f51eec146d1..5bc5a0c63bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index 8b85c6bf371..87d8b44cf36 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index e33c3c37e96..f6eee902bac 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index a01955aec2d..f0fe5232d85 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index 652c9e16819..eb7c93f3298 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index e6a8f05ea01..241118a6a81 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 28c102e176d..8483c0bda06 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index f5e057af345..fd49dbc3360 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index 789a60bbe19..afd07aa77cf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index bf863ce5b9a..d56de08d97f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs
index 24680cb8fa5..43965bff4f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index ddb53242cfe..e7a932a431b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
index f22ab38fcb8..18dc0301b98 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
index fbb7c594e6c..fbfa59d4aa2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
index d5c42dffb17..b214630a47a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
index 9cb963b4e4c..f51f6150037 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs
index 02a45b68b39..54fac2e3502 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
index fc43691b429..af6aec901a6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
index 1f9d11edd3c..69055811043 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs
index 1e2d1dd3b2c..bd27532ac0d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
index 3a264380a7a..c07b9004827 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs
index e38a82671b3..d1854f31b60 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
index 686e06d31c1..70882d57bfa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Columns.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs
index ce62bd3ad1d..1251c17c7c9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/Item/WorkbookTableColumnItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs
index 102af5df623..42b67c9861d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Columns/ItemAtWithIndex/Filter/FilterRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookFilter> PatchAsync(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookFilter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
index 3869451e1fd..175b0a45815 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
index b44301deb1c..be2b58fa4eb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
index 1bf7c09d2fe..583790030b1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/DataBodyRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class DataBodyRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public DataBodyRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
index 4cb56ec9089..8d41bc5663a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
index b8d4a98d7f5..910e05833d4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs
index 576c79ffdaa..a7e7629aff4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
index f14d1ddd2bf..c36ffee6c7f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
index e1756dedfa2..d118c741c64 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs
index 921bb73601d..e8f8293ee8c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
index 35938910b87..c02ef921375 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.DataBodyRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs
index a4d74ac118e..15bc367b9a6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/DataBodyRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
index 2839e4cfedf..a72b43941b1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
index 04276d754a9..b0fbb155765 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
index 7669951722b..4cf475ac5c6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
index bbb67e4f4f1..5574af350e9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
index c87665f8c20..2dbd88d259a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
index dd0099eb0f0..46fc9e298b0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/HeaderRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class HeaderRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public HeaderRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
index 56030ea4fbb..aae12038245 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
index 4cdf32f5a7e..866a43faff8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
index 93d4e8b8a52..04593687512 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
index 258f51631a2..9172ce1df35 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.HeaderRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
index 1e767127850..9cb86fdbad5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/HeaderRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index a143974dd73..112d6db7691 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index 329fbe1094d..8febf9a030c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index 7bbdab9151b..3e4ed33b76f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index b693f784eb2..d2882b66f3a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 00cc157a273..612c4f5481b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 19c16555619..6636d474298 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index fc738b7e1fd..ea7905b09d9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index b39b75a48c5..cdba73596e4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index 911f2e72660..292ab0a9660 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/RangeRequestBuilder.cs
index dda130a171e..652740933fc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index ddba671a682..54c0e64a3df 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddPostRequestBody.cs
index 8dc97a40ac7..302cd1cec75 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddPostRequestBody.cs
@@ -58,7 +58,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("index", Index);
             writer.WriteObjectValue<UntypedNode>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddRequestBuilder.cs
index fa43a85110e..f3348f4582f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Add/AddRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountGetResponse.cs
index 97e4b49faba..c246dcd3a24 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountGetResponse.cs
@@ -42,7 +42,7 @@ public CountGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Count.CountGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Count.CountGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountResponse.cs
index 405b9ee6f44..dc946153769 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Count/CountResponse.cs
@@ -20,7 +20,7 @@ public partial class CountResponse : global::Microsoft.Graph.Drives.Item.Items.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Count.CountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Count.CountResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
index 99e97e0c806..f52dc807947 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
index 582dd0ca448..d51a92dd081 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
index 63794bdeb95..4be8eaf382d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
index 943a678de40..09ff3e24ddd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs
index 2c3d18c672a..7553e4495f5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
index 0d43efb2221..5c5af04cb6f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
index 925bd398054..cfa60498bf1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs
index fea64157713..e7eb40361d8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
index 99be61a1a0b..de2165506e4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs
index 0ddace57753..6c4db374ecc 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/RangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class RangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -253,8 +253,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -265,8 +265,8 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -276,7 +276,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -286,7 +286,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -296,7 +296,7 @@ public RangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -325,7 +325,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.Item.RangeNamespace.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs
index 4e0c29cdc14..735b8aa0a82 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/RangeNamespace/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs
index 59c37a9cfa2..9018f3b2efa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/Item/WorkbookTableRowItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/RowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/RowsRequestBuilder.cs
index 73deaad334b..2783e24e938 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/RowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Rows/RowsRequestBuilder.cs
@@ -90,7 +90,7 @@ public RowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Rows.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public RowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PostAsync(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs
index 5867403ab9a..52cce8cfbf2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyPostRequestBody.cs
@@ -75,7 +75,7 @@ public ApplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Sort.Apply.ApplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Sort.Apply.ApplyPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookSortField>("fields", Fields);
             writer.WriteBoolValue("matchCase", MatchCase);
             writer.WriteStringValue("method", Method);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs
index 432c22fde03..5b8f02edd82 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/Apply/ApplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Sort.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.Sort.Apply.ApplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/SortRequestBuilder.cs
index 6d35d65f366..b3dfd77de84 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/Sort/SortRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
index 5fb6835e485..381c2c336f3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
index 60fa66bbebe..ad42a7724d6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
index 269c355ddb3..af3cdc3b028 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
index 6eb3c669af8..5b688e02f70 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs
index d88ba55adbb..cb9b22a27e7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
index 63099449d22..a445d0ca7bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
index afc93b7b196..b359035c580 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs
index 2066a2c19cb..8203366eed5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
index 929c61d1c18..f06ba555e3b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs
index 46614742965..510e830f30c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
index 652f3f39f6b..94c368bb3ec 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/TotalRowRange/TotalRowRangeRequestBuilder.cs
@@ -162,8 +162,8 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -173,7 +173,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -183,7 +183,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -193,7 +193,7 @@ public partial class TotalRowRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -254,8 +254,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -266,8 +266,8 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -277,7 +277,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -287,7 +287,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -297,7 +297,7 @@ public TotalRowRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
@@ -326,7 +326,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.Item.TotalRowRange.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/WorkbookTableItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/WorkbookTableItemRequestBuilder.cs
index 8f8d73bd364..ff4f718f070 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/WorkbookTableItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/Item/WorkbookTableItemRequestBuilder.cs
@@ -162,7 +162,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTable> PatchAsync(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -223,7 +223,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs
index 6043bc12edb..30833dd7d00 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Columns/ColumnsRequestBuilder.cs
@@ -74,7 +74,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WorkbookTableColumn> PostAsync(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs
index 20ab9839051..defb8fd0957 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Rows/RowsRequestBuilder.cs
@@ -74,7 +74,7 @@ public RowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.WorkbookTableRow> PostAsync(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTableRow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs
index ef4e4a6bbc5..ab5e8234276 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/ItemAtWithIndex/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookTableSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookTableSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/TablesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/TablesRequestBuilder.cs
index 252597cdfdb..7afc70971ee 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/TablesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/Tables/TablesRequestBuilder.cs
@@ -90,7 +90,7 @@ public TablesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         /// <param name="index">Usage: index={index}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.ItemAtWithIndex.ItemAtWithIndexRequestBuilder ItemAtWithIndex(int? index)
         {
-            _ = index ?? throw new ArgumentNullException(nameof(index));
+            if(ReferenceEquals(index, null)) throw new ArgumentNullException(nameof(index));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.Tables.ItemAtWithIndex.ItemAtWithIndexRequestBuilder(PathParameters, RequestAdapter, index);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public TablesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookTable> PostAsync(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookTable body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearPostRequestBody.cs
index 6cf32313fcb..ce91e0f91fd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearRequestBuilder.cs
index 254729a930e..32c7f1a0a85 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeletePostRequestBody.cs
index 10373fc89f7..66d48b5c8b1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeleteRequestBuilder.cs
index a90a4b9c081..ef5a51bb377 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Format/FormatRequestBuilder.cs
index e7c06390eb3..d775564b416 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertPostRequestBody.cs
index 4d59cb69f88..f6414ec0465 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertRequestBuilder.cs
index 06364be514d..b07f01c8626 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergePostRequestBody.cs
index 69fff3d43a6..f45ed22c639 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergeRequestBuilder.cs
index 1be5005bc0b..815fe07a7f9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Sort/SortRequestBuilder.cs
index 30968fed956..154e893f7c9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/UsedRangeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/UsedRangeRequestBuilder.cs
index be7c701a4e6..11af03872c7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/UsedRangeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRange/UsedRangeRequestBuilder.cs
@@ -155,8 +155,8 @@ public partial class UsedRangeRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -166,7 +166,7 @@ public partial class UsedRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -176,7 +176,7 @@ public partial class UsedRangeRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -186,7 +186,7 @@ public partial class UsedRangeRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -246,8 +246,8 @@ public UsedRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -258,8 +258,8 @@ public UsedRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -269,7 +269,7 @@ public UsedRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -279,7 +279,7 @@ public UsedRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -289,7 +289,7 @@ public UsedRangeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRange.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearPostRequestBody.cs
index db8d8e01d44..fab49e190b7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearPostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Clear.ClearPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Clear.ClearPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applyTo", ApplyTo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearRequestBuilder.cs
index 1a70db2e309..306efda0e02 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Clear/ClearRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Clear.ClearPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeletePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeletePostRequestBody.cs
index ea0425b75f2..f6b552c70d9 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeletePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeletePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeletePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Delete.DeletePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Delete.DeletePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeleteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeleteRequestBuilder.cs
index 06b5c556caf..d3a62054338 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeleteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Delete/DeleteRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Delete.DeletePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Format/FormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Format/FormatRequestBuilder.cs
index 4cbf7ba6915..58975728bf8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Format/FormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Format/FormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeFormat> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertPostRequestBody.cs
index 207ba12df6b..864e28dcda3 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertPostRequestBody.cs
@@ -52,7 +52,7 @@ public InsertPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Insert.InsertPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Insert.InsertPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("shift", Shift);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertRequestBuilder.cs
index e1beef47413..8c352b548b8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Insert/InsertRequestBuilder.cs
@@ -51,7 +51,7 @@ public InsertRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.WorkbookRange> PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Insert.InsertPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergePostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergePostRequestBody.cs
index c57c7971244..86f8cbbf517 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergePostRequestBody.cs
@@ -42,7 +42,7 @@ public MergePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Merge.MergePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Merge.MergePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("across", Across);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergeRequestBuilder.cs
index b085e2f6535..eb93f66d234 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Merge/MergeRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workb
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.Merge.MergePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Sort/SortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Sort/SortRequestBuilder.cs
index faa3f116b3f..0a1505ef41d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Sort/SortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/Sort/SortRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookRangeSort> PatchAsync(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookRangeSort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/UsedRangeWithValuesOnlyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/UsedRangeWithValuesOnlyRequestBuilder.cs
index 250cba8f977..ce90ac79a49 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/UsedRangeWithValuesOnlyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/UsedRangeWithValuesOnly/UsedRangeWithValuesOnlyRequestBuilder.cs
@@ -155,8 +155,8 @@ public partial class UsedRangeWithValuesOnlyRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -166,7 +166,7 @@ public partial class UsedRangeWithValuesOnlyRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder ColumnsAfterWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ColumnsAfterWithCount.ColumnsAfterWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -176,7 +176,7 @@ public partial class UsedRangeWithValuesOnlyRequestBuilder : BaseRequestBuilder
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder ColumnsBeforeWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ColumnsBeforeWithCount.ColumnsBeforeWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -186,7 +186,7 @@ public partial class UsedRangeWithValuesOnlyRequestBuilder : BaseRequestBuilder
         /// <param name="column">Usage: column={column}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ColumnWithColumn.ColumnWithColumnRequestBuilder ColumnWithColumn(int? column)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ColumnWithColumn.ColumnWithColumnRequestBuilder(PathParameters, RequestAdapter, column);
         }
         /// <summary>
@@ -248,8 +248,8 @@ public UsedRangeWithValuesOnlyRequestBuilder(string rawUrl, IRequestAdapter requ
         /// <param name="rowOffset">Usage: rowOffset={rowOffset}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder OffsetRangeWithRowOffsetWithColumnOffset(int? columnOffset, int? rowOffset)
         {
-            _ = columnOffset ?? throw new ArgumentNullException(nameof(columnOffset));
-            _ = rowOffset ?? throw new ArgumentNullException(nameof(rowOffset));
+            if(ReferenceEquals(columnOffset, null)) throw new ArgumentNullException(nameof(columnOffset));
+            if(ReferenceEquals(rowOffset, null)) throw new ArgumentNullException(nameof(rowOffset));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.OffsetRangeWithRowOffsetWithColumnOffset.OffsetRangeWithRowOffsetWithColumnOffsetRequestBuilder(PathParameters, RequestAdapter, columnOffset, rowOffset);
         }
         /// <summary>
@@ -260,8 +260,8 @@ public UsedRangeWithValuesOnlyRequestBuilder(string rawUrl, IRequestAdapter requ
         /// <param name="deltaRows">Usage: deltaRows={deltaRows}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder ResizedRangeWithDeltaRowsWithDeltaColumns(int? deltaColumns, int? deltaRows)
         {
-            _ = deltaColumns ?? throw new ArgumentNullException(nameof(deltaColumns));
-            _ = deltaRows ?? throw new ArgumentNullException(nameof(deltaRows));
+            if(ReferenceEquals(deltaColumns, null)) throw new ArgumentNullException(nameof(deltaColumns));
+            if(ReferenceEquals(deltaRows, null)) throw new ArgumentNullException(nameof(deltaRows));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.ResizedRangeWithDeltaRowsWithDeltaColumns.ResizedRangeWithDeltaRowsWithDeltaColumnsRequestBuilder(PathParameters, RequestAdapter, deltaColumns, deltaRows);
         }
         /// <summary>
@@ -271,7 +271,7 @@ public UsedRangeWithValuesOnlyRequestBuilder(string rawUrl, IRequestAdapter requ
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.RowsAboveWithCount.RowsAboveWithCountRequestBuilder RowsAboveWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.RowsAboveWithCount.RowsAboveWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -281,7 +281,7 @@ public UsedRangeWithValuesOnlyRequestBuilder(string rawUrl, IRequestAdapter requ
         /// <param name="count">Usage: count={count}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.RowsBelowWithCount.RowsBelowWithCountRequestBuilder RowsBelowWithCount(int? count)
         {
-            _ = count ?? throw new ArgumentNullException(nameof(count));
+            if(ReferenceEquals(count, null)) throw new ArgumentNullException(nameof(count));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.RowsBelowWithCount.RowsBelowWithCountRequestBuilder(PathParameters, RequestAdapter, count);
         }
         /// <summary>
@@ -291,7 +291,7 @@ public UsedRangeWithValuesOnlyRequestBuilder(string rawUrl, IRequestAdapter requ
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.RowWithRow.RowWithRowRequestBuilder RowWithRow(int? row)
         {
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.RowWithRow.RowWithRowRequestBuilder(PathParameters, RequestAdapter, row);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/WorkbookWorksheetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/WorkbookWorksheetItemRequestBuilder.cs
index 8512188a0b0..ae5d2ccf39e 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/WorkbookWorksheetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/Item/WorkbookWorksheetItemRequestBuilder.cs
@@ -71,8 +71,8 @@ public partial class WorkbookWorksheetItemRequestBuilder : BaseRequestBuilder
         /// <param name="row">Usage: row={row}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder CellWithRowWithColumn(int? column, int? row)
         {
-            _ = column ?? throw new ArgumentNullException(nameof(column));
-            _ = row ?? throw new ArgumentNullException(nameof(row));
+            if(ReferenceEquals(column, null)) throw new ArgumentNullException(nameof(column));
+            if(ReferenceEquals(row, null)) throw new ArgumentNullException(nameof(row));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.CellWithRowWithColumn.CellWithRowWithColumnRequestBuilder(PathParameters, RequestAdapter, column, row);
         }
         /// <summary>
@@ -153,7 +153,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkbookWorksheet> PatchAsync(global::Microsoft.Graph.Models.WorkbookWorksheet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -224,7 +224,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkbookWorksheet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -238,7 +238,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         /// <param name="valuesOnly">Usage: valuesOnly={valuesOnly}</param>
         public global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder UsedRangeWithValuesOnly(bool? valuesOnly)
         {
-            _ = valuesOnly ?? throw new ArgumentNullException(nameof(valuesOnly));
+            if(ReferenceEquals(valuesOnly, null)) throw new ArgumentNullException(nameof(valuesOnly));
             return new global::Microsoft.Graph.Drives.Item.Items.Item.Workbook.Worksheets.Item.UsedRangeWithValuesOnly.UsedRangeWithValuesOnlyRequestBuilder(PathParameters, RequestAdapter, valuesOnly);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/WorksheetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/WorksheetsRequestBuilder.cs
index 8a9f00125b7..733493ee4d7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/WorksheetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/Item/Workbook/Worksheets/WorksheetsRequestBuilder.cs
@@ -99,7 +99,7 @@ public WorksheetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WorkbookWorksheet> PostAsync(global::Microsoft.Graph.Models.WorkbookWorksheet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkbookWorksheet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Items/ItemsRequestBuilder.cs
index 0c380c08089..452845c8ac4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Items/ItemsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.DriveItem> PostAsync(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 4e617406c51..0c8582ad85a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/ColumnsRequestBuilder.cs
index b7acea97007..6dbd876a865 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index 169264e7263..cfce6999849 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
index 8265a0d9006..f8ca35d8ba8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
index badb6d5eba1..4e85236b3fb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
index 1dfb0d9f411..53ea52ee2cf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentTypeId", ContentTypeId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
index b2edfc24b99..ece93d3188f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/ContentTypesRequestBuilder.cs
index d003241b8fd..1dded795d14 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/ContentTypesRequestBuilder.cs
@@ -111,7 +111,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
index 36d3930c955..49159770d26 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetCompatibleHubContentTypesGetResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
index 7276c7f8160..baa0840d3d5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetCompatibleHubContentTypesResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
index a15cd0f6303..01de65b2c18 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
@@ -58,7 +58,7 @@ public AssociateWithHubSitesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("hubSiteUrls", HubSiteUrls);
             writer.WriteBoolValue("propagateToExistingLists", PropagateToExistingLists);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
index 64185f43830..69b360c7c25 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.List.ContentType
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
index 9d428c8c1b0..e36a4e4aca5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnLinksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PostAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
index dff7443f7e4..b4665120f53 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PatchAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
index 50099ce1831..a8216676716 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index 20a3f15d756..4a56ca21f33 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
index 5125cfe938b..78f3126b638 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
@@ -156,7 +156,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentType> PatchAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -217,7 +217,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
index e76930f6bc2..e1474b347e6 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
@@ -69,7 +69,7 @@ public CopyToDefaultContentLocationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("destinationFileName", DestinationFileName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemReference>("sourceFile", SourceFile);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
index dd6703e2931..251b4c0cdf1 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Drives.Item.List.ContentType
         public async Task PostAsync(global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
index 8959d51abf3..4b08da4a583 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
@@ -42,7 +42,7 @@ public IsPublishedGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.IsPublished.IsPublishedGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.IsPublished.IsPublishedGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
index 2d4e4beb216..b6a46421a63 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
@@ -20,7 +20,7 @@ public partial class IsPublishedResponse : global::Microsoft.Graph.Drives.Item.L
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.IsPublished.IsPublishedResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.ContentTypes.Item.IsPublished.IsPublishedResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 83ad838aa74..9de73879dc8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaGetResponse.cs
index d4ab0e1b925..03cc38409b4 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaResponse.cs
index c4e626e582e..593283c1df8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Drives.Item.List.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
index c63d374cb61..81e26ba06aa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaWithTokenGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.DeltaWithToken.DeltaWithTokenGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.DeltaWithToken.DeltaWithTokenGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs
index ead811ede52..5c7ba2d1afd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaWithTokenResponse : global::Microsoft.Graph.Drives.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.DeltaWithToken.DeltaWithTokenResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.DeltaWithToken.DeltaWithTokenResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
index 700686342f1..354892672b2 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
@@ -135,7 +135,7 @@ public CreateLinkPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Drives.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("password", Password);
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
index 8d8a430c021..bf66a690d14 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
@@ -51,7 +51,7 @@ public CreateLinkRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Drives.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drive
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Drives.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 217f3edb5e1..7695fd088fb 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
index f99f80b9025..7401f30d2c8 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DocumentSetVersionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PostAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
index 975bc22f458..f0d2305cb37 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PatchAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
index cd6a7d71b42..7cc7a6c92a7 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
index 349c7ccbdb8..e1e3f642457 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs
index 42ce1d1208c..6e30492ae3a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index c8e6c6709fc..8fef7196a55 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index 6c6ea2d8d27..3b5a920de11 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index 371c2efb4ae..4434cb336c5 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index 61b6dde9708..f16ad509876 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index e0156a7f60f..c11585742bf 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/ListItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/ListItemItemRequestBuilder.cs
index bcb94eeffc6..a466a0ae332 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/ListItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/ListItemItemRequestBuilder.cs
@@ -165,7 +165,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItem> PatchAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -226,7 +226,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
index d5afec249f0..e40a079887d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
index 552fcf4ec9b..b033fc4ad00 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PatchAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs
index 16ca5012810..a2c7e0a8d0f 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PostAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/ItemsRequestBuilder.cs
index 2ab8ceebc61..2706fec07b0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Items/ItemsRequestBuilder.cs
@@ -110,7 +110,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ListItem> PostAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index af1fcaa13af..5e95e6457fa 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/ListRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/ListRequestBuilder.cs
index c7fb7e329de..074dc138c89 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/ListRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/ListRequestBuilder.cs
@@ -144,7 +144,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.List> PatchAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -205,7 +205,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
index eda040683d0..25114eec099 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/OperationsRequestBuilder.cs
index 96d81611b76..4307c2ae52d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
index 822ecf90c31..4cfc257cc8a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Subscription> PatchAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs
index 0db6dd6ba57..d2a1cf351cd 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubscriptionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Subscription> PostAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentGetResponse.cs
index 40b0ef2a0ca..c82842d4842 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentGetResponse.cs
@@ -36,7 +36,7 @@ public partial class RecentGetResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Recent.RecentGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Recent.RecentGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentResponse.cs
index 109b3faed49..5daefeff8ed 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Recent/RecentResponse.cs
@@ -20,7 +20,7 @@ public partial class RecentResponse : global::Microsoft.Graph.Drives.Item.Recent
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.Recent.RecentResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.Recent.RecentResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Root/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Root/Content/ContentRequestBuilder.cs
index c6a3e3caa9c..55e37c7fdf0 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Root/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Root/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQGetResponse.cs
index 3e96bd7a0df..b47b77afa9c 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SearchWithQGetResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.SearchWithQ.SearchWithQGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.SearchWithQ.SearchWithQGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQResponse.cs
index 88bc77eb769..bf37c07e87b 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/SearchWithQ/SearchWithQResponse.cs
@@ -20,7 +20,7 @@ public partial class SearchWithQResponse : global::Microsoft.Graph.Drives.Item.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.SearchWithQ.SearchWithQResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.SearchWithQ.SearchWithQResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeGetResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeGetResponse.cs
index 152d7382e21..b3ac5db909a 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SharedWithMeGetResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.SharedWithMe.SharedWithMeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.SharedWithMe.SharedWithMeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeResponse.cs b/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeResponse.cs
index c0fce06c1b8..b7ae4284f59 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/SharedWithMe/SharedWithMeResponse.cs
@@ -20,7 +20,7 @@ public partial class SharedWithMeResponse : global::Microsoft.Graph.Drives.Item.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Drives.Item.SharedWithMe.SharedWithMeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Drives.Item.SharedWithMe.SharedWithMeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Drives/Item/Special/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Drives/Item/Special/Item/Content/ContentRequestBuilder.cs
index df4393fecfa..483ff7c434d 100644
--- a/src/Microsoft.Graph/Generated/Drives/Item/Special/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Drives/Item/Special/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/ClassesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/ClassesRequestBuilder.cs
index 774adb15605..789c97b418d 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/ClassesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/ClassesRequestBuilder.cs
@@ -101,7 +101,7 @@ public ClassesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.EducationClass> PostAsync(global::Microsoft.Graph.Models.EducationClass body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationClass body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaGetResponse.cs
index ed95503105d..08da51842cf 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationClass>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaResponse.cs
index f99328ad89f..06a4a4b4c68 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Classes.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/AssignmentCategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/AssignmentCategoriesRequestBuilder.cs
index f408dcc77a9..d8940a94304 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/AssignmentCategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/AssignmentCategoriesRequestBuilder.cs
@@ -101,7 +101,7 @@ public AssignmentCategoriesRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.EducationCategory> PostAsync(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaGetResponse.cs
index 462de1a178b..e85fb9d98a5 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.AssignmentCategories.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.AssignmentCategories.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaResponse.cs
index 67a147c00d4..7ed3973756c 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Classes.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.AssignmentCategories.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.AssignmentCategories.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Item/EducationCategoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Item/EducationCategoryItemRequestBuilder.cs
index 2ffa5af6283..3428887a5fe 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Item/EducationCategoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentCategories/Item/EducationCategoryItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationCategory> PatchAsync(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentDefaults/AssignmentDefaultsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentDefaults/AssignmentDefaultsRequestBuilder.cs
index f0845f3c62c..50c26f57ba0 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentDefaults/AssignmentDefaultsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentDefaults/AssignmentDefaultsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentDefaults> PatchAsync(global::Microsoft.Graph.Models.EducationAssignmentDefaults body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentDefaults body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/AssignmentSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/AssignmentSettingsRequestBuilder.cs
index 25c95bb4506..b9d86d74d9f 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/AssignmentSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/AssignmentSettingsRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentSettings> PatchAsync(global::Microsoft.Graph.Models.EducationAssignmentSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/GradingCategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/GradingCategoriesRequestBuilder.cs
index adc588eaccb..06225b05f2a 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/GradingCategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/GradingCategoriesRequestBuilder.cs
@@ -93,7 +93,7 @@ public GradingCategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.EducationGradingCategory> PostAsync(global::Microsoft.Graph.Models.EducationGradingCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationGradingCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/Item/EducationGradingCategoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/Item/EducationGradingCategoryItemRequestBuilder.cs
index ce5a3885f35..de206f2eaf0 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/Item/EducationGradingCategoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/AssignmentSettings/GradingCategories/Item/EducationGradingCategoryItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationGradingCategory> PatchAsync(global::Microsoft.Graph.Models.EducationGradingCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationGradingCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/AssignmentsRequestBuilder.cs
index 412490e912f..ba9861a0c25 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -101,7 +101,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EducationAssignment> PostAsync(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaGetResponse.cs
index e0054f0e964..f9d62db4a35 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.Assignments.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.Assignments.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaResponse.cs
index b0426bdbe07..108c651332f 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Classes.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.Assignments.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.Assignments.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs
index c6857289d9d..3aa67060204 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs
@@ -107,7 +107,7 @@ public CategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationCategory> PostAsync(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
index 25d2f2bb5f2..0fe012fdfac 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.Assignments.Item.Categories.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.Assignments.Item.Categories.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs
index eb1c15ec2ed..19d0ca59616 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Classes.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.Assignments.Item.Categories.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.Assignments.Item.Categories.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
index f0241f7a565..bfb2084a7a8 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/education/classes/{educationClass%2Did}/assignments/{educationAssignment%2Did}/categories/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
index f60dafbac46..aea57087abb 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
@@ -159,7 +159,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignment> PatchAsync(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -220,7 +220,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
index 195041b620f..5791386c572 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentResource> PatchAsync(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs
index af39af74fde..867ccd3f668 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentResource> PostAsync(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
index 45c4178551b..7e28cb096a4 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs
index daa5632b5e4..225c0415d37 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationRubric> PatchAsync(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
index 67414ec766d..557081df9dd 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
@@ -151,7 +151,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmission> PatchAsync(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -212,7 +212,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
index 4e8fab6498a..acecf2758d6 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationOutcome> PatchAsync(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
index a6cbdca11b6..6695c973a43 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
@@ -95,7 +95,7 @@ public OutcomesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.EducationOutcome> PostAsync(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
index 7cf6cd57ddf..2afd18943f9 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PatchAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
index 28123e8e477..35870953d58 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PostAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
index 223b86985f5..dc2c8dfcb2f 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PatchAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
index 46dfc79a191..6af58eb7557 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
@@ -94,7 +94,7 @@ public SubmittedResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PostAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
index fbf2edcec74..aa22e5207cf 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SubmissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EducationSubmission> PostAsync(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/EducationClassItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/EducationClassItemRequestBuilder.cs
index ee878325089..cc99ef14fe7 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/EducationClassItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/EducationClassItemRequestBuilder.cs
@@ -159,7 +159,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationClass> PatchAsync(global::Microsoft.Graph.Models.EducationClass body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -220,7 +220,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationClass body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsGetResponse.cs
index da764013914..1165f8ff1d3 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetRecentlyModifiedSubmissionsGetResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.GetRecentlyModifiedSubmissions.GetRecentlyModifiedSubmissionsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.GetRecentlyModifiedSubmissions.GetRecentlyModifiedSubmissionsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationSubmission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsResponse.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsResponse.cs
index 56614c59b25..8d4d003dc94 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/GetRecentlyModifiedSubmissions/GetRecentlyModifiedSubmissionsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetRecentlyModifiedSubmissionsResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Classes.Item.GetRecentlyModifiedSubmissions.GetRecentlyModifiedSubmissionsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Classes.Item.GetRecentlyModifiedSubmissions.GetRecentlyModifiedSubmissionsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Members/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Members/Ref/RefRequestBuilder.cs
index 3314b481b10..6b175714ed0 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Members/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Members/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/education/classes/{educationClass%2Did}/members/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/EducationModuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/EducationModuleItemRequestBuilder.cs
index 8a1ef979862..96f3f4d0f81 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/EducationModuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/EducationModuleItemRequestBuilder.cs
@@ -129,7 +129,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationModule> PatchAsync(global::Microsoft.Graph.Models.EducationModule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -190,7 +190,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationModule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/Item/EducationModuleResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/Item/EducationModuleResourceItemRequestBuilder.cs
index 7bcac338330..04eab5290ad 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/Item/EducationModuleResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/Item/EducationModuleResourceItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationModuleResource> PatchAsync(global::Microsoft.Graph.Models.EducationModuleResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationModuleResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/ResourcesRequestBuilder.cs
index 640127e3866..8fae2b09018 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/Item/Resources/ResourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationModuleResource> PostAsync(global::Microsoft.Graph.Models.EducationModuleResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationModuleResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/ModulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/ModulesRequestBuilder.cs
index ca83d834e03..aab6ebe13a2 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/ModulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Modules/ModulesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ModulesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.EducationModule> PostAsync(global::Microsoft.Graph.Models.EducationModule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationModule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Classes/Item/Teachers/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Classes/Item/Teachers/Ref/RefRequestBuilder.cs
index dafa1c8fd0c..a45a9cb0f20 100644
--- a/src/Microsoft.Graph/Generated/Education/Classes/Item/Teachers/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Classes/Item/Teachers/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/education/classes/{educationClass%2Did}/teachers/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/EducationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/EducationRequestBuilder.cs
index fd6c749279d..ddb471e6338 100644
--- a/src/Microsoft.Graph/Generated/Education/EducationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/EducationRequestBuilder.cs
@@ -104,7 +104,7 @@ public EducationRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationRoot> PatchAsync(global::Microsoft.Graph.Models.EducationRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/AssignmentsRequestBuilder.cs
index f4c5e6aee13..cbc007a574d 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/AssignmentsRequestBuilder.cs
@@ -100,7 +100,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EducationAssignment> PostAsync(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaGetResponse.cs
index b7337a46ef6..ddc0b0b3a9d 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Me.Assignments.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Me.Assignments.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaResponse.cs
index cb9d24ed774..614b631fa1d 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Me.Assign
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Me.Assignments.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Me.Assignments.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/CategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/CategoriesRequestBuilder.cs
index f89fafeb776..f90b42f1104 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/CategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/CategoriesRequestBuilder.cs
@@ -105,7 +105,7 @@ public CategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationCategory> PostAsync(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
index bdadc67d13c..313a63169ab 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Me.Assignments.Item.Categories.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Me.Assignments.Item.Categories.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaResponse.cs
index 9a693e6590c..fef49bc8a6d 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Me.Assign
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Me.Assignments.Item.Categories.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Me.Assignments.Item.Categories.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
index 6fbca493c15..3f033ab1605 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/education/me/assignments/{educationAssignment%2Did}/categories/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/EducationAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
index 69b99a7e1de..eb4ed9b0f87 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
@@ -156,7 +156,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignment> PatchAsync(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -217,7 +217,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
index 4c88c279b8c..ceb19acc8f0 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentResource> PatchAsync(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/ResourcesRequestBuilder.cs
index 9229c765b20..80e26f7269d 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentResource> PostAsync(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
index 9a9d45e3eaf..a765e9611eb 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/RubricRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/RubricRequestBuilder.cs
index a8c56895f86..001e058512a 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/RubricRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Rubric/RubricRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationRubric> PatchAsync(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
index a7b0c8ceb56..fb6aff21ee0 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
@@ -150,7 +150,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmission> PatchAsync(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -211,7 +211,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
index e4897faa67a..1179d5cdf4d 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationOutcome> PatchAsync(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
index 956039ea182..14d4b348b82 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
@@ -93,7 +93,7 @@ public OutcomesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.EducationOutcome> PostAsync(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
index 3208b45b116..c28ffb2270a 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PatchAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
index 07704a44805..a94590163c0 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PostAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
index fad0399bbdb..c3272d5d59d 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PatchAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
index cb73b13a27d..da69de7f767 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubmittedResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PostAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
index d78de72ddc8..eb7128d344a 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubmissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EducationSubmission> PostAsync(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/MeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/MeRequestBuilder.cs
index 5a88de9f7df..fe3bf65baf9 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/MeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/MeRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationUser> PatchAsync(global::Microsoft.Graph.Models.EducationUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Rubrics/Item/EducationRubricItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Rubrics/Item/EducationRubricItemRequestBuilder.cs
index 7d9ab991a2f..4ea90ca98b3 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Rubrics/Item/EducationRubricItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Rubrics/Item/EducationRubricItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationRubric> PatchAsync(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/Rubrics/RubricsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/Rubrics/RubricsRequestBuilder.cs
index 0ce1724f81d..d8c51646d8e 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/Rubrics/RubricsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/Rubrics/RubricsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RubricsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.EducationRubric> PostAsync(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Me/User/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Me/User/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 5af7308a254..92757f945ae 100644
--- a/src/Microsoft.Graph/Generated/Education/Me/User/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Me/User/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/Item/ReadingAssignmentSubmissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/Item/ReadingAssignmentSubmissionItemRequestBuilder.cs
index e48f04d8726..b15a149e8a7 100644
--- a/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/Item/ReadingAssignmentSubmissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/Item/ReadingAssignmentSubmissionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ReadingAssignmentSubmission> PatchAsync(global::Microsoft.Graph.Models.ReadingAssignmentSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ReadingAssignmentSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/ReadingAssignmentSubmissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/ReadingAssignmentSubmissionsRequestBuilder.cs
index 365e5a09463..3fd885ad8f0 100644
--- a/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/ReadingAssignmentSubmissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Reports/ReadingAssignmentSubmissions/ReadingAssignmentSubmissionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ReadingAssignmentSubmissionsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ReadingAssignmentSubmission> PostAsync(global::Microsoft.Graph.Models.ReadingAssignmentSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReadingAssignmentSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/Item/ReflectCheckInResponseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/Item/ReflectCheckInResponseItemRequestBuilder.cs
index 8c69276874a..8b5155725c7 100644
--- a/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/Item/ReflectCheckInResponseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/Item/ReflectCheckInResponseItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ReflectCheckInResponse> PatchAsync(global::Microsoft.Graph.Models.ReflectCheckInResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ReflectCheckInResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/ReflectCheckInResponsesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/ReflectCheckInResponsesRequestBuilder.cs
index 33ebafcda68..63da3b3443e 100644
--- a/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/ReflectCheckInResponsesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Reports/ReflectCheckInResponses/ReflectCheckInResponsesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ReflectCheckInResponsesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.ReflectCheckInResponse> PostAsync(global::Microsoft.Graph.Models.ReflectCheckInResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReflectCheckInResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Reports/ReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Reports/ReportsRequestBuilder.cs
index ca57618c838..5d2f2b1b138 100644
--- a/src/Microsoft.Graph/Generated/Education/Reports/ReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Reports/ReportsRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ReportsRoot> PatchAsync(global::Microsoft.Graph.Models.ReportsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ReportsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaGetResponse.cs
index 6aa005a8e44..d8914aff511 100644
--- a/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Schools.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Schools.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationSchool>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaResponse.cs
index 4f5baad0d95..9894b65e621 100644
--- a/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Schools/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Schools.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Schools.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Schools.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Schools/Item/AdministrativeUnit/AdministrativeUnitRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Schools/Item/AdministrativeUnit/AdministrativeUnitRequestBuilder.cs
index 652825b8b9b..f667150c850 100644
--- a/src/Microsoft.Graph/Generated/Education/Schools/Item/AdministrativeUnit/AdministrativeUnitRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Schools/Item/AdministrativeUnit/AdministrativeUnitRequestBuilder.cs
@@ -74,7 +74,7 @@ public AdministrativeUnitRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AdministrativeUnit> PatchAsync(global::Microsoft.Graph.Models.AdministrativeUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AdministrativeUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Schools/Item/Classes/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Schools/Item/Classes/Ref/RefRequestBuilder.cs
index c6b351ccb6f..3d578ec9cdb 100644
--- a/src/Microsoft.Graph/Generated/Education/Schools/Item/Classes/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Schools/Item/Classes/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/education/schools/{educationSchool%2Did}/classes/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Schools/Item/EducationSchoolItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Schools/Item/EducationSchoolItemRequestBuilder.cs
index ddaab8736da..cfe7ca9642e 100644
--- a/src/Microsoft.Graph/Generated/Education/Schools/Item/EducationSchoolItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Schools/Item/EducationSchoolItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSchool> PatchAsync(global::Microsoft.Graph.Models.EducationSchool body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSchool body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Schools/Item/Users/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Schools/Item/Users/Ref/RefRequestBuilder.cs
index a84e37856f2..ad959846d12 100644
--- a/src/Microsoft.Graph/Generated/Education/Schools/Item/Users/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Schools/Item/Users/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/education/schools/{educationSchool%2Did}/users/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Schools/SchoolsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Schools/SchoolsRequestBuilder.cs
index c8e0775f267..93441027b53 100644
--- a/src/Microsoft.Graph/Generated/Education/Schools/SchoolsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Schools/SchoolsRequestBuilder.cs
@@ -101,7 +101,7 @@ public SchoolsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.EducationSchool> PostAsync(global::Microsoft.Graph.Models.EducationSchool body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSchool body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaGetResponse.cs
index fc71563eed4..8d4e8386498 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Users.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Users.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationUser>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaResponse.cs
index 4ea6f8d89db..5c76fa51058 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Users.Del
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Users.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Users.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/AssignmentsRequestBuilder.cs
index 0c0865cad8a..073e2365bc2 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/AssignmentsRequestBuilder.cs
@@ -100,7 +100,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EducationAssignment> PostAsync(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaGetResponse.cs
index 970c9321f9c..0501fea641f 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Users.Item.Assignments.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Users.Item.Assignments.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaResponse.cs
index 51ec748294f..3a43b53898c 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Users.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Users.Item.Assignments.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Users.Item.Assignments.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs
index face29e3d9b..7847e196cfa 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/CategoriesRequestBuilder.cs
@@ -105,7 +105,7 @@ public CategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationCategory> PostAsync(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
index 67077c60375..ebe60751d54 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Users.Item.Assignments.Item.Categories.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Users.Item.Assignments.Item.Categories.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs
index 8938eef9432..c9f533752b1 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Education.Users.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Education.Users.Item.Assignments.Item.Categories.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Education.Users.Item.Assignments.Item.Categories.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
index 71d10bf9b59..31366b2d56d 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Categories/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/education/users/{educationUser%2Did}/assignments/{educationAssignment%2Did}/categories/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
index 74307011ec1..f96bee2b432 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/EducationAssignmentItemRequestBuilder.cs
@@ -156,7 +156,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignment> PatchAsync(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -217,7 +217,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
index eba8e901f05..f6a1cca7641 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/Item/EducationAssignmentResourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentResource> PatchAsync(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs
index 277b01436f4..209a5d3d5d3 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationAssignmentResource> PostAsync(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationAssignmentResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
index 6799ead1177..e48113ceaa7 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs
index c2532d6876e..4fcd6543f95 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Rubric/RubricRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationRubric> PatchAsync(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
index 7a16deea618..a68a8c101f3 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/EducationSubmissionItemRequestBuilder.cs
@@ -150,7 +150,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmission> PatchAsync(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -211,7 +211,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
index 1c3564dfc86..99c4ce81ad9 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/Item/EducationOutcomeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationOutcome> PatchAsync(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
index e0fbfdfc165..b3609fa1024 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Outcomes/OutcomesRequestBuilder.cs
@@ -93,7 +93,7 @@ public OutcomesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.EducationOutcome> PostAsync(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationOutcome body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
index cd45c95262d..a3a37cd4cea 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/Item/EducationSubmissionResourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PatchAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
index 3a4ff999e0f..0a5704592b0 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PostAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
index 01a139533f7..0ad10b2b6e8 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/Item/EducationSubmissionResourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PatchAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
index 1579b9a44c0..0bbb2b93f74 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/Item/SubmittedResources/SubmittedResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubmittedResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.EducationSubmissionResource> PostAsync(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmissionResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
index 1e921da3c54..42c9a1ffbcc 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Assignments/Item/Submissions/SubmissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubmissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EducationSubmission> PostAsync(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationSubmission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/EducationUserItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/EducationUserItemRequestBuilder.cs
index 63a36271162..63bf42d05b2 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/EducationUserItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/EducationUserItemRequestBuilder.cs
@@ -135,7 +135,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationUser> PatchAsync(global::Microsoft.Graph.Models.EducationUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -196,7 +196,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/Item/EducationRubricItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/Item/EducationRubricItemRequestBuilder.cs
index 9ff8b13cffa..81981f649b8 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/Item/EducationRubricItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/Item/EducationRubricItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EducationRubric> PatchAsync(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/RubricsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/RubricsRequestBuilder.cs
index 92cdca99153..47272aa653a 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/RubricsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/Rubrics/RubricsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RubricsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.EducationRubric> PostAsync(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationRubric body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/Item/User/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/Item/User/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 6a9cda44d89..9bb57222042 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/Item/User/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/Item/User/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Education/Users/UsersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Education/Users/UsersRequestBuilder.cs
index b1d057a17ff..83524055c86 100644
--- a/src/Microsoft.Graph/Generated/Education/Users/UsersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Education/Users/UsersRequestBuilder.cs
@@ -101,7 +101,7 @@ public UsersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.EducationUser> PostAsync(global::Microsoft.Graph.Models.EducationUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EducationUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/CommunitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/CommunitiesRequestBuilder.cs
index 1539a55d141..7cb1702c9cc 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/CommunitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/CommunitiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public CommunitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Community> PostAsync(global::Microsoft.Graph.Models.Community body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Community body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/CommunityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/CommunityItemRequestBuilder.cs
index 82c79890a40..77fc3da6e2c 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/CommunityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/CommunityItemRequestBuilder.cs
@@ -122,7 +122,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Community> PatchAsync(global::Microsoft.Graph.Models.Community body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -183,7 +183,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Community body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/Owners/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/Owners/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 461d3f5c048..1a2f538277f 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/Owners/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/Communities/Item/Owners/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/EmployeeExperienceRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
index b32e179b720..923c8f669a6 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
@@ -109,7 +109,7 @@ public EmployeeExperienceRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.EmployeeExperience> PatchAsync(global::Microsoft.Graph.Models.EmployeeExperience body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -151,7 +151,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EmployeeExperience body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/EngagementAsyncOperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/EngagementAsyncOperationsRequestBuilder.cs
index 8dcfd277346..3e6b753c68f 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/EngagementAsyncOperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/EngagementAsyncOperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public EngagementAsyncOperationsRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.EngagementAsyncOperation> PostAsync(global::Microsoft.Graph.Models.EngagementAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EngagementAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/Item/EngagementAsyncOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/Item/EngagementAsyncOperationItemRequestBuilder.cs
index d3af7262c26..c621dfa6ce0 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/Item/EngagementAsyncOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/EngagementAsyncOperations/Item/EngagementAsyncOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EngagementAsyncOperation> PatchAsync(global::Microsoft.Graph.Models.EngagementAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EngagementAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs
index 37a503d205b..d063f097326 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LearningCourseActivity> PatchAsync(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs
index ccde443b709..6e4f03de045 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public LearningCourseActivitiesRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.LearningCourseActivity> PostAsync(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs
index 64144c0b191..ebbca794720 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LearningCourseActivity> PatchAsync(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/Item/LearningContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/Item/LearningContentItemRequestBuilder.cs
index 6dd0a97b905..07c4c17a022 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/Item/LearningContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/Item/LearningContentItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LearningContent> PatchAsync(global::Microsoft.Graph.Models.LearningContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LearningContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/LearningContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/LearningContentsRequestBuilder.cs
index 122cf559231..91b3b81a272 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/LearningContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContents/LearningContentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public LearningContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.LearningContent> PostAsync(global::Microsoft.Graph.Models.LearningContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LearningContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContentsWithExternalId/LearningContentsWithExternalIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContentsWithExternalId/LearningContentsWithExternalIdRequestBuilder.cs
index 90fe67b188f..7f33e5ecdf0 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContentsWithExternalId/LearningContentsWithExternalIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningContentsWithExternalId/LearningContentsWithExternalIdRequestBuilder.cs
@@ -100,7 +100,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LearningContent> PatchAsync(global::Microsoft.Graph.Models.LearningContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LearningContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs
index cca75235b7a..6f9b75ba1ab 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/Item/LearningCourseActivityItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LearningCourseActivity> PatchAsync(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs
index 6355e3d4295..33912e0277f 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivities/LearningCourseActivitiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public LearningCourseActivitiesRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.LearningCourseActivity> PostAsync(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs
index 2bb98164331..a6c888d15c5 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningCourseActivitiesWithExternalcourseActivityId/LearningCourseActivitiesWithExternalcourseActivityIdRequestBuilder.cs
@@ -100,7 +100,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LearningCourseActivity> PatchAsync(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LearningCourseActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningProviderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningProviderItemRequestBuilder.cs
index 36d0e5b457f..278dc2221c3 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningProviderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/Item/LearningProviderItemRequestBuilder.cs
@@ -133,7 +133,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LearningProvider> PatchAsync(global::Microsoft.Graph.Models.LearningProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -194,7 +194,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LearningProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/LearningProvidersRequestBuilder.cs b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/LearningProvidersRequestBuilder.cs
index 02d11466b33..c0a3bce1d63 100644
--- a/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/LearningProvidersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/EmployeeExperience/LearningProviders/LearningProvidersRequestBuilder.cs
@@ -95,7 +95,7 @@ public LearningProvidersRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.LearningProvider> PostAsync(global::Microsoft.Graph.Models.LearningProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LearningProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/ConnectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/ConnectionsRequestBuilder.cs
index afa156bcc72..d1d4878fcac 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/ConnectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/ConnectionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ConnectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/ExternalConnectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/ExternalConnectionItemRequestBuilder.cs
index 3c7b23b9a57..9d30e6a992c 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/ExternalConnectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/ExternalConnectionItemRequestBuilder.cs
@@ -123,7 +123,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -184,7 +184,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/GroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/GroupsRequestBuilder.cs
index 7a2244df47a..73c20bb9880 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/GroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/GroupsRequestBuilder.cs
@@ -94,7 +94,7 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs
index 45edb8b7e54..0b4d0e890aa 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/ExternalGroupItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs
index 5f5238835fa..c8b9b7273fc 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/Item/IdentityItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.Identity> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs
index 1b71f0989ad..b0373ef882e 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Groups/Item/Members/MembersRequestBuilder.cs
@@ -94,7 +94,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.Identity> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.Identity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs
index 94da9ebbe41..fb59f069f24 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/ActivitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs
index d73ae15f87d..26edc7dc69d 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/Activities/Item/ExternalActivityItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs
index 0d65f45b3fe..f933ae4f54c 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/ExternalItemItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem> PutAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs
index 79eecef2b16..24aa0dd7652 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddActivitiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity>("activities", Activities);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs
index be5d9717d6b..459dcf16ae0 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesPostResponse.cs
@@ -37,7 +37,7 @@ public partial class AddActivitiesPostResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostResponse();
         }
         /// <summary>
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivityResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs
index 3cd871cb7dd..c113a75aa22 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/AddActivitiesResponse.cs
@@ -20,7 +20,7 @@ public partial class AddActivitiesResponse : global::Microsoft.Graph.External.Co
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs
index 8379272aec6..0100461fec3 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/Item/MicrosoftGraphExternalConnectorsAddActivities/MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder(string rawUrl
         public async Task<global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostResponse> PostAsAddActivitiesPostResponseAsync(global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public MicrosoftGraphExternalConnectorsAddActivitiesRequestBuilder(string rawUrl
         public async Task<global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesResponse> PostAsync(global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Exter
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.External.Connections.Item.Items.Item.MicrosoftGraphExternalConnectorsAddActivities.AddActivitiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/ItemsRequestBuilder.cs
index 7f3c1355c8d..25818a47169 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Items/ItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs
index 46d25f45b29..740475c0ecb 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/Item/ConnectionOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/OperationsRequestBuilder.cs
index cc562bec626..9fc342f5af3 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation> PostAsync(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/Connections/Item/Schema/SchemaRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/Connections/Item/Schema/SchemaRequestBuilder.cs
index 2d82bdac789..8331487cb24 100644
--- a/src/Microsoft.Graph/Generated/External/Connections/Item/Schema/SchemaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/Connections/Item/Schema/SchemaRequestBuilder.cs
@@ -76,7 +76,7 @@ public SchemaRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.Schema> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.Schema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -118,7 +118,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.Schema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/External/ExternalRequestBuilder.cs b/src/Microsoft.Graph/Generated/External/ExternalRequestBuilder.cs
index ae8e337787a..4a8e19ea6c0 100644
--- a/src/Microsoft.Graph/Generated/External/ExternalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/External/ExternalRequestBuilder.cs
@@ -80,7 +80,7 @@ public ExternalRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ExternalConnectors.External> PatchAsync(global::Microsoft.Graph.Models.ExternalConnectors.External body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExternalConnectors.External body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/FilterOperators/FilterOperatorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/FilterOperators/FilterOperatorsRequestBuilder.cs
index 6812b19abcd..d52edd56c36 100644
--- a/src/Microsoft.Graph/Generated/FilterOperators/FilterOperatorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/FilterOperators/FilterOperatorsRequestBuilder.cs
@@ -93,7 +93,7 @@ public FilterOperatorsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.FilterOperatorSchema> PostAsync(global::Microsoft.Graph.Models.FilterOperatorSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.FilterOperatorSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/FilterOperators/Item/FilterOperatorSchemaItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/FilterOperators/Item/FilterOperatorSchemaItemRequestBuilder.cs
index dbb2aaa137d..5ec94cdb798 100644
--- a/src/Microsoft.Graph/Generated/FilterOperators/Item/FilterOperatorSchemaItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/FilterOperators/Item/FilterOperatorSchemaItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FilterOperatorSchema> PatchAsync(global::Microsoft.Graph.Models.FilterOperatorSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FilterOperatorSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Functions/FunctionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Functions/FunctionsRequestBuilder.cs
index 63311235095..aa2bc09f4d7 100644
--- a/src/Microsoft.Graph/Generated/Functions/FunctionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Functions/FunctionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public FunctionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AttributeMappingFunctionSchema> PostAsync(global::Microsoft.Graph.Models.AttributeMappingFunctionSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttributeMappingFunctionSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Functions/Item/AttributeMappingFunctionSchemaItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Functions/Item/AttributeMappingFunctionSchemaItemRequestBuilder.cs
index a29cc07a278..dd5faeeec3b 100644
--- a/src/Microsoft.Graph/Generated/Functions/Item/AttributeMappingFunctionSchemaItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Functions/Item/AttributeMappingFunctionSchemaItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttributeMappingFunctionSchema> PatchAsync(global::Microsoft.Graph.Models.AttributeMappingFunctionSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttributeMappingFunctionSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs
index a64924b4697..ab53fd9c048 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public GroupLifecyclePoliciesRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.GroupLifecyclePolicy> PostAsync(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs
index d85316d15ad..d82c3103404 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs
index ed888ed1906..23a80ea658d 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs
@@ -42,7 +42,7 @@ public AddGroupPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs
index 56371b03a9c..83d6a76da26 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostResponse> PostAsAddGroupPostResponseAsync(global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupResponse> PostAsync(global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs
index 5f3903e3cbe..9a355759cf7 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs
@@ -20,7 +20,7 @@ public partial class AddGroupResponse : global::Microsoft.Graph.GroupLifecyclePo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupLifecyclePolicies.Item.AddGroup.AddGroupResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs
index 7323b3394ab..77ca485225e 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GroupLifecyclePolicy> PatchAsync(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs
index 1e41d0872c3..25e75605e67 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs
@@ -52,7 +52,7 @@ public RemoveGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs
index d26db5fb838..fb43e563fd6 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs
@@ -42,7 +42,7 @@ public RemoveGroupPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs
index 75ddd9d01d2..235dad7892b 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostResponse> PostAsRemoveGroupPostResponseAsync(global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupResponse> PostAsync(global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs
index df5c5b06e02..95c85326233 100644
--- a/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveGroupResponse : global::Microsoft.Graph.GroupLifecycl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaGetResponse.cs
index 64993b651df..ea5d9d10d2d 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaResponse.cs
index 1ebb82249c3..5b5c9e61e23 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.GroupSettingTemplat
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 10b48bb08db..362b6568b3a 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 5237574eb5b..f2e9e79c0a8 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 11841eb686b..68359a871e0 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 34a507b21ae..976e47b1d67 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostRequestBody.cs
index 0e16cb766f2..2feed71c57e 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostResponse.cs
index 83d80966093..d0b074c39f5 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsRequestBuilder.cs
index 9f753cce7ec..7650524c115 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsResponse.cs
index aed49f58fac..bdcd1e15044 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.GroupSettingTemp
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GroupSettingTemplatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GroupSettingTemplatesRequestBuilder.cs
index 6dbe4ca680c..bb5b958e0c2 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/GroupSettingTemplatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/GroupSettingTemplatesRequestBuilder.cs
@@ -118,7 +118,7 @@ public GroupSettingTemplatesRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.GroupSettingTemplate> PostAsync(global::Microsoft.Graph.Models.GroupSettingTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GroupSettingTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 3cfcde98c51..0a30055b4f1 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 83eec53bc3a..c7520db0a4f 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index add907229cc..bc9c5d73bf0 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index baaec3de4fa..50c0c078013 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.GroupSe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index c19164e4f37..495a868c80c 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 8823a46b71b..c04267ec4d4 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 98c6ff53cb4..fc6c4e996b8 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 84713b70323..25351d36097 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.GroupS
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index 356994b5396..0ead36f0a59 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index c5b30a3133f..341eeb5a751 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 7611d7b7266..5b330005116 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 38ed91123a6..2e3d851169c 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.GroupSett
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 7b3d868e03c..a02b3a44ba0 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index b1f2d021885..6b5982917ea 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 68aae9c7837..fec7a4b13e9 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index d63283a756f..b5f12ba1806 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.GroupSet
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GroupSettingTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GroupSettingTemplateItemRequestBuilder.cs
index 5780d6ed796..5477ec1d2f8 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GroupSettingTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/Item/GroupSettingTemplateItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GroupSettingTemplate> PatchAsync(global::Microsoft.Graph.Models.GroupSettingTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GroupSettingTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 1dfb9a06805..e76700a0123 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.GroupSettingTemplates.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.GroupSettingTemplates.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index f6ad957257f..2cc6b6d4c51 100644
--- a/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettingTemplates/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.GroupSettingTemplates.Valida
         public async Task PostAsync(global::Microsoft.Graph.GroupSettingTemplates.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.GroupSettingTemplates.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettings/GroupSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettings/GroupSettingsRequestBuilder.cs
index 4fc8bd9b6af..0366bb521a5 100644
--- a/src/Microsoft.Graph/Generated/GroupSettings/GroupSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettings/GroupSettingsRequestBuilder.cs
@@ -95,7 +95,7 @@ public GroupSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.GroupSetting> PostAsync(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupSettings/Item/GroupSettingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupSettings/Item/GroupSettingItemRequestBuilder.cs
index 5e25c7e6c0b..bc6c6a840c7 100644
--- a/src/Microsoft.Graph/Generated/GroupSettings/Item/GroupSettingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupSettings/Item/GroupSettingItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GroupSetting> PatchAsync(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Delta/DeltaGetResponse.cs
index 95d1a41823d..05fd30c3c09 100644
--- a/src/Microsoft.Graph/Generated/Groups/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Group>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Delta/DeltaResponse.cs
index 9a1d6105c8c..80f8337d7bd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Delta.DeltaG
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index fc0d34306ff..e706c28b0a3 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 05a39f8be21..d1fd0642026 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index d237fbe1b33..70939b32b54 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 7c6057d6d56..4e22e2dee59 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostRequestBody.cs
index 4ab920bd9b5..c063349ff73 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostResponse.cs
index 9d6253a4051..f7b4297a019 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsRequestBuilder.cs
index 687e9e44f77..5ee4151dd0b 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Groups.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsResponse.cs
index b575d79cee7..4f44d65f263 100644
--- a/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.Groups.GetByIds.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/GroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/GroupsRequestBuilder.cs
index 1b72f910f6b..8829c5e5d6c 100644
--- a/src/Microsoft.Graph/Generated/Groups/GroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/GroupsRequestBuilder.cs
@@ -102,8 +102,8 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.GroupCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.GroupCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new group object if it doesn&apos;t exist, or update the properties of an existing group object.You can create or update the following types of group: By default, this operation returns only a subset of the properties for each group. For a list of properties that are returned by default, see the Properties section of the group resource. To get properties that are not returned by default, do a GET operation and specify the properties in a $select OData query option.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/group-upsert?view=graph-rest-1.0" />
+        /// Create a new group as specified in the request body. You can create the following types of groups: This operation returns by default only a subset of the properties for each group. These default properties are noted in the Properties section. To get properties that are not returned by default, do a GET operation and specify the properties in a $select OData query option.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/group-post-groups?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.Group"/></returns>
         /// <param name="body">The request body</param>
@@ -119,7 +119,7 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Group> PostAsync(global::Microsoft.Graph.Models.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a new group object if it doesn&apos;t exist, or update the properties of an existing group object.You can create or update the following types of group: By default, this operation returns only a subset of the properties for each group. For a list of properties that are returned by default, see the Properties section of the group resource. To get properties that are not returned by default, do a GET operation and specify the properties in a $select OData query option.
+        /// Create a new group as specified in the request body. You can create the following types of groups: This operation returns by default only a subset of the properties for each group. These default properties are noted in the Properties section. To get properties that are not returned by default, do a GET operation and specify the properties in a $select OData query option.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -161,7 +161,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/AcceptedSenders/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/AcceptedSenders/Ref/RefRequestBuilder.cs
index cf33ff6ecba..f714fd154bc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/AcceptedSenders/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/AcceptedSenders/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/groups/{group%2Did}/acceptedSenders/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
index baff7df927d..6b76b8826f1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppRoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PostAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
index 65c70427169..e75d36f54b2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicensePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicensePostRequestBody.cs
index e5e0ef37755..633c00f21a2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicensePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicensePostRequestBody.cs
@@ -69,7 +69,7 @@ public AssignLicensePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.AssignLicense.AssignLicensePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.AssignLicense.AssignLicensePostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssignedLicense>("addLicenses", AddLicenses);
             writer.WriteCollectionOfPrimitiveValues<Guid?>("removeLicenses", RemoveLicenses);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicenseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicenseRequestBuilder.cs
index 02d4fba6854..0bd3b4b0d36 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicenseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/AssignLicense/AssignLicenseRequestBuilder.cs
@@ -52,7 +52,7 @@ public AssignLicenseRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Group> PostAsync(global::Microsoft.Graph.Groups.Item.AssignLicense.AssignLicensePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.AssignLicense.AssignLicensePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
index f90a54b5eb7..60e3eed43d4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AllowedCalendarSharingRolesWithUserGetResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
index 752baec3c68..3eb5ae44384 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
@@ -20,7 +20,7 @@ public partial class AllowedCalendarSharingRolesWithUserResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
index 73a93e55e64..694b70d74dc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarPermissionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PostAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
index e20a96a2cf0..ed006ee1db7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PatchAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs
index ee233c22408..cb0c9305677 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaResponse.cs
index ad3d217a3e2..746486d3dff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Calenda
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaGetResponse.cs
index 44416a9a386..c98e083a9bc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaResponse.cs
index f1a7b45dd02..2f0aaa8b37f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Calenda
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/EventsRequestBuilder.cs
index 6d142ccadfc..92261eb997c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/EventsRequestBuilder.cs
@@ -99,7 +99,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
index 064bb380d2f..90b73ceb240 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
index c808f90cde9..83edae15bde 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index 5b3eef7b987..fd5767269c9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 6ed47a7e6e7..c809085fd49 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index da3670f4d6f..f85f7fe18fb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
index 11fafe1a3ab..d37b7a33467 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
index bdd96f3c2d2..8e5cd7f0054 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
index 19976903a39..516fd14fa05 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
index da4858d5dd1..8b0f0e9a105 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/EventItemRequestBuilder.cs
index abc80bfa20c..f34fef74d4e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/EventItemRequestBuilder.cs
@@ -169,7 +169,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -230,7 +230,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index 1ebb6c2e4ac..cc692e29036 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index d288c0baf2c..97a415bade9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
index ca4e612c210..f206e6b9dcb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
index 160af8fdee0..9590087ffd5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
index d75942a7881..e869ba40448 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
index f3d61bc6304..c5eb3ab5200 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Calenda
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 9a57309426d..3dc7763aa6c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index f22e7cfd30a..45e4691c0a9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index 8bed20d4779..3a467f5333e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index c8e80df9b01..ff99c889362 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
index 7a1123f4d3c..f05f9cbda72 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
@@ -91,7 +91,7 @@ public GetSchedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("AvailabilityViewInterval", AvailabilityViewInterval);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("EndTime", EndTime);
             writer.WriteCollectionOfPrimitiveValues<string>("Schedules", Schedules);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs
index 5665e97b2d4..68074925d0c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSchedulePostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScheduleInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
index edff9a6d1b5..3ee314f38d7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostResponse> PostAsGetSchedulePostResponseAsync(global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetScheduleResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleResponse.cs
index e03bfc1ae29..59492645d51 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Calendar/GetSchedule/GetScheduleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetScheduleResponse : global::Microsoft.Graph.Groups.Item.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetScheduleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Calendar.GetSchedule.GetScheduleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaGetResponse.cs
index c0a76cc9f29..42ff9a244e5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaResponse.cs
index 488404c5ab2..1f4777d2693 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Calenda
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppPostResponse.cs
index 81bc97b101e..5ed5eaac1be 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppPostResponse.cs
@@ -36,7 +36,7 @@ public partial class CheckGrantedPermissionsForAppPostResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CheckGrantedPermissionsForApp.CheckGrantedPermissionsForAppPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckGrantedPermissionsForApp.CheckGrantedPermissionsForAppPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppResponse.cs
index 539a2567e17..79376f9571a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckGrantedPermissionsForApp/CheckGrantedPermissionsForAppResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckGrantedPermissionsForAppResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CheckGrantedPermissionsForApp.CheckGrantedPermissionsForAppResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckGrantedPermissionsForApp.CheckGrantedPermissionsForAppResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index fba483bd863..b44b2e707f7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 41d40131f10..46b8a818fbf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 49b9154a8a9..73a4df8a98b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index 961819be21c..0486dda05e1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Groups.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index 885728f7ca0..518153a872e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index a01c69deb18..4ce48e06c3c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 560cef661bc..cf1328e6017 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 9d691483c43..c5f96e1e104 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Groups
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/ConversationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/ConversationsRequestBuilder.cs
index 3d0ba1f2ac2..f67c4b9f1c8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/ConversationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/ConversationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ConversationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Conversation> PostAsync(global::Microsoft.Graph.Models.Conversation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Conversation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/ConversationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/ConversationItemRequestBuilder.cs
index 5559ddb44ef..e65d4c4c07a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/ConversationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/ConversationItemRequestBuilder.cs
@@ -42,7 +42,7 @@ public ConversationItemRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         }
         /// <summary>
         /// Delete conversation.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/conversation-delete?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/group-delete-conversation?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs
index 37c6ba24392..cc43a499a0d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationThread> PatchAsync(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs
index 48fcba98643..17f81d6debb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 90385235599..981df3c3194 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index f6b4720d932..336673a7790 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs
index 2be16691144..da4f4869816 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 049514b87e8..a3e7f5732ed 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs
index e96ec1c3bc5..1a379d025c5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs
index bcd145a55c8..3122e3bf7c6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs
index dc71258d933..2c7b0e4e9e3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index b10bb0b35b7..9cb444e77c7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 2a1ceb2992c..f7e09df305a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs
index 25d9c7e9b38..8337b1561d2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs
index 8833ceddf13..3cec2a3171b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs
index ec9b35fea54..b11e3298fab 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs
index 1267626b65d..bfa721ab929 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs
index b9fa4f8b30e..145919a879d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Post>("Post", Post);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs
index 01940f47031..73086cbe7bb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs
index a6687463a33..9e87360ec94 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Post>("Post", Post);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs
index 4ee68f591a8..6010b9984a5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyPostRequestBody.cs
index 2ec808a6e5f..8e7195dde1c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Post>("Post", Post);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyRequestBuilder.cs
index 026d20bb5fd..3fd7c179e61 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/Item/Reply/ReplyRequestBuilder.cs
@@ -34,8 +34,8 @@ public ReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         {
         }
         /// <summary>
-        /// Reply to a post and add a new post to the specified thread in a group conversation.  You can specify both the parent conversation and thread in the request, or, you can specify just the parent thread without the parent conversation.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/post-reply?view=graph-rest-1.0" />
+        /// Create an open extension (openTypeExtension object) and add custom properties in a new or existing instance of a resource. You can create an open extension in a resource instance and store custom data to it all in the same operation, except for specific resources. The table in the Permissions section lists the resources that support open extensions.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/opentypeextension-post-opentypeextension?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="body">The request body</param>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -59,7 +59,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Conversations.It
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Reply to a post and add a new post to the specified thread in a group conversation.  You can specify both the parent conversation and thread in the request, or, you can specify just the parent thread without the parent conversation.
+        /// Create an open extension (openTypeExtension object) and add custom properties in a new or existing instance of a resource. You can create an open extension in a resource instance and store custom data to it all in the same operation, except for specific resources. The table in the Permissions section lists the resources that support open extensions.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Conversations.Item.Threads.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/ThreadsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/ThreadsRequestBuilder.cs
index 0cb59261157..ef2407e8dbc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/ThreadsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Conversations/Item/Threads/ThreadsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ThreadsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationThread> PostAsync(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaGetResponse.cs
index c4ab894812a..2817d14d388 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaResponse.cs
index 40c87abb32f..fab71b92146 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Events.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/EventsRequestBuilder.cs
index 291219dca1a..f96301e0314 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/EventsRequestBuilder.cs
@@ -101,7 +101,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptPostRequestBody.cs
index cd9af92b539..e58c990eb09 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptRequestBuilder.cs
index 6c433f72fac..14070541465 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Acce
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index a10bf4ff757..e555e0841a4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 25d7d07e23e..8fd561fc1dc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 863eee4fdb5..a9af6f34baf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelPostRequestBody.cs
index ccf81b26830..8ee967217b1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelRequestBuilder.cs
index 0dbb9500f4a..7d4ee986310 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Canc
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclinePostRequestBody.cs
index 5c69587f70e..f985d495eaf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclineRequestBuilder.cs
index e44253f698c..913645d5532 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Decl
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/EventItemRequestBuilder.cs
index 05b5443346d..d6f9a13e96a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/EventItemRequestBuilder.cs
@@ -170,7 +170,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -231,7 +231,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index 1fcdf23da7b..6c93ed1b7ac 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 92b7d985bf2..a2a6d16feb1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardPostRequestBody.cs
index ea4cfd8a89f..d65fde52589 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardRequestBuilder.cs
index b86427586ba..3773970b50a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Forw
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
index dd67aa1c9db..789064cdd0a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaResponse.cs
index 7704f89ba1b..681353edb8c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Events.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 9ff402060df..4bd13975ebb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index 79019eab37b..f27720faaf1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Snoo
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index 991ed98995f..62a5388a9e9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index 9990f7f1de0..722e372df9b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.Tent
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Extensions/ExtensionsRequestBuilder.cs
index 67d861f60ff..9efe7a1269a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index d49c43e8dd8..05e27f0ffb6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index c03f720925c..cb36c4219c1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index d0340ff02bc..989ce0c0bc4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index f0b3a030aca..453f66ff882 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 471a29ca750..c34081ea666 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Groups.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index d8bc9b47388..e50f47b520b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 56e384de1bc..8af165bd409 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index d81b3ba8c91..6c979098ff5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index cfa6ac3c85c..56c82713b24 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Groups.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupItemRequestBuilder.cs
index 20eefdbdbc6..a50dc0e0fb6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupItemRequestBuilder.cs
@@ -357,7 +357,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Group> PatchAsync(global::Microsoft.Graph.Models.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -418,7 +418,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs
index dd2c18b0b21..87b12fe68d5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/GroupLifecyclePoliciesRequestBuilder.cs
@@ -94,7 +94,7 @@ public GroupLifecyclePoliciesRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.GroupLifecyclePolicy> PostAsync(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs
index e7335dadbb5..4ed72d992e2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs
index d3953e6117f..8c5f689b737 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupPostResponse.cs
@@ -42,7 +42,7 @@ public AddGroupPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs
index d21cc22e3a0..e95a8d3d77c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostResponse> PostAsAddGroupPostResponseAsync(global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupResponse> PostAsync(global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs
index 52a136f8c31..804f5c6040e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/AddGroup/AddGroupResponse.cs
@@ -20,7 +20,7 @@ public partial class AddGroupResponse : global::Microsoft.Graph.Groups.Item.Grou
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.AddGroup.AddGroupResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs
index c129d18ef19..4ee79fe772d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/GroupLifecyclePolicyItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GroupLifecyclePolicy> PatchAsync(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GroupLifecyclePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs
index 0558787e083..09293607787 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostRequestBody.cs
@@ -52,7 +52,7 @@ public RemoveGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs
index ca99dd2558b..afdd24128c4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupPostResponse.cs
@@ -42,7 +42,7 @@ public RemoveGroupPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs
index 699b8507eed..d916bb56ae0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostResponse> PostAsRemoveGroupPostResponseAsync(global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveGroupRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupResponse> PostAsync(global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs
index 8006316b4ff..25643db2508 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/GroupLifecyclePolicies/Item/RemoveGroup/RemoveGroupResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveGroupResponse : global::Microsoft.Graph.Groups.Item.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.GroupLifecyclePolicies.Item.RemoveGroup.RemoveGroupResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Members/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Members/Ref/RefRequestBuilder.cs
index b6540cee727..fef9a31b7fa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Members/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Members/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/groups/{group%2Did}/members/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
index 8f991db9af4..55bf978bc7d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("webUrl", WebUrl);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
index b91d6859e98..18563cefcc2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.CopyNotebookModel> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
index 1f898300ee6..847e9a1a3a2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksGetResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecentNotebook>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
index 578d042fe26..794279a05ed 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
@@ -20,7 +20,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
index c0ee2ca9166..9f239d1f7ff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("notebookFolder", NotebookFolder);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
index 9f378a008cd..b0704b5a124 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
index b01e2804640..30c69772ad2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Notebook> PatchAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index 16d978d5340..7678b5b80f1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index c497b745ef9..98803de8606 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 1f0b0f680a4..72a6fab9e3c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index de3d03f4529..f2501eba774 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 7ed52a77a79..9ff310cd6b2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 48636f3c35d..438448199a5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 7a85f4db124..06e21c50e4f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 3ed83efbbfe..c8e87af79d4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index b73ee83264c..373c38016ed 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index efd318e1556..015845910a5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index d403bf279a0..ede5a700ce5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index e87eddbb847..51a9d360205 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebook
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index e4439429190..0e7de7f2a08 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index c499f34667a..3ab42c78550 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
index c74d6bb6576..90f431ac7c5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 2d215a4bd1f..72dfe12c0b7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 78335037ed0..8dc90638c08 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 2d7858ba9ab..e2082cbe466 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index e28e7c54b5d..d90c5c2994f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 395547b3941..37bfb9876e7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 5eca96514ee..fbf39a98438 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index e67e85cde67..1f40aa95e7a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 8ef279e9976..d939f1d524d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 3f2f0840705..28b9afe72e4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 83fc06feb06..98a39e3cf09 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 6bee631c18b..d287cf034c9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebook
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 3b7c9e1682a..7f0b0d19663 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
index c78a26f4c4a..d251b851883 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
index 289ffba65fe..f73d8cee156 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
@@ -90,7 +90,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="includePersonalNotebooks">Usage: includePersonalNotebooks={includePersonalNotebooks}</param>
         public global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder GetRecentNotebooksWithIncludePersonalNotebooks(bool? includePersonalNotebooks)
         {
-            _ = includePersonalNotebooks ?? throw new ArgumentNullException(nameof(includePersonalNotebooks));
+            if(ReferenceEquals(includePersonalNotebooks, null)) throw new ArgumentNullException(nameof(includePersonalNotebooks));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder(PathParameters, RequestAdapter, includePersonalNotebooks);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Notebook> PostAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/OnenoteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/OnenoteRequestBuilder.cs
index cda8339eb27..953dfccd712 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/OnenoteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/OnenoteRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Onenote> PatchAsync(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
index d72c2a03f6a..ce60f8af84e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PatchAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/OperationsRequestBuilder.cs
index 1273aab6d89..4ea2196ed03 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
index c392c5773f3..bf34bdadb3a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index edea123a433..f014fd80b5f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index c9167db8ed8..a0887d2e713 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
index 617bf451518..5cc985be7b7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index b7ba455b733..01e45afe1e6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 42ab9563eae..3b0e68669f0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Pages.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/PagesRequestBuilder.cs
index b94b1a55ffb..b4be191f1bf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
index 36208e0a8e0..bb54ea4c43d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
index 4a8d5a16aeb..f34ed01acdd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PatchAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/ResourcesRequestBuilder.cs
index 65adfc95f5e..122d4cf0a60 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PostAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index 7ba09a02943..cc9f4328db3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 12c10b0d834..38c1d7605eb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 24d5fe1a4cd..fc4f44f8ab3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index f2a35c26590..046777fcfac 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 724b21e9a58..6c2efb6f459 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index e0c92861eab..2d314935b62 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 2c80bea7fe1..d8f681c8c15 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index faf21c55ae9..e923f3c0686 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 61c6c5ac4fc..9f9df48d780 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index dfc02acb94b..848d01f2e28 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 4f253fddb5e..7c4788e0571 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 43b1bbc4e9e..c630e059717 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.SectionG
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 6a6998c8183..aab76c99878 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index 7b65cd30988..50830546403 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
index ed2a99e01dd..70c29b02def 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 3a93a4b3613..4e5d3ba63b3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 39c5e51fdb9..ebe67b814cd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 441ebaa3895..25f37ae572a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 5701e87c775..618a1534f56 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 0c46cf5d784..c663fd1ecf6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index e2b7e3ef50c..8883b1dfa06 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index bc573316287..7fc67d45ff3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 13c4967e708..10c2c582e98 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 5a1593b57db..8cbf7b3ef45 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index d0bff2607ef..763beb43773 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 2da9a7a17cd..e8c458bd276 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Sections
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
index e08d84ac496..e5c3cdb811b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/SectionsRequestBuilder.cs
index a4efa57b4af..80885f8aef1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Onenote/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Owners/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Owners/Ref/RefRequestBuilder.cs
index 0da4d26fe1a..960ca4bbea4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Owners/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Owners/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/groups/{group%2Did}/owners/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 53afae176cc..831b168fdb9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index dbaf889ee46..f8932fd535c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Photo/PhotoRequestBuilder.cs
index a19f425a4f6..00be7c779de 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Photo/PhotoRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Photo/Value/ContentRequestBuilder.cs
index 03d08aa4fdd..8ee3c772c45 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Photos/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Photos/Item/Value/ContentRequestBuilder.cs
index d3ddc95edd1..4223e9112ff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Photos/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Photos/Item/Value/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/PlannerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/PlannerRequestBuilder.cs
index 64892f1bf1b..21794298b59 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/PlannerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/PlannerRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerGroup> PatchAsync(global::Microsoft.Graph.Models.PlannerGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
index f69012d57b5..48f19444f0f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
@@ -93,7 +93,7 @@ public BucketsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PostAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
index d79b45988ee..a452597557d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PatchAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 20b197e8d1f..b8f5f764db6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index 709a68dbf19..b677a3809f1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index 6d4802d3f9e..7d564eabec3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 18c0f80acfa..d83ffdc0c78 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 2c67571e9bf..c7c9437589d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
index d98b35d3b5b..59966d6aded 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
index a456a9bdcab..814c118a7ce 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlanDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
index e6111dd09c2..c78da2b5c02 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PatchAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 5ec83ce0a7c..4573fda2e1f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index 4fab9c4bf53..dbce2ca0a7b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index 28f572f9d20..3d3ebfd2c7b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 0ef72668f22..541bbf0f0e9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 958d07a829f..981c7e94f85 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
index 189a926e33e..8ccc1b8327b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/PlansRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/PlansRequestBuilder.cs
index 1e61ae0fd49..4d4a2562513 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/PlansRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Planner/Plans/PlansRequestBuilder.cs
@@ -94,7 +94,7 @@ public PlansRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PostAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/RejectedSenders/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/RejectedSenders/Ref/RefRequestBuilder.cs
index c2b24866c64..7586e081ff9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/RejectedSenders/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/RejectedSenders/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/groups/{group%2Did}/rejectedSenders/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Settings/Item/GroupSettingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Settings/Item/GroupSettingItemRequestBuilder.cs
index 91dc49fec2c..e9adfedd34d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Settings/Item/GroupSettingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Settings/Item/GroupSettingItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GroupSetting> PatchAsync(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Settings/SettingsRequestBuilder.cs
index 186d46e8da6..6473e0986c2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Settings/SettingsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.GroupSetting> PostAsync(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GroupSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostRequestBody.cs
index b524f172e5e..a825f775f82 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostResponse.cs
index d562580cee4..442ae3bd39c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddRequestBuilder.cs
index 131662228ec..bcfe70a9356 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Sites.Add.AddResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddResponse.cs
index 120501a87f6..ec187f1732a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Groups.Item.Sites.Add
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaGetResponse.cs
index b065e6e1c97..87fb58d2bf0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaResponse.cs
index cda71927d7f..ae056d36865 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Sites.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesGetResponse.cs
index 0e089b003b8..d48fece4e3c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllSitesGetResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.GetAllSites.GetAllSitesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.GetAllSites.GetAllSitesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesResponse.cs
index 614dd887992..63da3055168 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/GetAllSites/GetAllSitesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllSitesResponse : global::Microsoft.Graph.Groups.Item.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.GetAllSites.GetAllSitesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.GetAllSites.GetAllSitesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/AnalyticsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/AnalyticsRequestBuilder.cs
index 6b5852ece16..714c430736a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/AnalyticsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/AnalyticsRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemAnalytics> PatchAsync(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
index 85b140b6ba0..a93fde2d81c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ItemActivity> PostAsync(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
index 8b8d790c22e..7fb6db766a7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
index 44ef7834729..bd36692817e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemActivity> PatchAsync(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
index b9273c5bb86..f7ba396439a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemActivityStat> PatchAsync(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
index f2c14c42eb7..fbc6a965786 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemActivityStatsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.ItemActivityStat> PostAsync(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/ColumnsRequestBuilder.cs
index eabfbbe3efd..246cc0fccb7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index c69dcfbe741..be7f3da011d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
index 9352f5f5513..096fa07a5dd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
index 4f3d87262fb..4978164ada5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
index 4c5aedfc050..41fb6584127 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentTypeId", ContentTypeId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
index 2f1d5f9d553..a9dc9809a6d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs
index a6e918facab..fffa8417905 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs
@@ -111,7 +111,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
index 556fa6ad429..086d2f9b371 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetCompatibleHubContentTypesGetResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
index 0ec7342cb37..a3c6932ee02 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetCompatibleHubContentTypesResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
index af3aecbf7c7..93c626ac0ae 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
@@ -58,7 +58,7 @@ public AssociateWithHubSitesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("hubSiteUrls", HubSiteUrls);
             writer.WriteBoolValue("propagateToExistingLists", PropagateToExistingLists);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
index c757db7e4a4..e340d4fedcc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Conte
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
index aeb1a274fe0..2c464ef0d0d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnLinksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PostAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
index 0f48cc94c47..777ea92c4cc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PatchAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
index c272e54ada8..0423e380c8b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index 954eb0cd5a5..3fa9251f832 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
index 71b80ad3db2..fdd275fb131 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
@@ -156,7 +156,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentType> PatchAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -217,7 +217,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
index ac18a0f645e..ad38e7168bc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
@@ -69,7 +69,7 @@ public CopyToDefaultContentLocationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("destinationFileName", DestinationFileName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemReference>("sourceFile", SourceFile);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
index 0fba4f85673..617a7feb8d7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Conte
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
index 8cb34b0980e..f4c6fd253de 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
@@ -42,7 +42,7 @@ public IsPublishedGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
index 500b1d40987..cf8bf01f725 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
@@ -20,7 +20,7 @@ public partial class IsPublishedResponse : global::Microsoft.Graph.Groups.Item.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 52f3d4842bf..eb5262ea9e7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 17b89273b99..43a980d3788 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index e8a79132398..528c5cafeb3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index 4b10fcb69d3..2c7fb05b4b4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index 29c7d99211f..d4f2721de0b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
index 693e4aeb8b1..f312803b656 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetApplicableContentTypesForListWithListIdGetResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
index 30bdf6d7863..39be464677c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
@@ -20,7 +20,7 @@ public partial class GetApplicableContentTypesForListWithListIdResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs
index 2568e709c9c..125b1f66a21 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemAnalytics> PatchAsync(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs
index 1e95e1f4cff..7ac37eb8dc5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs
@@ -74,7 +74,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs
index 028073ecda0..fcec4a9b110 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs
@@ -74,7 +74,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 1afa774f266..e9bebf508e9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index 1a082014e0e..d6b6d070e53 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index 38eb923fba6..487dd5a7bff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index d949aad27c3..4ba8639690d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
index 62069240fe0..551b9bf874c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetApplicableContentTypesForListWithListIdGetResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
index 3cce2593643..bec559dcd10 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
@@ -20,7 +20,7 @@ public partial class GetApplicableContentTypesForListWithListIdResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs
index ef51e3ba2ca..2ba95b21a30 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs
@@ -74,7 +74,7 @@ public ListsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.List> PostAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs
index d7437102494..0d1608e7aef 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Onenote> PatchAsync(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs
index 25472f0d80e..efe7822235a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs
@@ -74,7 +74,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs
index 78ce824ed41..385fb7925ff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs
@@ -74,7 +74,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.BaseSitePage> PostAsync(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs
index d56e78c9298..cd72032a054 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs
@@ -74,7 +74,7 @@ public PermissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs
index 1df9e5630f2..0637ae5f9c7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PatchAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs
index ca80d106139..835928564f7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs
@@ -74,7 +74,7 @@ public TermStoresRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PostAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 58fc752b49f..b99de83e16d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs
index 8f64cdca9c4..513a925e8dc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index d05acf46aa0..ccc1dbe2d70 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
index 5b733e616ca..6db60d0fc6d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
index 37385c2d74e..6b114daf884 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
index cb506280fe2..aeec8230135 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentTypeId", ContentTypeId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
index 4d117b52e72..c1f253ce7a0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs
index 7fdd1d750a0..f601a361bcd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs
@@ -111,7 +111,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
index deccf4500a0..abdeda2b794 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetCompatibleHubContentTypesGetResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
index c5b4e136039..531d74c6155 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetCompatibleHubContentTypesResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
index 1083e3b66ac..23021557f8e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
@@ -58,7 +58,7 @@ public AssociateWithHubSitesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("hubSiteUrls", HubSiteUrls);
             writer.WriteBoolValue("propagateToExistingLists", PropagateToExistingLists);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
index 5fba607ad19..8b13379ab03 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
index f9b2a046626..8915ccd13b3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnLinksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PostAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
index 395c87f3d12..6bed25d59bd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PatchAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
index 39f64e191f3..c391cbb3a99 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index feb2797da59..85c985d0493 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
index 55a12644235..0e728d363e4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
@@ -156,7 +156,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentType> PatchAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -217,7 +217,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
index 83561caa2af..fbd8eae63c3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
@@ -69,7 +69,7 @@ public CopyToDefaultContentLocationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("destinationFileName", DestinationFileName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemReference>("sourceFile", SourceFile);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
index 30b3feeb1e2..54474f25ccb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
index 89b01347854..7281d166b3f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
@@ -42,7 +42,7 @@ public IsPublishedGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
index 5226d4197e0..64cc49639a2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
@@ -20,7 +20,7 @@ public partial class IsPublishedResponse : global::Microsoft.Graph.Groups.Item.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 900dd225305..fc4a8de7025 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs
index 60fc64ef202..88fd482578a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs
index 6352f7fcee1..a1b801ad64a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Sites.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
index f3eec07423d..6f7fc5e1b86 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaWithTokenGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs
index 1720b02e7cd..d255247e099 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaWithTokenResponse : global::Microsoft.Graph.Groups.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
index ca8dbeea6c5..114d09063cf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
@@ -135,7 +135,7 @@ public CreateLinkPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("password", Password);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
index 6e2adda3a93..0dd4c7d3ced 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
@@ -51,7 +51,7 @@ public CreateLinkRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 02662f0322e..8735998740f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
index 4ef2dd542a1..552bb63d6e0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DocumentSetVersionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PostAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
index 8e814a7f8fe..99fa3e86f80 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PatchAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
index 8e4604bec33..4ab65a75b16 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
index 26f2ab25507..933fef9bfb9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs
index 0f555b45158..190433e3caf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 2967015d782..c603b397028 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index 0a9721147f7..f001b625d68 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index deb2f24ed6e..cf362da9a5a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index 06b0fa59a18..a361966b31d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 95613b36e42..07a90d3628a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs
index 62618e978ed..bcf808574d6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs
@@ -165,7 +165,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItem> PatchAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -226,7 +226,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
index afe52feac87..29cb1397c2e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
index ad1cc620bf6..2472ffba0f6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PatchAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs
index 084587a6d6e..3b5b591859b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PostAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs
index aac80d8c0cd..8e2df0613c2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs
@@ -104,7 +104,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ListItem> PostAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index fcade1f838d..8be4a6a8ca4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ListItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ListItemRequestBuilder.cs
index 02e280d588f..41b72db4baa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ListItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/ListItemRequestBuilder.cs
@@ -144,7 +144,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.List> PatchAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -205,7 +205,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
index 83c501f0645..b43ccf6ead7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs
index 7482fa4d6b4..d583086c477 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
index 158f19ba00e..e1f231a28ff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Subscription> PatchAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs
index 9cfbb9e9ee0..edf22d7fb61 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubscriptionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Subscription> PostAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/ListsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/ListsRequestBuilder.cs
index ae6b6c3d6e7..d7d518d744e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/ListsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Lists/ListsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ListsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.List> PostAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
index e8c70cf4d5d..62712f823e2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("webUrl", WebUrl);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
index e3d40229703..eeea5cef3c9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.CopyNotebookModel> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
index 731f3d3b0c7..5d6ea6b6536 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksGetResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecentNotebook>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
index 5cb9ab015bc..eb3d74ab3c0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
@@ -20,7 +20,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
index 6a3dbd9fdbb..f86f47e6644 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("notebookFolder", NotebookFolder);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
index 7551251646a..11f038b3d96 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
index 4f6a62a47e7..13c47d6e1fe 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Notebook> PatchAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index c21284c19f9..2491b6c4db1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 9322516e8e3..876855804db 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 153618dd460..7e5dd920883 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 0d9e20a6b51..214c2e372fa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index d532ed66bcf..555f1793b4f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 55802dcf2b9..47fd12c2b28 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 4fb947854e7..edf73603a7e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 998292495c6..f2b150eb652 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 18bd8853b72..9c9fce9fcc0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 5ccba9bc8e0..9b3942679fa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 546a65898da..0ebd1755084 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index b36c30d2bb3..0b3424558ec 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Oneno
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 3ff7190c736..3311f939e7e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index 7bd73197a05..0ab08fe2001 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
index f6fe6c3b7af..82ac78dc367 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index e853b4c55a5..55dc620e00a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index aa6faaf869d..7cdbbba7a3d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 4ab420ee7ad..ec0f1ae6f42 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 4f902dc95a6..1d5d01539c8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 31ba227d424..d5c5fc944f5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index ea530b79df4..3f688db6301 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 89590947b95..1018e229516 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 964eb074324..e93ac6a3ba7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 9ff3d68e52f..47807846777 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 6579e816589..d686f991548 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index f1879231e34..0814ff591bc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Oneno
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index fa0e4a5f476..dc44121548e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
index c3cbe57c293..722ececc822 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
index d0f56f2602c..5d39b4adb7f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
@@ -90,7 +90,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="includePersonalNotebooks">Usage: includePersonalNotebooks={includePersonalNotebooks}</param>
         public global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder GetRecentNotebooksWithIncludePersonalNotebooks(bool? includePersonalNotebooks)
         {
-            _ = includePersonalNotebooks ?? throw new ArgumentNullException(nameof(includePersonalNotebooks));
+            if(ReferenceEquals(includePersonalNotebooks, null)) throw new ArgumentNullException(nameof(includePersonalNotebooks));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder(PathParameters, RequestAdapter, includePersonalNotebooks);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Notebook> PostAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/OnenoteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/OnenoteRequestBuilder.cs
index fa6e92d258e..88ad5407ac8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/OnenoteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/OnenoteRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Onenote> PatchAsync(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
index aa01fac5477..e9d1aeb2a02 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PatchAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs
index 5c74db506b2..da32b1cd7af 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
index 91c05b3be4b..3850af686b1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 0f99aea2e57..e12bbdb875f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 7847cb58dab..1b9269120b0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
index 9023e836871..f228b0c2c06 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 9ada4065b07..7c4d42197a9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 5938265f156..c81852df310 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Oneno
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs
index a9c0534be60..5e4bdf3001c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
index 3d299580d7d..69bd13f047f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
index 3a6e6675415..12d93868208 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PatchAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs
index bcb939ad599..aff9239e697 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PostAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index 651447110ac..0132cd7955c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index c4264551434..b418d9a46e8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 7d67c98560a..5d0e26ecf5c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 79d08dff925..385a27a41d2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 4d8f4e117f9..0329c395ffd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index eec274017cb..df05bff2436 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index a3f04a2b330..18f45d9070f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index b6944858a52..f4aaf826de3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 502dfa99e23..80c0d4cf4b0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index bea9541e59c..66a89ffc15c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index befc14e42b9..49017a00be7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 40d8f9a3710..a636ca08207 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Oneno
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 02bbb6ce2b8..5e25b522e32 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index de02da10342..246487ee6ae 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
index 4aa0d7beddd..858e4aeb98e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 5baf6e6fd25..1a6ee40c7a9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index c3b22fc9c57..0806646acab 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index abdc85933de..52966607701 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 16432a8cc64..d574de4e5c4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 9d37b394076..cdd2da446fc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 39e37ab68d9..852e66b093e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 9ac1f68a8cf..69f80a9d1b6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index cb408665561..9f019a8de89 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index ba7441a3c92..d7b170dc7c4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 466925aad58..e3e8d935fa5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 9aadd6bbd89..c683c2ae5e8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Oneno
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
index d538f62cbd1..e8e92488d70 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs
index 894abf6eca7..6ec99b0f71e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
index cd037fa9c81..401a70b0e39 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/OperationsRequestBuilder.cs
index 5960099dcc4..79cb580d5c6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs
index 3196922ed71..d5f5c702885 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BaseSitePage> PatchAsync(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index fbaa4072379..cedf594e513 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs
index 7042e7fab41..748a6ccdced 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CanvasLayout> PatchAsync(global::Microsoft.Graph.Models.CanvasLayout body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CanvasLayout body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs
index 0d79cac18ca..e18e29b0a73 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HorizontalSectionsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.HorizontalSection> PostAsync(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs
index 926e06a1c7f..dfeea0bcab3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.HorizontalSectionColumn> PostAsync(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs
index ac432f35378..a1653903faa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.HorizontalSectionColumn> PatchAsync(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs
index 511c6a496e1..c4b3437fcd5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WebPart> PatchAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs
index 56938ca0400..fb09f171799 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WebpartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WebPart> PostAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs
index cf35809c738..2a053c5e759 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.HorizontalSection> PatchAsync(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs
index b1f05e39c25..e844caab9d7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VerticalSection> PatchAsync(global::Microsoft.Graph.Models.VerticalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VerticalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs
index 56993c773b4..809d5520f2a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WebPart> PatchAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs
index 43a5e3c3308..d6b5d999d34 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WebpartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WebPart> PostAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 482c56390ff..1db5f48ef63 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 27a097fcf46..e846422fc92 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs
index ad93dc00cd7..c530d8957e6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WebPart> PatchAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs
index 9b470d27c8b..b4b7b435757 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WebPartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WebPart> PostAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index a42a06b267b..2e3c7b31f78 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/PagesRequestBuilder.cs
index d42d15b7a75..1c9a1eb5484 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Pages/PagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.BaseSitePage> PostAsync(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
index 2b908e06a85..d88a5611522 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
@@ -69,7 +69,7 @@ public GrantPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRecipient>("recipients", Recipients);
             writer.WriteCollectionOfPrimitiveValues<string>("roles", Roles);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs
index 9b035ce3a6b..308a5045ecf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GrantPostResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
index 9f178d2a985..2837f1f66e5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
@@ -51,7 +51,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostResponse> PostAsGrantPostResponseAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantResponse.cs
index da92bca5701..194e4cea352 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/Grant/GrantResponse.cs
@@ -20,7 +20,7 @@ public partial class GrantResponse : global::Microsoft.Graph.Groups.Item.Sites.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Item.Permissions.Item.Grant.GrantResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs
index c90c7e823a0..9df5463150c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Permission> PatchAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/PermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/PermissionsRequestBuilder.cs
index bed6584d4ef..c45cc9e322c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/PermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/Permissions/PermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/SiteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/SiteItemRequestBuilder.cs
index 8c33dc5c767..ec81009c499 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/SiteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/SiteItemRequestBuilder.cs
@@ -219,7 +219,7 @@ public SiteItemRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Site> PatchAsync(global::Microsoft.Graph.Models.Site body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -261,7 +261,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Site body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs
index 822e3102eb8..e0a138cad20 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PostAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs
index 40f10ebbbb7..ac12fc5c094 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
index de932c5027a..4c91673c41a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 907cd729260..808d2ccfe10 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 4aa81b6ceec..c5e75ef24c7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 467834fe005..be6aeb6ff4e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index a5c145bc7ab..32e9e7d8864 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index b4c80db6975..8ef8f2e427c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 279b2b76744..94feedf743f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index 60981b77560..59ba8a1651f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index 1354bf532ba..ee3146b0c9d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index e76af6abbcb..f6b1c2e1930 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
index ed14e80a463..f93896d5279 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
index b227a58e188..8cf0e83e33d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index 29955800e38..d9ac78c3df9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 7b814fceddd..29857ba1780 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 0e9a6819b94..4442544d8f4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index f75d033bbde..c3a736161ae 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index d9fccb9d556..802d31c0353 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index b16d3ce6153..920888d1853 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 1a45aa839ef..ebbdeb7605f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
index 69c8443bb5d..306eb0f0290 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs
index 9ce8e9ddc02..a10ae34500d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs
index 23461bd98b4..c3af8ef121e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 94598b7e3c9..39e368c87d0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 282f1f724e7..d8f21892982 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index ea2a9c77dff..0ae543cea9f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index b275d145666..0fdd87cd929 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 36222c91caf..91858d3a3c9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 962580427b2..6297a27776d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index b3742c6c707..f676711e661 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index 45f003e6327..a8f6dcc2b20 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
index 316f0f6299d..47ec1383a84 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 96b63d84fca..bc08831c407 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 03e8d05a3e8..d4268e61abc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index defa13064dd..d2a44d761ac 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 9a7ff8ba20b..e12deb16cb2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 4bf5dcd7309..0251a88c39e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 9d36dce125c..b3f1bcb54aa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index 3952b645fbc..54b88bd295e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index 2301dc2710e..1349308afbf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
index d63902c6ac8..230370fe3e5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
index e1c453bc22c..7b621067a4d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index 2448846817e..dbbce87af56 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 71d67370db2..5d76f52149c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 8c03310a4fd..44c56e3f78e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index 3a7ffe13a35..5592260cd00 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 4c948ef2e42..6e92913c6b2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 2839b2f3806..367ccf84811 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index e992fed12bc..eb69dcd8efc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
index abe7866e938..e35a592a0c1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
index 1ebb9412c2c..e0e6fa4aea0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index b8f3d50c4ef..cd234c62e31 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs
index ba59f3f13fb..49e45f0e726 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs
index d20dbd9de6d..efa70fcf20f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index b161e318516..5a16ab79534 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index f2f70288500..0a75f18c436 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 818484f6316..309e2188b9f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index 3bfe74995ff..291f8f1366b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 42f1c4d8794..79106742cf7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index b5c49fa5e84..ca776af459f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 9d9bad76c6a..a745eaf9869 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs
index fe1766c4ed6..696c6a8ec4e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs
index 65257901636..9a26e05fe5b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/TermStoreRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/TermStoreRequestBuilder.cs
index 4538ccc3468..cc3ba7e117c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/TermStoreRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStore/TermStoreRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PatchAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs
index 73637248351..ba7c8555480 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PostAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs
index 2d5f00f0ae1..d3991ba8ca7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
index 264dfc68284..55cb2900ca5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 438981235ed..a898b36c236 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 67a4861dd99..959b62c3aed 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index ff730798b38..b9b5792a37d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 2820d51a0da..5931d0f5744 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 965de6a6c98..f83f534d8a6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 85241d12d5a..1dc659c1ac3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index 5bd9b29ad64..d99b75fbf90 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index 3a420419d2d..e48791bc580 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index d13ff8d0d57..29d829d882f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
index d7f7a0d8b17..1968161f5be 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
index 6697e35caaf..3ac2200b03c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index ded177b2a0d..44dc5d8ba68 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 3eb3a4fc20b..cf2e996c9eb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index f10ee37b4c9..636089cb4cb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index 0128d8d9b66..9624225cb3b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index a50e6f99bd8..039758a2468 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 05fcf8cb199..5949c5faf57 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index fa96af92608..4a0da4f92c0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
index 8c50079d064..dc1c0b09066 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs
index 5c0f4ad605f..43f0eb20691 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
index 3cdecda4b24..c780f87e318 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index ce604e7df06..c9c9dedeea5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 84f55fe1df5..748e98aa11d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 5b085a396a1..ea44190cedd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 7367a328207..97060a101b4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 6a5a44cbfd7..b5b21b47859 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index d723f1e2012..1da374f6105 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index 8dda88820b4..d67538a68c0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index a3cfc5fd3bf..60936fd5a4d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
index 3f42e8e87f9..060899ace34 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 93bd28b0cb4..7ea62fe1a50 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index ac901120a69..f3a6bb81159 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 6b0457795cd..4f007d02e53 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 974947eefb8..5d2f16213fb 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 00059c143f2..c94a28a236c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 3a92077abb8..6ae7e3ce1ed 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index e75eabff5eb..de0ae2ea4ab 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index ef07356b558..bc55450ab36 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
index 8c001b55d63..fa300ba0a29 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
index f2cd089653a..2b4be8d7c32 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index 9583dcb77da..486af92ea54 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 7c55eeb84ee..8361cad30ff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index dad697087ab..07e82dda3c0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index 541439b3f18..c3c8a9aab32 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index a1745be7c01..c8ea0b774db 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 592c335e068..cd539635834 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 78a0162c264..9b7c9660b8d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
index 8f6a9d8af9a..4a1bd4ed0d0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
index 15d7774ce87..63bae022872 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index 9e693b55980..38773ff1a9a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
index 83a90174fe8..03fe87c6983 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs
index d7f6f9fa6c8..3fba84d5213 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index 2d4db48263e..30fa9da840d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index ee12d74d5b3..a6000d17897 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 3c76931b41b..5d7dfbbe42d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index 049e789272c..f28483f9dd1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index f3384850a93..9b7ce8b044d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 3fa3b506cce..b16fade6326 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 2b8bb57ccfe..8c241aafaf6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs
index acdd251ad50..def15d60827 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs
index 50446b102c6..cbe8bd0b2be 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs
index 0e3832204d2..63e1f0079e8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PatchAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/TermStoresRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/TermStoresRequestBuilder.cs
index 6b7cb23eaa0..d7953c3d02e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/TermStoresRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Item/TermStores/TermStoresRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermStoresRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PostAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostRequestBody.cs
index b325ae3cdf6..6646d283b11 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostResponse.cs
index b5a632e7bd3..712631b6e78 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveRequestBuilder.cs
index 80fd400daf2..6f6ad228274 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Sites.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Sites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveResponse.cs
index 041991e4c33..9301e335b11 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Sites/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Groups.Item.Sites.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Sites.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Sites.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchivePostRequestBody.cs
index 56eaab70d01..db3b734acb4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchiveRequestBuilder.cs
index 4f35d0b92bf..0b58991c191 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Archive.Arc
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/ChannelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/ChannelsRequestBuilder.cs
index 48ec313c391..4ce809b74b2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/ChannelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/ChannelsRequestBuilder.cs
@@ -105,7 +105,7 @@ public ChannelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Channel> PostAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
index 4697f2256a9..151f38f753d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesResponse.cs
index 826b0741e82..520519b15c0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Groups.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index 0ddb1215db4..c86530484f6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index e55e1108b96..5e942170c13 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
index a144cec4d09..50349531856 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostResponse.cs
index da591bfec7c..12428b3f396 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
index f87d36eee43..e2d8b2f10c3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddResponse.cs
index 6200478a971..4a18bf86d14 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Groups.Item.Team.Chan
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
index 9615b1ff145..061c5aa572d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index 5aa9dcad8fb..4b07935235a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
index 8979708516f..ca5a6445f18 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
index e5ba1445f42..e645f5b14b8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
index d6149c459b7..e2ad8a3d52c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveResponse.cs
index 55d12c31beb..b5ef21bc946 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Groups.Item.Team.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchivePostRequestBody.cs
index 38ad3a890fa..b5f4cd031cc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchiveRequestBuilder.cs
index e3303d64b90..e7bf7e56205 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/ChannelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/ChannelItemRequestBuilder.cs
index aa3183a1b71..6cacb11d5a7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/ChannelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/ChannelItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index db00218a284..7106fe7486f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index 3f878c471d9..b8314451eba 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
index 1d67004c023..aa4d4438c64 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostRequestBody.cs
index 9ebaa92205e..f7a851b34ba 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostResponse.cs
index 72b697a5a19..cfebcf6145c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddRequestBuilder.cs
index 860d51a5383..4f20d32e716 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddResponse.cs
index b6ba44ed61a..766edcf1307 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Groups.Item.Team.Chan
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index 9acca91b6ca..91bb43d8cc9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/MembersRequestBuilder.cs
index 249dbad8e0d..216924ef275 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostRequestBody.cs
index 05b3e7b1db0..adba5edd1ba 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostResponse.cs
index 2a8a98e7cfc..1083be3c086 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
index 7b74edc9aaf..9d5140363e1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveResponse.cs
index 9b022c914e3..86b5f611011 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Groups.Item.Team.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaGetResponse.cs
index 49b79cd3bd6..24130c52c51 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaResponse.cs
index afada4f9620..711d82ae082 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Team.Ch
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index d21a26755f2..6b6c66d5fb5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index d5fd2386c45..123e68027f4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index bb412c568b2..9b8cda756ed 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 07695e09333..3df26ce54f6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index d3492a0fba7..4729a4c618c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index ed2a6852fd0..1ef466fecb3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Team.Ch
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index a18294ae2b6..98391822c62 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index bfd57968751..e57fa2410c9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 925f890e22c..c2884efce4f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 5ddb15899ee..82406931210 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index 6d6d1ca2e4b..aa185d8631c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 9dd8193a03a..cd480d5f13b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 0d6a14880cf..f05f4880a71 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index acef18cb087..cc5a479805f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index 92fd9a421fb..a4a3ec8dfff 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index ae826c64e9e..6283c727c39 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 82334c88999..4d00ab0c046 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 88f24988210..50059efdcf9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index a0600d98e6c..13d3c160196 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.It
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/MessagesRequestBuilder.cs
index 15c7522e33c..482a0449cd6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index e643a853db6..64a2b25f943 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index 058abac56af..301008ff1f9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index 11586f955d7..8ec54261578 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/TabsRequestBuilder.cs
index b796c042ce5..866f7c50367 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Channels/Item/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/ClonePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/ClonePostRequestBody.cs
index 89d51228727..ff1f0bd5f71 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/ClonePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/ClonePostRequestBody.cs
@@ -113,7 +113,7 @@ public ClonePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Clone.ClonePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Clone.ClonePostRequestBody();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("classification", Classification);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/CloneRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/CloneRequestBuilder.cs
index 3f396220bd6..dbb02da083a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/CloneRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Clone/CloneRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Clone.Clone
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/InstalledAppsRequestBuilder.cs
index 95d89e58841..86176f3b02d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
index 4a7a32a62ae..19c335680de 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
index af03a0db8de..0c20e1ac163 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
@@ -53,7 +53,7 @@ public UpgradePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.InstalledApps.Item.Upgrade.UpgradePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.InstalledApps.Item.Upgrade.UpgradePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
index e918d557890..6105da565ac 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.InstalledAp
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostRequestBody.cs
index b4cf32c2252..d256bb3cc7c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostResponse.cs
index fc3e519b496..88d7c867800 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddRequestBuilder.cs
index d93472cca6d..328dc62cf0c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddResponse.cs
index d7106595488..d50e5b8ece5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Groups.Item.Team.Memb
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Item/ConversationMemberItemRequestBuilder.cs
index f1b52068930..2beaa477b3a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/MembersRequestBuilder.cs
index c6da49c5ee6..52d441a6ce8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostRequestBody.cs
index 32924be441e..598b06856c7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostResponse.cs
index 10afb108c99..bdec16e1537 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveRequestBuilder.cs
index d56f7597f70..3cd7cb175a7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveResponse.cs
index 28371b9b7d4..e58a4c2a0c9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Groups.Item.Team.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
index 20f8ad65e0e..dc83afe930d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PatchAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/OperationsRequestBuilder.cs
index b8070677eb5..b8b87e4f797 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PostAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 20d6ab7f1ed..9fae73b7bc0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/PermissionGrantsRequestBuilder.cs
index 4edfb7585f9..3e668dcd6e3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/PhotoRequestBuilder.cs
index 0a3304dd2ec..6055555e79b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/Value/ContentRequestBuilder.cs
index 8764f13494e..b99420c8857 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
index b8a6ebb9ae7..5e6ca31e22f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
index 689928c6072..0fac39f636f 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
index 57d1a52a8e8..be5d30ea890 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddResponse.cs
index efc8fe0edc7..0195ba86509 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Groups.Item.Team.Prim
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
index 025293c4cd4..5353f633126 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index 0e817ddaa1b..a933240f2dc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
index 37c24be7bfa..b2eccffc8c3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
index 475ac68976e..30294328dd0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
index af4876d1610..c5787aa9d80 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
index f16e437c68b..ed342f1067c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Groups.Item.Team.P
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchivePostRequestBody.cs
index a8884ec1d07..a2e05e9cb04 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
index c69ed5340e9..73cd3b7beb0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChan
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index 5766412028d..7dfdeceed67 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index 1d2ceb32b93..4c1928a0857 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
index 8817b3b10a3..374a2e89254 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostRequestBody.cs
index 0b3e3b01196..99b928cb1b6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostResponse.cs
index a940ee24e0d..0a4995d1d6b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddRequestBuilder.cs
index 2a5a6e8ec72..1697ddccd42 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddResponse.cs
index 0b954227bf6..e3ab2cc0751 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Groups.Item.Team.Prim
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
index 6ba2326da67..555a5a2f043 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/MembersRequestBuilder.cs
index 2310e1e0312..f117ee0c48b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
index 0b8162645da..4064ab38ed3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostResponse.cs
index 0f0897b1f7e..df66ff004ce 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
index 2ef161a437c..39410dcc193 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveResponse.cs
index e7567c0753a..27c1f105350 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Groups.Item.Team.P
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
index 2e975a91733..a8bf302fea4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaResponse.cs
index 635c9f76efb..41ec7a4cba0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Team.Pr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
index fdf03c910c9..47c5df93c6c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index a60963d91be..11638bfbfc0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index beaf4f88e35..082b043677a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 72b68dbde26..18cfb3ea8c6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 5d16a4e8423..4f2ddbfe453 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
index f1c1b6d229d..6b724faf8d0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Groups.Item.Team.Pr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index a2b88318904..d71d5b3d6c7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index 9631f899397..723e311acd0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index c6b546f3e9c..57f41ca4a5d 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 3b5e290aea1..79b478c5d63 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index a7b958b785b..3067eca7a75 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index cbfc7da9743..b4582ba23f9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChan
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 889d3cc96b0..7a30c40c0b0 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 5611026fe4a..650f6af8cec 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChan
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
index 29a1423beab..80a75d40ecc 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 9a9a45960ef..eba02129f20 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 42dab430fa6..81fccea103b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChan
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index be5c7e4d58b..c1ca8681330 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 9ace5faa9fc..cf0a59f12f2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChan
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/MessagesRequestBuilder.cs
index 01658ef07a8..9c6663876bf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/PrimaryChannelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/PrimaryChannelRequestBuilder.cs
index e007fd4a73e..9092e0c1251 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/PrimaryChannelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/PrimaryChannelRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index 036aa2ee0f6..33455ec6701 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index 3bdde262fba..5942b678403 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
index b3e24859fc2..4a0697107a8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/TabsRequestBuilder.cs
index f0628fa2867..956212ad9aa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/PrimaryChannel/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/DayNotesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/DayNotesRequestBuilder.cs
index b0f9e4ce3f0..fc0e01246b3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/DayNotesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/DayNotesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DayNotesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.DayNote> PostAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
index 0e6980bc0fb..36945512098 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DayNote> PatchAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
index b046b7b1192..a5cdab2fd04 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PatchAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
index 9bc53dedaa6..a70f7d59b07 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OfferShiftRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PostAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
index 95a05eb1e31..3e2d034b0c4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PatchAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
index 0c491d078b6..d12ceb4c5dd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OpenShiftChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PostAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
index f063ccccd5b..5162285c9d7 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShift> PatchAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
index 983ce9f22ed..01d3c291947 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OpenShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OpenShift> PostAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/ScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/ScheduleRequestBuilder.cs
index 8eaacff8707..42e0015ad10 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/ScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/ScheduleRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Schedule> PutAsync(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
index 4a6bca2987a..f75d4546b78 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PatchAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
index a96041e19ed..b678621784c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SchedulingGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PostAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/SharePostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/SharePostRequestBody.cs
index 56305c512d4..44f6ddeafdf 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/SharePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/SharePostRequestBody.cs
@@ -54,7 +54,7 @@ public SharePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Schedule.Share.SharePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Schedule.Share.SharePostRequestBody();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteBoolValue("notifyTeam", NotifyTeam);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/ShareRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/ShareRequestBuilder.cs
index 4a2330d27ed..f2bfd747d7a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/ShareRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Share/ShareRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Schedule.Sh
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
index 768400f3ce4..c902c52ff5e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Shift> PatchAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/ShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/ShiftsRequestBuilder.cs
index 8915b749178..cfd7aa3d920 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/ShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/Shifts/ShiftsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Shift> PostAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
index 55b1d1353fc..2160ff770a9 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PatchAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
index 45bb5571c31..b5bfbe6cbf2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SwapShiftsChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PostAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
index a35a88f7bb8..941b6b7ac95 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
@@ -75,7 +75,7 @@ public ClockInPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.ClockIn.ClockInPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.ClockIn.ClockInPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteStringValue("onBehalfOfUserId", OnBehalfOfUserId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
index d2f31d2b189..2b56bd0d3dd 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
@@ -52,7 +52,7 @@ public ClockInRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
index d17a4832a01..ef7656704c2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
@@ -59,7 +59,7 @@ public ClockOutPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
index 4503ae5593a..89ada02fb00 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
@@ -51,7 +51,7 @@ public ClockOutRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
index 28ca5d345c3..4a44fea630a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public EndBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
index b278c860d24..3d06a74c469 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public EndBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
index 88f1d3f776d..466f35fb814 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public StartBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
index 8be93196248..6f57a967c16 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public StartBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
index 98e3ac5b0f2..6e82dcaff28 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeCard> PatchAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/TimeCardsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/TimeCardsRequestBuilder.cs
index 0c3b6eaa460..bbff5154363 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/TimeCardsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeCards/TimeCardsRequestBuilder.cs
@@ -99,7 +99,7 @@ public TimeCardsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
index 0b02d9bcd4c..bd363f618ec 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PatchAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
index 26a9abbc735..ba7a86c07db 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimeOffReasonsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PostAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
index 12da9d285f9..e8597380576 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PatchAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
index c5a6437876e..782d4d95906 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimeOffRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PostAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
index 5ecfc9bee32..c4535b7c9a1 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOff> PatchAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/TimesOffRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/TimesOffRequestBuilder.cs
index 89f00168bf6..63ad8f4a185 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/TimesOffRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Schedule/TimesOff/TimesOffRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimesOffRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeOff> PostAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index 2d4299a25ce..c75e7c51836 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Team.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Team.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index 61ae54df8a5..51db8728c05 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.SendActivit
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Team.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Team.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
index fc7070e5bc1..9cd0232e53b 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PatchAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/MembersRequestBuilder.cs
index afc587359d4..9858a7ff8e8 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/Members/MembersRequestBuilder.cs
@@ -93,7 +93,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PostAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/TeamworkTagItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/TeamworkTagItemRequestBuilder.cs
index 5562dc52d84..d3e898cb518 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/TeamworkTagItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/Item/TeamworkTagItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PatchAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/TagsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/TagsRequestBuilder.cs
index 3b6dfc55d55..618ee9c20a4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/TagsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/Tags/TagsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TagsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PostAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Team/TeamRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Team/TeamRequestBuilder.cs
index 7547eaf8808..5b2d741486c 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Team/TeamRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Team/TeamRequestBuilder.cs
@@ -205,7 +205,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Team> PutAsync(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -266,7 +266,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs
index 0c4e4a358aa..a30214ad6f4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/ConversationThreadItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationThread> PatchAsync(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs
index f462b5caf1b..bf9d8d5ded6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -100,7 +100,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 2e2eab588cd..d8d42a4ed7a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index b6595ed398d..3b1720a93e4 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs
index 42ede0dadfe..e57a5c07e4a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 10fca3cfb1d..c605e1bd851 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs
index cc834c92011..94ff0c7bf4a 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs
index 337eddf0a37..dcf971fa862 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Pos
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs
index b1ec5861f67..913d3fc75a5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 31f7c08f4f2..d088f8cd861 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 2abd892139e..c09c4eb6904 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs
index 57eecbf3237..ddd88d29cb5 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs
index e2511602ee2..f52def88624 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs
index 4c096430ed3..5c83061a8e2 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs
index cf3fb08591b..d7e6d989369 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Pos
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs
index b766f6c73bb..00e7f984588 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Post>("Post", Post);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs
index 194d0258ff1..dc89f57016e 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/InReplyTo/Reply/ReplyRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Pos
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.InReplyTo.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs
index 7864c9dd2e2..e27125345ab 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Post>("Post", Post);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs
index e4c95277a18..9f3f5806701 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Posts/Item/Reply/ReplyRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Pos
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Threads.Item.Posts.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyPostRequestBody.cs
index 12c4f82daec..ed5f40f16aa 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyPostRequestBody.cs
@@ -53,7 +53,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.Threads.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.Threads.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Post>("Post", Post);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyRequestBuilder.cs
index ede64072ada..78fa60d1f29 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/Item/Reply/ReplyRequestBuilder.cs
@@ -34,8 +34,8 @@ public ReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         {
         }
         /// <summary>
-        /// Reply to a post and add a new post to the specified thread in a group conversation.  You can specify both the parent conversation and thread in the request, or, you can specify just the parent thread without the parent conversation.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/post-reply?view=graph-rest-1.0" />
+        /// Create an open extension (openTypeExtension object) and add custom properties in a new or existing instance of a resource. You can create an open extension in a resource instance and store custom data to it all in the same operation, except for specific resources. The table in the Permissions section lists the resources that support open extensions.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/opentypeextension-post-opentypeextension?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="body">The request body</param>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Rep
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -59,7 +59,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.Threads.Item.Rep
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Reply to a post and add a new post to the specified thread in a group conversation.  You can specify both the parent conversation and thread in the request, or, you can specify just the parent thread without the parent conversation.
+        /// Create an open extension (openTypeExtension object) and add custom properties in a new or existing instance of a resource. You can create an open extension in a resource instance and store custom data to it all in the same operation, except for specific resources. The table in the Permissions section lists the resources that support open extensions.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.Threads.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/Threads/ThreadsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/Threads/ThreadsRequestBuilder.cs
index 2a97091c03b..68c7ca69aa6 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/Threads/ThreadsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/Threads/ThreadsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ThreadsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationThread> PostAsync(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationThread body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index dfb79ed1b81..428a63e1196 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -74,7 +74,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.Item.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.Item.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("mailNickname", MailNickname);
             writer.WriteGuidValue("onBehalfOfUserId", OnBehalfOfUserId);
diff --git a/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index bd332426f0a..860bb3183b3 100644
--- a/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/Item/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.Item.ValidateProperti
         public async Task PostAsync(global::Microsoft.Graph.Groups.Item.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.Item.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index b878edafadf..7247ddf353c 100644
--- a/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Groups.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Groups.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index 30f1e8d72ca..833a9558807 100644
--- a/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Groups/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Groups.ValidateProperties.Va
         public async Task PostAsync(global::Microsoft.Graph.Groups.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Group
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Groups.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/GroupsWithUniqueName/GroupsWithUniqueNameRequestBuilder.cs b/src/Microsoft.Graph/Generated/GroupsWithUniqueName/GroupsWithUniqueNameRequestBuilder.cs
index 8391de09578..27bf45418f9 100644
--- a/src/Microsoft.Graph/Generated/GroupsWithUniqueName/GroupsWithUniqueNameRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/GroupsWithUniqueName/GroupsWithUniqueNameRequestBuilder.cs
@@ -101,7 +101,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Group> PatchAsync(global::Microsoft.Graph.Models.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/ApiConnectorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/ApiConnectorsRequestBuilder.cs
index 6a6124779dd..0c2e541eade 100644
--- a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/ApiConnectorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/ApiConnectorsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ApiConnectorsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.IdentityApiConnector> PostAsync(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/IdentityApiConnectorItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/IdentityApiConnectorItemRequestBuilder.cs
index 7e00de6964f..ecc2125c192 100644
--- a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/IdentityApiConnectorItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/IdentityApiConnectorItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityApiConnector> PatchAsync(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
index 8a70c1aa88b..62bd4c67221 100644
--- a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
@@ -68,7 +68,7 @@ public UploadClientCertificatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Identity.ApiConnectors.Item.UploadClientCertificate.UploadClientCertificatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.ApiConnectors.Item.UploadClientCertificate.UploadClientCertificatePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("password", Password);
             writer.WriteStringValue("pkcs12Value", Pkcs12Value);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
index 0115b046274..5c2a4a1bd7c 100644
--- a/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ApiConnectors/Item/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
@@ -52,7 +52,7 @@ public UploadClientCertificateRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.IdentityApiConnector> PostAsync(global::Microsoft.Graph.Identity.ApiConnectors.Item.UploadClientCertificate.UploadClientCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Identity.ApiConnectors.Item.UploadClientCertificate.UploadClientCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/AuthenticationEventListenersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/AuthenticationEventListenersRequestBuilder.cs
index dd334d50396..5f099d1ef5b 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/AuthenticationEventListenersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/AuthenticationEventListenersRequestBuilder.cs
@@ -95,7 +95,7 @@ public AuthenticationEventListenersRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.AuthenticationEventListener> PostAsync(global::Microsoft.Graph.Models.AuthenticationEventListener body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationEventListener body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/Item/AuthenticationEventListenerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/Item/AuthenticationEventListenerItemRequestBuilder.cs
index a0364eacc7c..a07cd7c7fe9 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/Item/AuthenticationEventListenerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventListeners/Item/AuthenticationEventListenerItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationEventListener> PatchAsync(global::Microsoft.Graph.Models.AuthenticationEventListener body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationEventListener body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/AuthenticationEventsFlowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/AuthenticationEventsFlowsRequestBuilder.cs
index 424c4f2ac23..a30d613bff6 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/AuthenticationEventsFlowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/AuthenticationEventsFlowsRequestBuilder.cs
@@ -101,7 +101,7 @@ public AuthenticationEventsFlowsRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.AuthenticationEventsFlow> PostAsync(global::Microsoft.Graph.Models.AuthenticationEventsFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationEventsFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/AuthenticationEventsFlowItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/AuthenticationEventsFlowItemRequestBuilder.cs
index a27b6c98b8f..64eca869544 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/AuthenticationEventsFlowItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/AuthenticationEventsFlowItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationEventsFlow> PatchAsync(global::Microsoft.Graph.Models.AuthenticationEventsFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationEventsFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs
index b58e0d74b40..34be8807895 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public IncludeApplicationsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.AuthenticationConditionApplication> PostAsync(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs
index 4a91ce96011..8d5c91712c5 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationConditionApplication> PatchAsync(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs
index 690140cbabb..7f256b25473 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/IncludeApplicationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public IncludeApplicationsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.AuthenticationConditionApplication> PostAsync(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs
index d5fe3521569..a2b8e553ff6 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/Conditions/Applications/IncludeApplications/Item/AuthenticationConditionApplicationAppItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationConditionApplication> PatchAsync(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationConditionApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAttributeCollection/GraphOnAttributeCollectionExternalUsersSelfServiceSignUp/Attributes/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAttributeCollection/GraphOnAttributeCollectionExternalUsersSelfServiceSignUp/Attributes/Ref/RefRequestBuilder.cs
index 7cc364efe73..e77b4753ff2 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAttributeCollection/GraphOnAttributeCollectionExternalUsersSelfServiceSignUp/Attributes/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAttributeCollection/GraphOnAttributeCollectionExternalUsersSelfServiceSignUp/Attributes/Ref/RefRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/identity/authenticationEventsFlows/{authenticationEventsFlow%2Did}/graph.externalUsersSelfServiceSignUpEventsFlow/onAttributeCollection/graph.onAttributeCollectionExternalUsersSelfServiceSignUp/attributes/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAuthenticationMethodLoadStart/GraphOnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp/IdentityProviders/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAuthenticationMethodLoadStart/GraphOnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp/IdentityProviders/Ref/RefRequestBuilder.cs
index aa0a98fc2b8..846b587e685 100644
--- a/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAuthenticationMethodLoadStart/GraphOnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp/IdentityProviders/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/AuthenticationEventsFlows/Item/GraphExternalUsersSelfServiceSignUpEventsFlow/OnAuthenticationMethodLoadStart/GraphOnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp/IdentityProviders/Ref/RefRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/identity/authenticationEventsFlows/{authenticationEventsFlow%2Did}/graph.externalUsersSelfServiceSignUpEventsFlow/onAuthenticationMethodLoadStart/graph.onAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp/identityProviders/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/B2xUserFlowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/B2xUserFlowsRequestBuilder.cs
index 1e481b3f123..98c60f8bf3a 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/B2xUserFlowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/B2xUserFlowsRequestBuilder.cs
@@ -95,7 +95,7 @@ public B2xUserFlowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.B2xIdentityUserFlow> PostAsync(global::Microsoft.Graph.Models.B2xIdentityUserFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.B2xIdentityUserFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/PostAttributeCollectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/PostAttributeCollectionRequestBuilder.cs
index f2621715c5a..5c6b34b10dc 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/PostAttributeCollectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/PostAttributeCollectionRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityApiConnector> PatchAsync(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/Ref/RefRequestBuilder.cs
index 8f42597ad4d..228856103cc 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
index 6bedf66de3a..8c1f53f2008 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
@@ -68,7 +68,7 @@ public UploadClientCertificatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostAttributeCollection.UploadClientCertificate.UploadClientCertificatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostAttributeCollection.UploadClientCertificate.UploadClientCertificatePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("password", Password);
             writer.WriteStringValue("pkcs12Value", Pkcs12Value);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
index 46e6d330ff0..39e0dec4bcb 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostAttributeCollection/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
@@ -52,7 +52,7 @@ public UploadClientCertificateRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.IdentityApiConnector> PostAsync(global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostAttributeCollection.UploadClientCertificate.UploadClientCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostAttributeCollection.UploadClientCertificate.UploadClientCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/PostFederationSignupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/PostFederationSignupRequestBuilder.cs
index 7dec5c520bb..1343f568f22 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/PostFederationSignupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/PostFederationSignupRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityApiConnector> PatchAsync(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityApiConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/Ref/RefRequestBuilder.cs
index 838d4e6c960..3a19c843b6e 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
index f0bc29dfab6..1fa1c4e57ae 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificatePostRequestBody.cs
@@ -68,7 +68,7 @@ public UploadClientCertificatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostFederationSignup.UploadClientCertificate.UploadClientCertificatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostFederationSignup.UploadClientCertificate.UploadClientCertificatePostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("password", Password);
             writer.WriteStringValue("pkcs12Value", Pkcs12Value);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
index 135754cae9c..69884e4fd3b 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/ApiConnectorConfiguration/PostFederationSignup/UploadClientCertificate/UploadClientCertificateRequestBuilder.cs
@@ -52,7 +52,7 @@ public UploadClientCertificateRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.IdentityApiConnector> PostAsync(global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostFederationSignup.UploadClientCertificate.UploadClientCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Identity.B2xUserFlows.Item.ApiConnectorConfiguration.PostFederationSignup.UploadClientCertificate.UploadClientCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/B2xIdentityUserFlowItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/B2xIdentityUserFlowItemRequestBuilder.cs
index 7f6bcb2ecb3..6357681f0d9 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/B2xIdentityUserFlowItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/B2xIdentityUserFlowItemRequestBuilder.cs
@@ -128,7 +128,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.B2xIdentityUserFlow> PatchAsync(global::Microsoft.Graph.Models.B2xIdentityUserFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -189,7 +189,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.B2xIdentityUserFlow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/DefaultPagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/DefaultPagesRequestBuilder.cs
index 4d537887fa2..f482e901591 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/DefaultPagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/DefaultPagesRequestBuilder.cs
@@ -94,7 +94,7 @@ public DefaultPagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.UserFlowLanguagePage> PostAsync(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/UserFlowLanguagePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/UserFlowLanguagePageItemRequestBuilder.cs
index 3c211e6bc97..451813e85a9 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/UserFlowLanguagePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/UserFlowLanguagePageItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserFlowLanguagePage> PatchAsync(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/Value/ContentRequestBuilder.cs
index 234f5f178b8..c3461e0f43c 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/DefaultPages/Item/Value/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/UserFlowLanguagePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/UserFlowLanguagePageItemRequestBuilder.cs
index 10acb271628..02d6bf199a6 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/UserFlowLanguagePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/UserFlowLanguagePageItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserFlowLanguagePage> PatchAsync(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/Value/ContentRequestBuilder.cs
index 8518a19b020..b2f22cc0a01 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/Item/Value/ContentRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/OverridesPagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/OverridesPagesRequestBuilder.cs
index 9704471803b..e9e35bbcb70 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/OverridesPagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/OverridesPages/OverridesPagesRequestBuilder.cs
@@ -94,7 +94,7 @@ public OverridesPagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.UserFlowLanguagePage> PostAsync(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserFlowLanguagePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/UserFlowLanguageConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/UserFlowLanguageConfigurationItemRequestBuilder.cs
index 079b68de975..7ea82a1be06 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/UserFlowLanguageConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/Item/UserFlowLanguageConfigurationItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserFlowLanguageConfiguration> PatchAsync(global::Microsoft.Graph.Models.UserFlowLanguageConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserFlowLanguageConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/LanguagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/LanguagesRequestBuilder.cs
index 4abc7f9c8e8..85bea7d255e 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/LanguagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/Languages/LanguagesRequestBuilder.cs
@@ -94,7 +94,7 @@ public LanguagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.UserFlowLanguageConfiguration> PostAsync(global::Microsoft.Graph.Models.UserFlowLanguageConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserFlowLanguageConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/Item/IdentityUserFlowAttributeAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/Item/IdentityUserFlowAttributeAssignmentItemRequestBuilder.cs
index 67851c80c53..d27c20189f4 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/Item/IdentityUserFlowAttributeAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/Item/IdentityUserFlowAttributeAssignmentItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment> PatchAsync(global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderPostRequestBody.cs
index 53afb209eb2..8be73ab2b70 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SetOrderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Identity.B2xUserFlows.Item.UserAttributeAssignments.SetOrder.SetOrderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.B2xUserFlows.Item.UserAttributeAssignments.SetOrder.SetOrderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AssignmentOrder>("newAssignmentOrder", NewAssignmentOrder);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderRequestBuilder.cs
index 6d451f6f9b5..542055182ae 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/SetOrder/SetOrderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Identity.B2xUserFlows.Item.U
         public async Task PostAsync(global::Microsoft.Graph.Identity.B2xUserFlows.Item.UserAttributeAssignments.SetOrder.SetOrderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Identity.B2xUserFlows.Item.UserAttributeAssignments.SetOrder.SetOrderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/UserAttributeAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/UserAttributeAssignmentsRequestBuilder.cs
index 2492f68acfc..80e7fcb464d 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/UserAttributeAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserAttributeAssignments/UserAttributeAssignmentsRequestBuilder.cs
@@ -107,7 +107,7 @@ public UserAttributeAssignmentsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment> PostAsync(global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserFlowIdentityProviders/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserFlowIdentityProviders/Ref/RefRequestBuilder.cs
index dbab7d12caf..2f1b7d2ebec 100644
--- a/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserFlowIdentityProviders/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/B2xUserFlows/Item/UserFlowIdentityProviders/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/identity/b2xUserFlows/{b2xIdentityUserFlow%2Did}/userFlowIdentityProviders/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/AuthenticationContextClassReferencesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/AuthenticationContextClassReferencesRequestBuilder.cs
index 2e0fd1080d8..41de5919a9e 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/AuthenticationContextClassReferencesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/AuthenticationContextClassReferencesRequestBuilder.cs
@@ -94,7 +94,7 @@ public AuthenticationContextClassReferencesRequestBuilder(string rawUrl, IReques
         public async Task<global::Microsoft.Graph.Models.AuthenticationContextClassReference> PostAsync(global::Microsoft.Graph.Models.AuthenticationContextClassReference body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationContextClassReference body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/Item/AuthenticationContextClassReferenceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/Item/AuthenticationContextClassReferenceItemRequestBuilder.cs
index 684bdeb1a2d..1d5524a90ff 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/Item/AuthenticationContextClassReferenceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationContextClassReferences/Item/AuthenticationContextClassReferenceItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationContextClassReference> PatchAsync(global::Microsoft.Graph.Models.AuthenticationContextClassReference body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationContextClassReference body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/AuthenticationMethodModesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/AuthenticationMethodModesRequestBuilder.cs
index baa384a56e7..0b69c3e6dc2 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/AuthenticationMethodModesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/AuthenticationMethodModesRequestBuilder.cs
@@ -94,7 +94,7 @@ public AuthenticationMethodModesRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodModeDetail> PostAsync(global::Microsoft.Graph.Models.AuthenticationMethodModeDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodModeDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/Item/AuthenticationMethodModeDetailItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/Item/AuthenticationMethodModeDetailItemRequestBuilder.cs
index 6b9a1c82eed..e85a42f5601 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/Item/AuthenticationMethodModeDetailItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationMethodModes/Item/AuthenticationMethodModeDetailItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodModeDetail> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethodModeDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodModeDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationStrengthRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationStrengthRequestBuilder.cs
index 07b83af4f8b..71efb55a13c 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationStrengthRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/AuthenticationStrengthRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationStrengthRoot> PatchAsync(global::Microsoft.Graph.Models.AuthenticationStrengthRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationStrengthRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs
index 0997d74300b..308742c1172 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationStrengthPolicy> PatchAsync(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs
index 7eda28ac286..df42e897226 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CombinationConfigurationsRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration> PostAsync(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs
index 9928a1640d8..3b4e88e9939 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration> PatchAsync(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs
index 2fe9c94eeff..1f318d45e9a 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs
@@ -53,7 +53,7 @@ public UpdateAllowedCombinationsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Identity.ConditionalAccess.AuthenticationStrength.Policies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.ConditionalAccess.AuthenticationStrength.Policies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.AuthenticationMethodModes>("allowedCombinations", AllowedCombinations);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs
index 6cb20601455..1bc80c7ebad 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs
@@ -52,7 +52,7 @@ public UpdateAllowedCombinationsRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.UpdateAllowedCombinationsResult> PostAsync(global::Microsoft.Graph.Identity.ConditionalAccess.AuthenticationStrength.Policies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Identity.ConditionalAccess.AuthenticationStrength.Policies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/PoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/PoliciesRequestBuilder.cs
index ae6e4801b3b..4b2d3282cbf 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/PoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/AuthenticationStrength/Policies/PoliciesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.AuthenticationStrengthPolicy> PostAsync(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostRequestBody.cs
index 9eb3ed931d3..85b8ef7fad7 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostRequestBody.cs
@@ -91,7 +91,7 @@ public EvaluatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("appliedPoliciesOnly", AppliedPoliciesOnly);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SignInConditions>("signInConditions", SignInConditions);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SignInContext>("signInContext", SignInContext);
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostResponse.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostResponse.cs
index 6283985bb86..89aab1d077b 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluatePostResponse.cs
@@ -36,7 +36,7 @@ public partial class EvaluatePostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WhatIfAnalysisResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateRequestBuilder.cs
index 86a7ae7d118..4c75bb26649 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateRequestBuilder.cs
@@ -51,7 +51,7 @@ public EvaluateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostResponse> PostAsEvaluatePostResponseAsync(global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public EvaluateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluateResponse> PostAsync(global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateResponse.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateResponse.cs
index 0e64fe6608b..1e6b2fbeeef 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateResponse.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Evaluate/EvaluateResponse.cs
@@ -20,7 +20,7 @@ public partial class EvaluateResponse : global::Microsoft.Graph.Identity.Conditi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluateResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.ConditionalAccess.Evaluate.EvaluateResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/Item/NamedLocationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/Item/NamedLocationItemRequestBuilder.cs
index fc5a4ec2579..7d86ef8cb75 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/Item/NamedLocationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/Item/NamedLocationItemRequestBuilder.cs
@@ -58,8 +58,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Retrieve the properties and relationships of a namedLocation object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/namedlocation-get?view=graph-rest-1.0" />
+        /// Retrieve the properties and relationships of a countryNamedLocation object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/countrynamedlocation-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.NamedLocation"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -82,8 +82,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.NamedLocation>(requestInfo, global::Microsoft.Graph.Models.NamedLocation.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of an ipNamedLocation object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/ipnamedlocation-update?view=graph-rest-1.0" />
+        /// Update the properties of a countryNamedLocation object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/countrynamedlocation-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.NamedLocation"/></returns>
         /// <param name="body">The request body</param>
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.NamedLocation> PatchAsync(global::Microsoft.Graph.Models.NamedLocation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -127,7 +127,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Retrieve the properties and relationships of a namedLocation object.
+        /// Retrieve the properties and relationships of a countryNamedLocation object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -146,7 +146,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of an ipNamedLocation object.
+        /// Update the properties of a countryNamedLocation object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.NamedLocation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -185,7 +185,7 @@ public partial class NamedLocationItemRequestBuilderDeleteRequestConfiguration :
         {
         }
         /// <summary>
-        /// Retrieve the properties and relationships of a namedLocation object.
+        /// Retrieve the properties and relationships of a countryNamedLocation object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class NamedLocationItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/NamedLocationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/NamedLocationsRequestBuilder.cs
index 3d98d1e6b91..844948c7492 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/NamedLocationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/NamedLocations/NamedLocationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public NamedLocationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.NamedLocation> PostAsync(global::Microsoft.Graph.Models.NamedLocation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.NamedLocation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/Item/ConditionalAccessPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/Item/ConditionalAccessPolicyItemRequestBuilder.cs
index 27a90e24579..f618c196222 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/Item/ConditionalAccessPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/Item/ConditionalAccessPolicyItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConditionalAccessPolicy> PatchAsync(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/PoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/PoliciesRequestBuilder.cs
index 00f9f4c85cf..bc56909b447 100644
--- a/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/PoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/ConditionalAccess/Policies/PoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public PoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ConditionalAccessPolicy> PostAsync(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/CustomAuthenticationExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/CustomAuthenticationExtensionsRequestBuilder.cs
index 135747aa7d2..1da27ef683c 100644
--- a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/CustomAuthenticationExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/CustomAuthenticationExtensionsRequestBuilder.cs
@@ -101,7 +101,7 @@ public CustomAuthenticationExtensionsRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<global::Microsoft.Graph.Models.CustomAuthenticationExtension> PostAsync(global::Microsoft.Graph.Models.CustomAuthenticationExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CustomAuthenticationExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/Item/CustomAuthenticationExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/Item/CustomAuthenticationExtensionItemRequestBuilder.cs
index 79d491ff65b..39f0a1d9d30 100644
--- a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/Item/CustomAuthenticationExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/Item/CustomAuthenticationExtensionItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CustomAuthenticationExtension> PatchAsync(global::Microsoft.Graph.Models.CustomAuthenticationExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CustomAuthenticationExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationPostRequestBody.cs
index 4ca3109f505..5c3eb6e1c77 100644
--- a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationPostRequestBody.cs
@@ -69,7 +69,7 @@ public ValidateAuthenticationConfigurationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Identity.CustomAuthenticationExtensions.ValidateAuthenticationConfiguration.ValidateAuthenticationConfigurationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.CustomAuthenticationExtensions.ValidateAuthenticationConfiguration.ValidateAuthenticationConfigurationPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionAuthenticationConfiguration>("authenticationConfiguration", AuthenticationConfiguration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionEndpointConfiguration>("endpointConfiguration", EndpointConfiguration);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationRequestBuilder.cs
index 759223c3b28..5fb493c8ff3 100644
--- a/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/CustomAuthenticationExtensions/ValidateAuthenticationConfiguration/ValidateAuthenticationConfigurationRequestBuilder.cs
@@ -51,7 +51,7 @@ public ValidateAuthenticationConfigurationRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.AuthenticationConfigurationValidation> PostAsync(global::Microsoft.Graph.Identity.CustomAuthenticationExtensions.ValidateAuthenticationConfiguration.ValidateAuthenticationConfigurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Identity.CustomAuthenticationExtensions.ValidateAuthenticationConfiguration.ValidateAuthenticationConfigurationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
index ccf759deade..3b53c3e8ca4 100644
--- a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Identity.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs
index 88549ba8539..9ae4e8e957e 100644
--- a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class AvailableProviderTypesResponse : global::Microsoft.Graph.Id
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Identity.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Identity.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/IdentityProvidersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/IdentityProvidersRequestBuilder.cs
index 27c7a42fcb7..cfe1ec0f433 100644
--- a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/IdentityProvidersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/IdentityProvidersRequestBuilder.cs
@@ -101,7 +101,7 @@ public IdentityProvidersRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.IdentityProviderBase> PostAsync(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/Item/IdentityProviderBaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/Item/IdentityProviderBaseItemRequestBuilder.cs
index b7d7339cc6c..50b42bf1c24 100644
--- a/src/Microsoft.Graph/Generated/Identity/IdentityProviders/Item/IdentityProviderBaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/IdentityProviders/Item/IdentityProviderBaseItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityProviderBase> PatchAsync(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityProviderBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/IdentityRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/IdentityRequestBuilder.cs
index 51af0e672b5..4fe133f73ea 100644
--- a/src/Microsoft.Graph/Generated/Identity/IdentityRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/IdentityRequestBuilder.cs
@@ -122,7 +122,7 @@ public IdentityRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.IdentityContainer> PatchAsync(global::Microsoft.Graph.Models.IdentityContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/Item/IdentityUserFlowAttributeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/Item/IdentityUserFlowAttributeItemRequestBuilder.cs
index 18b9f48d545..2e8db9a0aca 100644
--- a/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/Item/IdentityUserFlowAttributeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/Item/IdentityUserFlowAttributeItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityUserFlowAttribute> PatchAsync(global::Microsoft.Graph.Models.IdentityUserFlowAttribute body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityUserFlowAttribute body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/UserFlowAttributesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/UserFlowAttributesRequestBuilder.cs
index 2718ace769a..f6458a875f8 100644
--- a/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/UserFlowAttributesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Identity/UserFlowAttributes/UserFlowAttributesRequestBuilder.cs
@@ -95,7 +95,7 @@ public UserFlowAttributesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.IdentityUserFlowAttribute> PostAsync(global::Microsoft.Graph.Models.IdentityUserFlowAttribute body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityUserFlowAttribute body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/AccessReviewsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/AccessReviewsRequestBuilder.cs
index 51c96ec1313..c7c1dbbb716 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/AccessReviewsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/AccessReviewsRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewSet> PatchAsync(global::Microsoft.Graph.Models.AccessReviewSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/DefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/DefinitionsRequestBuilder.cs
index 6609a2a84a9..175d821d782 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/DefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/DefinitionsRequestBuilder.cs
@@ -106,7 +106,7 @@ public DefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AccessReviewScheduleDefinition> PostAsync(global::Microsoft.Graph.Models.AccessReviewScheduleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewScheduleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 9bc4bdc55d8..f9c400c7a75 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewScheduleDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 09a8edb2fb4..c978e5ba49e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/AccessReviewScheduleDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/AccessReviewScheduleDefinitionItemRequestBuilder.cs
index 3a83348e94d..022d51cce52 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/AccessReviewScheduleDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/AccessReviewScheduleDefinitionItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewScheduleDefinition> PutAsync(global::Microsoft.Graph.Models.AccessReviewScheduleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.AccessReviewScheduleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 43e5db750a7..bb98a122510 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index ba321afa996..749988a33ce 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/InstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/InstancesRequestBuilder.cs
index cd26e8babb1..2bcdcabd70e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/InstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/InstancesRequestBuilder.cs
@@ -105,7 +105,7 @@ public InstancesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessReviewInstance> PostAsync(global::Microsoft.Graph.Models.AccessReviewInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/AccessReviewInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/AccessReviewInstanceItemRequestBuilder.cs
index 9172b665ba6..5e8c3408004 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/AccessReviewInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/AccessReviewInstanceItemRequestBuilder.cs
@@ -152,7 +152,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewInstance> PatchAsync(global::Microsoft.Graph.Models.AccessReviewInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -213,7 +213,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsPostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsPostRequestBody.cs
index 380049097c5..d50d0214e3a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsPostRequestBody.cs
@@ -100,7 +100,7 @@ public BatchRecordDecisionsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.BatchRecordDecisions.BatchRecordDecisionsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.BatchRecordDecisions.BatchRecordDecisionsPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("decision", Decision);
             writer.WriteStringValue("justification", Justification);
             writer.WriteStringValue("principalId", PrincipalId);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsRequestBuilder.cs
index aa3a570290b..85cea315c81 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/BatchRecordDecisions/BatchRecordDecisionsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.AccessRev
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.BatchRecordDecisions.BatchRecordDecisionsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.BatchRecordDecisions.BatchRecordDecisionsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/ContactedReviewersRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/ContactedReviewersRequestBuilder.cs
index 2a2cd13ae37..dd446603faf 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/ContactedReviewersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/ContactedReviewersRequestBuilder.cs
@@ -94,7 +94,7 @@ public ContactedReviewersRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AccessReviewReviewer> PostAsync(global::Microsoft.Graph.Models.AccessReviewReviewer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewReviewer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/Item/AccessReviewReviewerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/Item/AccessReviewReviewerItemRequestBuilder.cs
index 7378e58c58f..49da2acc9a5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/Item/AccessReviewReviewerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/ContactedReviewers/Item/AccessReviewReviewerItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewReviewer> PatchAsync(global::Microsoft.Graph.Models.AccessReviewReviewer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewReviewer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/DecisionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/DecisionsRequestBuilder.cs
index 3cf98edeb94..d490bf21815 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/DecisionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/DecisionsRequestBuilder.cs
@@ -105,7 +105,7 @@ public DecisionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem> PostAsync(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 159ad98f9e4..f932aa19683 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 0fb1b533a22..e2338b6af48 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs
index 9b723566e0d..9176e6b3b9f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem> PatchAsync(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs
index f08fe86b4f2..42df6af7e3c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InsightsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.GovernanceInsight> PostAsync(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs
index 6fe75a6947d..4c89ac6fa14 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GovernanceInsight> PatchAsync(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 055a05f3ea3..d15d43cd93b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewStage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index c11e9f2eff5..a9d8883184b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/AccessReviewStageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/AccessReviewStageItemRequestBuilder.cs
index 35697988af6..9b49521979e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/AccessReviewStageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/AccessReviewStageItemRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewStage> PatchAsync(global::Microsoft.Graph.Models.AccessReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/DecisionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/DecisionsRequestBuilder.cs
index 9f417da0c75..19794435c42 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/DecisionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/DecisionsRequestBuilder.cs
@@ -105,7 +105,7 @@ public DecisionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem> PostAsync(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 554061d06cd..292b4fab040 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index a3acc5968e3..f9631f1c314 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AccessReviews.Definitions.Item.Instances.Item.Stages.Item.Decisions.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs
index a3a78f69c10..e83d45b8c08 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/AccessReviewInstanceDecisionItemItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem> PatchAsync(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs
index d944ca1e2d3..267b16e09cc 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/InsightsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InsightsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.GovernanceInsight> PostAsync(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs
index 03f9d1fd52c..1b56992237f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/Item/Decisions/Item/Insights/Item/GovernanceInsightItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GovernanceInsight> PatchAsync(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GovernanceInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/StagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/StagesRequestBuilder.cs
index 9691a07b2d5..5e4ef55c8f9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/StagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/Definitions/Item/Instances/Item/Stages/StagesRequestBuilder.cs
@@ -105,7 +105,7 @@ public StagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessReviewStage> PostAsync(global::Microsoft.Graph.Models.AccessReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/HistoryDefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/HistoryDefinitionsRequestBuilder.cs
index 42b23fe7cb5..1dca78b4e56 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/HistoryDefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/HistoryDefinitionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public HistoryDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AccessReviewHistoryDefinition> PostAsync(global::Microsoft.Graph.Models.AccessReviewHistoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewHistoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/AccessReviewHistoryDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/AccessReviewHistoryDefinitionItemRequestBuilder.cs
index 50e1d42aa06..e5e2d4a76da 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/AccessReviewHistoryDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/AccessReviewHistoryDefinitionItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewHistoryDefinition> PatchAsync(global::Microsoft.Graph.Models.AccessReviewHistoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewHistoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/InstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/InstancesRequestBuilder.cs
index d5fc55e75ff..4e1326d563e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/InstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/InstancesRequestBuilder.cs
@@ -94,7 +94,7 @@ public InstancesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessReviewHistoryInstance> PostAsync(global::Microsoft.Graph.Models.AccessReviewHistoryInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessReviewHistoryInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/Item/AccessReviewHistoryInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/Item/AccessReviewHistoryInstanceItemRequestBuilder.cs
index ab681fda40a..5cb971d253c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/Item/AccessReviewHistoryInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AccessReviews/HistoryDefinitions/Item/Instances/Item/AccessReviewHistoryInstanceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessReviewHistoryInstance> PatchAsync(global::Microsoft.Graph.Models.AccessReviewHistoryInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessReviewHistoryInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequestBuilder.cs
index 861bf7036af..42c5d53c41b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppConsentApprovalRoute> PatchAsync(global::Microsoft.Graph.Models.AppConsentApprovalRoute body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppConsentApprovalRoute body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/AppConsentRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/AppConsentRequestsRequestBuilder.cs
index b208d2d1c95..34fbba1c9f2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/AppConsentRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/AppConsentRequestsRequestBuilder.cs
@@ -105,7 +105,7 @@ public AppConsentRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AppConsentRequest> PostAsync(global::Microsoft.Graph.Models.AppConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 51825c80581..ebc1e88cd02 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppConsentRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 06564fc9d44..bcdbde3df25 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/AppConsentRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/AppConsentRequestItemRequestBuilder.cs
index 8c25b87dba4..a652dc15236 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/AppConsentRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/AppConsentRequestItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppConsentRequest> PatchAsync(global::Microsoft.Graph.Models.AppConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 8f6ccda3b81..13f4696cf5a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.Item.UserConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.Item.UserConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserConsentRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 50f38e298c5..a957a548172 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.Item.UserConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.AppConsent.AppConsentRequests.Item.UserConsentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/ApprovalRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/ApprovalRequestBuilder.cs
index e993cb8e508..f73ae919fdf 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/ApprovalRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/ApprovalRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Approval> PatchAsync(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/Item/ApprovalStageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/Item/ApprovalStageItemRequestBuilder.cs
index f0e9bcab440..13ee997c8e2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/Item/ApprovalStageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/Item/ApprovalStageItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ApprovalStage> PatchAsync(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/StagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/StagesRequestBuilder.cs
index 5ffce257a04..255296111d4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/StagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/Approval/Stages/StagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public StagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ApprovalStage> PostAsync(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/UserConsentRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/UserConsentRequestItemRequestBuilder.cs
index bab3a21dc5d..99693ffbbaa 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/UserConsentRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/Item/UserConsentRequestItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserConsentRequest> PatchAsync(global::Microsoft.Graph.Models.UserConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/UserConsentRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/UserConsentRequestsRequestBuilder.cs
index db6e9abe4d4..86a14ed92ed 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/UserConsentRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/AppConsent/AppConsentRequests/Item/UserConsentRequests/UserConsentRequestsRequestBuilder.cs
@@ -105,7 +105,7 @@ public UserConsentRequestsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UserConsentRequest> PostAsync(global::Microsoft.Graph.Models.UserConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserConsentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/AccessPackageAssignmentApprovalsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/AccessPackageAssignmentApprovalsRequestBuilder.cs
index 670f7ebfba7..b816fa1db6c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/AccessPackageAssignmentApprovalsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/AccessPackageAssignmentApprovalsRequestBuilder.cs
@@ -104,7 +104,7 @@ public AccessPackageAssignmentApprovalsRequestBuilder(string rawUrl, IRequestAda
         public async Task<global::Microsoft.Graph.Models.Approval> PostAsync(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 6076673f68d..fca243c5912 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackageAssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackageAssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Approval>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 1fa778407c7..aa627aac9b9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackageAssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackageAssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/ApprovalItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/ApprovalItemRequestBuilder.cs
index 042e12f9ea5..2884e125123 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/ApprovalItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/ApprovalItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Approval> PatchAsync(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs
index d8b41a9d2c4..9487ccf3523 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ApprovalStage> PatchAsync(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/StagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/StagesRequestBuilder.cs
index bf55437d5c8..c50d74cf229 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/StagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackageAssignmentApprovals/Item/Stages/StagesRequestBuilder.cs
@@ -94,7 +94,7 @@ public StagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ApprovalStage> PostAsync(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/AccessPackagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/AccessPackagesRequestBuilder.cs
index 6cf6704e331..3d591d3404a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/AccessPackagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/AccessPackagesRequestBuilder.cs
@@ -106,7 +106,7 @@ public AccessPackagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.AccessPackage> PostAsync(global::Microsoft.Graph.Models.AccessPackage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 86bcad05841..7d37e86a64e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index ae12b8fc040..317296b739a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AccessPackageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AccessPackageItemRequestBuilder.cs
index 947869285ba..7ea7542bf07 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AccessPackageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AccessPackageItemRequestBuilder.cs
@@ -100,8 +100,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Retrieve an access package with a list of accessPackageResourceRoleScope objects. These objects represent the resource roles that an access package assigns to each subject. Each object links to an accessPackageResourceRole and an accessPackageResourceScope.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/accesspackage-list-resourcerolescopes?view=graph-rest-1.0" />
+        /// Retrieve the properties and relationships of an accessPackage object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/accesspackage-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.AccessPackage"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -141,7 +141,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackage> PatchAsync(global::Microsoft.Graph.Models.AccessPackage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Retrieve an access package with a list of accessPackageResourceRoleScope objects. These objects represent the resource roles that an access package assigns to each subject. Each object links to an accessPackageResourceRole and an accessPackageResourceScope.
+        /// Retrieve the properties and relationships of an accessPackage object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -202,7 +202,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -227,7 +227,7 @@ public partial class AccessPackageItemRequestBuilderDeleteRequestConfiguration :
         {
         }
         /// <summary>
-        /// Retrieve an access package with a list of accessPackageResourceRoleScope objects. These objects represent the resource roles that an access package assigns to each subject. Each object links to an accessPackageResourceRole and an accessPackageResourceScope.
+        /// Retrieve the properties and relationships of an accessPackage object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class AccessPackageItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs
index dadda8f2722..e5cc20db7fd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssignmentPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy> PostAsync(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs
index 120e4e5b8df..fdc82995714 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy> PatchAsync(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs
index be89fe894e9..c25cfef0106 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CustomExtensionStageSettingsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.CustomExtensionStageSetting> PostAsync(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs
index a5383dffe19..0fcf6c933ea 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CustomExtensionStageSetting> PatchAsync(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs
index 2b9711a1f1f..648abf40489 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageQuestion> PatchAsync(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs
index df43afbec1c..4099f7df232 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public QuestionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessPackageQuestion> PostAsync(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsPostResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsPostResponse.cs
index 261944e8048..283f765e1a3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetApplicablePolicyRequirementsPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.Item.GetApplicablePolicyRequirements.GetApplicablePolicyRequirementsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.Item.GetApplicablePolicyRequirements.GetApplicablePolicyRequirementsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignmentRequestRequirements>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsResponse.cs
index 98fbe3ae662..6b429bdcd36 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/GetApplicablePolicyRequirements/GetApplicablePolicyRequirementsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetApplicablePolicyRequirementsResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.Item.GetApplicablePolicyRequirements.GetApplicablePolicyRequirementsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AccessPackages.Item.GetApplicablePolicyRequirements.GetApplicablePolicyRequirementsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleAccessPackages/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleAccessPackages/Ref/RefRequestBuilder.cs
index 12ecc772b11..3499d97b95f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleAccessPackages/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleAccessPackages/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/identityGovernance/entitlementManagement/accessPackages/{accessPackage%2Did}/incompatibleAccessPackages/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleGroups/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleGroups/Ref/RefRequestBuilder.cs
index 6ef3e13c175..59ab2700487 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleGroups/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/IncompatibleGroups/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/identityGovernance/entitlementManagement/accessPackages/{accessPackage%2Did}/incompatibleGroups/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs
index 7efd6aaffdd..853693bce9e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRoleScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs
index a7ab796cbae..bd0ca358e36 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index c0334325c9f..40eaff874bb 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs
index 807bb38b5a9..4d9d1526020 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index fcd39717c5f..587480562bd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index 69102afcb59..d2aa3902579 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 480c91603ad..00913a751ff 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 1040328920f..99b3da61699 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs
index 3afd03799ad..f5fa9eea3ef 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs
index 537786c22eb..db26f7f510e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs
index ffbb7ad95f6..b931bdb2206 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index aa965246972..a02410518d8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index f46fb747a73..3b9a044ff59 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index d4e5e736e87..6b9c4705d98 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 7c7a7ba47ab..f888ffcbb4c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs
index 024d2f27eac..92f74001d4c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 209ec0373bb..ac75c5323e1 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs
index c843297259e..1241c8dbae9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs
index bf3b918b3c0..1052cf9782f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs
index 9207207e4c7..6058dc2811d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AccessPackages/Item/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ResourceRoleScopesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRoleScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs
index 54668ccb7e0..3e81bbf5a53 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/AssignmentPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public AssignmentPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy> PostAsync(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs
index 13393252d54..fcbc3f2682b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/AccessPackageAssignmentPolicyItemRequestBuilder.cs
@@ -123,7 +123,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy> PutAsync(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -184,7 +184,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs
index 0dc8d0cbe3e..73c5de0c3c5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/CustomExtensionStageSettingsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CustomExtensionStageSettingsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.CustomExtensionStageSetting> PostAsync(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs
index 87ef18e36c5..446cbfb821b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/CustomExtensionStageSettings/Item/CustomExtensionStageSettingItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CustomExtensionStageSetting> PatchAsync(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CustomExtensionStageSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs
index bc849a8dfde..3b5d2e3b431 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/Item/AccessPackageQuestionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageQuestion> PatchAsync(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs
index 72205d26e3c..00365583875 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentPolicies/Item/Questions/QuestionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public QuestionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessPackageQuestion> PostAsync(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/AssignmentRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/AssignmentRequestsRequestBuilder.cs
index 2da34596ba0..cb52a423cd4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/AssignmentRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/AssignmentRequestsRequestBuilder.cs
@@ -106,7 +106,7 @@ public AssignmentRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignmentRequest> PostAsync(global::Microsoft.Graph.Models.AccessPackageAssignmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 4fc2b67506e..628002d6214 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignmentRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index f634d299775..773eb8ba0b5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/AccessPackageAssignmentRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/AccessPackageAssignmentRequestItemRequestBuilder.cs
index 6fcec1b80f3..2750f0921a0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/AccessPackageAssignmentRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/AccessPackageAssignmentRequestItemRequestBuilder.cs
@@ -134,7 +134,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignmentRequest> PatchAsync(global::Microsoft.Graph.Models.AccessPackageAssignmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -195,7 +195,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumePostRequestBody.cs
index 296596330ff..6a98db2418e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.Item.Resume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.Item.Resume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumeRequestBuilder.cs
index 4c3ff081d72..c351436202a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/AssignmentRequests/Item/Resume/ResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Entitleme
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.Item.Resume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.AssignmentRequests.Item.Resume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessGetResponse.cs
index 2314d189161..01dd34ccacd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AdditionalAccessGetResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccess.AdditionalAccessGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccess.AdditionalAccessGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessResponse.cs
index caf3c836e60..607ea704657 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccess/AdditionalAccessResponse.cs
@@ -20,7 +20,7 @@ public partial class AdditionalAccessResponse : global::Microsoft.Graph.Identity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccess.AdditionalAccessResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccess.AdditionalAccessResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdGetResponse.cs
index 3ff19dae904..dd4b739ac36 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdResponse.cs
index 0b489f58965..ae55e0046e6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId/AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdResponse.cs
@@ -20,7 +20,7 @@ public partial class AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageId.AdditionalAccessWithAccessPackageIdWithIncompatibleAccessPackageIdResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AssignmentsRequestBuilder.cs
index eb3f36e66d3..28df9b69fa9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/AssignmentsRequestBuilder.cs
@@ -124,7 +124,7 @@ public AssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignment> PostAsync(global::Microsoft.Graph.Models.AccessPackageAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index a5700af7b4a..f5df2f79cec 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index aa4affc2407..9b97a97dd4c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.EntitlementManagement.Assignments.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/Item/AccessPackageAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/Item/AccessPackageAssignmentItemRequestBuilder.cs
index fbdb0f15074..6a8c2071b86 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/Item/AccessPackageAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Assignments/Item/AccessPackageAssignmentItemRequestBuilder.cs
@@ -121,7 +121,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageAssignment> PatchAsync(global::Microsoft.Graph.Models.AccessPackageAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -182,7 +182,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/CatalogsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/CatalogsRequestBuilder.cs
index 66455f62008..3e450efc142 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/CatalogsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/CatalogsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CatalogsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.AccessPackageCatalog> PostAsync(global::Microsoft.Graph.Models.AccessPackageCatalog body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageCatalog body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/AccessPackageCatalogItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/AccessPackageCatalogItemRequestBuilder.cs
index 11b1bba06d2..68112e6fd64 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/AccessPackageCatalogItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/AccessPackageCatalogItemRequestBuilder.cs
@@ -129,7 +129,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageCatalog> PatchAsync(global::Microsoft.Graph.Models.AccessPackageCatalog body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -190,7 +190,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageCatalog body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs
index cc4808a1b1d..381325d3595 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CustomWorkflowExtensionsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.CustomCalloutExtension> PostAsync(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs
index a34e2b1270b..d463ddf3436 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs
@@ -35,8 +35,8 @@ public CustomCalloutExtensionItemRequestBuilder(string rawUrl, IRequestAdapter r
         {
         }
         /// <summary>
-        /// Delete an accessPackageAssignmentWorkflowExtension object. The custom workflow extension must first be removed from any associated policies before it can be deleted. Follow these steps to remove the custom workflow extension from any associated policies:
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/accesspackageassignmentworkflowextension-delete?view=graph-rest-1.0" />
+        /// Delete an accessPackageAssignmentRequestWorkflowExtension object. The custom workflow extension must first be removed from any associated policies before it can be deleted. Follow these steps to remove the custom workflow extension from any associated policies:
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/accesspackageassignmentrequestworkflowextension-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -58,8 +58,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Read the properties and relationships of an accessPackageAssignmentWorkflowExtension object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/accesspackageassignmentworkflowextension-get?view=graph-rest-1.0" />
+        /// Read the properties and relationships of an accessPackageAssignmentRequestWorkflowExtension object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/accesspackageassignmentrequestworkflowextension-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.CustomCalloutExtension"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CustomCalloutExtension> PatchAsync(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.CustomCalloutExtension>(requestInfo, global::Microsoft.Graph.Models.CustomCalloutExtension.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Delete an accessPackageAssignmentWorkflowExtension object. The custom workflow extension must first be removed from any associated policies before it can be deleted. Follow these steps to remove the custom workflow extension from any associated policies:
+        /// Delete an accessPackageAssignmentRequestWorkflowExtension object. The custom workflow extension must first be removed from any associated policies before it can be deleted. Follow these steps to remove the custom workflow extension from any associated policies:
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -127,7 +127,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Read the properties and relationships of an accessPackageAssignmentWorkflowExtension object.
+        /// Read the properties and relationships of an accessPackageAssignmentRequestWorkflowExtension object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -185,7 +185,7 @@ public partial class CustomCalloutExtensionItemRequestBuilderDeleteRequestConfig
         {
         }
         /// <summary>
-        /// Read the properties and relationships of an accessPackageAssignmentWorkflowExtension object.
+        /// Read the properties and relationships of an accessPackageAssignmentRequestWorkflowExtension object.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class CustomCalloutExtensionItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 47885123601..844053f22a5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs
index 56e10952073..3409bfb154a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index b9fef38e071..ccb7f818206 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs
index b648fbe5643..627d163571b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 820400c45c9..98180fbc1d8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index 09c3d50700e..67b2e9262e6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 0503ce98172..0fa334a5871 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index c6c18e41127..da33579117a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 0d9f7b79ceb..077ca664fb8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/ResourceRolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/ResourceRolesRequestBuilder.cs
index 8fc1948a194..ed6eebed75f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/ResourceRolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceRoles/ResourceRolesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ResourceRolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 9f4600cf96b..c0293075231 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs
index c2b5ee170ca..0e36a6a359f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 03850882f11..debb1536d8c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index 13f97ec4284..fbcebe6a441 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 3b82d279246..51ee836e204 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index a485fe90363..3c6b46e62ce 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 5cde63992bd..ae276036782 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index a1e6bbc4cd1..2928967882d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 8547619e501..b54bf28dfae 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/ResourceScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/ResourceScopesRequestBuilder.cs
index ab7f679a2a2..bc98520c0e8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/ResourceScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/ResourceScopes/ResourceScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
index 0b8e71172b0..e4c69dd3dc9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index e06b7f7f3a5..e1cf02ab6ad 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
index 889c6a391e6..82c2d574aa0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 5d0785839e9..bacde94c120 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index bb70a64f572..a9b695e678e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 2ee3586725e..ee2e9cb3c7a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/RolesRequestBuilder.cs
index a4c71b85c66..535a2837b42 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 270bf55d59e..b08d4e90431 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
index e436d4c0a13..d18f8103b23 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 3f07177964c..2ad28bd4fbe 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index 6a32b438b47..b0b3dd51d6e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index dc9c0403c8f..8c82bf15a1f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs
index cf6b55d9d02..a82d8522c3d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/ResourcesRequestBuilder.cs
index 6f104e607c3..aa7615ca2cf 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Catalogs/Item/Resources/ResourcesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PostAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/ConnectedOrganizationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/ConnectedOrganizationsRequestBuilder.cs
index b8bc51e743c..47e929c8f4e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/ConnectedOrganizationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/ConnectedOrganizationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ConnectedOrganizationsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.ConnectedOrganization> PostAsync(global::Microsoft.Graph.Models.ConnectedOrganization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConnectedOrganization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ConnectedOrganizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ConnectedOrganizationItemRequestBuilder.cs
index 8e62b57d0fb..a6be6f5aa61 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ConnectedOrganizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ConnectedOrganizationItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConnectedOrganization> PatchAsync(global::Microsoft.Graph.Models.ConnectedOrganization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConnectedOrganization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ExternalSponsors/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ExternalSponsors/Ref/RefRequestBuilder.cs
index a08d8a613df..0a9eccf7d71 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ExternalSponsors/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/ExternalSponsors/Ref/RefRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/identityGovernance/entitlementManagement/connectedOrganizations/{connectedOrganization%2Did}/externalSponsors/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/InternalSponsors/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/InternalSponsors/Ref/RefRequestBuilder.cs
index ae45bb3fd04..01b97050301 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/InternalSponsors/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ConnectedOrganizations/Item/InternalSponsors/Ref/RefRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/identityGovernance/entitlementManagement/connectedOrganizations/{connectedOrganization%2Did}/internalSponsors/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/EntitlementManagementRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/EntitlementManagementRequestBuilder.cs
index 6d434f0706b..d40750e5ce4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/EntitlementManagementRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/EntitlementManagementRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EntitlementManagement> PatchAsync(global::Microsoft.Graph.Models.EntitlementManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EntitlementManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/AccessPackageResourceEnvironmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/AccessPackageResourceEnvironmentItemRequestBuilder.cs
index b485430ff18..6388df65c90 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/AccessPackageResourceEnvironmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/AccessPackageResourceEnvironmentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceEnvironment> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceEnvironment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceEnvironment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
index f94f1e4b1c7..b8f71bebdc0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 98a71c02e58..e42c6aa6db7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
index 1cc91c13ede..8bb9a64fbf6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 654fd505d5b..50f8b45102b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index ab4a199354b..5f77d786bab 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index cf48f89adb4..344b22e4d04 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/RolesRequestBuilder.cs
index d5eb54632a3..e93d23f23aa 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 209455e82dd..b5b02e5618d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
index baeb72b20bb..e61af793ce8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index e0bfec2e6de..822cfb59edb 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index ea4788497fb..8bac336f91c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 3401b8e686b..af0ed0ec5d5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs
index 90e70409e1c..703a8e2c78a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/Item/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/ResourcesRequestBuilder.cs
index 134b1bd20ea..dc02ec6fd08 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/Item/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PostAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/ResourceEnvironmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/ResourceEnvironmentsRequestBuilder.cs
index eb961afbf38..fe75015246f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/ResourceEnvironmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceEnvironments/ResourceEnvironmentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ResourceEnvironmentsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceEnvironment> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceEnvironment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceEnvironment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/AccessPackageResourceRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/AccessPackageResourceRequestItemRequestBuilder.cs
index d15efe5f49f..b5f4c6f0270 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/AccessPackageResourceRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/AccessPackageResourceRequestItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRequest> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CatalogRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CatalogRequestBuilder.cs
index 31cd749a1b4..5c06c4ad3b0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CatalogRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CatalogRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageCatalog> PatchAsync(global::Microsoft.Graph.Models.AccessPackageCatalog body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageCatalog body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs
index bdc445227cb..26f3dffcdc8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/CustomWorkflowExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CustomWorkflowExtensionsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.CustomCalloutExtension> PostAsync(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs
index 52bb15ae0b6..da23ba0d50b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/CustomWorkflowExtensions/Item/CustomCalloutExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CustomCalloutExtension> PatchAsync(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CustomCalloutExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index b0d7c1315c3..860ac39f549 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs
index 94407d7904f..7dcc2140fe3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 7a2afc21f8a..9b72f6dba04 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs
index be008097d22..cdb2b7e9627 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 6d6ec99d7aa..681ebaa03c3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index d582e5cf4ba..02f3e466bf1 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index e6e9d8dc690..d082a0cad2a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 7d34e6fcfa9..c87af63f0f4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index f64d4e868a6..4030275cc62 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/ResourceRolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/ResourceRolesRequestBuilder.cs
index 89957097497..ebe38592838 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/ResourceRolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceRoles/ResourceRolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceRolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index dd44571c421..60e5b4c9ed9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs
index e691e304290..8d84320db98 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index bda2497d798..30464501402 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index efa6a8b32b0..d8673d56ccd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 6216d394b7e..25aad533154 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index dea0bbb26d7..991dd3e99cb 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 8c78186935f..4143e882dc1 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index a75089e1bf0..49db08ab1ba 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 8f85a726eb6..e8791f95b9c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/ResourceScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/ResourceScopesRequestBuilder.cs
index 26c459e8c05..08a2f058be2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/ResourceScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/ResourceScopes/ResourceScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/AccessPackageResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
index 74bc6be38b6..36ccd38a378 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 9880e7cd76e..a0bf4bce008 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
index 711844bfa26..b23af4a47e7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 02b9b296f86..291d68d4375 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index 5ad44e8e5cb..dc1d82a38a6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 646e5e3ad7e..44661969ec8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/RolesRequestBuilder.cs
index 6c6708d63c0..6a1980a9484 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 5140299b280..63cc2bf0efd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
index c32d64cdc6f..ecbab10fe89 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 7807aeb3348..ae740b86a23 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index ed4f633c8ff..b029e9e3283 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 0dd0d660fe6..0920918e454 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/ScopesRequestBuilder.cs
index 3187c60c166..4eb728324dc 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/Item/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/ResourcesRequestBuilder.cs
index 0a2d043bcf8..9c2f7126467 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Catalog/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PostAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/ResourceRequestBuilder.cs
index be983194f26..0f7c895e5d0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 6fa8d65d1a7..38f1581b837 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index a2188d7cd3d..c6f55fa73d5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 503a4ebc302..e750b13818c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index 4962d15672d..b13cb15e5de 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 7b269fa4bd6..36a03bf4463 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/RolesRequestBuilder.cs
index f3f2d2a1ac2..2e9a9a70ad0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 2682c049786..dff01dcdcf2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index 56c49b833a4..2c0186e6fc9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 76d83d34dc5..fcc1e124a0d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index 7df5a40db37..3c2b17ba298 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 20a6e7693a1..187019f777e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 3ad0c8c8eff..323f3c2df89 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/ResourceRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/ResourceRequestsRequestBuilder.cs
index 0f570399fea..720bfdcd1a7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/ResourceRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRequests/ResourceRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ResourceRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRequest> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs
index d5cf435a580..a69956d7f31 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/AccessPackageResourceRoleScopeItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRoleScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs
index 8305b657489..6f35a81edd3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 2c10dac071f..22113d00d4f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs
index 3165f54d417..e8b345a6ae7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index b59ba6bcab3..3bd9369c1f6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index 94fe64ef148..c57bc38e7f2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 5111e1f3b1f..1f1a3aa7162 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index d21f6c125a6..b1fbf037db4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs
index 5a8079ce27a..3d6e32379ee 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs
index 67d1122629a..9e7e7e5a0c4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Role/RoleRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs
index 6eb65d071d8..38ad26d5a2f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/ResourceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index e9287022b01..948499f57db 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index b5828241dc5..586cc654ee7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 90fe2fccb6f..0af03c4f376 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 1f43c7f31c7..c8a84be87db 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs
index aa170816eb4..4b75376362d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index 7f43dfcc56f..3299449f6e2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs
index 0233a2b3fca..a8ac7eb3a44 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs
index 43b1b02ea7f..445e97c783b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/Item/Scope/ScopeRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs
index c16bf70f166..258a761b0fb 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/ResourceRoleScopes/ResourceRoleScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceRoleScopesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRoleScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRoleScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/AccessPackageResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
index 938e08e3baf..1e4e023e2f3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/AccessPackageResourceItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index 88c29e11577..8c924067607 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
index 28bf7e84c57..145b1eb3b77 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index b5d4ed10be6..6a8f464f86e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
index c3c6a46b0cb..96fd0db568e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
index 876476c3b85..9b462c8aa87 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/Item/Resource/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/RolesRequestBuilder.cs
index 6e4f33729e5..a5467b981fc 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
index bac55d3e687..ae3f51cde19 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/AccessPackageResourceScopeItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
index fd20cbc80d0..0fd4481b4a0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/ResourceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
index c094ad72f79..10ebc9e46e2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/AccessPackageResourceRoleItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
index f3d2b5d1708..578aa1ddd5a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/Item/Resource/ResourceRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PatchAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
index 605dbcb99de..3452244f009 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/Item/Resource/Roles/RolesRequestBuilder.cs
@@ -93,7 +93,7 @@ public RolesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceRole> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceRole body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/ScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/ScopesRequestBuilder.cs
index e9b87e47a31..64941fabaa2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/ScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/Item/Scopes/ScopesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.AccessPackageResourceScope> PostAsync(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResourceScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/ResourcesRequestBuilder.cs
index e6963c4b5fa..2ecde2475a0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AccessPackageResource> PostAsync(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AccessPackageResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Settings/SettingsRequestBuilder.cs
index 4b0c63abfd2..091cb2cee45 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/EntitlementManagement/Settings/SettingsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EntitlementManagementSettings> PatchAsync(global::Microsoft.Graph.Models.EntitlementManagementSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EntitlementManagementSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/IdentityGovernanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/IdentityGovernanceRequestBuilder.cs
index 184591e392d..5a11767bf6f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/IdentityGovernanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/IdentityGovernanceRequestBuilder.cs
@@ -110,7 +110,7 @@ public IdentityGovernanceRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.IdentityGovernance> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.IdentityGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.IdentityGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/CustomTaskExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/CustomTaskExtensionsRequestBuilder.cs
index 4a0f1705ef3..5e4cdd53a78 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/CustomTaskExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/CustomTaskExtensionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CustomTaskExtensionsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension> PostAsync(global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 36a69843c48..166e3526c0c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CustomTaskExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CustomTaskExtensionItemRequestBuilder.cs
index 7a5a4c57da9..5b219b3bd78 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CustomTaskExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/CustomTaskExtensionItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 3780f5b7a53..4212dbb973d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/CustomTaskExtensions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 942f345d43f..4dcedaf00f2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 84c78291d77..710639c2a37 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs
index 402704b861e..851c298d000 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs
@@ -53,7 +53,7 @@ public ActivatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.User>("subjects", Subjects);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs
index d03e8ef4226..18170a27407 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs
index 816de88f13f..dec3de3d368 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateNewVersionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.Workflow>("workflow", Workflow);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs
index 779cd6d3c13..29df9d7cdf0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs
@@ -52,7 +52,7 @@ public MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder(string raw
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.Workflow> PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 11e521b3b55..86c4ad51504 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index dbb24934d9f..ecb510f67ed 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index bc20ef1874b..a1aee4da358 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index e15bbe32363..8b764145204 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index b34e2515ea9..4e5664b867e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 2d0d8eeea03..ab8e8f5e435 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 3dc2ec21f00..db8245fedfe 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
index ec2147638a4..0651f480ddb 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
@@ -85,8 +85,8 @@ public UserProcessingResultsRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/RunsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/RunsRequestBuilder.cs
index 3095baf53b8..39e39f6920a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/RunsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Runs/RunsRequestBuilder.cs
@@ -85,8 +85,8 @@ public RunsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Runs.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index bfadec28ee7..893d000c3ce 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 74b03042f9e..36ee54053a0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 83d4eb03a37..1516ad48d4a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs
index 26a9b9e71e4..a6a56361465 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs
@@ -85,8 +85,8 @@ public TaskReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.TaskReports.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.TaskReports.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs
index 43f4e7618f7..50b199dc4d9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index f386beb3a9f..ace52d2e478 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 9ea311eb38f..529144271bd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 57a6ca2bc17..92e73b76133 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/TasksRequestBuilder.cs
index 34103d9265f..8d294302500 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PostAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 3876dec0e84..1560a3b2826 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 548e82fff73..4b4bb69144a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index befe84c2201..28489ad48f0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index fe834d864ef..eea8e5dd301 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
index cb92479f35f..0dd2fa29238 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
@@ -85,8 +85,8 @@ public UserProcessingResultsRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index f12056748ee..b836bdc622f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 8993fce7b3a..0bef8c7dafc 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs
index 1c30deb9131..e08b04e3879 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 7700451291a..dc193545825 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 0742ed4e3a5..d9dad882ea7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.DeletedItems.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index bbac8e9881c..97e337936c3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs
index b52d9806eb6..db914d6e9d6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/DeletedItems/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PostAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/InsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/InsightsRequestBuilder.cs
index c55aca13bb8..bc2067636d6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/InsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/InsightsRequestBuilder.cs
@@ -91,8 +91,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
@@ -103,8 +103,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
@@ -115,8 +115,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceWorkflowsProcessedByCategoryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceWorkflowsProcessedByCategoryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceWorkflowsProcessedByCategoryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceWorkflowsProcessedByCategoryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceWorkflowsProcessedByCategoryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
@@ -127,8 +127,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
@@ -148,7 +148,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.Insights> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.Insights body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -209,7 +209,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.Insights body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs
index 6a00d9ca225..ae72d357450 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -37,7 +37,7 @@ public partial class TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeGet
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime.TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime.TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.TopTasksInsightsSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs
index e0e13be2c63..048d22afb06 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime/TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeRes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime.TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopTasksProcessedSummaryWithStartDateTimeWithEndDateTime.TopTasksProcessedSummaryWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs
index 58261b61431..d2c175f99a0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -37,7 +37,7 @@ public partial class TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTim
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.TopWorkflowsInsightsSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs
index 17b3ca9c6ab..181ee25668e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Insights/MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime/TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTim
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Insights.MicrosoftGraphIdentityGovernanceTopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTime.TopWorkflowsProcessedSummaryWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/LifecycleWorkflowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/LifecycleWorkflowsRequestBuilder.cs
index dbaf0a3452d..436224a4a92 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/LifecycleWorkflowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/LifecycleWorkflowsRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.LifecycleWorkflowsContainer> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.LifecycleWorkflowsContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.LifecycleWorkflowsContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Settings/SettingsRequestBuilder.cs
index 48a8b87cd28..c5e614d9f52 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Settings/SettingsRequestBuilder.cs
@@ -76,7 +76,7 @@ public SettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.LifecycleManagementSettings> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.LifecycleManagementSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -118,7 +118,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.LifecycleManagementSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 78b1750a65f..8c479bc9a17 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.WorkflowTemplates.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.WorkflowTemplates.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index c794a1f3da1..9fe50fbcd08 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.WorkflowTemplates.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.WorkflowTemplates.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index f23bb1e720d..40828f2b154 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/WorkflowTemplates/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 5aa1f4b5dbd..e25ad43b8b1 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 2cb64b2b2e0..d87734d48c9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs
index 83b9aa1805c..a9e31bb8261 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/ActivatePostRequestBody.cs
@@ -53,7 +53,7 @@ public ActivatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.User>("subjects", Subjects);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs
index 5746136f0f7..f52c35e941f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceActivate/MicrosoftGraphIdentityGovernanceActivateRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceActivate.ActivatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs
index cdb17d6ad51..b32920b3ada 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/CreateNewVersionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateNewVersionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.Workflow>("workflow", Workflow);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs
index fc20b560c72..55deaad8371 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/MicrosoftGraphIdentityGovernanceCreateNewVersion/MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder.cs
@@ -52,7 +52,7 @@ public MicrosoftGraphIdentityGovernanceCreateNewVersionRequestBuilder(string raw
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.Workflow> PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.MicrosoftGraphIdentityGovernanceCreateNewVersion.CreateNewVersionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 2e3d19032a2..cc4aad1e39e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index c67e18ae993..f008ed7850b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 15aff94c126..e615b1e81d6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index e653c6271a3..7cd5b97ad9f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 65f253038d2..f89eb7e5fc1 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 3039d44d7ff..8a96bfbb53a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 7b7a6c26675..1461c067911 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
index 5b7991ee6bc..8b188e054fe 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
@@ -86,8 +86,8 @@ public UserProcessingResultsRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/RunsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/RunsRequestBuilder.cs
index 73615169e1a..e44137e2da3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/RunsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Runs/RunsRequestBuilder.cs
@@ -86,8 +86,8 @@ public RunsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Runs.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index dc0354b9ee4..570a9e20cfd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index a3b4df80f11..804fd23f7b2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.TaskReports.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index d464f4e3c4f..84a7bc96903 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs
index 7be6d44ee08..98f8162b055 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/TaskReports/TaskReportsRequestBuilder.cs
@@ -86,8 +86,8 @@ public TaskReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.TaskReports.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.TaskReports.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs
index 285186040b2..34433df3b05 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 55687eb2672..7ba368d110d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 0f3ac9b1d79..074cdfada50 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 20daf864b5f..e1382122ad4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/TasksRequestBuilder.cs
index 38816fb0258..2bf160d7ff2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Tasks/TasksRequestBuilder.cs
@@ -94,7 +94,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PostAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index ba7cee7bd4d..ee5bfb8b0c4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 8b82c6e6bae..a5e2ff166b3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 21bf5406cf5..9ff5eda9356 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.UserProcessingResults.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index de5df275d93..71452a3bcd6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
index 0e31591eb0a..56489e0afb5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/UserProcessingResults/UserProcessingResultsRequestBuilder.cs
@@ -86,8 +86,8 @@ public UserProcessingResultsRequestBuilder(string rawUrl, IRequestAdapter reques
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.UserProcessingResults.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTime.MicrosoftGraphIdentityGovernanceSummaryWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime);
         }
         /// <summary>
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 498c843ca5b..233b4551af9 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/CreatedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 69ef6d5c6b1..c4e099238b3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/LastModifiedBy/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs
index 32421ab36ff..1b7dbf08504 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
index 741b93a28a8..76df3dc1586 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/MicrosoftGraphIdentityGovernanceResumeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.Lifecycle
         public async Task PostAsync(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
index 3faefd13156..2732abc49cf 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/MicrosoftGraphIdentityGovernanceResume/ResumePostRequestBody.cs
@@ -85,7 +85,7 @@ public ResumePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.LifecycleWorkflows.Workflows.Item.Versions.Item.Tasks.Item.TaskProcessingResults.Item.MicrosoftGraphIdentityGovernanceResume.ResumePostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData>("data", Data);
             writer.WriteStringValue("source", Source);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
index bd60f1e525b..a960cefb3a6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/Item/TaskProcessingResults/Item/Subject/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs
index e93652999fd..082bef84a20 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/Versions/Item/Tasks/TasksRequestBuilder.cs
@@ -94,7 +94,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject> PostAsync(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.TaskObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/WorkflowItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/WorkflowItemRequestBuilder.cs
index 5a1e5409839..cd96c8b6c33 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/WorkflowItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/Item/WorkflowItemRequestBuilder.cs
@@ -165,7 +165,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.Workflow> PatchAsync(global::Microsoft.Graph.Models.IdentityGovernance.Workflow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -226,7 +226,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.Workflow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/WorkflowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/WorkflowsRequestBuilder.cs
index c92647126dd..15f9a966676 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/WorkflowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/LifecycleWorkflows/Workflows/WorkflowsRequestBuilder.cs
@@ -95,7 +95,7 @@ public WorkflowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.IdentityGovernance.Workflow> PostAsync(global::Microsoft.Graph.Models.IdentityGovernance.Workflow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityGovernance.Workflow body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/AssignmentApprovalsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/AssignmentApprovalsRequestBuilder.cs
index 3af1f718812..1eeaf956b12 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/AssignmentApprovalsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/AssignmentApprovalsRequestBuilder.cs
@@ -104,7 +104,7 @@ public AssignmentApprovalsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.Approval> PostAsync(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index d719e7bfe59..f42e9f52d7f 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Approval>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 9def95ac35c..197ac9adec2 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentApprovals.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/ApprovalItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/ApprovalItemRequestBuilder.cs
index 24a9a78636e..c6c27fd1a82 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/ApprovalItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/ApprovalItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Approval> PatchAsync(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Approval body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs
index 6737faa4620..11b5b33a988 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/Item/ApprovalStageItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ApprovalStage> PatchAsync(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/StagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/StagesRequestBuilder.cs
index 5e6603eaac1..47a45ad0a55 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/StagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentApprovals/Item/Stages/StagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public StagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ApprovalStage> PostAsync(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ApprovalStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/AssignmentScheduleInstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/AssignmentScheduleInstancesRequestBuilder.cs
index 32ce006be22..e1e9be251a5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/AssignmentScheduleInstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/AssignmentScheduleInstancesRequestBuilder.cs
@@ -105,7 +105,7 @@ public AssignmentScheduleInstancesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance> PostAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index d2ac8a0f933..1400fefd0ae 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 19ec027b521..0413686d711 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/Item/PrivilegedAccessGroupAssignmentScheduleInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/Item/PrivilegedAccessGroupAssignmentScheduleInstanceItemRequestBuilder.cs
index e367aa150f7..9c2b6ea2d47 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/Item/PrivilegedAccessGroupAssignmentScheduleInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleInstances/Item/PrivilegedAccessGroupAssignmentScheduleInstanceItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/AssignmentScheduleRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/AssignmentScheduleRequestsRequestBuilder.cs
index 84470217217..8d90af5d4b5 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/AssignmentScheduleRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/AssignmentScheduleRequestsRequestBuilder.cs
@@ -106,7 +106,7 @@ public AssignmentScheduleRequestsRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest> PostAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index e212d187cd7..19bd7f633e7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index c7706330494..68fb205c9c7 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/Item/PrivilegedAccessGroupAssignmentScheduleRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/Item/PrivilegedAccessGroupAssignmentScheduleRequestItemRequestBuilder.cs
index 72b96623174..b00de1b3c40 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/Item/PrivilegedAccessGroupAssignmentScheduleRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentScheduleRequests/Item/PrivilegedAccessGroupAssignmentScheduleRequestItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/AssignmentSchedulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/AssignmentSchedulesRequestBuilder.cs
index 595466a8ed1..561007794cf 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/AssignmentSchedulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/AssignmentSchedulesRequestBuilder.cs
@@ -105,7 +105,7 @@ public AssignmentSchedulesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule> PostAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 5e685759c68..62553d0e168 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 904713bc6c8..3ce4a12ed53 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.AssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/Item/PrivilegedAccessGroupAssignmentScheduleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/Item/PrivilegedAccessGroupAssignmentScheduleItemRequestBuilder.cs
index 929a6b7a81d..89071ac13a6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/Item/PrivilegedAccessGroupAssignmentScheduleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/AssignmentSchedules/Item/PrivilegedAccessGroupAssignmentScheduleItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/EligibilityScheduleInstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/EligibilityScheduleInstancesRequestBuilder.cs
index 481de6f188f..98f0eb66e01 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/EligibilityScheduleInstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/EligibilityScheduleInstancesRequestBuilder.cs
@@ -105,7 +105,7 @@ public EligibilityScheduleInstancesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance> PostAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index b74bf543c44..20021de344c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index affbb52ad93..c44cb87496d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/Item/PrivilegedAccessGroupEligibilityScheduleInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/Item/PrivilegedAccessGroupEligibilityScheduleInstanceItemRequestBuilder.cs
index c0f4f29cc52..d67332b9af4 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/Item/PrivilegedAccessGroupEligibilityScheduleInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleInstances/Item/PrivilegedAccessGroupEligibilityScheduleInstanceItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/EligibilityScheduleRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/EligibilityScheduleRequestsRequestBuilder.cs
index 821dd9c099b..ae331e8f480 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/EligibilityScheduleRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/EligibilityScheduleRequestsRequestBuilder.cs
@@ -106,7 +106,7 @@ public EligibilityScheduleRequestsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest> PostAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 3ceddfa2398..fc358258d91 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 8fcd6528586..eae60da9ccb 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/Item/PrivilegedAccessGroupEligibilityScheduleRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/Item/PrivilegedAccessGroupEligibilityScheduleRequestItemRequestBuilder.cs
index 59e361f51e0..f88f85e773e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/Item/PrivilegedAccessGroupEligibilityScheduleRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilityScheduleRequests/Item/PrivilegedAccessGroupEligibilityScheduleRequestItemRequestBuilder.cs
@@ -121,7 +121,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -182,7 +182,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/EligibilitySchedulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/EligibilitySchedulesRequestBuilder.cs
index ab51d5cc9b3..0d833684b36 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/EligibilitySchedulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/EligibilitySchedulesRequestBuilder.cs
@@ -105,7 +105,7 @@ public EligibilitySchedulesRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule> PostAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 45346991665..a4c8440dc9b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index f8d6e2edfb6..ceffb3a44d6 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityGovernance.PrivilegedAccess.Group.EligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/Item/PrivilegedAccessGroupEligibilityScheduleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/Item/PrivilegedAccessGroupEligibilityScheduleItemRequestBuilder.cs
index 7163a47c78a..cb0cd354d46 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/Item/PrivilegedAccessGroupEligibilityScheduleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/EligibilitySchedules/Item/PrivilegedAccessGroupEligibilityScheduleItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/GroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/GroupRequestBuilder.cs
index 4f80306c6e7..3be529f5022 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/GroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/Group/GroupRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessGroup> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/PrivilegedAccessRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/PrivilegedAccessRequestBuilder.cs
index 324f959022a..2a4da09a65d 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/PrivilegedAccessRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/PrivilegedAccess/PrivilegedAccessRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrivilegedAccessRoot> PatchAsync(global::Microsoft.Graph.Models.PrivilegedAccessRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrivilegedAccessRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs
index c3d20dce87b..f334d693393 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/AgreementAcceptancesRequestBuilder.cs
@@ -93,7 +93,7 @@ public AgreementAcceptancesRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PostAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
index d10531ed1b7..d2f987a6687 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/AgreementAcceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PatchAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/AgreementsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/AgreementsRequestBuilder.cs
index 6585e5df314..677df3a00d0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/AgreementsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/AgreementsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AgreementsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Agreement> PostAsync(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs
index cc446a18ba2..a01d82997cd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/AcceptancesRequestBuilder.cs
@@ -94,7 +94,7 @@ public AcceptancesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PostAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
index 4d0c86804b8..e0a62bbe799 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Acceptances/Item/AgreementAcceptanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementAcceptance> PatchAsync(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementAcceptance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/AgreementItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/AgreementItemRequestBuilder.cs
index e583dd92780..a05863aac8e 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/AgreementItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/AgreementItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Agreement> PatchAsync(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Agreement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/FileRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/FileRequestBuilder.cs
index 9808074ddfd..c3b56efd3e3 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/FileRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/FileRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFile> PatchAsync(global::Microsoft.Graph.Models.AgreementFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs
index 355f551b74a..80ff20c7c2c 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/AgreementFileLocalizationItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PatchAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
index b4f5a78ad7a..0b2e524e738 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PatchAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs
index 5d089160570..a85680982f1 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PostAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs
index 5f5f12581e3..af53cb8dcb8 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/FileNamespace/Localizations/LocalizationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public LocalizationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PostAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/FilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/FilesRequestBuilder.cs
index 6b7cd81294f..730de2453dd 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/FilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/FilesRequestBuilder.cs
@@ -94,7 +94,7 @@ public FilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PostAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs
index 2a72fb59549..bdcca21c18a 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/AgreementFileLocalizationItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileLocalization> PatchAsync(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
index 57fbddc0d43..4aa70c3bc94 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/Item/AgreementFileVersionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PatchAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs
index 2a5e504f0c9..f05923a32c0 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/Agreements/Item/Files/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.AgreementFileVersion> PostAsync(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AgreementFileVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/TermsOfUseRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/TermsOfUseRequestBuilder.cs
index 4080154a15c..8075108143b 100644
--- a/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/TermsOfUseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityGovernance/TermsOfUse/TermsOfUseRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermsOfUseContainer> PatchAsync(global::Microsoft.Graph.Models.TermsOfUseContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermsOfUseContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/IdentityProtectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/IdentityProtectionRequestBuilder.cs
index 5144e362cbe..6aa8b0f8751 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/IdentityProtectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/IdentityProtectionRequestBuilder.cs
@@ -98,7 +98,7 @@ public IdentityProtectionRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.IdentityProtectionRoot> PatchAsync(global::Microsoft.Graph.Models.IdentityProtectionRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -140,7 +140,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityProtectionRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/Item/RiskDetectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/Item/RiskDetectionItemRequestBuilder.cs
index 621dbf8fa07..ef53a5efac9 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/Item/RiskDetectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/Item/RiskDetectionItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RiskDetection> PatchAsync(global::Microsoft.Graph.Models.RiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/RiskDetectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/RiskDetectionsRequestBuilder.cs
index 257dfdc3346..ec256ee254d 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/RiskDetectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskDetections/RiskDetectionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public RiskDetectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.RiskDetection> PostAsync(global::Microsoft.Graph.Models.RiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
index 3c5a6277e43..8d9d2eeffef 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
@@ -52,7 +52,7 @@ public ConfirmCompromisedPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.ConfirmCompromised.ConfirmCompromisedPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.ConfirmCompromised.ConfirmCompromisedPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("servicePrincipalIds", ServicePrincipalIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
index 054ddd76104..a6a8617c954 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyServ
         public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.ConfirmCompromised.ConfirmCompromisedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.ConfirmCompromised.ConfirmCompromisedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissPostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissPostRequestBody.cs
index 60a3af74022..63f97d2875e 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissPostRequestBody.cs
@@ -52,7 +52,7 @@ public DismissPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.Dismiss.DismissPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.Dismiss.DismissPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("servicePrincipalIds", ServicePrincipalIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissRequestBuilder.cs
index 67c25a9f4ce..b91f5f02f17 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Dismiss/DismissRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyServ
         public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.Dismiss.DismissPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityProtection.RiskyServicePrincipals.Dismiss.DismissPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/HistoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/HistoryRequestBuilder.cs
index 15de336ba35..5996a95255d 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/HistoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/HistoryRequestBuilder.cs
@@ -94,7 +94,7 @@ public HistoryRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem> PostAsync(global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/Item/RiskyServicePrincipalHistoryItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/Item/RiskyServicePrincipalHistoryItemItemRequestBuilder.cs
index f3532297e22..acf85a0c9c7 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/Item/RiskyServicePrincipalHistoryItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/History/Item/RiskyServicePrincipalHistoryItemItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem> PatchAsync(global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/RiskyServicePrincipalItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/RiskyServicePrincipalItemRequestBuilder.cs
index 366ccd578a5..d84ed7dd854 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/RiskyServicePrincipalItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/Item/RiskyServicePrincipalItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RiskyServicePrincipal> PatchAsync(global::Microsoft.Graph.Models.RiskyServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RiskyServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/RiskyServicePrincipalsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/RiskyServicePrincipalsRequestBuilder.cs
index 2f1ae27f658..ad26f58f033 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/RiskyServicePrincipalsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyServicePrincipals/RiskyServicePrincipalsRequestBuilder.cs
@@ -106,7 +106,7 @@ public RiskyServicePrincipalsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.RiskyServicePrincipal> PostAsync(global::Microsoft.Graph.Models.RiskyServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RiskyServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
index 68cab4a3753..a660767edeb 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedPostRequestBody.cs
@@ -52,7 +52,7 @@ public ConfirmCompromisedPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmCompromised.ConfirmCompromisedPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmCompromised.ConfirmCompromisedPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("userIds", UserIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
index ac80ce38176..78d2e712674 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmCompromised/ConfirmCompromisedRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyUser
         public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmCompromised.ConfirmCompromisedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmCompromised.ConfirmCompromisedPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafePostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafePostRequestBody.cs
index 6b6d9e23b73..9c394f7f5ec 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafePostRequestBody.cs
@@ -52,7 +52,7 @@ public ConfirmSafePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmSafe.ConfirmSafePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmSafe.ConfirmSafePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("userIds", UserIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafeRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafeRequestBuilder.cs
index 8fa2ce5ab5d..7180cd6e2a6 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/ConfirmSafe/ConfirmSafeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyUser
         public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmSafe.ConfirmSafePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityProtection.RiskyUsers.ConfirmSafe.ConfirmSafePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissPostRequestBody.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissPostRequestBody.cs
index 99a90e4ac28..67f1928b5bc 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissPostRequestBody.cs
@@ -52,7 +52,7 @@ public DismissPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.IdentityProtection.RiskyUsers.Dismiss.DismissPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityProtection.RiskyUsers.Dismiss.DismissPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("userIds", UserIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissRequestBuilder.cs
index a2043818114..0bbeb4d0ee2 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Dismiss/DismissRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyUser
         public async Task PostAsync(global::Microsoft.Graph.IdentityProtection.RiskyUsers.Dismiss.DismissPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Ident
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.IdentityProtection.RiskyUsers.Dismiss.DismissPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/HistoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/HistoryRequestBuilder.cs
index 4563c4290ad..b018d459ebb 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/HistoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/HistoryRequestBuilder.cs
@@ -94,7 +94,7 @@ public HistoryRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.RiskyUserHistoryItem> PostAsync(global::Microsoft.Graph.Models.RiskyUserHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RiskyUserHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/Item/RiskyUserHistoryItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/Item/RiskyUserHistoryItemItemRequestBuilder.cs
index 26ab8dfc091..8572b50ada7 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/Item/RiskyUserHistoryItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/History/Item/RiskyUserHistoryItemItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RiskyUserHistoryItem> PatchAsync(global::Microsoft.Graph.Models.RiskyUserHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RiskyUserHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/RiskyUserItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/RiskyUserItemRequestBuilder.cs
index d6e5a2f2b68..afa61333a0e 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/RiskyUserItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/Item/RiskyUserItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RiskyUser> PatchAsync(global::Microsoft.Graph.Models.RiskyUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RiskyUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/RiskyUsersRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/RiskyUsersRequestBuilder.cs
index 1b6eab7052c..6882a55eddf 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/RiskyUsersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/RiskyUsers/RiskyUsersRequestBuilder.cs
@@ -112,7 +112,7 @@ public RiskyUsersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RiskyUser> PostAsync(global::Microsoft.Graph.Models.RiskyUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RiskyUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/Item/ServicePrincipalRiskDetectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/Item/ServicePrincipalRiskDetectionItemRequestBuilder.cs
index 9b9ad1501f1..44f350b8069 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/Item/ServicePrincipalRiskDetectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/Item/ServicePrincipalRiskDetectionItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServicePrincipalRiskDetection> PatchAsync(global::Microsoft.Graph.Models.ServicePrincipalRiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServicePrincipalRiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/ServicePrincipalRiskDetectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/ServicePrincipalRiskDetectionsRequestBuilder.cs
index bfb0c6c11f7..f9cf59aa321 100644
--- a/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/ServicePrincipalRiskDetectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProtection/ServicePrincipalRiskDetections/ServicePrincipalRiskDetectionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ServicePrincipalRiskDetectionsRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<global::Microsoft.Graph.Models.ServicePrincipalRiskDetection> PostAsync(global::Microsoft.Graph.Models.ServicePrincipalRiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServicePrincipalRiskDetection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs b/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
index 5f55d16f927..6df57ade60a 100644
--- a/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs b/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs
index b1e0baa80f3..fe3b3b76786 100644
--- a/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProviders/AvailableProviderTypes/AvailableProviderTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class AvailableProviderTypesResponse : global::Microsoft.Graph.Id
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.IdentityProviders.AvailableProviderTypes.AvailableProviderTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/IdentityProviders/IdentityProvidersRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProviders/IdentityProvidersRequestBuilder.cs
index d7711269f39..cb602eb923f 100644
--- a/src/Microsoft.Graph/Generated/IdentityProviders/IdentityProvidersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProviders/IdentityProvidersRequestBuilder.cs
@@ -106,7 +106,7 @@ public IdentityProvidersRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.IdentityProvider> PostAsync(global::Microsoft.Graph.Models.IdentityProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -150,7 +150,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.IdentityProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/IdentityProviders/Item/IdentityProviderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/IdentityProviders/Item/IdentityProviderItemRequestBuilder.cs
index 9fbfc0520f2..0c6234912ae 100644
--- a/src/Microsoft.Graph/Generated/IdentityProviders/Item/IdentityProviderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/IdentityProviders/Item/IdentityProviderItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentityProvider> PatchAsync(global::Microsoft.Graph.Models.IdentityProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentityProvider body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/InformationProtection/InformationProtectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/InformationProtection/InformationProtectionRequestBuilder.cs
index dbda0540fd8..c55fb15966b 100644
--- a/src/Microsoft.Graph/Generated/InformationProtection/InformationProtectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/InformationProtection/InformationProtectionRequestBuilder.cs
@@ -86,7 +86,7 @@ public InformationProtectionRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.InformationProtection> PatchAsync(global::Microsoft.Graph.Models.InformationProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -128,7 +128,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InformationProtection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/Item/ThreatAssessmentResultItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/Item/ThreatAssessmentResultItemRequestBuilder.cs
index 266df5b8415..f6af4050dcf 100644
--- a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/Item/ThreatAssessmentResultItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/Item/ThreatAssessmentResultItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ThreatAssessmentResult> PatchAsync(global::Microsoft.Graph.Models.ThreatAssessmentResult body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ThreatAssessmentResult body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/ResultsRequestBuilder.cs b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/ResultsRequestBuilder.cs
index e79f492c8bf..94c4bcbd33c 100644
--- a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/ResultsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/Results/ResultsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResultsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ThreatAssessmentResult> PostAsync(global::Microsoft.Graph.Models.ThreatAssessmentResult body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ThreatAssessmentResult body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/ThreatAssessmentRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/ThreatAssessmentRequestItemRequestBuilder.cs
index e214c5fee4d..7bc294d9f63 100644
--- a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/ThreatAssessmentRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/Item/ThreatAssessmentRequestItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ThreatAssessmentRequest> PatchAsync(global::Microsoft.Graph.Models.ThreatAssessmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ThreatAssessmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/ThreatAssessmentRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/ThreatAssessmentRequestsRequestBuilder.cs
index 16c1172f5f0..fae03c6c320 100644
--- a/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/ThreatAssessmentRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/InformationProtection/ThreatAssessmentRequests/ThreatAssessmentRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ThreatAssessmentRequestsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.ThreatAssessmentRequest> PostAsync(global::Microsoft.Graph.Models.ThreatAssessmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ThreatAssessmentRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Invitations/InvitationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Invitations/InvitationsRequestBuilder.cs
index 7e1cadc5807..cd55a9a2f1a 100644
--- a/src/Microsoft.Graph/Generated/Invitations/InvitationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Invitations/InvitationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InvitationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Invitation> PostAsync(global::Microsoft.Graph.Models.Invitation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Invitation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Invitations/InvitedUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Invitations/InvitedUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 9583e768ab0..99f1cb7b6e3 100644
--- a/src/Microsoft.Graph/Generated/Invitations/InvitedUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Invitations/InvitedUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Activities/ActivitiesRequestBuilder.cs
index d1494499885..8649fdcd36b 100644
--- a/src/Microsoft.Graph/Generated/Me/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Activities/ActivitiesRequestBuilder.cs
@@ -100,7 +100,7 @@ public ActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.UserActivity> PostAsync(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs
index 7768adf2159..98c03c07f10 100644
--- a/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HistoryItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ActivityHistoryItem> PostAsync(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs
index 48e8c21df21..8935c2c6461 100644
--- a/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ActivityHistoryItem> PatchAsync(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Activities/Item/UserActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Activities/Item/UserActivityItemRequestBuilder.cs
index d64bb0bb71f..4de9e2c6ac8 100644
--- a/src/Microsoft.Graph/Generated/Me/Activities/Item/UserActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Activities/Item/UserActivityItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserActivity> PatchAsync(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentGetResponse.cs
index 2ea8784c019..9d875d0eacf 100644
--- a/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentGetResponse.cs
@@ -36,7 +36,7 @@ public partial class RecentGetResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Activities.Recent.RecentGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Activities.Recent.RecentGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserActivity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentResponse.cs b/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentResponse.cs
index d8ed77ffcb7..f21d3e3a8e5 100644
--- a/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Activities/Recent/RecentResponse.cs
@@ -20,7 +20,7 @@ public partial class RecentResponse : global::Microsoft.Graph.Me.Activities.Rece
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Activities.Recent.RecentResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Activities.Recent.RecentResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
index bbef14aed47..29f51c81bda 100644
--- a/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AppRoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PostAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
index 39af65a182e..9aaefe2444e 100644
--- a/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicensePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicensePostRequestBody.cs
index 76f3c2850ac..11052472142 100644
--- a/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicensePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicensePostRequestBody.cs
@@ -69,7 +69,7 @@ public AssignLicensePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.AssignLicense.AssignLicensePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.AssignLicense.AssignLicensePostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssignedLicense>("addLicenses", AddLicenses);
             writer.WriteCollectionOfPrimitiveValues<Guid?>("removeLicenses", RemoveLicenses);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicenseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicenseRequestBuilder.cs
index e9f401ad7eb..424f419b9c5 100644
--- a/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicenseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/AssignLicense/AssignLicenseRequestBuilder.cs
@@ -52,7 +52,7 @@ public AssignLicenseRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.User> PostAsync(global::Microsoft.Graph.Me.AssignLicense.AssignLicensePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.As
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.AssignLicense.AssignLicensePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/AuthenticationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/AuthenticationRequestBuilder.cs
index b03536ad812..0937f83b92c 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/AuthenticationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/AuthenticationRequestBuilder.cs
@@ -162,7 +162,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Authentication> PatchAsync(global::Microsoft.Graph.Models.Authentication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -223,7 +223,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Authentication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs
index fea302e2d7f..92ecd4e10ef 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs
@@ -94,7 +94,7 @@ public EmailMethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EmailAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs
index f092d0573b9..f11341d895c 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EmailAuthenticationMethod> PatchAsync(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs
index ced8d239162..19a9db63272 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs
@@ -81,7 +81,7 @@ public AuthenticationMethodItemRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethod> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -123,7 +123,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs
index 6bf441dd318..e9b72fb6036 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs
@@ -52,7 +52,7 @@ public ResetPasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("newPassword", NewPassword);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs
index 97a29a69097..be1f208d76e 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs
@@ -52,7 +52,7 @@ public ResetPasswordRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.PasswordResetResponse> PostAsync(global::Microsoft.Graph.Me.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Au
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/MethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/MethodsRequestBuilder.cs
index bd59ade68cc..b2978debd55 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/Methods/MethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/Methods/MethodsRequestBuilder.cs
@@ -94,7 +94,7 @@ public MethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs
index 1f31d0c6f98..c163b4fb070 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/Operations/OperationsRequestBuilder.cs
index 3536ae1d939..eac0ad2b0ac 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.LongRunningOperation> PostAsync(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs
index 7e138a97db3..24d4172f91a 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PasswordMethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.PasswordAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.PasswordAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PasswordAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs
index a4699fa80c8..5ebf2d64f3b 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PhoneAuthenticationMethod> PatchAsync(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs
index aaa9bb88745..509eb9c3049 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PhoneMethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.PhoneAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs
index 36110bf0561..f9cb8f8953c 100644
--- a/src/Microsoft.Graph/Generated/Me/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TemporaryAccessPassMethodsRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
index e83963d7d65..07fe1235312 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AllowedCalendarSharingRolesWithUserGetResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
index 3c549d7f99b..9c2d7f4db4b 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
@@ -20,7 +20,7 @@ public partial class AllowedCalendarSharingRolesWithUserResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
index 58f96834e7f..6c6c6a25b97 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public CalendarPermissionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PostAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
index 8a1f11304f2..011a8ba2feb 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PatchAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarRequestBuilder.cs
index ccc3ca8d573..e352d512555 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarRequestBuilder.cs
@@ -117,7 +117,7 @@ public CalendarRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Calendar> PatchAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaGetResponse.cs
index 1b1a9c40ef7..85e24d88c32 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaResponse.cs
index 1902d9392d1..63e420bb9fa 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Calendar.Calenda
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaGetResponse.cs
index e96048792b3..6154a712147 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaResponse.cs
index a9a1c6f909d..5b408560928 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Calendar.Events.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/EventsRequestBuilder.cs
index dc737d24c23..890b61f7cba 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/EventsRequestBuilder.cs
@@ -100,7 +100,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
index fc3d3481546..1c94a1004dc 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
index 00c1eea3b05..d4bf7106e54 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Acce
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index 5a5d7af8f77..b55fdc08346 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index e1aa11a08cf..c6a971ab1cf 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 694febcc498..3f86dc0ad8d 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
index 1120107dfd3..402ce79fd60 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
index 32bc032cc08..fb7762bb575 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Canc
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
index 41cf9e60104..e068307b9e0 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
index d295384da09..48c0f0627ac 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Decl
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/EventItemRequestBuilder.cs
index 87888531990..f9105695f15 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/EventItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index 18c37131671..ddeedb33da7 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index e43b2dba5ce..cfd7f65374b 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
index d76ea33b534..2f0b2a4cf7c 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
index bf71b35e71b..b6dcb2ff390 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Forw
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
index 39ad8db4e16..dc380daf507 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
index d7def32313a..9d11922bf77 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Calendar.Events.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index a49b6f3a0fb..b8bd46f85ae 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index d43bf69e775..de80d571d0e 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Snoo
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index fbfbce26c07..be6a417a4cd 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index b4400e2d3c9..7274e88989a 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.Tent
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
index accc0c1333f..9f0be9f592b 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
@@ -91,7 +91,7 @@ public GetSchedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("AvailabilityViewInterval", AvailabilityViewInterval);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("EndTime", EndTime);
             writer.WriteCollectionOfPrimitiveValues<string>("Schedules", Schedules);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostResponse.cs
index e61d533341f..193098ec0eb 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetSchedulePostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSchedulePostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScheduleInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
index 82fea02cca5..39275f8f959 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostResponse> PostAsGetSchedulePostResponseAsync(global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.Calendar.GetSchedule.GetScheduleResponse> PostAsync(global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleResponse.cs
index ac4e7887f40..4039bd2b13b 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendar/GetSchedule/GetScheduleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetScheduleResponse : global::Microsoft.Graph.Me.Calendar.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendar.GetSchedule.GetScheduleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendar.GetSchedule.GetScheduleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/CalendarGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/CalendarGroupsRequestBuilder.cs
index 9e33965f10a..107d68b81d2 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/CalendarGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/CalendarGroupsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CalendarGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.CalendarGroup> PostAsync(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs
index 726c4ff89c5..b7e909c234e 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarGroup> PatchAsync(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs
index 2aa3ec22b39..ffb1c0c62a8 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CalendarsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Calendar> PostAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
index e07f5749d9c..91072d488eb 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AllowedCalendarSharingRolesWithUserGetResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
index 310d1ce8954..76153fee883 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
@@ -20,7 +20,7 @@ public partial class AllowedCalendarSharingRolesWithUserResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs
index c6000d4e3ed..4e263456f1e 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs
@@ -137,7 +137,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Calendar> PatchAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -198,7 +198,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
index 7ee0d6eee99..af121004f89 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarPermissionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PostAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
index f1c163177b3..10f0f3f8c46 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PatchAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
index 2d986bd2737..ec7b709898a 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
index 41371f42f2d..c50be80df4d 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.CalendarGroups.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
index 2c7e01087d7..c2c4b9fea5a 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
index 7e64062bb9a..1428253493f 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.CalendarGroups.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs
index 3d832859e58..a9f8770b100 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs
@@ -99,7 +99,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
index 602dd6b6c84..8f67c1becab 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
index 883c6d791dd..41d52d39601 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calen
         public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index ed26d96a6f1..468ced5ff8a 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 0eadf33eb9b..b0f04561c4e 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 7ca589d999b..b527ec89461 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
index 323a4d6891c..2fa3f27c72c 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
index a8aa94fd715..6d3b9ef84f3 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calen
         public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
index 3ea478b1458..bf1cadc6358 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
index 2812bacab8c..9ffbe815629 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calen
         public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
index c8466ca2e2e..bd625450360 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index 2873cef1fdb..3866ab1cfe3 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 4bbe78bac17..0818a17bd3b 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
index daedf634bf2..27812a9e82f 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
index 11bf5f16434..6d9107023fa 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calen
         public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
index 20f2215161b..8355dbb580e 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
index f9615e854b4..cf0175640b5 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.CalendarGroups.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 277721e2cbe..6377ff099c0 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index 3a1457966f0..49672c7a8bc 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calen
         public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index d8613a9c17c..f3e6200e34e 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index f51ed1d787b..77a99dc4607 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calen
         public async Task PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
index 536b2f7a563..45bc9d3d931 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
@@ -91,7 +91,7 @@ public GetSchedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("AvailabilityViewInterval", AvailabilityViewInterval);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("EndTime", EndTime);
             writer.WriteCollectionOfPrimitiveValues<string>("Schedules", Schedules);
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
index bfcd3355175..d24e092e7c3 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSchedulePostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScheduleInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
index 8b7107dfad9..d2f3e4d18dc 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse> PostAsGetSchedulePostResponseAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetScheduleResponse> PostAsync(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
index b4c7a518611..7ae93941118 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetScheduleResponse : global::Microsoft.Graph.Me.CalendarGr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetScheduleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarGroups.Item.Calendars.Item.GetSchedule.GetScheduleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaGetResponse.cs
index b2655d6c761..1976be1cf19 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaResponse.cs
index 37fbe161022..6d39acdaa08 100644
--- a/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.CalendarView.Del
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/CalendarsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/CalendarsRequestBuilder.cs
index afafd850627..c7ad292ae06 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/CalendarsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/CalendarsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CalendarsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Calendar> PostAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
index f9b5e1530bc..9b545532563 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AllowedCalendarSharingRolesWithUserGetResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
index 7f48f0d228f..f5147b89553 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
@@ -20,7 +20,7 @@ public partial class AllowedCalendarSharingRolesWithUserResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarItemRequestBuilder.cs
index 9861a772838..7b8c1c7510e 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarItemRequestBuilder.cs
@@ -137,7 +137,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Calendar> PatchAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -198,7 +198,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
index ee3f047f5f4..8fe3dadd52b 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarPermissionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PostAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
index e5ecf538e43..1eb4a49a6d3 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PatchAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
index cd7089bb027..d707683068f 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
index 1722dfe26ad..44e02625f97 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Calendars.Item.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaGetResponse.cs
index 852511b58fd..96d2ecbf882 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaResponse.cs
index 78a6f6d6cd7..2cc4a704539 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Calendars.Item.E
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/EventsRequestBuilder.cs
index 2fc3d84333d..ed1b4d6a610 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/EventsRequestBuilder.cs
@@ -100,7 +100,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
index 8aaa00f0cc2..ba57f94d521 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
index 3264b59eadb..c6461ff9ec6 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Ite
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index c6d3d71bffa..6ea0f2b3a53 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 41e6cdf3265..d04aa06fe5b 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 000890e5ff1..127f158ba66 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
index f0ac00002b9..2e035c9b636 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
index 37b6a242bb1..851d1cb77e5 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Ite
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
index 66476510254..2d77a8cbe01 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
index 019e68d02f3..65a2cbcec34 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Ite
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
index dca10677c72..eeab898bfc2 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index bb3aeba9886..bf820b0437c 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 8878553bff0..65fa2f68ad4 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
index 50ed42584e7..2a86b9f007b 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
index 7bf16764ecd..15e5476f4ec 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Ite
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
index 2252fee97ae..571a1c0d4c4 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
index add65554231..c4a48af8c35 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Calendars.Item.E
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 46821cda734..171a1dd7976 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index 4aa3614ede8..bb61332a294 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Ite
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index 015c78a5664..920da9c70d9 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index 22e25663f52..a968b0ef3aa 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Ite
         public async Task PostAsync(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
index 64cb1b3a152..0b981f8c62e 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
@@ -91,7 +91,7 @@ public GetSchedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("AvailabilityViewInterval", AvailabilityViewInterval);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("EndTime", EndTime);
             writer.WriteCollectionOfPrimitiveValues<string>("Schedules", Schedules);
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
index 10c00bcb06e..bec4355f4ad 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSchedulePostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScheduleInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
index 1b38074c627..dcc73c18bb3 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostResponse> PostAsGetSchedulePostResponseAsync(global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetScheduleResponse> PostAsync(global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ca
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleResponse.cs b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleResponse.cs
index 0063738b368..5b57ede2b08 100644
--- a/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Calendars/Item/GetSchedule/GetScheduleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetScheduleResponse : global::Microsoft.Graph.Me.Calendars.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetScheduleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Calendars.Item.GetSchedule.GetScheduleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordPostRequestBody.cs
index 31031b96118..208e564a42e 100644
--- a/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordPostRequestBody.cs
@@ -68,7 +68,7 @@ public ChangePasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ChangePassword.ChangePasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ChangePassword.ChangePasswordPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("currentPassword", CurrentPassword);
             writer.WriteStringValue("newPassword", NewPassword);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordRequestBuilder.cs
index 0863c639cda..c0e3ef3b2f1 100644
--- a/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ChangePassword/ChangePasswordRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.ChangePassword.ChangePass
         public async Task PostAsync(global::Microsoft.Graph.Me.ChangePassword.ChangePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.ChangePassword.ChangePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/ChatsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/ChatsRequestBuilder.cs
index b4457fc6651..6c34212a4b4 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/ChatsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/ChatsRequestBuilder.cs
@@ -105,7 +105,7 @@ public ChatsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Chat> PostAsync(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
index fa9885291e4..34b923b0ab0 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesResponse.cs
index 6f2eaa5f4c9..275713023d7 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Me.Chats.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index d8e65891690..890ecc82955 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index 295a8fd2e95..62efb7da7e6 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Me
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/ChatItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/ChatItemRequestBuilder.cs
index 1629f0223fc..0a60395761b 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/ChatItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/ChatItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Chat> PatchAsync(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
index af9bc854f2d..3d545c6ef86 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public HideForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.HideForUser.HideForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.HideForUser.HideForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
index d485b306696..3cf6a0ce494 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.HideForUser.Hi
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.HideForUser.HideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.HideForUser.HideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
index b12c2540432..d832c561ed5 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
index c90f1c42c14..a2d29721970 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
index aceaffe0cca..29122af668c 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
@@ -53,7 +53,7 @@ public UpgradePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
index 3d963a8ff9d..7f054729ef7 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.InstalledApps.
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
index cc625573ed7..2fc8dd50ec0 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageInfo> PatchAsync(global::Microsoft.Graph.Models.ChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
index 35e5772ba8b..02243d130c0 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public MarkChatReadForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
index 0fbca6dc78d..14aaf86a8bd 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.MarkChatReadFo
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
index b1b41ea009d..07b8d36c1c4 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
@@ -59,7 +59,7 @@ public MarkChatUnreadForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastMessageReadDateTime", LastMessageReadDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
index 49af9122071..bb668557189 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.MarkChatUnread
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostRequestBody.cs
index 6bd9018258a..0ffa1fd6599 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostResponse.cs
index a6e4a3b5cee..d4c07e8b21d 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddRequestBuilder.cs
index c9244e9b13c..9451a9638ae 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddResponse.cs
index 197861e7845..f0ae3108b51 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Me.Chats.Item.Members
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index ffa2ac0d4f0..010e0059e2b 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/MembersRequestBuilder.cs
index 0fba7e4f47b..ad98be50cde 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/MembersRequestBuilder.cs
@@ -106,7 +106,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostRequestBody.cs
index a0520bbb13e..0df11faa136 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostResponse.cs
index 0dab394ec7a..7c80c54b871 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
index 97e47220e3a..e9e9a1587d0 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveResponse.cs
index e5c0a9b91f5..a5847750e95 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Me.Chats.Item.Memb
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaGetResponse.cs
index e7744f46cd2..fc4e96dd5e1 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaResponse.cs
index dd53f9a8674..d898085af14 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Chats.Item.Messa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index 9025493f668..ffba6eea39d 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index a16939f2d06..9a82485cdca 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 3b310d29ad1..cf6f3e2d4ca 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 97159563225..735fb6e6d73 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 14e969bff53..0911ae5fc0d 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index d6710064986..10b04252c11 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Chats.Item.Messa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index f10d45dd246..1bd09f4eceb 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index f15cedbfef3..9897a6a6101 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index ca85e13a14f..934454ed975 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 346dd86569e..5e9ccbeeef1 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index 2c03a40c024..674180d0e90 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 3f715e50e47..7cbffc9a818 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index d1255eaf5c7..3c163bd1dc4 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 12e4604ebf6..5e2bf0e2413 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index e5cb452f5bd..30a089af708 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 3b8f8f2ea81..df938643c7d 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 1f68b5c904b..e601bab96e5 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 7773b648f5d..0a53c314e1b 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 29984e7c26c..274f0be8524 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/MessagesRequestBuilder.cs
index 3d4820cb0ad..5544d179a08 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 808559fc21d..87e8b475ad2 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index d3dd057f107..3a2162ccd5f 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
index 78fc9571969..4234345efaf 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PinnedChatMessageInfo> PatchAsync(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
index bcd10dd76f4..2c2c5c052ca 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PinnedMessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.PinnedChatMessageInfo> PostAsync(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index 3f4c0201d05..acf0167bb4b 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index 05e22f3bcba..85359ec6ed2 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.SendActivityNo
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index 1562685fe5d..dc207645a63 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/TabsRequestBuilder.cs
index bbe6eee14f7..49eaa270c7c 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
index 545e2c58ad2..fc4443390fb 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public UnhideForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
index b57795c7592..33967d597bf 100644
--- a/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.UnhideForUser.
         public async Task PostAsync(global::Microsoft.Graph.Me.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 07f5d72cf15..13b4807a83b 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 6cdd52af44f..45e35004e47 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 0dcaf394b61..7371a5e1e65 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsResponse.cs
index 78f75b96849..2827a44484d 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Me.Chec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index 8df39a33a91..e20d0781de3 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 6cd70d8b18a..e37f7825422 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 94556224293..c78beec38b4 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ch
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsResponse.cs
index d7e7285a2b7..6d98d5c76c2 100644
--- a/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Me.Che
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/CloudClipboard/CloudClipboardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CloudClipboard/CloudClipboardRequestBuilder.cs
index 72b7927e122..78061b1d58f 100644
--- a/src/Microsoft.Graph/Generated/Me/CloudClipboard/CloudClipboardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CloudClipboard/CloudClipboardRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudClipboardRoot> PatchAsync(global::Microsoft.Graph.Models.CloudClipboardRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudClipboardRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs
index 050b6672e9f..100b89f5074 100644
--- a/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudClipboardItem> PatchAsync(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/ItemsRequestBuilder.cs
index 64c0a627158..f31e8064a43 100644
--- a/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/CloudClipboard/Items/ItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.CloudClipboardItem> PostAsync(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/ContactFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/ContactFoldersRequestBuilder.cs
index ce1193c06d1..99e657d979a 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/ContactFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/ContactFoldersRequestBuilder.cs
@@ -101,7 +101,7 @@ public ContactFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PostAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaGetResponse.cs
index 59b05c9aa5f..ad6bb29e462 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContactFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaResponse.cs
index 74a72adfa31..482b7eaba80 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.ContactFolders.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
index 74516146e4b..fc3d8101a54 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
@@ -101,7 +101,7 @@ public ChildFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PostAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
index 3998da189fb..381b853a07c 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContactFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs
index 695c57c1440..1b1da1db78d 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.ContactFolders.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs
index e4e4c9df6f3..79a326d8e5a 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PatchAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs
index 86fc29e783b..48505ec5881 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs
@@ -99,7 +99,7 @@ public ContactsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Contact> PostAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs
index 6657cb5b0fd..37c17320bd4 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs
index a71fcad1686..36e4467d146 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.ContactFolders.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
index 6557ba42f7b..aa32f2cd570 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Contact> PatchAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
index 3055f09dd75..653298ca66d 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index bb25527e16b..6488dd0a6e9 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
index 8fd605ec604..b3207267de8 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
index f2bcc07a629..e6b67bea719 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ContactFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ContactFolderItemRequestBuilder.cs
index dade64f1671..f3e001ffa4c 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ContactFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/ContactFolderItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PatchAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs
index c855b82d636..da29cc701a4 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs
@@ -101,7 +101,7 @@ public ContactsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Contact> PostAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs
index 41dfcfc4a3d..9f8697c7683 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Item.Contacts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Item.Contacts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs
index 9cf2df55fff..a5dc2420f74 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.ContactFolders.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ContactFolders.Item.Contacts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ContactFolders.Item.Contacts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
index ae42b629bf5..244d9f5db04 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Contact> PatchAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
index 30ebd887339..a56cfff388e 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index d57eb3b0a81..a48d8b12c9d 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
index 46143977201..e445b71ccf4 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
index a21a4f67158..03dc02956ca 100644
--- a/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/ContactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Contacts/ContactsRequestBuilder.cs
index cd2a55f8c0d..eb89e2794a6 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/ContactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/ContactsRequestBuilder.cs
@@ -101,7 +101,7 @@ public ContactsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Contact> PostAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaGetResponse.cs
index 3ba85a63116..faea68fb440 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Contacts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Contacts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaResponse.cs
index 9d88d0ba468..5818cc46baf 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Contacts.Delta.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Contacts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Contacts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/Item/ContactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Contacts/Item/ContactItemRequestBuilder.cs
index ee5a232b358..7db9c18f0ac 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/Item/ContactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/Item/ContactItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Contact> PatchAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
index 77b4c6b70c8..9e85884290a 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 16d68b10b77..9768625d865 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/PhotoRequestBuilder.cs
index e0d45995e56..497289ed27d 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
index 846a3e773fd..d905cce1470 100644
--- a/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs
index cbb11136060..31e551fffbf 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ActivitiesContainer> PatchAsync(global::Microsoft.Graph.Models.ActivitiesContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ActivitiesContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs
index cca55324410..da1b8e33775 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ContentActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.ContentActivity> PostAsync(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs
index a5143222f4e..cea9b06dc72 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentActivity> PatchAsync(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
index 7ffebe3c2f8..0bec571ef64 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserDataSecurityAndGovernance> PatchAsync(global::Microsoft.Graph.Models.UserDataSecurityAndGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserDataSecurityAndGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs
index 8ec28b7afd2..bdfe5dabd54 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public ProcessContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ProcessContentRequest>("contentToProcess", ContentToProcess);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs
index 2445443a477..c59ab4e26bc 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs
@@ -52,7 +52,7 @@ public ProcessContentRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ProcessContentResponse> PostAsync(global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Da
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
index 3c7d9f8837f..cdcfc4436ff 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
@@ -97,7 +97,7 @@ public ComputePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserActivityTypes>("activities", Activities);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceMetadata>("deviceMetadata", DeviceMetadata);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IntegratedApplicationMetadata>("integratedAppMetadata", IntegratedAppMetadata);
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
index 2dc781c8a50..c401adbee88 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
@@ -36,7 +36,7 @@ public partial class ComputePostResponse : global::Microsoft.Graph.Models.BaseCo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PolicyUserScope>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
index bdc9dbd22b7..1ade7df5150 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
@@ -50,7 +50,7 @@ public ComputeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse> PostAsComputePostResponseAsync(global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public ComputeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse> PostAsync(global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Da
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
index a95e2da67f7..e399e127665 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
@@ -20,7 +20,7 @@ public partial class ComputeResponse : global::Microsoft.Graph.Me.DataSecurityAn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
index 6a0f27485f8..d373560b4ed 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserProtectionScopeContainer> PatchAsync(global::Microsoft.Graph.Models.UserProtectionScopeContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserProtectionScopeContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
index 5d1bf55ecff..a0ea292cb0a 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
@@ -101,7 +101,7 @@ public ComputeRightsAndInheritancePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("delegatedUserEmail", DelegatedUserEmail);
             writer.WriteStringValue("locale", Locale);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectedContent>("protectedContents", ProtectedContents);
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
index 28bf2e9d875..7f0976a44da 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
@@ -52,7 +52,7 @@ public ComputeRightsAndInheritanceRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult> PostAsync(global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Da
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
index 5a304790722..8f04074a0e2 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PatchAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
index fff6bd4c353..ac20c16e90b 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
@@ -101,7 +101,7 @@ public ComputeRightsAndInheritancePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("delegatedUserEmail", DelegatedUserEmail);
             writer.WriteStringValue("locale", Locale);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectedContent>("protectedContents", ProtectedContents);
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
index 2694c659225..2521514d09c 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
@@ -52,7 +52,7 @@ public ComputeRightsAndInheritanceRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult> PostAsync(global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Da
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
index ec9d6185ae6..84a73152ca7 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PatchAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
index e27831e3640..eb429991371 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
@@ -114,7 +114,7 @@ public SublabelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PostAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
index ee32faf5488..2b1fe3dd67b 100644
--- a/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
@@ -114,7 +114,7 @@ public SensitivityLabelsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PostAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs
index 01ce9bf972f..ff69c1a1c1f 100644
--- a/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceManagementTroubleshootingEventsRequestBuilder(string rawUrl, IReque
         public async Task<global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent> PostAsync(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
index 1f3d64b0cae..e5a28c2b729 100644
--- a/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent> PatchAsync(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/EmployeeExperience/EmployeeExperienceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
index 7d755bc0acd..e8ae3a6bd7b 100644
--- a/src/Microsoft.Graph/Generated/Me/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
@@ -113,7 +113,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EmployeeExperienceUser> PatchAsync(global::Microsoft.Graph.Models.EmployeeExperienceUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -174,7 +174,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EmployeeExperienceUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaGetResponse.cs
index 84934a1473d..f90c1d30613 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaResponse.cs
index 8ad0cd80104..10a00e4ee7c 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Events.Delta.Del
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/EventsRequestBuilder.cs
index 992e8d73a7e..a1ad9c97d4d 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/EventsRequestBuilder.cs
@@ -101,7 +101,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptPostRequestBody.cs
index 6ba9744fb77..19902f45a31 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptRequestBuilder.cs
index 007967d0e89..28af411b3dd 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Accept.Accept
         public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ev
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index 4c179f68758..5c625c68f90 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -84,8 +84,8 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.AttachmentCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.AttachmentCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Use this API to add an attachment to an existing event. This operation limits the size of the attachment you can add to under 3 MB. If an organizer adds an attachment to a meeting event, the organizer can subsequently update the event to send the attachment and update the event for each attendee as well.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/event-post-attachments?view=graph-rest-1.0" />
+        /// Use this API to create a new Attachment. An attachment can be one of the following types: All these types of attachment resources are derived from the attachmentresource.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/eventmessage-post-attachments?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.Attachment"/></returns>
         /// <param name="body">The request body</param>
@@ -101,7 +101,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Use this API to add an attachment to an existing event. This operation limits the size of the attachment you can add to under 3 MB. If an organizer adds an attachment to a meeting event, the organizer can subsequently update the event to send the attachment and update the event for each attendee as well.
+        /// Use this API to create a new Attachment. An attachment can be one of the following types: All these types of attachment resources are derived from the attachmentresource.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 21f62f82465..f06b45d6d68 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index b8a1d8b0b25..8ec5ec58a80 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ev
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelPostRequestBody.cs
index 2c5e8ced0c0..2273b311584 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelRequestBuilder.cs
index bd4da95a101..542e92fa8b9 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Cancel.Cancel
         public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ev
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclinePostRequestBody.cs
index c03392d4644..8c84924c78d 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclineRequestBuilder.cs
index c053113bc49..f900eed21e6 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Decline.Decli
         public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ev
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/EventItemRequestBuilder.cs
index 757c2e4e475..8652d156069 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/EventItemRequestBuilder.cs
@@ -171,7 +171,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -232,7 +232,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index b33fc61187c..9c59f78e968 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index ac0c74cb993..3c029ff6467 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardPostRequestBody.cs
index 4279a5d47a8..4fc85a77f35 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardRequestBuilder.cs
index 737763676ac..5ebef11b7e5 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Forward.Forwa
         public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ev
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaGetResponse.cs
index 7d39b10faed..d93f30a4b55 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaResponse.cs
index 0ff870f4d24..8c0d242b029 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Events.Item.Inst
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 3f17d6cc33a..7c20c2c44dc 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index 7d885664961..408536df2de 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.SnoozeReminde
         public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ev
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index dae67a6a627..83a85edb23b 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index cd3fa52ea7f..faed0a4bc68 100644
--- a/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.TentativelyAc
         public async Task PostAsync(global::Microsoft.Graph.Me.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ev
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataPostRequestBody.cs
index 08980a8ef88..07bb09588ae 100644
--- a/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataPostRequestBody.cs
@@ -52,7 +52,7 @@ public ExportPersonalDataPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ExportPersonalData.ExportPersonalDataPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ExportPersonalData.ExportPersonalDataPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("storageLocation", StorageLocation);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataRequestBuilder.cs
index 550bb98c501..d442dec4083 100644
--- a/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ExportPersonalData/ExportPersonalDataRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.ExportPersonalData.Export
         public async Task PostAsync(global::Microsoft.Graph.Me.ExportPersonalData.ExportPersonalDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ex
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.ExportPersonalData.ExportPersonalDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Extensions/ExtensionsRequestBuilder.cs
index 4a49dc585b3..a89d2f30a03 100644
--- a/src/Microsoft.Graph/Generated/Me/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Extensions/Item/ExtensionItemRequestBuilder.cs
index a5fb5daec89..071dd29ee0f 100644
--- a/src/Microsoft.Graph/Generated/Me/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs
index c34aff29234..295f584ee8b 100644
--- a/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs
@@ -115,7 +115,7 @@ public FindMeetingTimesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.FindMeetingTimes.FindMeetingTimesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.FindMeetingTimes.FindMeetingTimesPostRequestBody();
         }
         /// <summary>
@@ -142,7 +142,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeBase>("attendees", Attendees);
             writer.WriteBoolValue("isOrganizerOptional", IsOrganizerOptional);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.LocationConstraint>("locationConstraint", LocationConstraint);
diff --git a/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs
index ff0bfa14152..28518768d99 100644
--- a/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs
@@ -52,7 +52,7 @@ public FindMeetingTimesRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.MeetingTimeSuggestionsResult> PostAsync(global::Microsoft.Graph.Me.FindMeetingTimes.FindMeetingTimesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Fi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.FindMeetingTimes.FindMeetingTimesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostRequestBody.cs
index c77d3d2a49c..289e90276b0 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.FollowedSites.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.FollowedSites.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostResponse.cs
index 949f75704ea..cbced1b033c 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.FollowedSites.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.FollowedSites.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddRequestBuilder.cs
index 50499f0a793..fbdfc791c3b 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.FollowedSites.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Me.FollowedSites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.FollowedSites.Add.AddResponse> PostAsync(global::Microsoft.Graph.Me.FollowedSites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Fo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.FollowedSites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddResponse.cs
index c8ac8f9d724..01c0099df72 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Me.FollowedSites.Add.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.FollowedSites.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.FollowedSites.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostRequestBody.cs
index 9ad9515c99a..baeac240443 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostResponse.cs
index 8b3bd766c95..b679515445a 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveRequestBuilder.cs
index 54c818cd2d0..ab91f5eea74 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.FollowedSites.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Fo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.FollowedSites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveResponse.cs
index 15cbce63e04..d9313162566 100644
--- a/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/FollowedSites/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Me.FollowedSites.R
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.FollowedSites.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.FollowedSites.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostRequestBody.cs
index 0195263cb4c..b6a990a84cd 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostRequestBody.cs
@@ -59,7 +59,7 @@ public GetMailTipsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("EmailAddresses", EmailAddresses);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MailTipsType>("MailTipsOptions", MailTipsOptions);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostResponse.cs b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostResponse.cs
index 14978f09ab2..29b80bf9875 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetMailTipsPostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailTips>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsRequestBuilder.cs
index cd21ece687a..61d91bca336 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMailTipsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostResponse> PostAsGetMailTipsPostResponseAsync(global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMailTipsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Me.GetMailTips.GetMailTipsResponse> PostAsync(global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ge
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.GetMailTips.GetMailTipsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsResponse.cs b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsResponse.cs
index 12d1c930532..7bdf84437a7 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMailTips/GetMailTipsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMailTipsResponse : global::Microsoft.Graph.Me.GetMailTip
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetMailTips.GetMailTipsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMailTips.GetMailTipsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs
index db20a880cda..bc9a4a7ddd4 100644
--- a/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetManagedAppDiagnosticStatusesGetResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppDiagnosticStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs b/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs
index 0f9fa466d00..1a9d7478216 100644
--- a/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetManagedAppDiagnosticStatusesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs
index c779d6f423f..bbf84c8a6b2 100644
--- a/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetManagedAppPoliciesGetResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetManagedAppPolicies.GetManagedAppPoliciesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetManagedAppPolicies.GetManagedAppPoliciesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs b/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs
index 6edfbf48a49..b14ec5ea1b0 100644
--- a/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetManagedAppPoliciesResponse : global::Microsoft.Graph.Me.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetManagedAppPolicies.GetManagedAppPoliciesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetManagedAppPolicies.GetManagedAppPoliciesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs b/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs
index 494145f0ae8..07cd6f2c1e4 100644
--- a/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs b/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs
index 1093c7d6440..7368f97ae35 100644
--- a/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs
@@ -20,7 +20,7 @@ public partial class GetManagedDevicesWithAppFailuresResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index c6add4bac49..d22ac717c86 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 95ba4ee6286..b17ab4db8cd 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index d3f856acaab..f3b0674e416 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ge
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsResponse.cs
index 3e385283a74..6362f0dbe7d 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Me.GetMem
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 963ef639c14..523027cc455 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostResponse.cs
index e30fd8d43e4..a2d2c1c33fc 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 6689baa1573..67aadfb3d60 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ge
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsResponse.cs
index d55291aa754..467ac33d8e5 100644
--- a/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Me.GetMe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/InferenceClassification/InferenceClassificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/InferenceClassification/InferenceClassificationRequestBuilder.cs
index d4d4e3f1e0d..24aeaead91f 100644
--- a/src/Microsoft.Graph/Generated/Me/InferenceClassification/InferenceClassificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/InferenceClassification/InferenceClassificationRequestBuilder.cs
@@ -80,7 +80,7 @@ public InferenceClassificationRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.InferenceClassification> PatchAsync(global::Microsoft.Graph.Models.InferenceClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InferenceClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs
index 390dd922487..ae6473370a0 100644
--- a/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.InferenceClassificationOverride> PatchAsync(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/OverridesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/OverridesRequestBuilder.cs
index 3fbfa0be65a..0c0432c5971 100644
--- a/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/OverridesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/InferenceClassification/Overrides/OverridesRequestBuilder.cs
@@ -95,7 +95,7 @@ public OverridesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.InferenceClassificationOverride> PostAsync(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Insights/InsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Insights/InsightsRequestBuilder.cs
index 19a01c42cf0..bb5af3fe75a 100644
--- a/src/Microsoft.Graph/Generated/Me/Insights/InsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Insights/InsightsRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemInsights> PatchAsync(global::Microsoft.Graph.Models.ItemInsights body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemInsights body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs
index da214a7d420..597fdf041d1 100644
--- a/src/Microsoft.Graph/Generated/Me/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedInsight> PatchAsync(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Insights/Shared/SharedRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Insights/Shared/SharedRequestBuilder.cs
index 376574048c6..77103f8d90a 100644
--- a/src/Microsoft.Graph/Generated/Me/Insights/Shared/SharedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Insights/Shared/SharedRequestBuilder.cs
@@ -94,7 +94,7 @@ public SharedRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.SharedInsight> PostAsync(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Insights/Trending/Item/TrendingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Insights/Trending/Item/TrendingItemRequestBuilder.cs
index 09a70598683..af7362a47bf 100644
--- a/src/Microsoft.Graph/Generated/Me/Insights/Trending/Item/TrendingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Insights/Trending/Item/TrendingItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Trending> PatchAsync(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Insights/Trending/TrendingRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Insights/Trending/TrendingRequestBuilder.cs
index 991fa8d9687..503c26398b6 100644
--- a/src/Microsoft.Graph/Generated/Me/Insights/Trending/TrendingRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Insights/Trending/TrendingRequestBuilder.cs
@@ -94,7 +94,7 @@ public TrendingRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Trending> PostAsync(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Insights/Used/Item/UsedInsightItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Insights/Used/Item/UsedInsightItemRequestBuilder.cs
index e5b756f1693..8b8ab6c29d5 100644
--- a/src/Microsoft.Graph/Generated/Me/Insights/Used/Item/UsedInsightItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Insights/Used/Item/UsedInsightItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UsedInsight> PatchAsync(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Insights/Used/UsedRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Insights/Used/UsedRequestBuilder.cs
index fa6b4a5146b..4d61581a9b6 100644
--- a/src/Microsoft.Graph/Generated/Me/Insights/Used/UsedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Insights/Used/UsedRequestBuilder.cs
@@ -94,7 +94,7 @@ public UsedRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.UsedInsight> PostAsync(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
index 0f41aa2478b..c5561213725 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs
index 3b88bdce150..2a226d17ce5 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Me.JoinedT
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs
index 95a8e46f8a9..b94c870b48d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs
index 74ef3a68349..d78fef4b52b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Archive.
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs
index 76cb0eb5ddb..78234e5c1c4 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs
@@ -105,7 +105,7 @@ public ChannelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Channel> PostAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
index 45c6ee0ce73..5dd31e99038 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
index fa684d5ba73..4e0416b26e8 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Me.JoinedT
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index 83d280ec420..6345e366983 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index bf0a6c7e3f9..d7f5a912ffc 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Me
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
index 98176f7c390..a21e527f97d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
index 521a7260425..f6f37e1cbc8 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
index 840eaf371bb..cbd36454028 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
index 927b87dacbe..2c1c4dde52c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Me.JoinedTeams.Item.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
index 3c8db0397eb..19dbcfd6d44 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index 90a6627b510..e3c6af9e869 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
index 34ba38af86f..2f53be4e8c0 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
index 3afc061ddf2..3555c85fda5 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
index 6ab7c1bbf78..4af34c1c21c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
index 6e99c8b1663..06deb1ef59c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Me.JoinedTeams.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
index a4836b03449..89b20893988 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
index f3f68be06ec..1f63bec42df 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
index 9759dedcd20..6e39ea83812 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index e2338bb0bb1..ce3fcd881df 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index 167f9ba683a..60b5051c396 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
index 8e689639096..7bf3fd0f8d7 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
index cc54f9060d8..b47329a5fef 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
index 32d5eee3d21..5dc35977121 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
index 183f741b43d..2a9fc9cfa2d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
index 7c1e85ff0ab..e3106f16d49 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Me.JoinedTeams.Item.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index d9a6344d8d0..87af7d77518 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
index c6f0c55e395..589b760f242 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
index 08a50c6d48c..b0504722040 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
index 7e20afa1c17..67bb021b255 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
index 308ecc2d9ae..0b73917a3e9 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
index eeac7022dbe..d59f77d75d2 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Me.JoinedTeams.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
index a10dfa7f052..1404ea1b420 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
index f89e80e3286..b299c2bf961 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.JoinedTeams.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index 9cc5d0e0ad8..3fdba90742c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 6c996bb3d48..028636c3551 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index c58d69b0aeb..80817e5771d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 54a94663a1b..8fc46c459bd 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index d59b914e154..764cd84ebba 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index 82a79d75be1..a4048b46420 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.JoinedTeams.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index f9731e93f1e..f40f56cda2c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index b0fefc5f521..d08527450d7 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index a9be2cd3917..8f5a697a0a8 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index e85c1518985..52df0df8252 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index 825b5da11dc..f66777ca4dc 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index fe835721482..6ecd986b2d9 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 75ca72c2aac..25dcdf99f93 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index d658c689f2f..b1a04fda275 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index 077fe7f0d9e..b569fd03923 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 63682b23d61..d2c785c8d4c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 3b27ea290af..8fb59b34e16 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 175af635689..2714af1b754 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index f3b967c4348..9143b242f68 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
index eb567f60dae..3e0c8d1ebc4 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index f328955e55a..028a967090d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index 9bfc9b3d889..765651b411e 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index 62c9cd6595c..f72461bf346 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
index ac617671eff..4f5485530c1 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/ClonePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/ClonePostRequestBody.cs
index 9fd07956e43..af76d8e8893 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/ClonePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/ClonePostRequestBody.cs
@@ -113,7 +113,7 @@ public ClonePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Clone.ClonePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Clone.ClonePostRequestBody();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("classification", Classification);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/CloneRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/CloneRequestBuilder.cs
index c6154b87e21..8e45de10e88 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/CloneRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Clone/CloneRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Clone.Cl
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
index f8585b16acf..37f3e20c3fb 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
index f1ae7f6b38d..ded78be328d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
index 8606534f138..96e7d1187f6 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
@@ -53,7 +53,7 @@ public UpgradePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
index c7bd52a6d26..19d702b1672 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Installe
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs
index 9aedc7382e4..24d64e717f4 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostResponse.cs
index 505111a18f6..da70b66bd25 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs
index c5fd4330b6f..2d97f0cfc8a 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddResponse.cs
index 8dbc3f45711..cb7a8a784b0 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Me.JoinedTeams.Item.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index a2fce3c0b25..1db461b0856 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/MembersRequestBuilder.cs
index ee94cde2bcf..c4fffe1ea05 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs
index 6680f054004..5aa103ef2da 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs
index a759def05f9..158a34a2fa9 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs
index 8d3055642ad..1f2d32905a1 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveResponse.cs
index b6da2630f95..ee1cdfbaaab 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Me.JoinedTeams.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
index 0769521579a..734ede1642e 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PatchAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs
index bec2812e769..838564c8085 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PostAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index c4ca4a2c654..6f49cec1209 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index da7c43c43a5..4cff140b99a 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs
index a98c4cb0f02..4b973c19e2e 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs
index 1bebd9c1adb..754f56fc976 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
index 439e02b2f1a..8585586b23b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
index 1cb06ff87df..6587b476126 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
index d12870210fa..984e7ec13a3 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
index 5b9ddab76e5..063b3070d12 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Me.JoinedTeams.Item.P
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
index 6af69ea3957..b2a66a0df0b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index 23d4f5e72cc..a852e4c7858 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
index ca19dade5af..ce710a1a480 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
index c9b22cc0e70..4ff99caac1d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
index aa1df3f51f7..3fd4ed649d6 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
index f34852fda0f..4b42e5dda4f 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Me.JoinedTeams.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
index 34ecd4f1c4f..b84822f3cf9 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
index 6b00f7367e4..d57e80d7bf7 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryC
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index e21e87bd33a..17a9510cab0 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index 9bfcb253587..b6fc9a5865a 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
index a7e0d1e16ba..093b67a4f28 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
index f8086d7134e..5236fa6895d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
index 5fa1b8a9cc8..d765d140f82 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
index cc5e9b04f88..94ca21a5be0 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs
index 5a6bf9b653f..6911234166f 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Me.JoinedTeams.Item.P
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
index e74c49c54c5..fc2dfd93d54 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
index 41ce0bcc88d..b5ecc9a3ec3 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
index 33035bebea0..e5f96891d9c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
index d6eff2f74e8..5465f0fb2e7 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
index a9c8a8d797e..04fb94ecd6b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
index a483d37e3ed..89776d8dd7a 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Me.JoinedTeams.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
index e786032d5e6..79d14a5f4a0 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
index 33f75579f4c..b72536553d9 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.JoinedTeams.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
index 32ab9300d85..867e8d816aa 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index f9503c3726d..c46968d213d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 58926689daf..1e4f3dcf715 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 61c9c299a67..e557809fc1d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 27f7d986d0d..28c1ef0c098 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
index ab77a5e735d..78af8d0a0d3 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.JoinedTeams.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index d5d1b3859a5..9a74129f7f1 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index b6e2454d5a6..582fdda8bdc 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index e8bdf8dbd31..26ec96faa1e 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index b614d5ce1aa..c4d166919bd 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index b3d89400029..5d82b6ae35b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 3d1f304723f..b4ccb1d0600 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryC
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 254d7442a2a..bcd00b8744d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index e6b5bba9f69..13cbce6cf4c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryC
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
index 23fee176427..5ce325cb84c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 32aebdc071d..b3699394e70 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index d2927047995..dd03684c809 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryC
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 94700a58a49..b88e3c62933 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 15f2bc0c01f..0f6763bb3f4 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryC
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
index 51d6b15ab9a..ef1183b5ad3 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
index d945c5d7db2..989194280f0 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index e023bbf4996..ebef5c67f6e 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index 9f416efe53b..81d4dff335b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
index a65d9378660..355f72ad8d0 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
index 7766e2f6faf..cf01e897a3d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
index 217887a2265..b3e52f1483c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DayNotesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.DayNote> PostAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
index a212642e880..d5c0ce6d6ad 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DayNote> PatchAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
index f82faf415fe..699e64ec77a 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PatchAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
index 140472505a3..0fc85ed1c56 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OfferShiftRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PostAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
index b76f8cec866..bc5782fe92c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PatchAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
index 27862a4dfd8..a5e29961461 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OpenShiftChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PostAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
index eb35bb1dda2..57cb197eb9d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShift> PatchAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
index 8d25bbc4a3c..20e12c75ae2 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OpenShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OpenShift> PostAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs
index 4c0cfc24778..db69eb46ce1 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Schedule> PutAsync(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
index 3f4ee0d9944..049d80786b5 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PatchAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
index 2f9c77493dc..78385e49c19 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SchedulingGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PostAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs
index aebad62a78a..83644a6378d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs
@@ -54,7 +54,7 @@ public SharePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.Share.SharePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.Share.SharePostRequestBody();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteBoolValue("notifyTeam", NotifyTeam);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs
index 0932ceb4135..5c51def8edf 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
index ccb3ec9a0a1..dbb6f17c2ba 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Shift> PatchAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
index 76ef2d85e41..9471e3c300c 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Shift> PostAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
index 122bb41e929..40166deec59 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PatchAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
index 47f886100c9..230ea242e13 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SwapShiftsChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PostAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
index cd5869b0f23..01c66e07693 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
@@ -75,7 +75,7 @@ public ClockInPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteStringValue("onBehalfOfUserId", OnBehalfOfUserId);
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
index b151529c614..73b09b465bb 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
@@ -52,7 +52,7 @@ public ClockInRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
index d3a6a210a72..d6b5ea54d91 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
@@ -59,7 +59,7 @@ public ClockOutPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
index d8b14dda22f..c06f3d98cff 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
@@ -51,7 +51,7 @@ public ClockOutRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
index e776adea52f..59cd3e5b6b8 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public EndBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
index a7b0c67fb1c..2a179e62941 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public EndBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
index d380f0b7c2f..b1fabb7025d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public StartBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
index aa453250567..00c4328257d 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public StartBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
index 22343b2d11c..54bc1c3fe84 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeCard> PatchAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
index e44b849ebf3..c061058d40b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
@@ -99,7 +99,7 @@ public TimeCardsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
index 3a9f68f2aa8..109ba3b1cb3 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PatchAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
index 3a942864d79..6eae7bcf00b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimeOffReasonsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PostAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
index e368e40dd51..6a3e40416ec 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PatchAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
index df5607b06bc..f4ee0495a8b 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimeOffRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PostAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
index fff6b88f878..c5500537c4a 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOff> PatchAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
index 55c33f40847..82448d88549 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimesOffRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeOff> PostAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index 828ca3b87df..b7626a92103 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index 1d9e0902b9b..298d4f2fada 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.SendActi
         public async Task PostAsync(global::Microsoft.Graph.Me.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Jo
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
index 7244299d5d2..cab0fc7ab81 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PatchAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs
index 775bd3a1c58..2b986eb8404 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs
@@ -93,7 +93,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PostAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
index a8d2eb07663..d522a803860 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PatchAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/TagsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/TagsRequestBuilder.cs
index 4092b138316..46bdb222563 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/TagsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/Tags/TagsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TagsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PostAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/TeamItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/TeamItemRequestBuilder.cs
index 73ba1baaa9b..c7138648229 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/TeamItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/Item/TeamItemRequestBuilder.cs
@@ -204,7 +204,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Team> PatchAsync(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -265,7 +265,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/JoinedTeams/JoinedTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/JoinedTeams/JoinedTeamsRequestBuilder.cs
index 295a76f1fb0..f46ee716ac9 100644
--- a/src/Microsoft.Graph/Generated/Me/JoinedTeams/JoinedTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/JoinedTeams/JoinedTeamsRequestBuilder.cs
@@ -100,7 +100,7 @@ public JoinedTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Team> PostAsync(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs
index c0d9da0896d..20494cb474b 100644
--- a/src/Microsoft.Graph/Generated/Me/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LicenseDetails> PatchAsync(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/LicenseDetails/LicenseDetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/LicenseDetails/LicenseDetailsRequestBuilder.cs
index 5fbf10691a5..0bbb24d4836 100644
--- a/src/Microsoft.Graph/Generated/Me/LicenseDetails/LicenseDetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/LicenseDetails/LicenseDetailsRequestBuilder.cs
@@ -100,7 +100,7 @@ public LicenseDetailsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.LicenseDetails> PostAsync(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaGetResponse.cs
index 699900bae53..2a3c20cc306 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaResponse.cs
index 3a9f6b4b246..0e85f6391b7 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.MailFolders.Delt
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
index e76565a8a5e..c9bfff94079 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
@@ -84,8 +84,8 @@ public ChildFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MailFolderCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.MailFolderCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Use this API to create a new child mailFolder. If you intend a new folder to be hidden, you must set the isHidden property to true on creation.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/mailfolder-post-childfolders?view=graph-rest-1.0" />
+        /// Create a new mailSearchFolder in the specified user&apos;s mailbox.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/mailsearchfolder-post?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MailFolder"/></returns>
         /// <param name="body">The request body</param>
@@ -101,7 +101,7 @@ public ChildFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Use this API to create a new child mailFolder. If you intend a new folder to be hidden, you must set the isHidden property to true on creation.
+        /// Create a new mailSearchFolder in the specified user&apos;s mailbox.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
index 2a0be9f9fde..d014e686f7f 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs
index 5340e0eeeb9..ee2801cc1fb 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.MailFolders.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs
index 13cb7919896..e3b2a9959d9 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs
index e3f3d9c82ba..06726ee5ab4 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs
index c31ed8df731..f9ce9a808b2 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailFolder> PatchAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
index d7bb0fa216a..6d17909a7e7 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MessageRule> PatchAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
index ee2a0fa964d..d242b7eb9ec 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MessageRulesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MessageRule> PostAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs
index 69ad8a466ca..81457fedae4 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Message>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs
index 4f75b22757c..28260fda815 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.MailFolders.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
index 33bd8b3e1c7..1861fa4fce3 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index f4a7c40cf4d..f08436159f2 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 22216b5a2ca..3dda49d520f 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
index 513ea95a0dc..374b4449913 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
index 616c71d1d87..e1d96ff673c 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
index 5c0bd54b7be..26e2fa23105 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public CreateForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
index 34cf5042c78..cead0ea51db 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateForwardRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
index e2576c7cf39..78dc3703c79 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
index 2548abe4bfe..472d87911f4 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
index 8327a740353..c01a645e4a1 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
index 2a1ac027232..264429cc6ee 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyAllRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
index 52fe62ee473..4e859c9ce64 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 561e49eb345..c1a0a18b744 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
index a78ab70367f..32d5ea41e55 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
index f27373c5d03..e3a03830506 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFol
         public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
index 3927683a856..f694a5cfd17 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
@@ -174,7 +174,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Message> PatchAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -235,7 +235,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
index 958c792ab4a..457f831b6a6 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
index 88540a1e684..101dea55ac5 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
index 36fd85b1ddf..209c558cacc 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
index 7b2efb0c4f5..90bc443baaf 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFol
         public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
index 1bb5a6a1e63..02ef6c35d57 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
index 37ad4260f8a..d0a313fc773 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFol
         public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
index 0d03f34f9d6..8765887f42f 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs
index 13822235ebe..45cad795a9e 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs
index 702a3b19210..cd95d310dfa 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs
index 03fdd47e122..cf4adcb5847 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyPostRequestBody.cs
index 1dee3ea3baa..76486a4702d 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyRequestBuilder.cs
index db18481e3b1..8a6bc969bac 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MailFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MailFolderItemRequestBuilder.cs
index fa2b5425f69..395f7f01ddc 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MailFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MailFolderItemRequestBuilder.cs
@@ -118,8 +118,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MailFolder>(requestInfo, global::Microsoft.Graph.Models.MailFolder.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of mailfolder object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/mailfolder-update?view=graph-rest-1.0" />
+        /// Update the writable properties of a mailSearchFolder object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/mailsearchfolder-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MailFolder"/></returns>
         /// <param name="body">The request body</param>
@@ -135,7 +135,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailFolder> PatchAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -182,7 +182,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of mailfolder object.
+        /// Update the writable properties of a mailSearchFolder object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -196,7 +196,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
index c6f9359f90f..29e044be7a4 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MessageRule> PatchAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
index d37ceab9669..cb003fc7336 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
@@ -95,7 +95,7 @@ public MessageRulesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MessageRule> PostAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs
index a4c2e8c7b71..71fd725e89a 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Message>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaResponse.cs
index 6a600385bc4..7f602e56cb9 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.MailFolders.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
index 768e0fd2188..0272187a883 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index ca884fbdcea..ad49bc5ade4 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 32880dc8154..990080adf2f 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
index b605b069ee9..2bf83b587bb 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
index 0275c69d4e0..05faa41f2b2 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
index f20b5737411..ab0755809d3 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public CreateForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
index efc5ea258bf..e18d7b18f1e 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateForwardRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
index 0d0824ad0c3..efc7cc276a4 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
index 00f0ed76010..254f5e6737e 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
index ef36b67d678..181adb9f6d1 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
index 3c825ff4897..0137c386b6a 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyAllRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
index 0013771b8e1..cd675560f11 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 4cefae011ad..1dc00586bee 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
index 061e158f25d..7fc29063b48 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
index 24f20174866..7e31093ff10 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages
         public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
index 6a4ff0ac3db..baf776b7dd1 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
@@ -174,7 +174,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Message> PatchAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -235,7 +235,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
index 54804c60c71..843da03a615 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
index 4e4d40f2229..5127f46e73f 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
index f4df813a4cb..810410c2d3e 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
index 6e3255a8139..9ecf56c8e62 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages
         public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
index 26a2b70ca6e..a620f07e3fc 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
index 4a5c0a79157..1987c9a2c00 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages
         public async Task PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
index a932613808f..8720c32a53a 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/MessagesRequestBuilder.cs
index d7e2fd4bfc5..d124547a3e5 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Messages/MessagesRequestBuilder.cs
@@ -101,7 +101,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MovePostRequestBody.cs
index 401ffd9c78e..0ec9393939f 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.MailFolders.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.MailFolders.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MoveRequestBuilder.cs
index 742fa195860..cf377be3a8a 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Me.MailFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.MailFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailFolders/MailFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailFolders/MailFoldersRequestBuilder.cs
index fe4581b4424..0c045708af4 100644
--- a/src/Microsoft.Graph/Generated/Me/MailFolders/MailFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailFolders/MailFoldersRequestBuilder.cs
@@ -101,7 +101,7 @@ public MailFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 96f2e65d613..4c77e52ec67 100644
--- a/src/Microsoft.Graph/Generated/Me/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -76,7 +76,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -118,7 +118,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
index 09f183c0d7d..807beea913e 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
@@ -42,7 +42,7 @@ public CleanWindowsDevicePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("keepUserData", KeepUserData);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
index 24b118ba1e5..dd5e5a4402e 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.Clean
         public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
index 87384c8f215..7fbe93a3a24 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeleteUserFromSharedAppleDevicePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
index ef1c3be9601..87d28ba1ad1 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.Delet
         public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
index efb107d7e45..f7ec4f0d3b0 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCategory> PatchAsync(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
index c84f67807c0..33eef5555e6 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
index 7a0fa850f38..81c31d25c25 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceCompliancePolicyStatesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyState> PostAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
index 0bfb201864b..f4686305f23 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyState> PatchAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
index ec4d283eb2a..df2b58b6f46 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceConfigurationStatesRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationState> PostAsync(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
index a1388299832..dac13f3fdc4 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationState> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
index 1c8dd5419ef..145d7d1d0be 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
@@ -52,7 +52,7 @@ public CreateDownloadUrlPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlPostResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
index 9a1d647560e..d09165ea492 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
@@ -20,7 +20,7 @@ public partial class CreateDownloadUrlResponse : global::Microsoft.Graph.Me.Mana
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
index e076c5523e4..61e88cbe8f7 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceLogCollectionResponse> PatchAsync(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
index 13f53b3695c..56ff3ae7445 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public LogCollectionRequestsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.DeviceLogCollectionResponse> PostAsync(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
index 459407f8da8..e64e9c7e446 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
@@ -240,7 +240,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDevice> PatchAsync(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -301,7 +301,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
index a08d4646e4a..db4da1aa873 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
@@ -53,7 +53,7 @@ public UpdateWindowsDeviceAccountPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UpdateWindowsDeviceAccountActionParameter>("updateWindowsDeviceAccountActionParameter", UpdateWindowsDeviceAccountActionParameter);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
index fb74ebcb8f5..187e69687e8 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.Updat
         public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
index 53c4d136a50..cb80a53df35 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
@@ -42,7 +42,7 @@ public WindowsDefenderScanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("quickScan", QuickScan);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
index 103700e13e5..e398e18d450 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.Windo
         public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
index 3f83a5fa632..7722666f74b 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
@@ -93,7 +93,7 @@ public DetectedMalwareStateRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.WindowsDeviceMalwareState> PostAsync(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
index 3bfb1a741fb..1d1a48f607e 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsDeviceMalwareState> PatchAsync(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
index 3110290ece3..eaa45226d45 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsProtectionState> PatchAsync(global::Microsoft.Graph.Models.WindowsProtectionState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsProtectionState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
index 27b572e28b4..014744f4f50 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
@@ -70,7 +70,7 @@ public WipePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.ManagedDevices.Item.Wipe.WipePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ManagedDevices.Item.Wipe.WipePostRequestBody();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("keepEnrollmentData", KeepEnrollmentData);
             writer.WriteBoolValue("keepUserData", KeepUserData);
             writer.WriteStringValue("macOsUnlockCode", MacOsUnlockCode);
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
index 01a77d2835c..ef4ffa2339a 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.Wipe.
         public async Task PostAsync(global::Microsoft.Graph.Me.ManagedDevices.Item.Wipe.WipePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Ma
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.ManagedDevices.Item.Wipe.WipePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ManagedDevices/ManagedDevicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ManagedDevices/ManagedDevicesRequestBuilder.cs
index 5f8838d1fb0..cc7ed8c5706 100644
--- a/src/Microsoft.Graph/Generated/Me/ManagedDevices/ManagedDevicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ManagedDevices/ManagedDevicesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ManagedDevicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ManagedDevice> PostAsync(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Manager/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Manager/Ref/RefRequestBuilder.cs
index 5aa74b4505a..b3d287f256d 100644
--- a/src/Microsoft.Graph/Generated/Me/Manager/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Manager/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/MeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/MeRequestBuilder.cs
index f8d666502bd..e508cc7c766 100644
--- a/src/Microsoft.Graph/Generated/Me/MeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/MeRequestBuilder.cs
@@ -494,8 +494,8 @@ public MeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         /// <param name="top">Usage: top={top}</param>
         public global::Microsoft.Graph.Me.ExportDeviceAndAppManagementDataWithSkipWithTop.ExportDeviceAndAppManagementDataWithSkipWithTopRequestBuilder ExportDeviceAndAppManagementDataWithSkipWithTop(int? skip, int? top)
         {
-            _ = skip ?? throw new ArgumentNullException(nameof(skip));
-            _ = top ?? throw new ArgumentNullException(nameof(top));
+            if(ReferenceEquals(skip, null)) throw new ArgumentNullException(nameof(skip));
+            if(ReferenceEquals(top, null)) throw new ArgumentNullException(nameof(top));
             return new global::Microsoft.Graph.Me.ExportDeviceAndAppManagementDataWithSkipWithTop.ExportDeviceAndAppManagementDataWithSkipWithTopRequestBuilder(PathParameters, RequestAdapter, skip, top);
         }
         /// <summary>
@@ -540,7 +540,7 @@ public MeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(re
         public async Task<global::Microsoft.Graph.Models.User> PatchAsync(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -594,7 +594,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaGetResponse.cs
index 5f1d8048bba..7730984c4ee 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Message>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaResponse.cs
index a97a891c8ae..8d25fb679d3 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Messages.Delta.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
index 0dd4bc918a6..3b53bead56b 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -60,8 +60,8 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         {
         }
         /// <summary>
-        /// Retrieve a list of attachment objects attached to a message.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/message-list-attachments?view=graph-rest-1.0" />
+        /// Retrieve a list of attachment objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/eventmessage-list-attachments?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.AttachmentCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -101,7 +101,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -110,7 +110,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.Attachment>(requestInfo, global::Microsoft.Graph.Models.Attachment.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Retrieve a list of attachment objects attached to a message.
+        /// Retrieve a list of attachment objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.Me.Messages.Item.Attachments.AttachmentsRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// Retrieve a list of attachment objects attached to a message.
+        /// Retrieve a list of attachment objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class AttachmentsRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index a9a7e3c4f09..63743047403 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 290ccb96c8b..ff8ed25b131 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyPostRequestBody.cs
index 47e13a5604b..e66951c73e4 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyRequestBuilder.cs
index 7193457fb4c..f0973fceb89 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
index 82fa50d7e12..48e43434c63 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public CreateForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.CreateForward.CreateForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.CreateForward.CreateForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
index 7e4c987aa99..c4834a2d659 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateForwardRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
index 9f5a251b48f..0d7b7707ed9 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.CreateReply.CreateReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.CreateReply.CreateReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
index f78ad81151b..edd8cd08036 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
index 5425a1d2987..699322af7bd 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
index 647fb5fec55..89f8207165d 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyAllRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
index 9394ab97c53..0e06b3b9c0b 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 872b5c370d2..ed3777915d7 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardPostRequestBody.cs
index ec2dd044feb..6af54e484a8 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardRequestBuilder.cs
index 7fb7f2601a3..487ce74dc5f 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Messages.Item.Forward.For
         public async Task PostAsync(global::Microsoft.Graph.Me.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/MessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/MessageItemRequestBuilder.cs
index 451fb1d382b..c43ce1e2586 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/MessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/MessageItemRequestBuilder.cs
@@ -113,8 +113,8 @@ public MessageItemRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         {
         }
         /// <summary>
-        /// Delete eventMessage.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/eventmessage-delete?view=graph-rest-1.0" />
+        /// Delete a message in the specified user&apos;s mailbox, or delete a relationship of the message.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/message-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -136,8 +136,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Get the properties and relationships of the eventMessage object. Apply the $expand parameter on the event navigation property to get the associated event in an attendee&apos;s calendar. Currently, this operation returns event message bodies in only HTML format.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/eventmessage-get?view=graph-rest-1.0" />
+        /// You can get a single resource instance expanded with a specific extended property, or a collection of resource instancesthat include extended properties matching a filter. Using the query parameter $expand allows you to get the specified resource instance expanded with a specific extendedproperty. Use a $filter and eq operator on the id property to specify the extended property. This is currently the only way to get the singleValueLegacyExtendedProperty object that represents an extended property. To get resource instances that have certain extended properties, use the $filter query parameter and apply an eq operatoron the id property. In addition, for numeric extended properties, apply one of the following operators on the value property:eq, ne,ge, gt, le, or lt. For string-typed extended properties, apply a contains, startswith, eq, or ne operator on value. The filter is applied to all instances of the resource in the signed-in user&apos;s mailbox. Filtering the string name (Name) in the id of an extended property is case-sensitive. Filtering the value property of an extendedproperty is case-insensitive. The following user resources are supported: As well as the following group resources: See Extended properties overview for more information about when to useopen extensions or extended properties, and how to specify extended properties.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/singlevaluelegacyextendedproperty-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.Message"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -160,8 +160,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.Message>(requestInfo, global::Microsoft.Graph.Models.Message.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of an eventMessage object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/eventmessage-update?view=graph-rest-1.0" />
+        /// Update the properties of a message object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/message-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.Message"/></returns>
         /// <param name="body">The request body</param>
@@ -177,7 +177,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Message> PatchAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -186,7 +186,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.Message>(requestInfo, global::Microsoft.Graph.Models.Message.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Delete eventMessage.
+        /// Delete a message in the specified user&apos;s mailbox, or delete a relationship of the message.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -205,7 +205,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Get the properties and relationships of the eventMessage object. Apply the $expand parameter on the event navigation property to get the associated event in an attendee&apos;s calendar. Currently, this operation returns event message bodies in only HTML format.
+        /// You can get a single resource instance expanded with a specific extended property, or a collection of resource instancesthat include extended properties matching a filter. Using the query parameter $expand allows you to get the specified resource instance expanded with a specific extendedproperty. Use a $filter and eq operator on the id property to specify the extended property. This is currently the only way to get the singleValueLegacyExtendedProperty object that represents an extended property. To get resource instances that have certain extended properties, use the $filter query parameter and apply an eq operatoron the id property. In addition, for numeric extended properties, apply one of the following operators on the value property:eq, ne,ge, gt, le, or lt. For string-typed extended properties, apply a contains, startswith, eq, or ne operator on value. The filter is applied to all instances of the resource in the signed-in user&apos;s mailbox. Filtering the string name (Name) in the id of an extended property is case-sensitive. Filtering the value property of an extendedproperty is case-insensitive. The following user resources are supported: As well as the following group resources: See Extended properties overview for more information about when to useopen extensions or extended properties, and how to specify extended properties.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -224,7 +224,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of an eventMessage object.
+        /// Update the properties of a message object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -238,7 +238,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -263,7 +263,7 @@ public partial class MessageItemRequestBuilderDeleteRequestConfiguration : Reque
         {
         }
         /// <summary>
-        /// Get the properties and relationships of the eventMessage object. Apply the $expand parameter on the event navigation property to get the associated event in an attendee&apos;s calendar. Currently, this operation returns event message bodies in only HTML format.
+        /// You can get a single resource instance expanded with a specific extended property, or a collection of resource instancesthat include extended properties matching a filter. Using the query parameter $expand allows you to get the specified resource instance expanded with a specific extendedproperty. Use a $filter and eq operator on the id property to specify the extended property. This is currently the only way to get the singleValueLegacyExtendedProperty object that represents an extended property. To get resource instances that have certain extended properties, use the $filter query parameter and apply an eq operatoron the id property. In addition, for numeric extended properties, apply one of the following operators on the value property:eq, ne,ge, gt, le, or lt. For string-typed extended properties, apply a contains, startswith, eq, or ne operator on value. The filter is applied to all instances of the resource in the signed-in user&apos;s mailbox. Filtering the string name (Name) in the id of an extended property is case-sensitive. Filtering the value property of an extendedproperty is case-insensitive. The following user resources are supported: As well as the following group resources: See Extended properties overview for more information about when to useopen extensions or extended properties, and how to specify extended properties.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class MessageItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MovePostRequestBody.cs
index 06e6b68ab36..7213dfa345c 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MoveRequestBuilder.cs
index c4da7ac8621..469bfccc6cc 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Me.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyPostRequestBody.cs
index fb534bd31eb..a5abd7ffb7f 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyRequestBuilder.cs
index 0db93e6979d..af519f26df8 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Reply/ReplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Messages.Item.Reply.Reply
         public async Task PostAsync(global::Microsoft.Graph.Me.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
index 988fd28ed24..d4ee84f1d41 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Messages.Item.ReplyAll.ReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Messages.Item.ReplyAll.ReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
index 171d553dac2..1a0a24fc9ca 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Messages.Item.ReplyAll.Re
         public async Task PostAsync(global::Microsoft.Graph.Me.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Me
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/Item/Value/ContentRequestBuilder.cs
index ce46a22a0c0..a61236dd54c 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/Item/Value/ContentRequestBuilder.cs
@@ -34,8 +34,8 @@ public ContentRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         {
         }
         /// <summary>
-        /// Delete eventMessage.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/eventmessage-delete?view=graph-rest-1.0" />
+        /// Delete a message in the specified user&apos;s mailbox, or delete a relationship of the message.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/message-delete?view=graph-rest-1.0" />
         /// </summary>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -57,8 +57,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Get an open extension (openTypeExtension object) identified by name or fully qualified name. The table in the Permissions section lists the resources that support open extensions. The following table lists the three scenarios where you can get an open extension from a supported resource instance.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/opentypeextension-get?view=graph-rest-1.0" />
+        /// Get the messages in the signed-in user&apos;s mailbox (including the Deleted Items and Clutter folders). Depending on the page size and mailbox data, getting messages from a mailbox can incur multiple requests. The default page size is 10 messages. Use $top to customize the page size, within the range of 1 and 1000. To improve the operation response time, use $select to specify the exact properties you need; see example 1 below. Fine-tune the values for $select and $top, especially when you must use a larger page size, as returning a page with hundreds of messages each with a full response payload may trigger the gateway timeout (HTTP 504). To get the next page of messages, simply apply the entire URL returned in @odata.nextLink to the next get-messages request. This URL includes any query parameters you may have specified in the initial request. Do not try to extract the $skip value from the @odata.nextLink URL to manipulate responses. This API uses the $skip value to keep count of all the items it has gone through in the user&apos;s mailbox to return a page of message-type items. It&apos;s therefore possible that even in the initial response, the $skip value is larger than the page size. For more information, see Paging Microsoft Graph data in your app. Currently, this operation returns message bodies in only HTML format. There are two scenarios where an app can get messages in another user&apos;s mail folder:
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/user-list-messages?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="Stream"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -81,8 +81,8 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
             return await RequestAdapter.SendPrimitiveAsync<Stream>(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of an eventMessage object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/eventmessage-update?view=graph-rest-1.0" />
+        /// Update the properties of a message object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/message-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="Stream"/></returns>
         /// <param name="body">Binary request body</param>
@@ -98,7 +98,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -107,7 +107,7 @@ public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<Defa
             return await RequestAdapter.SendPrimitiveAsync<Stream>(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Delete eventMessage.
+        /// Delete a message in the specified user&apos;s mailbox, or delete a relationship of the message.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -126,7 +126,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Get an open extension (openTypeExtension object) identified by name or fully qualified name. The table in the Permissions section lists the resources that support open extensions. The following table lists the three scenarios where you can get an open extension from a supported resource instance.
+        /// Get the messages in the signed-in user&apos;s mailbox (including the Deleted Items and Clutter folders). Depending on the page size and mailbox data, getting messages from a mailbox can incur multiple requests. The default page size is 10 messages. Use $top to customize the page size, within the range of 1 and 1000. To improve the operation response time, use $select to specify the exact properties you need; see example 1 below. Fine-tune the values for $select and $top, especially when you must use a larger page size, as returning a page with hundreds of messages each with a full response payload may trigger the gateway timeout (HTTP 504). To get the next page of messages, simply apply the entire URL returned in @odata.nextLink to the next get-messages request. This URL includes any query parameters you may have specified in the initial request. Do not try to extract the $skip value from the @odata.nextLink URL to manipulate responses. This API uses the $skip value to keep count of all the items it has gone through in the user&apos;s mailbox to return a page of message-type items. It&apos;s therefore possible that even in the initial response, the $skip value is larger than the page size. For more information, see Paging Microsoft Graph data in your app. Currently, this operation returns message bodies in only HTML format. There are two scenarios where an app can get messages in another user&apos;s mail folder:
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -145,7 +145,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of an eventMessage object.
+        /// Update the properties of a message object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">Binary request body</param>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -184,7 +184,7 @@ public partial class ContentRequestBuilderDeleteRequestConfiguration : RequestCo
         {
         }
         /// <summary>
-        /// Get an open extension (openTypeExtension object) identified by name or fully qualified name. The table in the Permissions section lists the resources that support open extensions. The following table lists the three scenarios where you can get an open extension from a supported resource instance.
+        /// Get the messages in the signed-in user&apos;s mailbox (including the Deleted Items and Clutter folders). Depending on the page size and mailbox data, getting messages from a mailbox can incur multiple requests. The default page size is 10 messages. Use $top to customize the page size, within the range of 1 and 1000. To improve the operation response time, use $select to specify the exact properties you need; see example 1 below. Fine-tune the values for $select and $top, especially when you must use a larger page size, as returning a page with hundreds of messages each with a full response payload may trigger the gateway timeout (HTTP 504). To get the next page of messages, simply apply the entire URL returned in @odata.nextLink to the next get-messages request. This URL includes any query parameters you may have specified in the initial request. Do not try to extract the $skip value from the @odata.nextLink URL to manipulate responses. This API uses the $skip value to keep count of all the items it has gone through in the user&apos;s mailbox to return a page of message-type items. It&apos;s therefore possible that even in the initial response, the $skip value is larger than the page size. For more information, see Paging Microsoft Graph data in your app. Currently, this operation returns message bodies in only HTML format. There are two scenarios where an app can get messages in another user&apos;s mail folder:
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ContentRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Me/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Messages/MessagesRequestBuilder.cs
index 3d72eea4ea1..79aef651b16 100644
--- a/src/Microsoft.Graph/Generated/Me/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Messages/MessagesRequestBuilder.cs
@@ -60,8 +60,8 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         {
         }
         /// <summary>
-        /// Get an open extension (openTypeExtension object) identified by name or fully qualified name. The table in the Permissions section lists the resources that support open extensions. The following table lists the three scenarios where you can get an open extension from a supported resource instance.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/opentypeextension-get?view=graph-rest-1.0" />
+        /// Get the messages in the signed-in user&apos;s mailbox (including the Deleted Items and Clutter folders). Depending on the page size and mailbox data, getting messages from a mailbox can incur multiple requests. The default page size is 10 messages. Use $top to customize the page size, within the range of 1 and 1000. To improve the operation response time, use $select to specify the exact properties you need; see example 1 below. Fine-tune the values for $select and $top, especially when you must use a larger page size, as returning a page with hundreds of messages each with a full response payload may trigger the gateway timeout (HTTP 504). To get the next page of messages, simply apply the entire URL returned in @odata.nextLink to the next get-messages request. This URL includes any query parameters you may have specified in the initial request. Do not try to extract the $skip value from the @odata.nextLink URL to manipulate responses. This API uses the $skip value to keep count of all the items it has gone through in the user&apos;s mailbox to return a page of message-type items. It&apos;s therefore possible that even in the initial response, the $skip value is larger than the page size. For more information, see Paging Microsoft Graph data in your app. Currently, this operation returns message bodies in only HTML format. There are two scenarios where an app can get messages in another user&apos;s mail folder:
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/user-list-messages?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MessageCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -84,8 +84,8 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MessageCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.MessageCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a draft of a new message in either JSON or MIME format. When using JSON format, you can:- Include an attachment to the message.- Update the draft later to add content to the body or change other message properties. When using MIME format:- Provide the applicable Internet message headers and the MIME content, all encoded in base64 format in the request body.- /* Add any attachments and S/MIME properties to the MIME content. By default, this operation saves the draft in the Drafts folder. Send the draft message in a subsequent operation. Alternatively, send a new message in a single operation, or create a draft to forward, reply and reply-all to an existing message.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/user-post-messages?view=graph-rest-1.0" />
+        /// Create an open extension (openTypeExtension object) and add custom properties in a new or existing instance of a resource. You can create an open extension in a resource instance and store custom data to it all in the same operation, except for specific resources. The table in the Permissions section lists the resources that support open extensions.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/opentypeextension-post-opentypeextension?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.Message"/></returns>
         /// <param name="body">The request body</param>
@@ -101,7 +101,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -110,7 +110,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.Message>(requestInfo, global::Microsoft.Graph.Models.Message.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Get an open extension (openTypeExtension object) identified by name or fully qualified name. The table in the Permissions section lists the resources that support open extensions. The following table lists the three scenarios where you can get an open extension from a supported resource instance.
+        /// Get the messages in the signed-in user&apos;s mailbox (including the Deleted Items and Clutter folders). Depending on the page size and mailbox data, getting messages from a mailbox can incur multiple requests. The default page size is 10 messages. Use $top to customize the page size, within the range of 1 and 1000. To improve the operation response time, use $select to specify the exact properties you need; see example 1 below. Fine-tune the values for $select and $top, especially when you must use a larger page size, as returning a page with hundreds of messages each with a full response payload may trigger the gateway timeout (HTTP 504). To get the next page of messages, simply apply the entire URL returned in @odata.nextLink to the next get-messages request. This URL includes any query parameters you may have specified in the initial request. Do not try to extract the $skip value from the @odata.nextLink URL to manipulate responses. This API uses the $skip value to keep count of all the items it has gone through in the user&apos;s mailbox to return a page of message-type items. It&apos;s therefore possible that even in the initial response, the $skip value is larger than the page size. For more information, see Paging Microsoft Graph data in your app. Currently, this operation returns message bodies in only HTML format. There are two scenarios where an app can get messages in another user&apos;s mail folder:
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -129,7 +129,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a draft of a new message in either JSON or MIME format. When using JSON format, you can:- Include an attachment to the message.- Update the draft later to add content to the body or change other message properties. When using MIME format:- Provide the applicable Internet message headers and the MIME content, all encoded in base64 format in the request body.- /* Add any attachments and S/MIME properties to the MIME content. By default, this operation saves the draft in the Drafts folder. Send the draft message in a subsequent operation. Alternatively, send a new message in a single operation, or create a draft to forward, reply and reply-all to an existing message.
+        /// Create an open extension (openTypeExtension object) and add custom properties in a new or existing instance of a resource. You can create an open extension in a resource instance and store custom data to it all in the same operation, except for specific resources. The table in the Permissions section lists the resources that support open extensions.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.Me.Messages.MessagesRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// Get an open extension (openTypeExtension object) identified by name or fully qualified name. The table in the Permissions section lists the resources that support open extensions. The following table lists the three scenarios where you can get an open extension from a supported resource instance.
+        /// Get the messages in the signed-in user&apos;s mailbox (including the Deleted Items and Clutter folders). Depending on the page size and mailbox data, getting messages from a mailbox can incur multiple requests. The default page size is 10 messages. Use $top to customize the page size, within the range of 1 and 1000. To improve the operation response time, use $select to specify the exact properties you need; see example 1 below. Fine-tune the values for $select and $top, especially when you must use a larger page size, as returning a page with hundreds of messages each with a full response payload may trigger the gateway timeout (HTTP 504). To get the next page of messages, simply apply the entire URL returned in @odata.nextLink to the next get-messages request. This URL includes any query parameters you may have specified in the initial request. Do not try to extract the $skip value from the @odata.nextLink URL to manipulate responses. This API uses the $skip value to keep count of all the items it has gone through in the user&apos;s mailbox to return a page of message-type items. It&apos;s therefore possible that even in the initial response, the $skip value is larger than the page size. For more information, see Paging Microsoft Graph data in your app. Currently, this operation returns message bodies in only HTML format. There are two scenarios where an app can get messages in another user&apos;s mail folder:
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class MessagesRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
index 368c6a79a3e..1de81b8eb75 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("webUrl", WebUrl);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
index de09ca06972..2c0d878f0bf 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.CopyNotebookModel> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
index a6259ad7bb3..bd8457736f2 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksGetResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecentNotebook>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
index 75148643235..55fb58104b4 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
@@ -20,7 +20,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
index 18116096463..345128b2e71 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("notebookFolder", NotebookFolder);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
index 81d3a5e2f77..8d68084095b 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
index 981a488607b..a989b39a3b7 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Notebook> PatchAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index fb7c490a0e2..068ce987021 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index d8702a37786..358d0a2f6a5 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index f3412852247..50eba4dce87 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index c100430d697..840fccba14b 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index b04075319c6..ab278191621 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 5af74d9344a..29f5d0a64e1 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 6ddc62764fd..44746c4bcee 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index f4e05b8db80..8b7c9604b57 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 354a84fd819..b7ee94524d8 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 8334320f6f9..92cd0342145 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index d26490a5aa7..047f4419399 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index ec5d1fcfa41..c7636371f2a 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Se
         public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index bd986e08944..f6ba35ed625 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index 2ba0a6c8cc9..5e9781efc48 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
index 88510185171..8032a13cdc7 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 65be36a248c..41fa8225f7d 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 4e8671acbe5..9a762e90052 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 86857332379..8cfbd2fb1ce 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index c239fc56dfa..f21e0e21cc5 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 0112f7ad142..311f1367510 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index bfb71b8d4e3..c684a855caf 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 3780a775e91..8453aff9127 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 56e8a76c18d..407c9c73c4f 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index fcee45a8217..c39c4cb0b4e 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 8e55d17848d..5a905cd784f 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index cdbcc0780fe..f8d4a0caff0 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Se
         public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 14ff718e51a..5458aa7fc75 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
index df012fe6971..affd84b15a3 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/NotebooksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/NotebooksRequestBuilder.cs
index 0ace5336786..db60754436d 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/NotebooksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Notebooks/NotebooksRequestBuilder.cs
@@ -91,7 +91,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="includePersonalNotebooks">Usage: includePersonalNotebooks={includePersonalNotebooks}</param>
         public global::Microsoft.Graph.Me.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder GetRecentNotebooksWithIncludePersonalNotebooks(bool? includePersonalNotebooks)
         {
-            _ = includePersonalNotebooks ?? throw new ArgumentNullException(nameof(includePersonalNotebooks));
+            if(ReferenceEquals(includePersonalNotebooks, null)) throw new ArgumentNullException(nameof(includePersonalNotebooks));
             return new global::Microsoft.Graph.Me.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder(PathParameters, RequestAdapter, includePersonalNotebooks);
         }
         /// <summary>
@@ -112,7 +112,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Notebook> PostAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/OnenoteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/OnenoteRequestBuilder.cs
index 4f4e54c5428..d6532c72ed1 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/OnenoteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/OnenoteRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Onenote> PatchAsync(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
index 893d7699c0b..7947f0aaab7 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PatchAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Operations/OperationsRequestBuilder.cs
index acb021d1277..3e1be73eb12 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
index 45205594901..62c245744bd 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 9912fd52537..77870647124 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index ae26fd89ac8..26e5f62d990 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
index 370aadf1d98..a16dd70afb3 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -134,7 +134,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -195,7 +195,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 11b7145c755..1e721e87d40 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index cb418760ff6..c27bbc45d36 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Pages.Item.Onenot
         public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/PagesRequestBuilder.cs
index eb445a2511f..109a91c3cb6 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Pages/PagesRequestBuilder.cs
@@ -95,7 +95,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
index 2b5d36c6826..d257c597bb1 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
index e94d224f20a..fd26f14ac6f 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PatchAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Resources/ResourcesRequestBuilder.cs
index abb2a5819a0..3a067c8f35d 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PostAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index 9b1b3c61453..d1852369bd1 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -121,7 +121,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -182,7 +182,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 3b0d5bb60af..ffbee11f057 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 7ce8488fe18..a6c32a01213 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index e2bfb5c0768..e83c80cc9f1 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index da4a885f26c..43bf54f8f1d 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index ab9dad20d64..d9cd4c61cfa 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 18404ce0745..c907697c519 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 022e5f77e85..fdf19cee16b 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index b92b3988f09..75bd6c75aa2 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 06314e401eb..65c81f75525 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 735ccad38a2..0ecfc03e91c 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 94f116d32a2..5f51ae3de58 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.SectionGroups.Ite
         public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 81884f61495..506b21166c3 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index 42ea2feab4b..4c25a688aba 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
index f47572157ff..cbc5f554e89 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index beb0958287b..1223f80104c 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index c7f37638e4f..3800ef8490d 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 5a8f41c8961..de595542d14 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index a517d6471d6..ec1cd8492ed 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 15681069c23..a216b765201 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index f5a204658f4..a50b6cf9728 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index fac89c48257..31c7f763367 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index c2fba1fb341..078c4907c4b 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index c45ba383247..95a71684a7a 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index a7d9decc00b..2f9e8d9d9d5 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 55d8061b9b5..313fc2d4220 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Sections.Item.Pag
         public async Task PostAsync(global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
index 841099b1244..850bde099fb 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -95,7 +95,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/SectionsRequestBuilder.cs
index c23c01894a7..d213b1fb428 100644
--- a/src/Microsoft.Graph/Generated/Me/Onenote/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Onenote/Sections/SectionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
index cd67f4a936d..d27d9e3b945 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
@@ -113,7 +113,7 @@ public CreateOrGetPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ChatInfo>("chatInfo", ChatInfo);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("externalId", ExternalId);
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
index 7cba4d7cbdc..2d5c0c294c2 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateOrGetRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PostAsync(global::Microsoft.Graph.Me.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index 5052cb32599..046bb9a3cd1 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserI
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecording>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
index 634a8ee7754..b51bb85f1f0 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserI
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index a7732c16adc..dde3b3fe2cb 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUser
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallTranscript>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
index 0269cc617f3..b72517ee6de 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUser
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
index d1192d7dab5..14363764a7d 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AttendanceReportsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PostAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
index 02c4fc6dc89..26b3e2d4078 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AttendanceRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PostAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
index d498fc6298b..9d71d991ef6 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PatchAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
index f51dbfd2078..0700e283f16 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PatchAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
index ee9685f038f..58c59500a92 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
index 43131ef703f..ef31b48a450 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
@@ -52,7 +52,7 @@ public GetVirtualAppointmentJoinWebUrlGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
index db7edd055ba..58b2ba47eaa 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
@@ -20,7 +20,7 @@ public partial class GetVirtualAppointmentJoinWebUrlResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
index 048c51c1c50..3a7a2c13893 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
@@ -141,7 +141,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PatchAsync(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -202,7 +202,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
index eb7abaa06a4..834a6bcba32 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.Item.Recordings.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.Recordings.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecording>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
index f01b6dee3ec..060ce6669fd 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.OnlineMeetings.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.Item.Recordings.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.Recordings.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
index 03b7ee0a800..6bf75b5b89d 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecording> PatchAsync(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
index a4f1bf7f438..573c9d3fdf3 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.CallRecording> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
index fe0c93cdd36..944d9d1e1d1 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
@@ -100,7 +100,7 @@ public RecordingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.CallRecording> PostAsync(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
index 96bf39b79b9..2761ee03261 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendVirtualAppointmentReminderSmsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeNotificationInfo>("attendees", Attendees);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RemindBeforeTimeInMinutesType>("remindBeforeTimeInMinutesType", RemindBeforeTimeInMinutesType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
index 3e29344c78a..d2eb00fa138 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.OnlineMeetings.Item.SendV
         public async Task PostAsync(global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
index 1058a599ef5..008c9fa237a 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendVirtualAppointmentSmsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeNotificationInfo>("attendees", Attendees);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.VirtualAppointmentMessageType>("messageType", MessageType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
index e23a31e6597..587bd2ee557 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.OnlineMeetings.Item.SendV
         public async Task PostAsync(global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.On
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
index 6c078568267..92ee141ad76 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.Item.Transcripts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.Transcripts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallTranscript>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
index 3e22ca85216..e8ce2a73244 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.OnlineMeetings.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.OnlineMeetings.Item.Transcripts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.OnlineMeetings.Item.Transcripts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
index 841fde126e3..72390f68d16 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PatchAsync(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
index f716fa40b9b..8cf69bb511c 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
index 2c52cebc0de..b2cf18386b3 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
index 4f14b0e3de6..21dfa4d1129 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
@@ -100,7 +100,7 @@ public TranscriptsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PostAsync(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/OnlineMeetingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
index ccdfdb45a63..e5b210cf9bd 100644
--- a/src/Microsoft.Graph/Generated/Me/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
@@ -113,7 +113,7 @@ public OnlineMeetingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PostAsync(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -155,7 +155,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs
index 67ac80cb03e..c6eb9b7fc58 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OutlookCategory> PatchAsync(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs
index d0cead7ad11..8b29be0d06c 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs
@@ -95,7 +95,7 @@ public MasterCategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.OutlookCategory> PostAsync(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs
index 61035881191..56f22b6d312 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SupportedLanguagesGetResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Outlook.SupportedLanguages.SupportedLanguagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Outlook.SupportedLanguages.SupportedLanguagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LocaleInfo>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs
index 187f9889662..0c007b1e955 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs
@@ -20,7 +20,7 @@ public partial class SupportedLanguagesResponse : global::Microsoft.Graph.Me.Out
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Outlook.SupportedLanguages.SupportedLanguagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Outlook.SupportedLanguages.SupportedLanguagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs
index 5257e8f3d11..4aebfbf6b13 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SupportedTimeZonesGetResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Outlook.SupportedTimeZones.SupportedTimeZonesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Outlook.SupportedTimeZones.SupportedTimeZonesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeZoneInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs
index de2cfd3f205..6aa5cbe5fa9 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs
@@ -20,7 +20,7 @@ public partial class SupportedTimeZonesResponse : global::Microsoft.Graph.Me.Out
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Outlook.SupportedTimeZones.SupportedTimeZonesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Outlook.SupportedTimeZones.SupportedTimeZonesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs
index 79af2176ab3..2b9bbe20937 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SupportedTimeZonesWithTimeZoneStandardGetResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeZoneInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs
index 5bb670de78f..bfeb3c2f4e4 100644
--- a/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs
@@ -20,7 +20,7 @@ public partial class SupportedTimeZonesWithTimeZoneStandardResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 4d4fa1e28ff..f3720a28061 100644
--- a/src/Microsoft.Graph/Generated/Me/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/PermissionGrants/PermissionGrantsRequestBuilder.cs
index 6f63584d7f1..e3156af81c3 100644
--- a/src/Microsoft.Graph/Generated/Me/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Photo/PhotoRequestBuilder.cs
index 0f0ae266016..4c74944546e 100644
--- a/src/Microsoft.Graph/Generated/Me/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Photo/PhotoRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Photo/Value/ContentRequestBuilder.cs
index a99b617e9d2..a5bca01cd27 100644
--- a/src/Microsoft.Graph/Generated/Me/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Photo/Value/ContentRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Photos/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Photos/Item/Value/ContentRequestBuilder.cs
index 755bbf84d9f..8ffea69b2b2 100644
--- a/src/Microsoft.Graph/Generated/Me/Photos/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Photos/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/PlannerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/PlannerRequestBuilder.cs
index 00a7bc80bba..96d24f9b894 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/PlannerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/PlannerRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerUser> PatchAsync(global::Microsoft.Graph.Models.PlannerUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
index aeeec1fb5cc..b46ec3ff67a 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
@@ -93,7 +93,7 @@ public BucketsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PostAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
index e8cc73db99d..256caddfe23 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PatchAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 4b441787276..f63db2ea51d 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index 2f079d4d3b6..a2de387f814 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index 8ae8819a2ec..2ee175f5d30 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 6d2e96762de..0723b08e35e 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 39ee5d83cc7..15a070d3490 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
index 83497ce3251..97880d1a4bb 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
index 7e53b73e9f6..bca2a54d883 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlanDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
index 65cab23e29e..e50e764e3eb 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PatchAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 752f3c3ed14..9c74da86447 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index e1c98028d1c..dc4e9e4abe2 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index c701fe78839..4ac643e5b7c 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 3cb57e5f1e9..8626dc62f1b 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 651e9d514ca..bf9dfdd35fa 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
index e4dd204824d..fa72214b4af 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Plans/PlansRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Plans/PlansRequestBuilder.cs
index 3528bed2e89..f0e818fe9cf 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Plans/PlansRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Plans/PlansRequestBuilder.cs
@@ -94,7 +94,7 @@ public PlansRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PostAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index dd658fd0b05..ccf7901792f 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index 44b2e894918..111d411818d 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
index 2cd268bca03..2b213e1f637 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 380ab564df5..e88a58094d7 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 56645bb300e..285b29215b1 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/TasksRequestBuilder.cs
index 175d0c495f8..08a1f463839 100644
--- a/src/Microsoft.Graph/Generated/Me/Planner/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Planner/Tasks/TasksRequestBuilder.cs
@@ -94,7 +94,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresencePostRequestBody.cs
index d101081a94a..24ec89276d7 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresencePostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Presence.ClearPresence.ClearPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Presence.ClearPresence.ClearPresencePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("sessionId", SessionId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresenceRequestBuilder.cs
index 3ba9566ab10..d8d08e5e965 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/ClearPresence/ClearPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Presence.ClearPresence.Cl
         public async Task PostAsync(global::Microsoft.Graph.Me.Presence.ClearPresence.ClearPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Pr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Presence.ClearPresence.ClearPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/PresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Presence/PresenceRequestBuilder.cs
index c75034c1347..27eb83c4904 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/PresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/PresenceRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Presence> PatchAsync(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresencePostRequestBody.cs
index 77b5b25980b..adbd2660fdb 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresencePostRequestBody.cs
@@ -90,7 +90,7 @@ public SetPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Presence.SetPresence.SetPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Presence.SetPresence.SetPresencePostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activity", Activity);
             writer.WriteStringValue("availability", Availability);
             writer.WriteTimeSpanValue("expirationDuration", ExpirationDuration);
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresenceRequestBuilder.cs
index 67659f7eb8f..2b1256a3d53 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/SetPresence/SetPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Presence.SetPresence.SetP
         public async Task PostAsync(global::Microsoft.Graph.Me.Presence.SetPresence.SetPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Pr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Presence.SetPresence.SetPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs
index d620fe16784..36f14e8402b 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs
@@ -53,7 +53,7 @@ public SetStatusMessagePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Presence.SetStatusMessage.SetStatusMessagePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Presence.SetStatusMessage.SetStatusMessagePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PresenceStatusMessage>("statusMessage", StatusMessage);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs
index 1acd7c3c2af..3d87654c103 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Presence.SetStatusMessage
         public async Task PostAsync(global::Microsoft.Graph.Me.Presence.SetStatusMessage.SetStatusMessagePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Pr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Presence.SetStatusMessage.SetStatusMessagePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
index df955cc8df1..276b357157d 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
@@ -74,7 +74,7 @@ public SetUserPreferredPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activity", Activity);
             writer.WriteStringValue("availability", Availability);
             writer.WriteTimeSpanValue("expirationDuration", ExpirationDuration);
diff --git a/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
index c1bee30a930..bf113059c23 100644
--- a/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Presence.SetUserPreferred
         public async Task PostAsync(global::Microsoft.Graph.Me.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Pr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs
index c35a0db862f..fa507640aae 100644
--- a/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class ReminderViewWithStartDateTimeWithEndDateTimeGetResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Reminder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs
index 797cb2611f5..9e53795e6e3 100644
--- a/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class ReminderViewWithStartDateTimeWithEndDateTimeResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs b/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs
index 7c291296ba3..57daa272b19 100644
--- a/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs
@@ -42,7 +42,7 @@ public RevokeSignInSessionsPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.RevokeSignInSessions.RevokeSignInSessionsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.RevokeSignInSessions.RevokeSignInSessionsPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsResponse.cs b/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsResponse.cs
index 6970e9bc6c9..84a10706f96 100644
--- a/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/RevokeSignInSessions/RevokeSignInSessionsResponse.cs
@@ -20,7 +20,7 @@ public partial class RevokeSignInSessionsResponse : global::Microsoft.Graph.Me.R
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.RevokeSignInSessions.RevokeSignInSessionsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.RevokeSignInSessions.RevokeSignInSessionsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs
index 975e7ba6a43..0df4d9eae93 100644
--- a/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PatchAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs
index b50d217f50c..56518906369 100644
--- a/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopedRoleMemberOfRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PostAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/SendMail/SendMailPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/SendMail/SendMailPostRequestBody.cs
index 9e340400503..da8a93f3502 100644
--- a/src/Microsoft.Graph/Generated/Me/SendMail/SendMailPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/SendMail/SendMailPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendMailPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.SendMail.SendMailPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.SendMail.SendMailPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteBoolValue("SaveToSentItems", SaveToSentItems);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Me/SendMail/SendMailRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/SendMail/SendMailRequestBuilder.cs
index 7fa59e25a1e..66b2e6a1783 100644
--- a/src/Microsoft.Graph/Generated/Me/SendMail/SendMailRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/SendMail/SendMailRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.SendMail.SendMailPostRequ
         public async Task PostAsync(global::Microsoft.Graph.Me.SendMail.SendMailPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Se
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.SendMail.SendMailPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/ItemInsights/ItemInsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/ItemInsights/ItemInsightsRequestBuilder.cs
index a15c0824157..0107af1a720 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/ItemInsights/ItemInsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/ItemInsights/ItemInsightsRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserInsightsSettings> PatchAsync(global::Microsoft.Graph.Models.UserInsightsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserInsightsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/SettingsRequestBuilder.cs
index 816157a7e11..6495fede209 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/SettingsRequestBuilder.cs
@@ -122,7 +122,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserSettings> PatchAsync(global::Microsoft.Graph.Models.UserSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -183,7 +183,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs
index 254a2029a6e..eb6f1e06bc3 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ShiftPreferences> PatchAsync(global::Microsoft.Graph.Models.ShiftPreferences body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ShiftPreferences body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/QuotaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/QuotaRequestBuilder.cs
index d421b8e1759..e198c9a5b72 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/QuotaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/QuotaRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedStorageQuota> PatchAsync(global::Microsoft.Graph.Models.UnifiedStorageQuota body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedStorageQuota body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
index ae7fcf88c17..f1fc38d383a 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown> PatchAsync(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs
index 87a2fa45423..58a78aaf231 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ServicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown> PostAsync(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Storage/StorageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Storage/StorageRequestBuilder.cs
index b1a1201476c..e5ea5286226 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Storage/StorageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Storage/StorageRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserStorage> PatchAsync(global::Microsoft.Graph.Models.UserStorage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserStorage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs
index a5e2bf8987e..cfd0a2329a4 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs
@@ -94,7 +94,7 @@ public InstancesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WindowsSettingInstance> PostAsync(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs
index a6dfba1b920..3551145e5e3 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsSettingInstance> PatchAsync(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs
index e90a721032a..9e366af9e99 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsSetting> PatchAsync(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Settings/Windows/WindowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Settings/Windows/WindowsRequestBuilder.cs
index cc1a8e6b220..0d1d1b07060 100644
--- a/src/Microsoft.Graph/Generated/Me/Settings/Windows/WindowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Settings/Windows/WindowsRequestBuilder.cs
@@ -94,7 +94,7 @@ public WindowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WindowsSetting> PostAsync(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Solutions/SolutionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Solutions/SolutionsRequestBuilder.cs
index a890762fbdd..ca5847e9435 100644
--- a/src/Microsoft.Graph/Generated/Me/Solutions/SolutionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Solutions/SolutionsRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserSolutionRoot> PatchAsync(global::Microsoft.Graph.Models.UserSolutionRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserSolutionRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs
index 5e31dd41399..5c4bc4049bb 100644
--- a/src/Microsoft.Graph/Generated/Me/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkingTimeSchedule> PatchAsync(global::Microsoft.Graph.Models.WorkingTimeSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkingTimeSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs
index 6cc7cae4b51..f29125bc6fd 100644
--- a/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AssociatedTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.AssociatedTeamInfo> PostAsync(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs
index 2345b35a9a0..89c289fa63c 100644
--- a/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AssociatedTeamInfo> PatchAsync(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs
index 5caaae5f904..6192e6ca025 100644
--- a/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs
index 25ad27c843a..da0af3dbbb3 100644
--- a/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index e5db260c25a..206d5ebfea0 100644
--- a/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -139,7 +139,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -165,7 +165,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index aa650c0fb6e..00b2ea0063f 100644
--- a/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.Teamwork.SendActivityNoti
         public async Task PostAsync(global::Microsoft.Graph.Me.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Te
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Teamwork/TeamworkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Teamwork/TeamworkRequestBuilder.cs
index 6fb7d83f6f4..8468941c3a6 100644
--- a/src/Microsoft.Graph/Generated/Me/Teamwork/TeamworkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Teamwork/TeamworkRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserTeamwork> PatchAsync(global::Microsoft.Graph.Models.UserTeamwork body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserTeamwork body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaGetResponse.cs
index b2210c6edf9..144628fef4c 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Todo.Lists.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Todo.Lists.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TodoTaskList>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaResponse.cs
index b14a1497130..619aa7aa95c 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Todo.Lists.Delta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Todo.Lists.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Todo.Lists.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs
index 1293a8074b0..a68d1833d1c 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 97c30480f86..3adbad72d8b 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs
index c67047ab03d..cfde3f82aa9 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TodoTask>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs
index 761a42a779a..aa5bd3e67b2 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Me.Todo.Lists.Item.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs
index e00f0b0e90e..60b3f86bc0d 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttachmentSession> PatchAsync(global::Microsoft.Graph.Models.AttachmentSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttachmentSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs
index 8ac5bdd2718..fb29c20f328 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.AttachmentSession> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs
index 85a28e93326..923fab2cc5d 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -101,7 +101,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AttachmentBase> PostAsync(global::Microsoft.Graph.Models.AttachmentBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttachmentBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 9bc89205bfc..7c64864ffa3 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentInfo>("attachmentInfo", AttachmentInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 5b970ed7efa..fdf08c96433 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.To
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs
index 4419377f315..0cbce34ae42 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs
index ce7405130f1..22675170ee3 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ChecklistItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChecklistItem> PostAsync(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs
index 5eaf2d8ea8e..4abc018ef7e 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChecklistItem> PatchAsync(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs
index 37e1e80aa15..a5d0d5ae11b 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 50b5ffefc2a..226dfa1beca 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs
index 2f65550d488..99268bfb80c 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LinkedResource> PatchAsync(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs
index 2ab43208b77..b5a4311174d 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public LinkedResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.LinkedResource> PostAsync(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs
index 8b08d5c49d7..4a85ac50b56 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs
@@ -129,7 +129,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TodoTask> PatchAsync(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -190,7 +190,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs
index 45525711e40..86973ed1772 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs
@@ -101,7 +101,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TodoTask> PostAsync(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs
index 6e11a7d899b..883a1e445ad 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TodoTaskList> PatchAsync(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/Lists/ListsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/Lists/ListsRequestBuilder.cs
index f03c382e747..199dc6de0c7 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/Lists/ListsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/Lists/ListsRequestBuilder.cs
@@ -101,7 +101,7 @@ public ListsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TodoTaskList> PostAsync(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/Todo/TodoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/Todo/TodoRequestBuilder.cs
index bc8d8dd5d4e..0fdb5842f50 100644
--- a/src/Microsoft.Graph/Generated/Me/Todo/TodoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/Todo/TodoRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Todo> PatchAsync(global::Microsoft.Graph.Models.Todo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Todo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs
index f6da19eddc0..18063ae688e 100644
--- a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs
@@ -65,7 +65,7 @@ public TranslateExchangeIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("InputIds", InputIds);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExchangeIdFormat>("SourceIdType", SourceIdType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExchangeIdFormat>("TargetIdType", TargetIdType);
diff --git a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs
index f53f795907b..d20016bad97 100644
--- a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class TranslateExchangeIdsPostResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConvertIdResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs
index 1d4fe6f0110..bbe051ff2c4 100644
--- a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public TranslateExchangeIdsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostResponse> PostAsTranslateExchangeIdsPostResponseAsync(global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public TranslateExchangeIdsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsResponse> PostAsync(global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Tr
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsResponse.cs b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsResponse.cs
index 132a7362ce0..7742c5937c9 100644
--- a/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Me/TranslateExchangeIds/TranslateExchangeIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class TranslateExchangeIdsResponse : global::Microsoft.Graph.Me.T
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.TranslateExchangeIds.TranslateExchangeIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs b/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs
index b2015a3e10e..246e4b89d92 100644
--- a/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs
@@ -52,7 +52,7 @@ public WipeManagedAppRegistrationsByDeviceTagPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Me.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Me.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("deviceTag", DeviceTag);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs b/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs
index 239619c450f..6c70962e2e7 100644
--- a/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Me/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Me.WipeManagedAppRegistratio
         public async Task PostAsync(global::Microsoft.Graph.Me.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.Wi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Me.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Models/AadUserConversationMember.cs b/src/Microsoft.Graph/Generated/Models/AadUserConversationMember.cs
index 0fa4bc2b200..675d1b626e1 100644
--- a/src/Microsoft.Graph/Generated/Models/AadUserConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/AadUserConversationMember.cs
@@ -90,7 +90,7 @@ public AadUserConversationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AadUserConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AadUserConversationMember();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("email", Email);
             writer.WriteStringValue("tenantId", TenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/AadUserConversationMemberResult.cs b/src/Microsoft.Graph/Generated/Models/AadUserConversationMemberResult.cs
index 1144d03a5c0..4895aa17b26 100644
--- a/src/Microsoft.Graph/Generated/Models/AadUserConversationMemberResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/AadUserConversationMemberResult.cs
@@ -42,7 +42,7 @@ public AadUserConversationMemberResult() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AadUserConversationMemberResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AadUserConversationMemberResult();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userId", UserId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AadUserNotificationRecipient.cs b/src/Microsoft.Graph/Generated/Models/AadUserNotificationRecipient.cs
index 515bc37ff61..e8845793984 100644
--- a/src/Microsoft.Graph/Generated/Models/AadUserNotificationRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/AadUserNotificationRecipient.cs
@@ -42,7 +42,7 @@ public AadUserNotificationRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AadUserNotificationRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AadUserNotificationRecipient();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userId", UserId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessAction.cs b/src/Microsoft.Graph/Generated/Models/AccessAction.cs
index 4c6d4df6d83..e5c407006fd 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessAction.cs
@@ -52,7 +52,7 @@ public AccessAction()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessAction();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackage.cs b/src/Microsoft.Graph/Generated/Models/AccessPackage.cs
index 80ccba6f35c..56f57855cee 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackage.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackage.cs
@@ -165,7 +165,7 @@ public DateTimeOffset? ModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackage();
         }
         /// <summary>
@@ -195,7 +195,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackage>("accessPackagesIncompatibleWith", AccessPackagesIncompatibleWith);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy>("assignmentPolicies", AssignmentPolicies);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAnswer.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAnswer.cs
index 039011c1292..00395ada0c1 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAnswer.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAnswer.cs
@@ -84,7 +84,7 @@ public AccessPackageAnswer()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageAnswer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -111,7 +111,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackageQuestion>("answeredQuestion", AnsweredQuestion);
             writer.WriteStringValue("displayValue", DisplayValue);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerChoice.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerChoice.cs
index 44124ae5eb5..7052a83b60d 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerChoice.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerChoice.cs
@@ -100,7 +100,7 @@ public AccessPackageAnswerChoice()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageAnswerChoice CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAnswerChoice();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("actualValue", ActualValue);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageLocalizedText>("localizations", Localizations);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerString.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerString.cs
index 48146219903..27debb75806 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerString.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAnswerString.cs
@@ -42,7 +42,7 @@ public AccessPackageAnswerString() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAnswerString CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAnswerString();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageApprovalStage.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageApprovalStage.cs
index ad759cc94a5..2dcd9156b65 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageApprovalStage.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageApprovalStage.cs
@@ -140,7 +140,7 @@ public AccessPackageApprovalStage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageApprovalStage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageApprovalStage();
         }
         /// <summary>
@@ -168,7 +168,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeSpanValue("durationBeforeAutomaticDenial", DurationBeforeAutomaticDenial);
             writer.WriteTimeSpanValue("durationBeforeEscalation", DurationBeforeEscalation);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SubjectSet>("escalationApprovers", EscalationApprovers);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignment.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignment.cs
index 33cdbe43163..cf8d74230ec 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignment.cs
@@ -127,7 +127,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignment();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackage>("accessPackage", AccessPackage);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy>("assignmentPolicy", AssignmentPolicy);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentApprovalSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentApprovalSettings.cs
index 7571ee6ac5c..4a47f58fefe 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentApprovalSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentApprovalSettings.cs
@@ -86,7 +86,7 @@ public AccessPackageAssignmentApprovalSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageAssignmentApprovalSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentApprovalSettings();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isApprovalRequiredForAdd", IsApprovalRequiredForAdd);
             writer.WriteBoolValue("isApprovalRequiredForUpdate", IsApprovalRequiredForUpdate);
             writer.WriteBoolValue("isRequestorJustificationRequired", IsRequestorJustificationRequired);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentCollectionResponse.cs
index 0417efa45cc..2db252f0596 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageAssignmentCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicy.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicy.cs
index 66e7ba58344..a5d4ec1b7bf 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicy.cs
@@ -245,7 +245,7 @@ public DateTimeOffset? ModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy();
         }
         /// <summary>
@@ -280,7 +280,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackage>("accessPackage", AccessPackage);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AllowedTargetScope>("allowedTargetScope", AllowedTargetScope);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicyCollectionResponse.cs
index ced09b37531..03de72ad703 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageAssignmentPolicyCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignmentPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequest.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequest.cs
index b4d382d784c..806c33366cc 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequest.cs
@@ -171,7 +171,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentRequest();
         }
         /// <summary>
@@ -202,7 +202,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackage>("accessPackage", AccessPackage);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAnswer>("answers", Answers);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCallbackData.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCallbackData.cs
index 26c82cd78de..ffb48b35c73 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCallbackData.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCallbackData.cs
@@ -80,7 +80,7 @@ public AccessPackageAssignmentRequestCallbackData() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestCallbackData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestCallbackData();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("customExtensionStageInstanceDetail", CustomExtensionStageInstanceDetail);
             writer.WriteStringValue("customExtensionStageInstanceId", CustomExtensionStageInstanceId);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCollectionResponse.cs
index fdc5dc3c7f8..5f3a8a982d9 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageAssignmentRequestCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAssignmentRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestRequirements.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestRequirements.cs
index 554ef8b04c0..47a63849bb0 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestRequirements.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestRequirements.cs
@@ -156,7 +156,7 @@ public AccessPackageAssignmentRequestRequirements()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageAssignmentRequestRequirements CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestRequirements();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowCustomAssignmentSchedule", AllowCustomAssignmentSchedule);
             writer.WriteBoolValue("isApprovalRequiredForAdd", IsApprovalRequiredForAdd);
             writer.WriteBoolValue("isApprovalRequiredForUpdate", IsApprovalRequiredForUpdate);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestWorkflowExtension.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestWorkflowExtension.cs
index 4378f70923f..4c9592fad50 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestWorkflowExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestWorkflowExtension.cs
@@ -86,7 +86,7 @@ public AccessPackageAssignmentRequestWorkflowExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestWorkflowExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestWorkflowExtension();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionCallbackConfiguration>("callbackConfiguration", CallbackConfiguration);
             writer.WriteStringValue("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestorSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestorSettings.cs
index 6d0badef39e..3eb82f36501 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestorSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentRequestorSettings.cs
@@ -110,7 +110,7 @@ public AccessPackageAssignmentRequestorSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageAssignmentRequestorSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentRequestorSettings();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowCustomAssignmentSchedule", AllowCustomAssignmentSchedule);
             writer.WriteBoolValue("enableOnBehalfRequestorsToAddAccess", EnableOnBehalfRequestorsToAddAccess);
             writer.WriteBoolValue("enableOnBehalfRequestorsToRemoveAccess", EnableOnBehalfRequestorsToRemoveAccess);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentReviewSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentReviewSettings.cs
index c4d08848827..a021ed3ad4d 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentReviewSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentReviewSettings.cs
@@ -130,7 +130,7 @@ public AccessPackageAssignmentReviewSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageAssignmentReviewSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentReviewSettings();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AccessReviewExpirationBehavior>("expirationBehavior", ExpirationBehavior);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SubjectSet>("fallbackReviewers", FallbackReviewers);
             writer.WriteBoolValue("isEnabled", IsEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentWorkflowExtension.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentWorkflowExtension.cs
index 9179dbe4c0a..9c05950bef2 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentWorkflowExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAssignmentWorkflowExtension.cs
@@ -86,7 +86,7 @@ public AccessPackageAssignmentWorkflowExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageAssignmentWorkflowExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAssignmentWorkflowExtension();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionCallbackConfiguration>("callbackConfiguration", CallbackConfiguration);
             writer.WriteStringValue("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageAutomaticRequestSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageAutomaticRequestSettings.cs
index 19c68dbbfbb..a9637fc4545 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageAutomaticRequestSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageAutomaticRequestSettings.cs
@@ -70,7 +70,7 @@ public AccessPackageAutomaticRequestSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageAutomaticRequestSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageAutomaticRequestSettings();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeSpanValue("gracePeriodBeforeAccessRemoval", GracePeriodBeforeAccessRemoval);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("removeAccessWhenTargetLeavesAllowedTargets", RemoveAccessWhenTargetLeavesAllowedTargets);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageCatalog.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageCatalog.cs
index 94345c6c780..7b1bd5cb66a 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageCatalog.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageCatalog.cs
@@ -161,7 +161,7 @@ public DateTimeOffset? ModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageCatalog CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageCatalog();
         }
         /// <summary>
@@ -192,7 +192,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackage>("accessPackages", AccessPackages);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AccessPackageCatalogType>("catalogType", CatalogType);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageCatalogCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageCatalogCollectionResponse.cs
index 3103e322ca6..d32cda677ac 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageCatalogCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageCatalogCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageCatalogCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageCatalogCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageCatalogCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageCatalog>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageCollectionResponse.cs
index fe550a18625..a0dcc9b25d2 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageLocalizedText.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageLocalizedText.cs
index 462c8aee092..ce420f0145a 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageLocalizedText.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageLocalizedText.cs
@@ -84,7 +84,7 @@ public AccessPackageLocalizedText()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageLocalizedText CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageLocalizedText();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("languageCode", LanguageCode);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("text", Text);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageMultipleChoiceQuestion.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageMultipleChoiceQuestion.cs
index a86b98575fc..235f1a88691 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageMultipleChoiceQuestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageMultipleChoiceQuestion.cs
@@ -48,7 +48,7 @@ public AccessPackageMultipleChoiceQuestion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageMultipleChoiceQuestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageMultipleChoiceQuestion();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageAnswerChoice>("choices", Choices);
             writer.WriteBoolValue("isMultipleSelectionAllowed", IsMultipleSelectionAllowed);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageNotificationSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageNotificationSettings.cs
index 4f70b41ffdc..a58253b7c52 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageNotificationSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageNotificationSettings.cs
@@ -58,7 +58,7 @@ public AccessPackageNotificationSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageNotificationSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageNotificationSettings();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAssignmentNotificationDisabled", IsAssignmentNotificationDisabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageQuestion.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageQuestion.cs
index 4288ad036e1..3443f317dd9 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageQuestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageQuestion.cs
@@ -69,7 +69,7 @@ public string Text
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageQuestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -99,7 +99,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isAnswerEditable", IsAnswerEditable);
             writer.WriteBoolValue("isRequired", IsRequired);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageQuestionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageQuestionCollectionResponse.cs
index 4ccc2050515..7a942ecd5c2 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageQuestionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageQuestionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageQuestionCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageQuestionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageQuestionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageQuestion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResource.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResource.cs
index 0695d7dc12a..7618be0ff47 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResource.cs
@@ -159,7 +159,7 @@ public string OriginSystem
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResource();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageResourceAttribute>("attributes", Attributes);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttribute.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttribute.cs
index 85bfd3e6be3..339596fcda8 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttribute.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttribute.cs
@@ -112,7 +112,7 @@ public AccessPackageResourceAttribute()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageResourceAttribute CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceAttribute();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackageResourceAttributeDestination>("destination", Destination);
             writer.WriteBoolValue("isEditable", IsEditable);
             writer.WriteBoolValue("isPersistedOnAssignmentRemoval", IsPersistedOnAssignmentRemoval);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeDestination.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeDestination.cs
index 7da040280a1..b08fe5f2f56 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeDestination.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeDestination.cs
@@ -52,7 +52,7 @@ public AccessPackageResourceAttributeDestination()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageResourceAttributeDestination CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeQuestion.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeQuestion.cs
index 01181a6e4ff..a1072b3805c 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeQuestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeQuestion.cs
@@ -42,7 +42,7 @@ public AccessPackageResourceAttributeQuestion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceAttributeQuestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceAttributeQuestion();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackageQuestion>("question", Question);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeSource.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeSource.cs
index 1b862044f56..067c095dc67 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceAttributeSource.cs
@@ -52,7 +52,7 @@ public AccessPackageResourceAttributeSource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessPackageResourceAttributeSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceCollectionResponse.cs
index ac921094760..df0055d5172 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageResourceCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageResource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironment.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironment.cs
index 445a263af1e..b36999f51a0 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironment.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironment.cs
@@ -133,7 +133,7 @@ public string OriginSystem
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceEnvironment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceEnvironment();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConnectionInfo>("connectionInfo", ConnectionInfo);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironmentCollectionResponse.cs
index b3be6cec768..b3568c2f73d 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceEnvironmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageResourceEnvironmentCollectionResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceEnvironmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceEnvironmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageResourceEnvironment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequest.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequest.cs
index 2f1429496b1..bd7d89d5bbd 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequest.cs
@@ -69,7 +69,7 @@ public DateTimeOffset? CreatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceRequest();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackageCatalog>("catalog", Catalog);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequestCollectionResponse.cs
index 62030c00f1d..ce4030ffe79 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageResourceRequestCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageResourceRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRole.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRole.cs
index 11638858d6f..9934565b9f6 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRole.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRole.cs
@@ -99,7 +99,7 @@ public string OriginSystem
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceRole CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceRole();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleCollectionResponse.cs
index 2b504ce5f26..f0925bc124c 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageResourceRoleCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceRoleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceRoleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageResourceRole>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScope.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScope.cs
index 2c0adef3d1e..d76cc33d334 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScope.cs
@@ -57,7 +57,7 @@ public DateTimeOffset? CreatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceRoleScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceRoleScope();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessPackageResourceRole>("role", Role);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScopeCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScopeCollectionResponse.cs
index 8a24b54fe7f..92e2dcf8f88 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScopeCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceRoleScopeCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageResourceRoleScopeCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceRoleScopeCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceRoleScopeCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageResourceRoleScope>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScope.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScope.cs
index 86324e950fb..02b961a5f6b 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScope.cs
@@ -105,7 +105,7 @@ public string OriginSystem
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceScope();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScopeCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScopeCollectionResponse.cs
index 4d42f29c0d8..de93174f590 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScopeCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageResourceScopeCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessPackageResourceScopeCollectionResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageResourceScopeCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageResourceScopeCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackageResourceScope>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageSubject.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageSubject.cs
index f64baf8235d..195515e5cdf 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageSubject.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageSubject.cs
@@ -121,7 +121,7 @@ public string PrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageSubject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageSubject();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConnectedOrganization>("connectedOrganization", ConnectedOrganization);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageTextInputQuestion.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageTextInputQuestion.cs
index 39f3f53ce73..d217288d885 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageTextInputQuestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageTextInputQuestion.cs
@@ -48,7 +48,7 @@ public AccessPackageTextInputQuestion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageTextInputQuestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageTextInputQuestion();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isSingleLineQuestion", IsSingleLineQuestion);
             writer.WriteStringValue("regexPattern", RegexPattern);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessPackageUserDirectoryAttributeStore.cs b/src/Microsoft.Graph/Generated/Models/AccessPackageUserDirectoryAttributeStore.cs
index 45191ffe6ef..426cc195fe4 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessPackageUserDirectoryAttributeStore.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessPackageUserDirectoryAttributeStore.cs
@@ -26,7 +26,7 @@ public AccessPackageUserDirectoryAttributeStore() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessPackageUserDirectoryAttributeStore CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessPackageUserDirectoryAttributeStore();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewApplyAction.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewApplyAction.cs
index 433740d1a56..3d5e2109055 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewApplyAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewApplyAction.cs
@@ -52,7 +52,7 @@ public AccessReviewApplyAction()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewApplyAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinition.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinition.cs
index 5f3e95c9dcf..9ea27edf842 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinition.cs
@@ -139,7 +139,7 @@ public DateTimeOffset? ReviewHistoryPeriodStartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewHistoryDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewHistoryDefinition();
         }
         /// <summary>
@@ -168,7 +168,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserIdentity>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinitionCollectionResponse.cs
index c9754e8876e..2b3884cc773 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessReviewHistoryDefinitionCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewHistoryDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewHistoryDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewHistoryDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstance.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstance.cs
index 0b0e7da9c73..eb7527b7f1e 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstance.cs
@@ -71,7 +71,7 @@ public DateTimeOffset? RunDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewHistoryInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewHistoryInstance();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("downloadUri", DownloadUri);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstanceCollectionResponse.cs
index d4624ccafc7..96afdda13b4 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryInstanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessReviewHistoryInstanceCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewHistoryInstanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewHistoryInstanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewHistoryInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryScheduleSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryScheduleSettings.cs
index 50f0376961e..46182052c06 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryScheduleSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewHistoryScheduleSettings.cs
@@ -84,7 +84,7 @@ public AccessReviewHistoryScheduleSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewHistoryScheduleSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewHistoryScheduleSettings();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PatternedRecurrence>("recurrence", Recurrence);
             writer.WriteStringValue("reportRange", ReportRange);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInactiveUsersQueryScope.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInactiveUsersQueryScope.cs
index 59920a67736..bb582e88d60 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInactiveUsersQueryScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInactiveUsersQueryScope.cs
@@ -32,7 +32,7 @@ public AccessReviewInactiveUsersQueryScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInactiveUsersQueryScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInactiveUsersQueryScope();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteTimeSpanValue("inactiveDuration", InactiveDuration);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstance.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstance.cs
index 60c23c8c5bc..0d59873d9ca 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstance.cs
@@ -143,7 +143,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInstance();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewReviewer>("contactedReviewers", ContactedReviewers);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem>("decisions", Decisions);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceCollectionResponse.cs
index 3a186a1b2e4..f529d66ccdd 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessReviewInstanceCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInstanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInstanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItem.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItem.cs
index a7dda3dc742..d38b3185402 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItem.cs
@@ -223,7 +223,7 @@ public DateTimeOffset? ReviewedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem();
         }
         /// <summary>
@@ -256,7 +256,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("accessReviewId", AccessReviewId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserIdentity>("appliedBy", AppliedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAccessPackageAssignmentPolicyResource.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAccessPackageAssignmentPolicyResource.cs
index 7d23fd06cf8..4162926328f 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAccessPackageAssignmentPolicyResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAccessPackageAssignmentPolicyResource.cs
@@ -58,7 +58,7 @@ public AccessReviewInstanceDecisionItemAccessPackageAssignmentPolicyResource() :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemAccessPackageAssignmentPolicyResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemAccessPackageAssignmentPolicyResource();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("accessPackageDisplayName", AccessPackageDisplayName);
             writer.WriteStringValue("accessPackageId", AccessPackageId);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAzureRoleResource.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAzureRoleResource.cs
index ddfba73b398..a7a01d02ccd 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAzureRoleResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemAzureRoleResource.cs
@@ -42,7 +42,7 @@ public AccessReviewInstanceDecisionItemAzureRoleResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemAzureRoleResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemAzureRoleResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemResource>("scope", Scope);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemCollectionResponse.cs
index b137d7ce83b..f0f738ccd5a 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessReviewInstanceDecisionItemCollectionResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemResource.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemResource.cs
index df20c97c498..54c89de795e 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemResource.cs
@@ -100,7 +100,7 @@ public AccessReviewInstanceDecisionItemResource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemServicePrincipalResource.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemServicePrincipalResource.cs
index 172431626e4..4faa67f908a 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemServicePrincipalResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewInstanceDecisionItemServicePrincipalResource.cs
@@ -42,7 +42,7 @@ public AccessReviewInstanceDecisionItemServicePrincipalResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemServicePrincipalResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItemServicePrincipalResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appId", AppId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientItem.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientItem.cs
index 47b5b6978db..34d5793aec4 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientItem.cs
@@ -84,7 +84,7 @@ public AccessReviewNotificationRecipientItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewNotificationRecipientItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewNotificationRecipientItem();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessReviewNotificationRecipientScope>("notificationRecipientScope", NotificationRecipientScope);
             writer.WriteStringValue("notificationTemplateType", NotificationTemplateType);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientQueryScope.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientQueryScope.cs
index e843f8badba..2a1132f5af0 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientQueryScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientQueryScope.cs
@@ -74,7 +74,7 @@ public AccessReviewNotificationRecipientQueryScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewNotificationRecipientQueryScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewNotificationRecipientQueryScope();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("query", Query);
             writer.WriteStringValue("queryRoot", QueryRoot);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientScope.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientScope.cs
index 02ea4c4ad91..12458e07a93 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewNotificationRecipientScope.cs
@@ -52,7 +52,7 @@ public AccessReviewNotificationRecipientScope()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewNotificationRecipientScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewQueryScope.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewQueryScope.cs
index f0f8316fdf0..87072a52228 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewQueryScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewQueryScope.cs
@@ -74,7 +74,7 @@ public AccessReviewQueryScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewQueryScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("query", Query);
             writer.WriteStringValue("queryRoot", QueryRoot);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewRecommendationInsightSetting.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewRecommendationInsightSetting.cs
index cb39bf7c8ab..7fd2c243a51 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewRecommendationInsightSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewRecommendationInsightSetting.cs
@@ -52,7 +52,7 @@ public AccessReviewRecommendationInsightSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewRecommendationInsightSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewReviewer.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewReviewer.cs
index f52c7a3c2fe..cfba7fcb89f 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewReviewer.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewReviewer.cs
@@ -57,7 +57,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewReviewer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewReviewer();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerCollectionResponse.cs
index f043b9855b1..80d8c18b412 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessReviewReviewerCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewReviewerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewReviewerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewReviewer>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerScope.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerScope.cs
index b71446b4e4e..28eebddfc91 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewReviewerScope.cs
@@ -100,7 +100,7 @@ public AccessReviewReviewerScope()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewReviewerScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewReviewerScope();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("query", Query);
             writer.WriteStringValue("queryRoot", QueryRoot);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinition.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinition.cs
index e2090f7cc6b..0612fedff3c 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinition.cs
@@ -239,7 +239,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewScheduleDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewScheduleDefinition();
         }
         /// <summary>
@@ -273,7 +273,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewNotificationRecipientItem>("additionalNotificationRecipients", AdditionalNotificationRecipients);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserIdentity>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinitionCollectionResponse.cs
index bc012ba8eb3..ddca1cab39b 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessReviewScheduleDefinitionCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewScheduleDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewScheduleDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewScheduleDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleSettings.cs
index 40e0ebea862..56c196406a1 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewScheduleSettings.cs
@@ -170,7 +170,7 @@ public AccessReviewScheduleSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewScheduleSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewScheduleSettings();
         }
         /// <summary>
@@ -203,7 +203,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewApplyAction>("applyActions", ApplyActions);
             writer.WriteBoolValue("autoApplyDecisionsEnabled", AutoApplyDecisionsEnabled);
             writer.WriteBoolValue("decisionHistoriesForReviewersEnabled", DecisionHistoriesForReviewersEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewScope.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewScope.cs
index 8d07e5f9b44..b17e4ec8367 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewScope.cs
@@ -52,7 +52,7 @@ public AccessReviewScope()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewSet.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewSet.cs
index d74428ed817..e30fa114be6 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewSet.cs
@@ -51,7 +51,7 @@ public partial class AccessReviewSet : global::Microsoft.Graph.Models.Entity, IP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewSet();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewScheduleDefinition>("definitions", Definitions);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewHistoryDefinition>("historyDefinitions", HistoryDefinitions);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewStage.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewStage.cs
index 3b39987427a..b3231be7df3 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewStage.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewStage.cs
@@ -95,7 +95,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewStage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewStage();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewInstanceDecisionItem>("decisions", Decisions);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewStageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewStageCollectionResponse.cs
index 9454a98675b..1a059bb2026 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewStageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewStageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AccessReviewStageCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AccessReviewStageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewStageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewStage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AccessReviewStageSettings.cs b/src/Microsoft.Graph/Generated/Models/AccessReviewStageSettings.cs
index cf10c580434..b734fc9bb17 100644
--- a/src/Microsoft.Graph/Generated/Models/AccessReviewStageSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccessReviewStageSettings.cs
@@ -160,7 +160,7 @@ public AccessReviewStageSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccessReviewStageSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AccessReviewStageSettings();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("decisionsThatWillMoveToNextStage", DecisionsThatWillMoveToNextStage);
             writer.WriteCollectionOfPrimitiveValues<string>("dependsOn", DependsOn);
             writer.WriteIntValue("durationInDays", DurationInDays);
diff --git a/src/Microsoft.Graph/Generated/Models/AccountTargetContent.cs b/src/Microsoft.Graph/Generated/Models/AccountTargetContent.cs
index 860842d3509..913f016763d 100644
--- a/src/Microsoft.Graph/Generated/Models/AccountTargetContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/AccountTargetContent.cs
@@ -58,7 +58,7 @@ public AccountTargetContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AccountTargetContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -85,7 +85,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AccountTargetContentType>("type", Type);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ActionResultPart.cs b/src/Microsoft.Graph/Generated/Models/ActionResultPart.cs
index 8eee4c47b42..442431e41f1 100644
--- a/src/Microsoft.Graph/Generated/Models/ActionResultPart.cs
+++ b/src/Microsoft.Graph/Generated/Models/ActionResultPart.cs
@@ -68,7 +68,7 @@ public ActionResultPart()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ActionResultPart CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ActivitiesContainer.cs b/src/Microsoft.Graph/Generated/Models/ActivitiesContainer.cs
index 56280a954be..9c2058161ad 100644
--- a/src/Microsoft.Graph/Generated/Models/ActivitiesContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/ActivitiesContainer.cs
@@ -35,7 +35,7 @@ public partial class ActivitiesContainer : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ActivitiesContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ActivitiesContainer();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentActivity>("contentActivities", ContentActivities);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicy.cs b/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicy.cs
index 05612c4569c..d651fcb76cd 100644
--- a/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicy.cs
@@ -26,7 +26,7 @@ public ActivityBasedTimeoutPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicyCollectionResponse.cs
index 0ab2611c804..9acde63a1cc 100644
--- a/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ActivityBasedTimeoutPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ActivityBasedTimeoutPolicyCollectionResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ActivityHistoryItem.cs b/src/Microsoft.Graph/Generated/Models/ActivityHistoryItem.cs
index 3381da50b65..83c3c75bdd6 100644
--- a/src/Microsoft.Graph/Generated/Models/ActivityHistoryItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ActivityHistoryItem.cs
@@ -93,7 +93,7 @@ public string UserTimezone
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ActivityHistoryItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ActivityHistoryItem();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("activeDurationSeconds", ActiveDurationSeconds);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserActivity>("activity", Activity);
diff --git a/src/Microsoft.Graph/Generated/Models/ActivityHistoryItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ActivityHistoryItemCollectionResponse.cs
index 057e10eec45..b4d5145e294 100644
--- a/src/Microsoft.Graph/Generated/Models/ActivityHistoryItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ActivityHistoryItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ActivityHistoryItemCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ActivityHistoryItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ActivityHistoryItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActivityHistoryItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ActivityMetadata.cs b/src/Microsoft.Graph/Generated/Models/ActivityMetadata.cs
index 4aec36dc8e8..ef57b2e780d 100644
--- a/src/Microsoft.Graph/Generated/Models/ActivityMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/ActivityMetadata.cs
@@ -58,7 +58,7 @@ public ActivityMetadata()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ActivityMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ActivityMetadata();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserActivityType>("activity", Activity);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AddIn.cs b/src/Microsoft.Graph/Generated/Models/AddIn.cs
index 6a6a8b31e07..630457f2a6e 100644
--- a/src/Microsoft.Graph/Generated/Models/AddIn.cs
+++ b/src/Microsoft.Graph/Generated/Models/AddIn.cs
@@ -90,7 +90,7 @@ public AddIn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AddIn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AddIn();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteGuidValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.KeyValue>("properties", Properties);
diff --git a/src/Microsoft.Graph/Generated/Models/AddLargeGalleryViewOperation.cs b/src/Microsoft.Graph/Generated/Models/AddLargeGalleryViewOperation.cs
index 52172b0d7a7..c31df337d59 100644
--- a/src/Microsoft.Graph/Generated/Models/AddLargeGalleryViewOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/AddLargeGalleryViewOperation.cs
@@ -19,7 +19,7 @@ public partial class AddLargeGalleryViewOperation : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AddLargeGalleryViewOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AddLargeGalleryViewOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AddressBookAccountTargetContent.cs b/src/Microsoft.Graph/Generated/Models/AddressBookAccountTargetContent.cs
index 06c6d05f80a..920b4494bee 100644
--- a/src/Microsoft.Graph/Generated/Models/AddressBookAccountTargetContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/AddressBookAccountTargetContent.cs
@@ -42,7 +42,7 @@ public AddressBookAccountTargetContent() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AddressBookAccountTargetContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AddressBookAccountTargetContent();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("accountTargetEmails", AccountTargetEmails);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Admin.cs b/src/Microsoft.Graph/Generated/Models/Admin.cs
index 00b3491c54b..41cb63663c1 100644
--- a/src/Microsoft.Graph/Generated/Models/Admin.cs
+++ b/src/Microsoft.Graph/Generated/Models/Admin.cs
@@ -148,7 +148,7 @@ public Admin()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Admin CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Admin();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Edge>("edge", Edge);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AdminMicrosoft365Apps>("microsoft365Apps", Microsoft365Apps);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AdminConsentRequestPolicy.cs b/src/Microsoft.Graph/Generated/Models/AdminConsentRequestPolicy.cs
index 434f49912b5..6cf956c40fa 100644
--- a/src/Microsoft.Graph/Generated/Models/AdminConsentRequestPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AdminConsentRequestPolicy.cs
@@ -65,7 +65,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AdminConsentRequestPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AdminConsentRequestPolicy();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteBoolValue("notifyReviewers", NotifyReviewers);
diff --git a/src/Microsoft.Graph/Generated/Models/AdminMicrosoft365Apps.cs b/src/Microsoft.Graph/Generated/Models/AdminMicrosoft365Apps.cs
index 3d8843e5b75..0b9f3da7b4c 100644
--- a/src/Microsoft.Graph/Generated/Models/AdminMicrosoft365Apps.cs
+++ b/src/Microsoft.Graph/Generated/Models/AdminMicrosoft365Apps.cs
@@ -35,7 +35,7 @@ public partial class AdminMicrosoft365Apps : global::Microsoft.Graph.Models.Enti
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AdminMicrosoft365Apps CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AdminMicrosoft365Apps();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.M365AppsInstallationOptions>("installationOptions", InstallationOptions);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AdminReportSettings.cs b/src/Microsoft.Graph/Generated/Models/AdminReportSettings.cs
index 6b3642f0d3f..49e04d6e305 100644
--- a/src/Microsoft.Graph/Generated/Models/AdminReportSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AdminReportSettings.cs
@@ -25,7 +25,7 @@ public bool? DisplayConcealedNames
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AdminReportSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AdminReportSettings();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("displayConcealedNames", DisplayConcealedNames);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AdministrativeUnit.cs b/src/Microsoft.Graph/Generated/Models/AdministrativeUnit.cs
index 45c95345574..4118d3a45ea 100644
--- a/src/Microsoft.Graph/Generated/Models/AdministrativeUnit.cs
+++ b/src/Microsoft.Graph/Generated/Models/AdministrativeUnit.cs
@@ -176,7 +176,7 @@ public AdministrativeUnit() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AdministrativeUnit CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AdministrativeUnit();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AdministrativeUnitCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AdministrativeUnitCollectionResponse.cs
index 4cd05bca3fe..5e4295c2daa 100644
--- a/src/Microsoft.Graph/Generated/Models/AdministrativeUnitCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AdministrativeUnitCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AdministrativeUnitCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AdministrativeUnitCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AdministrativeUnitCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AdministrativeUnit>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AggregationOption.cs b/src/Microsoft.Graph/Generated/Models/AggregationOption.cs
index aa939017b4a..39303a944b6 100644
--- a/src/Microsoft.Graph/Generated/Models/AggregationOption.cs
+++ b/src/Microsoft.Graph/Generated/Models/AggregationOption.cs
@@ -90,7 +90,7 @@ public AggregationOption()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AggregationOption CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AggregationOption();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BucketAggregationDefinition>("bucketDefinition", BucketDefinition);
             writer.WriteStringValue("field", Field);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Agreement.cs b/src/Microsoft.Graph/Generated/Models/Agreement.cs
index cef602e113b..ca9c4e79719 100644
--- a/src/Microsoft.Graph/Generated/Models/Agreement.cs
+++ b/src/Microsoft.Graph/Generated/Models/Agreement.cs
@@ -117,7 +117,7 @@ public TimeSpan? UserReacceptRequiredFrequency
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Agreement CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Agreement();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AgreementAcceptance>("acceptances", Acceptances);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementAcceptance.cs b/src/Microsoft.Graph/Generated/Models/AgreementAcceptance.cs
index 30dd3ae687d..270da43b498 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementAcceptance.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementAcceptance.cs
@@ -197,7 +197,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementAcceptance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementAcceptance();
         }
         /// <summary>
@@ -229,7 +229,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("agreementFileId", AgreementFileId);
             writer.WriteStringValue("agreementId", AgreementId);
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementAcceptanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AgreementAcceptanceCollectionResponse.cs
index 65e0691d2c3..352d0f2517d 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementAcceptanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementAcceptanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AgreementAcceptanceCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementAcceptanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementAcceptanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AgreementAcceptance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AgreementCollectionResponse.cs
index 9d8cbc7f5b2..ad55c8f209a 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AgreementCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Agreement>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementFile.cs b/src/Microsoft.Graph/Generated/Models/AgreementFile.cs
index 748bda1330c..cfddc1c194b 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementFile.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementFile.cs
@@ -35,7 +35,7 @@ public partial class AgreementFile : global::Microsoft.Graph.Models.AgreementFil
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementFile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementFile();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AgreementFileLocalization>("localizations", Localizations);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementFileData.cs b/src/Microsoft.Graph/Generated/Models/AgreementFileData.cs
index 78de34f4984..35c73c12cd5 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementFileData.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementFileData.cs
@@ -68,7 +68,7 @@ public AgreementFileData()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AgreementFileData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementFileData();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("data", Data);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementFileLocalization.cs b/src/Microsoft.Graph/Generated/Models/AgreementFileLocalization.cs
index a5fe4c60b21..a8d01275070 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementFileLocalization.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementFileLocalization.cs
@@ -35,7 +35,7 @@ public partial class AgreementFileLocalization : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementFileLocalization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementFileLocalization();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AgreementFileVersion>("versions", Versions);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementFileLocalizationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AgreementFileLocalizationCollectionResponse.cs
index ce09e6841b0..36761c0ed12 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementFileLocalizationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementFileLocalizationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AgreementFileLocalizationCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementFileLocalizationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementFileLocalizationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AgreementFileLocalization>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementFileProperties.cs b/src/Microsoft.Graph/Generated/Models/AgreementFileProperties.cs
index 824f0798ad2..c75639138a6 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementFileProperties.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementFileProperties.cs
@@ -101,7 +101,7 @@ public string Language
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementFileProperties CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -134,7 +134,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementFileVersion.cs b/src/Microsoft.Graph/Generated/Models/AgreementFileVersion.cs
index 199f60179a1..955df4a9263 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementFileVersion.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementFileVersion.cs
@@ -19,7 +19,7 @@ public partial class AgreementFileVersion : global::Microsoft.Graph.Models.Agree
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementFileVersion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementFileVersion();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AgreementFileVersionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AgreementFileVersionCollectionResponse.cs
index c59384a623e..b3f4cff7557 100644
--- a/src/Microsoft.Graph/Generated/Models/AgreementFileVersionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AgreementFileVersionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AgreementFileVersionCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AgreementFileVersionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AgreementFileVersionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AgreementFileVersion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteraction.cs b/src/Microsoft.Graph/Generated/Models/AiInteraction.cs
index a33fc32792a..285cdc319c7 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteraction.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteraction.cs
@@ -223,7 +223,7 @@ public string SessionId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AiInteraction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteraction();
         }
         /// <summary>
@@ -256,7 +256,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appClass", AppClass);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AiInteractionAttachment>("attachments", Attachments);
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteractionAttachment.cs b/src/Microsoft.Graph/Generated/Models/AiInteractionAttachment.cs
index 88c402bb0ab..51247c7973d 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteractionAttachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteractionAttachment.cs
@@ -132,7 +132,7 @@ public AiInteractionAttachment()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AiInteractionAttachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteractionAttachment();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("attachmentId", AttachmentId);
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteractionContext.cs b/src/Microsoft.Graph/Generated/Models/AiInteractionContext.cs
index 58ad51c8426..56132ed7b57 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteractionContext.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteractionContext.cs
@@ -100,7 +100,7 @@ public AiInteractionContext()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AiInteractionContext CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteractionContext();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contextReference", ContextReference);
             writer.WriteStringValue("contextType", ContextType);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteractionHistory.cs b/src/Microsoft.Graph/Generated/Models/AiInteractionHistory.cs
index c5dc08e92b6..3623e54366f 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteractionHistory.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteractionHistory.cs
@@ -19,7 +19,7 @@ public partial class AiInteractionHistory : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AiInteractionHistory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteractionHistory();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteractionLink.cs b/src/Microsoft.Graph/Generated/Models/AiInteractionLink.cs
index b2de414be89..d7c057551c6 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteractionLink.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteractionLink.cs
@@ -100,7 +100,7 @@ public AiInteractionLink()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AiInteractionLink CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteractionLink();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("linkType", LinkType);
             writer.WriteStringValue("linkUrl", LinkUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteractionMention.cs b/src/Microsoft.Graph/Generated/Models/AiInteractionMention.cs
index 6bb8e7eab8c..1d79f6fb7b5 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteractionMention.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteractionMention.cs
@@ -90,7 +90,7 @@ public AiInteractionMention()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AiInteractionMention CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteractionMention();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AiInteractionMentionedIdentitySet>("mentioned", Mentioned);
             writer.WriteIntValue("mentionId", MentionId);
             writer.WriteStringValue("mentionText", MentionText);
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteractionMentionedIdentitySet.cs b/src/Microsoft.Graph/Generated/Models/AiInteractionMentionedIdentitySet.cs
index de882b5839d..59cb2d9f646 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteractionMentionedIdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteractionMentionedIdentitySet.cs
@@ -58,7 +58,7 @@ public AiInteractionMentionedIdentitySet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AiInteractionMentionedIdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteractionMentionedIdentitySet();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkConversationIdentity>("conversation", Conversation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkTagIdentity>("tag", Tag);
diff --git a/src/Microsoft.Graph/Generated/Models/AiInteractionPlugin.cs b/src/Microsoft.Graph/Generated/Models/AiInteractionPlugin.cs
index 88f7c3bc28a..987b0eada08 100644
--- a/src/Microsoft.Graph/Generated/Models/AiInteractionPlugin.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiInteractionPlugin.cs
@@ -100,7 +100,7 @@ public AiInteractionPlugin()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AiInteractionPlugin CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiInteractionPlugin();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("identifier", Identifier);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AiUser.cs b/src/Microsoft.Graph/Generated/Models/AiUser.cs
index 230d9d8deb1..1e50bc54465 100644
--- a/src/Microsoft.Graph/Generated/Models/AiUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/AiUser.cs
@@ -35,7 +35,7 @@ public partial class AiUser : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AiUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AiUser();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AiInteractionHistory>("interactionHistory", InteractionHistory);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AirPrintSettings.cs b/src/Microsoft.Graph/Generated/Models/AirPrintSettings.cs
index 47226edb8cf..2e3c3ffe92e 100644
--- a/src/Microsoft.Graph/Generated/Models/AirPrintSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/AirPrintSettings.cs
@@ -58,7 +58,7 @@ public AirPrintSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AirPrintSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AirPrintSettings();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IncompatiblePrinterSettings>("incompatiblePrinters", IncompatiblePrinters);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Album.cs b/src/Microsoft.Graph/Generated/Models/Album.cs
index 770fc8f5bb0..f99dbd40a64 100644
--- a/src/Microsoft.Graph/Generated/Models/Album.cs
+++ b/src/Microsoft.Graph/Generated/Models/Album.cs
@@ -68,7 +68,7 @@ public Album()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Album CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Album();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("coverImageItemId", CoverImageItemId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Alert.cs b/src/Microsoft.Graph/Generated/Models/Alert.cs
index c8ac1cd78cb..eab445e5679 100644
--- a/src/Microsoft.Graph/Generated/Models/Alert.cs
+++ b/src/Microsoft.Graph/Generated/Models/Alert.cs
@@ -553,7 +553,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Alert CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Alert();
         }
         /// <summary>
@@ -611,7 +611,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("activityGroupName", ActivityGroupName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AlertDetection>("alertDetections", AlertDetections);
diff --git a/src/Microsoft.Graph/Generated/Models/AlertCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AlertCollectionResponse.cs
index e93f0810cb9..e187c998c1c 100644
--- a/src/Microsoft.Graph/Generated/Models/AlertCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AlertCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AlertCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AlertCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AlertCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Alert>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AlertDetection.cs b/src/Microsoft.Graph/Generated/Models/AlertDetection.cs
index 8c3967bc36b..a0b5fb787a9 100644
--- a/src/Microsoft.Graph/Generated/Models/AlertDetection.cs
+++ b/src/Microsoft.Graph/Generated/Models/AlertDetection.cs
@@ -100,7 +100,7 @@ public AlertDetection()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AlertDetection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AlertDetection();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("detectionType", DetectionType);
             writer.WriteStringValue("method", Method);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/AlertHistoryState.cs b/src/Microsoft.Graph/Generated/Models/AlertHistoryState.cs
index e1b7582a10e..51df508a074 100644
--- a/src/Microsoft.Graph/Generated/Models/AlertHistoryState.cs
+++ b/src/Microsoft.Graph/Generated/Models/AlertHistoryState.cs
@@ -134,7 +134,7 @@ public AlertHistoryState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AlertHistoryState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AlertHistoryState();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appId", AppId);
             writer.WriteStringValue("assignedTo", AssignedTo);
             writer.WriteCollectionOfPrimitiveValues<string>("comments", Comments);
diff --git a/src/Microsoft.Graph/Generated/Models/AlertTrigger.cs b/src/Microsoft.Graph/Generated/Models/AlertTrigger.cs
index 62b5199b541..c60834f023b 100644
--- a/src/Microsoft.Graph/Generated/Models/AlertTrigger.cs
+++ b/src/Microsoft.Graph/Generated/Models/AlertTrigger.cs
@@ -100,7 +100,7 @@ public AlertTrigger()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AlertTrigger CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AlertTrigger();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/AllDeviceRegistrationMembership.cs b/src/Microsoft.Graph/Generated/Models/AllDeviceRegistrationMembership.cs
index 26f62e760b2..00240d7d816 100644
--- a/src/Microsoft.Graph/Generated/Models/AllDeviceRegistrationMembership.cs
+++ b/src/Microsoft.Graph/Generated/Models/AllDeviceRegistrationMembership.cs
@@ -26,7 +26,7 @@ public AllDeviceRegistrationMembership() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AllDeviceRegistrationMembership CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AllDeviceRegistrationMembership();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AllDevicesAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/AllDevicesAssignmentTarget.cs
index c335d6b94aa..61fb3a7b7b9 100644
--- a/src/Microsoft.Graph/Generated/Models/AllDevicesAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/AllDevicesAssignmentTarget.cs
@@ -27,7 +27,7 @@ public AllDevicesAssignmentTarget() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AllDevicesAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AllDevicesAssignmentTarget();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AllLicensedUsersAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/AllLicensedUsersAssignmentTarget.cs
index 17fa3970819..a628f1f3528 100644
--- a/src/Microsoft.Graph/Generated/Models/AllLicensedUsersAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/AllLicensedUsersAssignmentTarget.cs
@@ -27,7 +27,7 @@ public AllLicensedUsersAssignmentTarget() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AllLicensedUsersAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AllLicensedUsersAssignmentTarget();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AllowedValue.cs b/src/Microsoft.Graph/Generated/Models/AllowedValue.cs
index b785af878e6..94875a421ed 100644
--- a/src/Microsoft.Graph/Generated/Models/AllowedValue.cs
+++ b/src/Microsoft.Graph/Generated/Models/AllowedValue.cs
@@ -25,7 +25,7 @@ public bool? IsActive
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AllowedValue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AllowedValue();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isActive", IsActive);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AllowedValueCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AllowedValueCollectionResponse.cs
index 7bb657e2dfa..eb5e5acc32d 100644
--- a/src/Microsoft.Graph/Generated/Models/AllowedValueCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AllowedValueCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AllowedValueCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AllowedValueCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AllowedValueCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AllowedValue>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AlterationResponse.cs b/src/Microsoft.Graph/Generated/Models/AlterationResponse.cs
index d85a4fc293e..5b0df9be2c8 100644
--- a/src/Microsoft.Graph/Generated/Models/AlterationResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AlterationResponse.cs
@@ -90,7 +90,7 @@ public AlterationResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AlterationResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AlterationResponse();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("originalQueryString", OriginalQueryString);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SearchAlteration>("queryAlteration", QueryAlteration);
diff --git a/src/Microsoft.Graph/Generated/Models/AlteredQueryToken.cs b/src/Microsoft.Graph/Generated/Models/AlteredQueryToken.cs
index 024a88d72e5..f87e0745f83 100644
--- a/src/Microsoft.Graph/Generated/Models/AlteredQueryToken.cs
+++ b/src/Microsoft.Graph/Generated/Models/AlteredQueryToken.cs
@@ -80,7 +80,7 @@ public AlteredQueryToken()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AlteredQueryToken CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AlteredQueryToken();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("length", Length);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("offset", Offset);
diff --git a/src/Microsoft.Graph/Generated/Models/AlternativeSecurityId.cs b/src/Microsoft.Graph/Generated/Models/AlternativeSecurityId.cs
index 55454508d5c..53ef3d396fd 100644
--- a/src/Microsoft.Graph/Generated/Models/AlternativeSecurityId.cs
+++ b/src/Microsoft.Graph/Generated/Models/AlternativeSecurityId.cs
@@ -90,7 +90,7 @@ public AlternativeSecurityId()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AlternativeSecurityId CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AlternativeSecurityId();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("identityProvider", IdentityProvider);
             writer.WriteByteArrayValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidCompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/AndroidCompliancePolicy.cs
index afe3d65ec35..96ad62c60b2 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidCompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidCompliancePolicy.cs
@@ -183,7 +183,7 @@ public AndroidCompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidCompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidCompliancePolicy();
         }
         /// <summary>
@@ -223,7 +223,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("deviceThreatProtectionEnabled", DeviceThreatProtectionEnabled);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DeviceThreatProtectionLevel>("deviceThreatProtectionRequiredSecurityLevel", DeviceThreatProtectionRequiredSecurityLevel);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidCustomConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AndroidCustomConfiguration.cs
index 2b7dde8f2dc..b23f52aaf01 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidCustomConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidCustomConfiguration.cs
@@ -43,7 +43,7 @@ public AndroidCustomConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidCustomConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidCustomConfiguration();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OmaSetting>("omaSettings", OmaSettings);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidGeneralDeviceConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AndroidGeneralDeviceConfiguration.cs
index 43b0f70efc5..147d2474ce4 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidGeneralDeviceConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidGeneralDeviceConfiguration.cs
@@ -365,7 +365,7 @@ public AndroidGeneralDeviceConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidGeneralDeviceConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidGeneralDeviceConfiguration();
         }
         /// <summary>
@@ -432,7 +432,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("appsBlockClipboardSharing", AppsBlockClipboardSharing);
             writer.WriteBoolValue("appsBlockCopyPaste", AppsBlockCopyPaste);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidLobApp.cs b/src/Microsoft.Graph/Generated/Models/AndroidLobApp.cs
index c05bb9d52ef..baa9cfcce4f 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidLobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidLobApp.cs
@@ -91,7 +91,7 @@ public AndroidLobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidLobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidLobApp();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AndroidMinimumOperatingSystem>("minimumSupportedOperatingSystem", MinimumSupportedOperatingSystem);
             writer.WriteStringValue("packageId", PackageId);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidLobAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AndroidLobAppCollectionResponse.cs
index c3159cff2e2..e2c645976cb 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidLobAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidLobAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AndroidLobAppCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidLobAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidLobAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AndroidLobApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtection.cs b/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtection.cs
index a6ac252858c..6111f35d0aa 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtection.cs
@@ -147,7 +147,7 @@ public AndroidManagedAppProtection() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidManagedAppProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidManagedAppProtection();
         }
         /// <summary>
@@ -176,7 +176,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
             writer.WriteStringValue("customBrowserDisplayName", CustomBrowserDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtectionCollectionResponse.cs
index f40b2c8d5f0..6ddb490dbce 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidManagedAppProtectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AndroidManagedAppProtectionCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidManagedAppProtectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidManagedAppProtectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AndroidManagedAppProtection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidManagedAppRegistration.cs b/src/Microsoft.Graph/Generated/Models/AndroidManagedAppRegistration.cs
index 1113333f3b0..c758625be15 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidManagedAppRegistration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidManagedAppRegistration.cs
@@ -27,7 +27,7 @@ public AndroidManagedAppRegistration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidManagedAppRegistration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidManagedAppRegistration();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidMinimumOperatingSystem.cs b/src/Microsoft.Graph/Generated/Models/AndroidMinimumOperatingSystem.cs
index 62bd3da2e1d..b0d31f54640 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidMinimumOperatingSystem.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidMinimumOperatingSystem.cs
@@ -149,7 +149,7 @@ public AndroidMinimumOperatingSystem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AndroidMinimumOperatingSystem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidMinimumOperatingSystem();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("v10_0", V100);
             writer.WriteBoolValue("v11_0", V110);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidMobileAppIdentifier.cs b/src/Microsoft.Graph/Generated/Models/AndroidMobileAppIdentifier.cs
index 6ffc751d2d4..1ced2d10172 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidMobileAppIdentifier.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidMobileAppIdentifier.cs
@@ -43,7 +43,7 @@ public AndroidMobileAppIdentifier() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidMobileAppIdentifier CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidMobileAppIdentifier();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("packageId", PackageId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidStoreApp.cs b/src/Microsoft.Graph/Generated/Models/AndroidStoreApp.cs
index 33a77b8db1b..ccbf0926b6d 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidStoreApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidStoreApp.cs
@@ -75,7 +75,7 @@ public AndroidStoreApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidStoreApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidStoreApp();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appStoreUrl", AppStoreUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AndroidMinimumOperatingSystem>("minimumSupportedOperatingSystem", MinimumSupportedOperatingSystem);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidStoreAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AndroidStoreAppCollectionResponse.cs
index d511bcfbf91..0855c5730fb 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidStoreAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidStoreAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AndroidStoreAppCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidStoreAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidStoreAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AndroidStoreApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCompliancePolicy.cs
index 8e7165552dd..27f5768255e 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCompliancePolicy.cs
@@ -183,7 +183,7 @@ public AndroidWorkProfileCompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidWorkProfileCompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidWorkProfileCompliancePolicy();
         }
         /// <summary>
@@ -223,7 +223,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("deviceThreatProtectionEnabled", DeviceThreatProtectionEnabled);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DeviceThreatProtectionLevel>("deviceThreatProtectionRequiredSecurityLevel", DeviceThreatProtectionRequiredSecurityLevel);
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCustomConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCustomConfiguration.cs
index a2150353684..6af089fc72b 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCustomConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileCustomConfiguration.cs
@@ -43,7 +43,7 @@ public AndroidWorkProfileCustomConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidWorkProfileCustomConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidWorkProfileCustomConfiguration();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OmaSetting>("omaSettings", OmaSettings);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileGeneralDeviceConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileGeneralDeviceConfiguration.cs
index ba31c2b80f1..db356fc5ba9 100644
--- a/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileGeneralDeviceConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AndroidWorkProfileGeneralDeviceConfiguration.cs
@@ -231,7 +231,7 @@ public AndroidWorkProfileGeneralDeviceConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AndroidWorkProfileGeneralDeviceConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AndroidWorkProfileGeneralDeviceConfiguration();
         }
         /// <summary>
@@ -284,7 +284,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("passwordBlockFingerprintUnlock", PasswordBlockFingerprintUnlock);
             writer.WriteBoolValue("passwordBlockTrustAgents", PasswordBlockTrustAgents);
diff --git a/src/Microsoft.Graph/Generated/Models/AnonymousGuestConversationMember.cs b/src/Microsoft.Graph/Generated/Models/AnonymousGuestConversationMember.cs
index cf5d410200f..140b5ffc766 100644
--- a/src/Microsoft.Graph/Generated/Models/AnonymousGuestConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/AnonymousGuestConversationMember.cs
@@ -42,7 +42,7 @@ public AnonymousGuestConversationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AnonymousGuestConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AnonymousGuestConversationMember();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("anonymousGuestId", AnonymousGuestId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ApiApplication.cs b/src/Microsoft.Graph/Generated/Models/ApiApplication.cs
index 1b54653421c..e4db8be2dbe 100644
--- a/src/Microsoft.Graph/Generated/Models/ApiApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApiApplication.cs
@@ -112,7 +112,7 @@ public ApiApplication()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ApiApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApiApplication();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("acceptMappedClaims", AcceptMappedClaims);
             writer.WriteCollectionOfPrimitiveValues<Guid?>("knownClientApplications", KnownClientApplications);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PermissionScope>("oauth2PermissionScopes", Oauth2PermissionScopes);
diff --git a/src/Microsoft.Graph/Generated/Models/ApiAuthenticationConfigurationBase.cs b/src/Microsoft.Graph/Generated/Models/ApiAuthenticationConfigurationBase.cs
index e81ab722eee..add029faf1c 100644
--- a/src/Microsoft.Graph/Generated/Models/ApiAuthenticationConfigurationBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApiAuthenticationConfigurationBase.cs
@@ -52,7 +52,7 @@ public ApiAuthenticationConfigurationBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ApiAuthenticationConfigurationBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppCatalogs.cs b/src/Microsoft.Graph/Generated/Models/AppCatalogs.cs
index e2c79d80d42..6f89dc32d05 100644
--- a/src/Microsoft.Graph/Generated/Models/AppCatalogs.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppCatalogs.cs
@@ -35,7 +35,7 @@ public partial class AppCatalogs : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppCatalogs CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppCatalogs();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsApp>("teamsApps", TeamsApps);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppConfigurationSettingItem.cs b/src/Microsoft.Graph/Generated/Models/AppConfigurationSettingItem.cs
index 5e003ca273d..70da12e3b9e 100644
--- a/src/Microsoft.Graph/Generated/Models/AppConfigurationSettingItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppConfigurationSettingItem.cs
@@ -91,7 +91,7 @@ public AppConfigurationSettingItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppConfigurationSettingItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppConfigurationSettingItem();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appConfigKey", AppConfigKey);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MdmAppConfigKeyType>("appConfigKeyType", AppConfigKeyType);
             writer.WriteStringValue("appConfigKeyValue", AppConfigKeyValue);
diff --git a/src/Microsoft.Graph/Generated/Models/AppConsentApprovalRoute.cs b/src/Microsoft.Graph/Generated/Models/AppConsentApprovalRoute.cs
index e513bf1a8b8..a02d5fb6404 100644
--- a/src/Microsoft.Graph/Generated/Models/AppConsentApprovalRoute.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppConsentApprovalRoute.cs
@@ -35,7 +35,7 @@ public partial class AppConsentApprovalRoute : global::Microsoft.Graph.Models.En
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppConsentApprovalRoute CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppConsentApprovalRoute();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppConsentRequest>("appConsentRequests", AppConsentRequests);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppConsentRequest.cs b/src/Microsoft.Graph/Generated/Models/AppConsentRequest.cs
index 7a3b9909b9c..87527d9b338 100644
--- a/src/Microsoft.Graph/Generated/Models/AppConsentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppConsentRequest.cs
@@ -83,7 +83,7 @@ public string AppId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppConsentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppConsentRequest();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appDisplayName", AppDisplayName);
             writer.WriteStringValue("appId", AppId);
diff --git a/src/Microsoft.Graph/Generated/Models/AppConsentRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AppConsentRequestCollectionResponse.cs
index b054e755be6..d4ccca4e722 100644
--- a/src/Microsoft.Graph/Generated/Models/AppConsentRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppConsentRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AppConsentRequestCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppConsentRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppConsentRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppConsentRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppConsentRequestScope.cs b/src/Microsoft.Graph/Generated/Models/AppConsentRequestScope.cs
index 45040369181..172133bc46c 100644
--- a/src/Microsoft.Graph/Generated/Models/AppConsentRequestScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppConsentRequestScope.cs
@@ -68,7 +68,7 @@ public AppConsentRequestScope()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppConsentRequestScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppConsentRequestScope();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AppHostedMediaConfig.cs b/src/Microsoft.Graph/Generated/Models/AppHostedMediaConfig.cs
index 7f6ae2855f7..a303c0579a3 100644
--- a/src/Microsoft.Graph/Generated/Models/AppHostedMediaConfig.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppHostedMediaConfig.cs
@@ -42,7 +42,7 @@ public AppHostedMediaConfig() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppHostedMediaConfig CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppHostedMediaConfig();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("blob", Blob);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppIdentity.cs b/src/Microsoft.Graph/Generated/Models/AppIdentity.cs
index b8107171423..3221169fb99 100644
--- a/src/Microsoft.Graph/Generated/Models/AppIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppIdentity.cs
@@ -116,7 +116,7 @@ public AppIdentity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppIdentity();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appId", AppId);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AppListItem.cs b/src/Microsoft.Graph/Generated/Models/AppListItem.cs
index f4368065d57..14eb775496c 100644
--- a/src/Microsoft.Graph/Generated/Models/AppListItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppListItem.cs
@@ -117,7 +117,7 @@ public AppListItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppListItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppListItem();
         }
         /// <summary>
@@ -141,7 +141,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appId", AppId);
             writer.WriteStringValue("appStoreUrl", AppStoreUrl);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/AppLogCollectionDownloadDetails.cs b/src/Microsoft.Graph/Generated/Models/AppLogCollectionDownloadDetails.cs
index 96270edbe44..7d15c9a0840 100644
--- a/src/Microsoft.Graph/Generated/Models/AppLogCollectionDownloadDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppLogCollectionDownloadDetails.cs
@@ -90,7 +90,7 @@ public AppLogCollectionDownloadDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppLogCollectionDownloadDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppLogCollectionDownloadDetails();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AppLogDecryptionAlgorithm>("appLogDecryptionAlgorithm", AppLogDecryptionAlgorithm);
             writer.WriteStringValue("decryptionKey", DecryptionKey);
             writer.WriteStringValue("downloadUrl", DownloadUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequest.cs b/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequest.cs
index c735b9da9b2..ba7c45aac05 100644
--- a/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequest.cs
@@ -64,7 +64,7 @@ public string ErrorMessage
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppLogCollectionRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppLogCollectionRequest();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteCollectionOfPrimitiveValues<string>("customLogFolders", CustomLogFolders);
diff --git a/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequestCollectionResponse.cs
index 1d38416796f..c7a6048844d 100644
--- a/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppLogCollectionRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AppLogCollectionRequestCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppLogCollectionRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppLogCollectionRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppLogCollectionRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppManagementApplicationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AppManagementApplicationConfiguration.cs
index c0d13e3bee9..3bbbe06a74e 100644
--- a/src/Microsoft.Graph/Generated/Models/AppManagementApplicationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppManagementApplicationConfiguration.cs
@@ -26,7 +26,7 @@ public AppManagementApplicationConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppManagementApplicationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppManagementApplicationConfiguration();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AppManagementConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AppManagementConfiguration.cs
index cb5fd36b6d7..e609072e30e 100644
--- a/src/Microsoft.Graph/Generated/Models/AppManagementConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppManagementConfiguration.cs
@@ -84,7 +84,7 @@ public AppManagementConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppManagementConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.KeyCredentialConfiguration>("keyCredentials", KeyCredentials);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PasswordCredentialConfiguration>("passwordCredentials", PasswordCredentials);
diff --git a/src/Microsoft.Graph/Generated/Models/AppManagementPolicy.cs b/src/Microsoft.Graph/Generated/Models/AppManagementPolicy.cs
index 5b54e3ac415..35157c8009e 100644
--- a/src/Microsoft.Graph/Generated/Models/AppManagementPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppManagementPolicy.cs
@@ -64,7 +64,7 @@ public AppManagementPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppManagementPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppManagementPolicy();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("appliesTo", AppliesTo);
             writer.WriteBoolValue("isEnabled", IsEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/AppManagementPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AppManagementPolicyCollectionResponse.cs
index 83c6fbfb4d4..611c3c323f8 100644
--- a/src/Microsoft.Graph/Generated/Models/AppManagementPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppManagementPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AppManagementPolicyCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppManagementPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppManagementPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppManagementPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppManagementServicePrincipalConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AppManagementServicePrincipalConfiguration.cs
index e4fbd24c55a..4dbe9971763 100644
--- a/src/Microsoft.Graph/Generated/Models/AppManagementServicePrincipalConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppManagementServicePrincipalConfiguration.cs
@@ -26,7 +26,7 @@ public AppManagementServicePrincipalConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppManagementServicePrincipalConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppManagementServicePrincipalConfiguration();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AppRole.cs b/src/Microsoft.Graph/Generated/Models/AppRole.cs
index 7a6e2410503..a1a48147a67 100644
--- a/src/Microsoft.Graph/Generated/Models/AppRole.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppRole.cs
@@ -144,7 +144,7 @@ public AppRole()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppRole CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppRole();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("allowedMemberTypes", AllowedMemberTypes);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AppRoleAssignment.cs b/src/Microsoft.Graph/Generated/Models/AppRoleAssignment.cs
index 5d96312cb46..961c6a4d1cd 100644
--- a/src/Microsoft.Graph/Generated/Models/AppRoleAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppRoleAssignment.cs
@@ -98,7 +98,7 @@ public AppRoleAssignment() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppRoleAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppRoleAssignment();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteGuidValue("appRoleId", AppRoleId);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AppRoleAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AppRoleAssignmentCollectionResponse.cs
index 057f71e2573..0521faccd23 100644
--- a/src/Microsoft.Graph/Generated/Models/AppRoleAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppRoleAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AppRoleAssignmentCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppRoleAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppRoleAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppRoleAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppScope.cs b/src/Microsoft.Graph/Generated/Models/AppScope.cs
index e2ef1be5b07..36631176f15 100644
--- a/src/Microsoft.Graph/Generated/Models/AppScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppScope.cs
@@ -51,7 +51,7 @@ public string Type
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppScope();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/AppleDeviceFeaturesConfigurationBase.cs b/src/Microsoft.Graph/Generated/Models/AppleDeviceFeaturesConfigurationBase.cs
index 1f4755985a9..b223cddea07 100644
--- a/src/Microsoft.Graph/Generated/Models/AppleDeviceFeaturesConfigurationBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppleDeviceFeaturesConfigurationBase.cs
@@ -27,7 +27,7 @@ public AppleDeviceFeaturesConfigurationBase() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppleDeviceFeaturesConfigurationBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AppleManagedIdentityProvider.cs b/src/Microsoft.Graph/Generated/Models/AppleManagedIdentityProvider.cs
index 81dee374513..89a61fe140a 100644
--- a/src/Microsoft.Graph/Generated/Models/AppleManagedIdentityProvider.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppleManagedIdentityProvider.cs
@@ -90,7 +90,7 @@ public AppleManagedIdentityProvider() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AppleManagedIdentityProvider CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppleManagedIdentityProvider();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("certificateData", CertificateData);
             writer.WriteStringValue("developerId", DeveloperId);
diff --git a/src/Microsoft.Graph/Generated/Models/ApplePushNotificationCertificate.cs b/src/Microsoft.Graph/Generated/Models/ApplePushNotificationCertificate.cs
index dcaf7a53d65..2fc048fc441 100644
--- a/src/Microsoft.Graph/Generated/Models/ApplePushNotificationCertificate.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApplePushNotificationCertificate.cs
@@ -128,7 +128,7 @@ public string TopicIdentifier
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApplePushNotificationCertificate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApplePushNotificationCertificate();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appleIdentifier", AppleIdentifier);
             writer.WriteStringValue("certificate", Certificate);
diff --git a/src/Microsoft.Graph/Generated/Models/Application.cs b/src/Microsoft.Graph/Generated/Models/Application.cs
index 31598134b4d..536bbd71a4a 100644
--- a/src/Microsoft.Graph/Generated/Models/Application.cs
+++ b/src/Microsoft.Graph/Generated/Models/Application.cs
@@ -734,7 +734,7 @@ public Application() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Application CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Application();
         }
         /// <summary>
@@ -801,7 +801,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AddIn>("addIns", AddIns);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ApiApplication>("api", Api);
diff --git a/src/Microsoft.Graph/Generated/Models/ApplicationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ApplicationCollectionResponse.cs
index da1d9798370..fdc8f2aee28 100644
--- a/src/Microsoft.Graph/Generated/Models/ApplicationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApplicationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ApplicationCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApplicationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApplicationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Application>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ApplicationContext.cs b/src/Microsoft.Graph/Generated/Models/ApplicationContext.cs
index b1c9aa43575..1ce55e8c652 100644
--- a/src/Microsoft.Graph/Generated/Models/ApplicationContext.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApplicationContext.cs
@@ -42,7 +42,7 @@ public ApplicationContext() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApplicationContext CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApplicationContext();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("includeApplications", IncludeApplications);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ApplicationEnforcedRestrictionsSessionControl.cs b/src/Microsoft.Graph/Generated/Models/ApplicationEnforcedRestrictionsSessionControl.cs
index 69514c5e9c5..d06b1d78439 100644
--- a/src/Microsoft.Graph/Generated/Models/ApplicationEnforcedRestrictionsSessionControl.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApplicationEnforcedRestrictionsSessionControl.cs
@@ -26,7 +26,7 @@ public ApplicationEnforcedRestrictionsSessionControl() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApplicationEnforcedRestrictionsSessionControl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApplicationEnforcedRestrictionsSessionControl();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ApplicationServicePrincipal.cs b/src/Microsoft.Graph/Generated/Models/ApplicationServicePrincipal.cs
index 4b8d1b0bde4..59732ede32f 100644
--- a/src/Microsoft.Graph/Generated/Models/ApplicationServicePrincipal.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApplicationServicePrincipal.cs
@@ -84,7 +84,7 @@ public ApplicationServicePrincipal()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ApplicationServicePrincipal CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApplicationServicePrincipal();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Application>("application", Application);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ServicePrincipal>("servicePrincipal", ServicePrincipal);
diff --git a/src/Microsoft.Graph/Generated/Models/ApplicationTemplate.cs b/src/Microsoft.Graph/Generated/Models/ApplicationTemplate.cs
index 643a2b10e9f..e7a0a67d542 100644
--- a/src/Microsoft.Graph/Generated/Models/ApplicationTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApplicationTemplate.cs
@@ -147,7 +147,7 @@ public List<string> SupportedSingleSignOnModes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApplicationTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApplicationTemplate();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("categories", Categories);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/ApplicationTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ApplicationTemplateCollectionResponse.cs
index ce4364f0e6e..9ad371c9f2b 100644
--- a/src/Microsoft.Graph/Generated/Models/ApplicationTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApplicationTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ApplicationTemplateCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApplicationTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApplicationTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ApplicationTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppliedConditionalAccessPolicy.cs b/src/Microsoft.Graph/Generated/Models/AppliedConditionalAccessPolicy.cs
index 327a16d15d1..c9cd6a955ba 100644
--- a/src/Microsoft.Graph/Generated/Models/AppliedConditionalAccessPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppliedConditionalAccessPolicy.cs
@@ -122,7 +122,7 @@ public AppliedConditionalAccessPolicy()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppliedConditionalAccessPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppliedConditionalAccessPolicy();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfPrimitiveValues<string>("enforcedGrantControls", EnforcedGrantControls);
             writer.WriteCollectionOfPrimitiveValues<string>("enforcedSessionControls", EnforcedSessionControls);
diff --git a/src/Microsoft.Graph/Generated/Models/Approval.cs b/src/Microsoft.Graph/Generated/Models/Approval.cs
index a94a080ec06..534b9f35009 100644
--- a/src/Microsoft.Graph/Generated/Models/Approval.cs
+++ b/src/Microsoft.Graph/Generated/Models/Approval.cs
@@ -35,7 +35,7 @@ public partial class Approval : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Approval CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Approval();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ApprovalStage>("stages", Stages);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ApprovalCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ApprovalCollectionResponse.cs
index 536e354c7e9..cc7f5a3f3de 100644
--- a/src/Microsoft.Graph/Generated/Models/ApprovalCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApprovalCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ApprovalCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApprovalCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApprovalCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Approval>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ApprovalSettings.cs b/src/Microsoft.Graph/Generated/Models/ApprovalSettings.cs
index ac72e39a648..1f5cbfd20d0 100644
--- a/src/Microsoft.Graph/Generated/Models/ApprovalSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApprovalSettings.cs
@@ -102,7 +102,7 @@ public ApprovalSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ApprovalSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApprovalSettings();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("approvalMode", ApprovalMode);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedApprovalStage>("approvalStages", ApprovalStages);
             writer.WriteBoolValue("isApprovalRequired", IsApprovalRequired);
diff --git a/src/Microsoft.Graph/Generated/Models/ApprovalStage.cs b/src/Microsoft.Graph/Generated/Models/ApprovalStage.cs
index 7d537cf0c95..ee9bb6a2dd0 100644
--- a/src/Microsoft.Graph/Generated/Models/ApprovalStage.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApprovalStage.cs
@@ -111,7 +111,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApprovalStage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApprovalStage();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("assignedToMe", AssignedToMe);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/ApprovalStageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ApprovalStageCollectionResponse.cs
index 39785e519b1..bea71ec32a0 100644
--- a/src/Microsoft.Graph/Generated/Models/ApprovalStageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ApprovalStageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ApprovalStageCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ApprovalStageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ApprovalStageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ApprovalStage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForMac.cs b/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForMac.cs
index f1fd8d30761..2013771b8e7 100644
--- a/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForMac.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForMac.cs
@@ -64,7 +64,7 @@ public AppsInstallationOptionsForMac()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppsInstallationOptionsForMac CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppsInstallationOptionsForMac();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isMicrosoft365AppsEnabled", IsMicrosoft365AppsEnabled);
             writer.WriteBoolValue("isSkypeForBusinessEnabled", IsSkypeForBusinessEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForWindows.cs b/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForWindows.cs
index c22a48df9b0..f0470b11c0e 100644
--- a/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForWindows.cs
+++ b/src/Microsoft.Graph/Generated/Models/AppsInstallationOptionsForWindows.cs
@@ -76,7 +76,7 @@ public AppsInstallationOptionsForWindows()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AppsInstallationOptionsForWindows CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AppsInstallationOptionsForWindows();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isMicrosoft365AppsEnabled", IsMicrosoft365AppsEnabled);
             writer.WriteBoolValue("isProjectEnabled", IsProjectEnabled);
             writer.WriteBoolValue("isSkypeForBusinessEnabled", IsSkypeForBusinessEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/ArchivedPrintJob.cs b/src/Microsoft.Graph/Generated/Models/ArchivedPrintJob.cs
index cb363f97d50..3f5554a3299 100644
--- a/src/Microsoft.Graph/Generated/Models/ArchivedPrintJob.cs
+++ b/src/Microsoft.Graph/Generated/Models/ArchivedPrintJob.cs
@@ -152,7 +152,7 @@ public ArchivedPrintJob()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ArchivedPrintJob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ArchivedPrintJob();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("acquiredByPrinter", AcquiredByPrinter);
             writer.WriteDateTimeOffsetValue("acquiredDateTime", AcquiredDateTime);
             writer.WriteDateTimeOffsetValue("completionDateTime", CompletionDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ArtifactQuery.cs b/src/Microsoft.Graph/Generated/Models/ArtifactQuery.cs
index 04de5c529cd..c181fa8cb74 100644
--- a/src/Microsoft.Graph/Generated/Models/ArtifactQuery.cs
+++ b/src/Microsoft.Graph/Generated/Models/ArtifactQuery.cs
@@ -74,7 +74,7 @@ public ArtifactQuery()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ArtifactQuery CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ArtifactQuery();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RestorableArtifact>("artifactType", ArtifactType);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("queryExpression", QueryExpression);
diff --git a/src/Microsoft.Graph/Generated/Models/AssignedLabel.cs b/src/Microsoft.Graph/Generated/Models/AssignedLabel.cs
index 228e35b2b13..afaaf77bc8b 100644
--- a/src/Microsoft.Graph/Generated/Models/AssignedLabel.cs
+++ b/src/Microsoft.Graph/Generated/Models/AssignedLabel.cs
@@ -84,7 +84,7 @@ public AssignedLabel()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AssignedLabel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AssignedLabel();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("labelId", LabelId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AssignedLicense.cs b/src/Microsoft.Graph/Generated/Models/AssignedLicense.cs
index 432f65d3d21..95ea941fa7d 100644
--- a/src/Microsoft.Graph/Generated/Models/AssignedLicense.cs
+++ b/src/Microsoft.Graph/Generated/Models/AssignedLicense.cs
@@ -74,7 +74,7 @@ public AssignedLicense()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AssignedLicense CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AssignedLicense();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<Guid?>("disabledPlans", DisabledPlans);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteGuidValue("skuId", SkuId);
diff --git a/src/Microsoft.Graph/Generated/Models/AssignedPlan.cs b/src/Microsoft.Graph/Generated/Models/AssignedPlan.cs
index 9a25c75bb4c..eec7cb37667 100644
--- a/src/Microsoft.Graph/Generated/Models/AssignedPlan.cs
+++ b/src/Microsoft.Graph/Generated/Models/AssignedPlan.cs
@@ -96,7 +96,7 @@ public AssignedPlan()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AssignedPlan CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AssignedPlan();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("assignedDateTime", AssignedDateTime);
             writer.WriteStringValue("capabilityStatus", CapabilityStatus);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AssignedTrainingInfo.cs b/src/Microsoft.Graph/Generated/Models/AssignedTrainingInfo.cs
index 0fa68245ce5..ba5c1730ded 100644
--- a/src/Microsoft.Graph/Generated/Models/AssignedTrainingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/AssignedTrainingInfo.cs
@@ -80,7 +80,7 @@ public AssignedTrainingInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AssignedTrainingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AssignedTrainingInfo();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("assignedUserCount", AssignedUserCount);
             writer.WriteIntValue("completedUserCount", CompletedUserCount);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AssignmentOrder.cs b/src/Microsoft.Graph/Generated/Models/AssignmentOrder.cs
index 3592a383686..7b2ba01ed54 100644
--- a/src/Microsoft.Graph/Generated/Models/AssignmentOrder.cs
+++ b/src/Microsoft.Graph/Generated/Models/AssignmentOrder.cs
@@ -68,7 +68,7 @@ public AssignmentOrder()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AssignmentOrder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AssignmentOrder();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("order", Order);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfo.cs b/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfo.cs
index a53d2f28cb9..6e0d4bbb3b4 100644
--- a/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfo.cs
@@ -19,7 +19,7 @@ public partial class AssociatedTeamInfo : global::Microsoft.Graph.Models.TeamInf
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AssociatedTeamInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AssociatedTeamInfo();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfoCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfoCollectionResponse.cs
index 7b007d7c829..c29231a5a66 100644
--- a/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfoCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AssociatedTeamInfoCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AssociatedTeamInfoCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AssociatedTeamInfoCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AssociatedTeamInfoCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssociatedTeamInfo>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Attachment.cs b/src/Microsoft.Graph/Generated/Models/Attachment.cs
index 9070629c87d..7a5a7aa8d0b 100644
--- a/src/Microsoft.Graph/Generated/Models/Attachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/Attachment.cs
@@ -69,7 +69,7 @@ public int? Size
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Attachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -100,7 +100,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteBoolValue("isInline", IsInline);
diff --git a/src/Microsoft.Graph/Generated/Models/AttachmentBase.cs b/src/Microsoft.Graph/Generated/Models/AttachmentBase.cs
index 050f370899e..f7308f93065 100644
--- a/src/Microsoft.Graph/Generated/Models/AttachmentBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttachmentBase.cs
@@ -63,7 +63,7 @@ public int? Size
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttachmentBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -91,7 +91,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AttachmentBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AttachmentBaseCollectionResponse.cs
index bb33b2d734f..5c8c2a47de2 100644
--- a/src/Microsoft.Graph/Generated/Models/AttachmentBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttachmentBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AttachmentBaseCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttachmentBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttachmentBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttachmentBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AttachmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AttachmentCollectionResponse.cs
index 1eb3bbd54bd..60ee271b5ee 100644
--- a/src/Microsoft.Graph/Generated/Models/AttachmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttachmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AttachmentCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttachmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttachmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Attachment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AttachmentInfo.cs b/src/Microsoft.Graph/Generated/Models/AttachmentInfo.cs
index 5ad69d755b5..38b9db842f5 100644
--- a/src/Microsoft.Graph/Generated/Models/AttachmentInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttachmentInfo.cs
@@ -96,7 +96,7 @@ public AttachmentInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttachmentInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttachmentInfo();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AttachmentType>("attachmentType", AttachmentType);
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/AttachmentItem.cs b/src/Microsoft.Graph/Generated/Models/AttachmentItem.cs
index a95cbf7d4a5..f70cdb0422a 100644
--- a/src/Microsoft.Graph/Generated/Models/AttachmentItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttachmentItem.cs
@@ -118,7 +118,7 @@ public AttachmentItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttachmentItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttachmentItem();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AttachmentType>("attachmentType", AttachmentType);
             writer.WriteStringValue("contentId", ContentId);
             writer.WriteStringValue("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/AttachmentSession.cs b/src/Microsoft.Graph/Generated/Models/AttachmentSession.cs
index 4953d93432e..357d0e1bf45 100644
--- a/src/Microsoft.Graph/Generated/Models/AttachmentSession.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttachmentSession.cs
@@ -57,7 +57,7 @@ public List<string> NextExpectedRanges
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttachmentSession CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttachmentSession();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("content", Content);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AttachmentSessionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AttachmentSessionCollectionResponse.cs
index ffac1199f32..ccc218cb000 100644
--- a/src/Microsoft.Graph/Generated/Models/AttachmentSessionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttachmentSessionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AttachmentSessionCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttachmentSessionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttachmentSessionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttachmentSession>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AttackSimulationOperation.cs b/src/Microsoft.Graph/Generated/Models/AttackSimulationOperation.cs
index 4ee86e3a9fe..9f0a3e9f51e 100644
--- a/src/Microsoft.Graph/Generated/Models/AttackSimulationOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttackSimulationOperation.cs
@@ -48,7 +48,7 @@ public string TenantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttackSimulationOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttackSimulationOperation();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("percentageCompleted", PercentageCompleted);
             writer.WriteStringValue("tenantId", TenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/AttackSimulationOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AttackSimulationOperationCollectionResponse.cs
index 836e9c914ae..e1599413b5d 100644
--- a/src/Microsoft.Graph/Generated/Models/AttackSimulationOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttackSimulationOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AttackSimulationOperationCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttackSimulationOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttackSimulationOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttackSimulationOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AttackSimulationRepeatOffender.cs b/src/Microsoft.Graph/Generated/Models/AttackSimulationRepeatOffender.cs
index d4060953dc0..f9c54c2f87f 100644
--- a/src/Microsoft.Graph/Generated/Models/AttackSimulationRepeatOffender.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttackSimulationRepeatOffender.cs
@@ -74,7 +74,7 @@ public AttackSimulationRepeatOffender()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttackSimulationRepeatOffender CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttackSimulationRepeatOffender();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttackSimulationUser>("attackSimulationUser", AttackSimulationUser);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("repeatOffenceCount", RepeatOffenceCount);
diff --git a/src/Microsoft.Graph/Generated/Models/AttackSimulationRoot.cs b/src/Microsoft.Graph/Generated/Models/AttackSimulationRoot.cs
index a092f20e7d8..3badb7877ff 100644
--- a/src/Microsoft.Graph/Generated/Models/AttackSimulationRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttackSimulationRoot.cs
@@ -147,7 +147,7 @@ public partial class AttackSimulationRoot : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttackSimulationRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttackSimulationRoot();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EndUserNotification>("endUserNotifications", EndUserNotifications);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LandingPage>("landingPages", LandingPages);
diff --git a/src/Microsoft.Graph/Generated/Models/AttackSimulationSimulationUserCoverage.cs b/src/Microsoft.Graph/Generated/Models/AttackSimulationSimulationUserCoverage.cs
index 1fd54b7abd1..a69e2817cfa 100644
--- a/src/Microsoft.Graph/Generated/Models/AttackSimulationSimulationUserCoverage.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttackSimulationSimulationUserCoverage.cs
@@ -92,7 +92,7 @@ public AttackSimulationSimulationUserCoverage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttackSimulationSimulationUserCoverage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttackSimulationSimulationUserCoverage();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttackSimulationUser>("attackSimulationUser", AttackSimulationUser);
             writer.WriteIntValue("clickCount", ClickCount);
             writer.WriteIntValue("compromisedCount", CompromisedCount);
diff --git a/src/Microsoft.Graph/Generated/Models/AttackSimulationTrainingUserCoverage.cs b/src/Microsoft.Graph/Generated/Models/AttackSimulationTrainingUserCoverage.cs
index 2061e4a6b02..9d388d4d55c 100644
--- a/src/Microsoft.Graph/Generated/Models/AttackSimulationTrainingUserCoverage.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttackSimulationTrainingUserCoverage.cs
@@ -84,7 +84,7 @@ public AttackSimulationTrainingUserCoverage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttackSimulationTrainingUserCoverage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttackSimulationTrainingUserCoverage();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttackSimulationUser>("attackSimulationUser", AttackSimulationUser);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserTrainingStatusInfo>("userTrainings", UserTrainings);
diff --git a/src/Microsoft.Graph/Generated/Models/AttackSimulationUser.cs b/src/Microsoft.Graph/Generated/Models/AttackSimulationUser.cs
index aae1f75f68e..b14011032f2 100644
--- a/src/Microsoft.Graph/Generated/Models/AttackSimulationUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttackSimulationUser.cs
@@ -100,7 +100,7 @@ public AttackSimulationUser()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttackSimulationUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttackSimulationUser();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("email", Email);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AttendanceInterval.cs b/src/Microsoft.Graph/Generated/Models/AttendanceInterval.cs
index 66adfad9ede..c00e6f39296 100644
--- a/src/Microsoft.Graph/Generated/Models/AttendanceInterval.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttendanceInterval.cs
@@ -70,7 +70,7 @@ public AttendanceInterval()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttendanceInterval CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttendanceInterval();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("durationInSeconds", DurationInSeconds);
             writer.WriteDateTimeOffsetValue("joinDateTime", JoinDateTime);
             writer.WriteDateTimeOffsetValue("leaveDateTime", LeaveDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AttendanceRecord.cs b/src/Microsoft.Graph/Generated/Models/AttendanceRecord.cs
index 89650510d58..a74ce881882 100644
--- a/src/Microsoft.Graph/Generated/Models/AttendanceRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttendanceRecord.cs
@@ -121,7 +121,7 @@ public int? TotalAttendanceInSeconds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttendanceRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttendanceRecord();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendanceInterval>("attendanceIntervals", AttendanceIntervals);
             writer.WriteStringValue("emailAddress", EmailAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/AttendanceRecordCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AttendanceRecordCollectionResponse.cs
index 91e7fbbfe90..2851909cebc 100644
--- a/src/Microsoft.Graph/Generated/Models/AttendanceRecordCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttendanceRecordCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AttendanceRecordCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttendanceRecordCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttendanceRecordCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendanceRecord>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Attendee.cs b/src/Microsoft.Graph/Generated/Models/Attendee.cs
index 85cc63fcbc2..4f13c4bfb7d 100644
--- a/src/Microsoft.Graph/Generated/Models/Attendee.cs
+++ b/src/Microsoft.Graph/Generated/Models/Attendee.cs
@@ -58,7 +58,7 @@ public Attendee() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Attendee CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Attendee();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("proposedNewTime", ProposedNewTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ResponseStatus>("status", Status);
diff --git a/src/Microsoft.Graph/Generated/Models/AttendeeAvailability.cs b/src/Microsoft.Graph/Generated/Models/AttendeeAvailability.cs
index 87aa3004e58..f519be2f701 100644
--- a/src/Microsoft.Graph/Generated/Models/AttendeeAvailability.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttendeeAvailability.cs
@@ -74,7 +74,7 @@ public AttendeeAvailability()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttendeeAvailability CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttendeeAvailability();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttendeeBase>("attendee", Attendee);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.FreeBusyStatus>("availability", Availability);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AttendeeBase.cs b/src/Microsoft.Graph/Generated/Models/AttendeeBase.cs
index c0beea84e33..dc6949304d9 100644
--- a/src/Microsoft.Graph/Generated/Models/AttendeeBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttendeeBase.cs
@@ -32,7 +32,7 @@ public AttendeeBase() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttendeeBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AttendeeType>("type", Type);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AttendeeNotificationInfo.cs b/src/Microsoft.Graph/Generated/Models/AttendeeNotificationInfo.cs
index 949e7d39644..fac2be15662 100644
--- a/src/Microsoft.Graph/Generated/Models/AttendeeNotificationInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttendeeNotificationInfo.cs
@@ -84,7 +84,7 @@ public AttendeeNotificationInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttendeeNotificationInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttendeeNotificationInfo();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("phoneNumber", PhoneNumber);
             writer.WriteStringValue("timeZone", TimeZone);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeDefinition.cs b/src/Microsoft.Graph/Generated/Models/AttributeDefinition.cs
index 16e41ec3a88..19a40b9f63b 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeDefinition.cs
@@ -174,7 +174,7 @@ public AttributeDefinition()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttributeDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeDefinition();
         }
         /// <summary>
@@ -206,7 +206,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("anchor", Anchor);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.StringKeyStringValuePair>("apiExpressions", ApiExpressions);
             writer.WriteBoolValue("caseExact", CaseExact);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeDefinitionMetadataEntry.cs b/src/Microsoft.Graph/Generated/Models/AttributeDefinitionMetadataEntry.cs
index e9e482ab7d6..e6b3b15108d 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeDefinitionMetadataEntry.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeDefinitionMetadataEntry.cs
@@ -74,7 +74,7 @@ public AttributeDefinitionMetadataEntry()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttributeDefinitionMetadataEntry CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeDefinitionMetadataEntry();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AttributeDefinitionMetadata>("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeMapping.cs b/src/Microsoft.Graph/Generated/Models/AttributeMapping.cs
index d45fb6b9366..930a96dd565 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeMapping.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeMapping.cs
@@ -124,7 +124,7 @@ public AttributeMapping()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttributeMapping CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeMapping();
         }
         /// <summary>
@@ -151,7 +151,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("defaultValue", DefaultValue);
             writer.WriteBoolValue("exportMissingReferences", ExportMissingReferences);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AttributeFlowBehavior>("flowBehavior", FlowBehavior);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchema.cs b/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchema.cs
index b516aef4582..a7666bdf11b 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchema.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchema.cs
@@ -35,7 +35,7 @@ public partial class AttributeMappingFunctionSchema : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttributeMappingFunctionSchema CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeMappingFunctionSchema();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeMappingParameterSchema>("parameters", Parameters);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchemaCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchemaCollectionResponse.cs
index fe97cf6ed16..ee1af480ba3 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchemaCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeMappingFunctionSchemaCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AttributeMappingFunctionSchemaCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttributeMappingFunctionSchemaCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeMappingFunctionSchemaCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeMappingFunctionSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeMappingParameterSchema.cs b/src/Microsoft.Graph/Generated/Models/AttributeMappingParameterSchema.cs
index 45377c43421..2fd3b4f21f1 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeMappingParameterSchema.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeMappingParameterSchema.cs
@@ -86,7 +86,7 @@ public AttributeMappingParameterSchema()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttributeMappingParameterSchema CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeMappingParameterSchema();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowMultipleOccurrences", AllowMultipleOccurrences);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeMappingSource.cs b/src/Microsoft.Graph/Generated/Models/AttributeMappingSource.cs
index 503b65cb5f6..18d834e05ea 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeMappingSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeMappingSource.cs
@@ -106,7 +106,7 @@ public AttributeMappingSource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AttributeMappingSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeMappingSource();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("expression", Expression);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeRuleMembers.cs b/src/Microsoft.Graph/Generated/Models/AttributeRuleMembers.cs
index afc499f72ce..fec1fadf9b0 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeRuleMembers.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeRuleMembers.cs
@@ -58,7 +58,7 @@ public AttributeRuleMembers() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttributeRuleMembers CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeRuleMembers();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("membershipRule", MembershipRule);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeSet.cs b/src/Microsoft.Graph/Generated/Models/AttributeSet.cs
index 79c70fc2fbf..a8761f9e630 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeSet.cs
@@ -41,7 +41,7 @@ public int? MaxAttributesPerSet
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttributeSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeSet();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteIntValue("maxAttributesPerSet", MaxAttributesPerSet);
diff --git a/src/Microsoft.Graph/Generated/Models/AttributeSetCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AttributeSetCollectionResponse.cs
index f34710b772f..167ae8e1303 100644
--- a/src/Microsoft.Graph/Generated/Models/AttributeSetCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AttributeSetCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AttributeSetCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AttributeSetCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AttributeSetCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeSet>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Audio.cs b/src/Microsoft.Graph/Generated/Models/Audio.cs
index e2fb9332806..f47a771bf89 100644
--- a/src/Microsoft.Graph/Generated/Models/Audio.cs
+++ b/src/Microsoft.Graph/Generated/Models/Audio.cs
@@ -218,7 +218,7 @@ public Audio()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Audio CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Audio();
         }
         /// <summary>
@@ -254,7 +254,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("album", Album);
             writer.WriteStringValue("albumArtist", AlbumArtist);
             writer.WriteStringValue("artist", Artist);
diff --git a/src/Microsoft.Graph/Generated/Models/AudioConferencing.cs b/src/Microsoft.Graph/Generated/Models/AudioConferencing.cs
index de4cd0ce711..7d27f3f4bca 100644
--- a/src/Microsoft.Graph/Generated/Models/AudioConferencing.cs
+++ b/src/Microsoft.Graph/Generated/Models/AudioConferencing.cs
@@ -148,7 +148,7 @@ public AudioConferencing()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AudioConferencing CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AudioConferencing();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("conferenceId", ConferenceId);
             writer.WriteStringValue("dialinUrl", DialinUrl);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AudioRoutingGroup.cs b/src/Microsoft.Graph/Generated/Models/AudioRoutingGroup.cs
index afd113f4527..a4a05241257 100644
--- a/src/Microsoft.Graph/Generated/Models/AudioRoutingGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/AudioRoutingGroup.cs
@@ -57,7 +57,7 @@ public List<string> Sources
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AudioRoutingGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AudioRoutingGroup();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("receivers", Receivers);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RoutingMode>("routingMode", RoutingMode);
diff --git a/src/Microsoft.Graph/Generated/Models/AudioRoutingGroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AudioRoutingGroupCollectionResponse.cs
index a671a4ed31f..e26bde7932f 100644
--- a/src/Microsoft.Graph/Generated/Models/AudioRoutingGroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AudioRoutingGroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AudioRoutingGroupCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AudioRoutingGroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AudioRoutingGroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AudioRoutingGroup>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuditActivityInitiator.cs b/src/Microsoft.Graph/Generated/Models/AuditActivityInitiator.cs
index 82623fe2ad3..c0ce1ea57b8 100644
--- a/src/Microsoft.Graph/Generated/Models/AuditActivityInitiator.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuditActivityInitiator.cs
@@ -84,7 +84,7 @@ public AuditActivityInitiator()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuditActivityInitiator CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuditActivityInitiator();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppIdentity>("app", App);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserIdentity>("user", User);
diff --git a/src/Microsoft.Graph/Generated/Models/AuditActor.cs b/src/Microsoft.Graph/Generated/Models/AuditActor.cs
index e61f42e7500..0cc611feb98 100644
--- a/src/Microsoft.Graph/Generated/Models/AuditActor.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuditActor.cs
@@ -181,7 +181,7 @@ public AuditActor()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuditActor CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuditActor();
         }
         /// <summary>
@@ -209,7 +209,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationDisplayName", ApplicationDisplayName);
             writer.WriteStringValue("applicationId", ApplicationId);
             writer.WriteStringValue("auditActorType", AuditActorType);
diff --git a/src/Microsoft.Graph/Generated/Models/AuditEvent.cs b/src/Microsoft.Graph/Generated/Models/AuditEvent.cs
index 5c06d1d5e3b..874329529fd 100644
--- a/src/Microsoft.Graph/Generated/Models/AuditEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuditEvent.cs
@@ -176,7 +176,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuditEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuditEvent();
         }
         /// <summary>
@@ -206,7 +206,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("activity", Activity);
             writer.WriteDateTimeOffsetValue("activityDateTime", ActivityDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/AuditEventCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuditEventCollectionResponse.cs
index 6282a313a7b..892f73b0234 100644
--- a/src/Microsoft.Graph/Generated/Models/AuditEventCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuditEventCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuditEventCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuditEventCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuditEventCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuditEvent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuditLogRoot.cs b/src/Microsoft.Graph/Generated/Models/AuditLogRoot.cs
index 3403845bd2f..776045f37d4 100644
--- a/src/Microsoft.Graph/Generated/Models/AuditLogRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuditLogRoot.cs
@@ -67,7 +67,7 @@ public partial class AuditLogRoot : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuditLogRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuditLogRoot();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryAudit>("directoryAudits", DirectoryAudits);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProvisioningObjectSummary>("provisioning", Provisioning);
diff --git a/src/Microsoft.Graph/Generated/Models/AuditProperty.cs b/src/Microsoft.Graph/Generated/Models/AuditProperty.cs
index 413d3f73085..ff40cb9a5a9 100644
--- a/src/Microsoft.Graph/Generated/Models/AuditProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuditProperty.cs
@@ -101,7 +101,7 @@ public AuditProperty()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuditProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuditProperty();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("newValue", NewValue);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AuditResource.cs b/src/Microsoft.Graph/Generated/Models/AuditResource.cs
index f6077ed6658..f49d2e2a54d 100644
--- a/src/Microsoft.Graph/Generated/Models/AuditResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuditResource.cs
@@ -117,7 +117,7 @@ public AuditResource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuditResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuditResource();
         }
         /// <summary>
@@ -141,7 +141,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("auditResourceType", AuditResourceType);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuditProperty>("modifiedProperties", ModifiedProperties);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthContext.cs b/src/Microsoft.Graph/Generated/Models/AuthContext.cs
index f870ad1052a..67726b63ffc 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthContext.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthContext.cs
@@ -42,7 +42,7 @@ public AuthContext() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthContext CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthContext();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("authenticationContextValue", AuthenticationContextValue);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Authentication.cs b/src/Microsoft.Graph/Generated/Models/Authentication.cs
index dded4678940..f8ef8427dbc 100644
--- a/src/Microsoft.Graph/Generated/Models/Authentication.cs
+++ b/src/Microsoft.Graph/Generated/Models/Authentication.cs
@@ -195,7 +195,7 @@ public partial class Authentication : global::Microsoft.Graph.Models.Entity, IPa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Authentication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Authentication();
         }
         /// <summary>
@@ -225,7 +225,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EmailAuthenticationMethod>("emailMethods", EmailMethods);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Fido2AuthenticationMethod>("fido2Methods", Fido2Methods);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionInputConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionInputConfiguration.cs
index f975a7acdf4..c48d2e1439c 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionInputConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionInputConfiguration.cs
@@ -162,7 +162,7 @@ public AuthenticationAttributeCollectionInputConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationAttributeCollectionInputConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationAttributeCollectionInputConfiguration();
         }
         /// <summary>
@@ -192,7 +192,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("attribute", Attribute);
             writer.WriteStringValue("defaultValue", DefaultValue);
             writer.WriteBoolValue("editable", Editable);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionOptionConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionOptionConfiguration.cs
index ba0c14e46bb..51ea093f0ad 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionOptionConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionOptionConfiguration.cs
@@ -84,7 +84,7 @@ public AuthenticationAttributeCollectionOptionConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationAttributeCollectionOptionConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationAttributeCollectionOptionConfiguration();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("label", Label);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPage.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPage.cs
index 926872b8f43..cb273f5c2fc 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPage.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPage.cs
@@ -68,7 +68,7 @@ public AuthenticationAttributeCollectionPage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationAttributeCollectionPage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationAttributeCollectionPage();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationAttributeCollectionPageViewConfiguration>("views", Views);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPageViewConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPageViewConfiguration.cs
index 41584790fba..9e8f13a2f0f 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPageViewConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationAttributeCollectionPageViewConfiguration.cs
@@ -100,7 +100,7 @@ public AuthenticationAttributeCollectionPageViewConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationAttributeCollectionPageViewConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationAttributeCollectionPageViewConfiguration();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationAttributeCollectionInputConfiguration>("inputs", Inputs);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationBehaviors.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationBehaviors.cs
index d9b1cb17bef..c4e5355578c 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationBehaviors.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationBehaviors.cs
@@ -70,7 +70,7 @@ public AuthenticationBehaviors()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationBehaviors CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationBehaviors();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("blockAzureADGraphAccess", BlockAzureADGraphAccess);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("removeUnverifiedEmailClaim", RemoveUnverifiedEmailClaim);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfiguration.cs
index 1815c20165a..73bfd5f3d92 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfiguration.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationCombinationConfiguration : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -61,7 +61,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.AuthenticationMethodModes>("appliesToCombinations", AppliesToCombinations);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfigurationCollectionResponse.cs
index 894f52058b2..6af5b7bce62 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationCombinationConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationCombinationConfigurationCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationCombinationConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationCombinationConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplication.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplication.cs
index 0ae352a3fd1..febaaa413e5 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplication.cs
@@ -68,7 +68,7 @@ public AuthenticationConditionApplication()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationConditionApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationConditionApplication();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appId", AppId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplicationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplicationCollectionResponse.cs
index 2780aa48290..1aff5e0d0e5 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplicationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationConditionApplicationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationConditionApplicationCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationConditionApplicationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationConditionApplicationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationConditionApplication>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationConditions.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationConditions.cs
index 002f25b2a0d..d1c07249406 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationConditions.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationConditions.cs
@@ -68,7 +68,7 @@ public AuthenticationConditions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationConditions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationConditions();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationConditionsApplications>("applications", Applications);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationConditionsApplications.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationConditionsApplications.cs
index c31f35364a7..ded0995b778 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationConditionsApplications.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationConditionsApplications.cs
@@ -68,7 +68,7 @@ public AuthenticationConditionsApplications()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationConditionsApplications CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationConditionsApplications();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationConditionApplication>("includeApplications", IncludeApplications);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationConfigurationValidation.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationConfigurationValidation.cs
index 8b2b7adee25..db7075134a3 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationConfigurationValidation.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationConfigurationValidation.cs
@@ -84,7 +84,7 @@ public AuthenticationConfigurationValidation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationConfigurationValidation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationConfigurationValidation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GenericError>("errors", Errors);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GenericError>("warnings", Warnings);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReference.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReference.cs
index 1b871bb9c0b..2731a90a9ce 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReference.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReference.cs
@@ -57,7 +57,7 @@ public bool? IsAvailable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationContextClassReference CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationContextClassReference();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReferenceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReferenceCollectionResponse.cs
index 8c796e2624c..88781ddca2e 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReferenceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationContextClassReferenceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationContextClassReferenceCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationContextClassReferenceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationContextClassReferenceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationContextClassReference>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationEventListener.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationEventListener.cs
index dca54b76439..3c6545da5e8 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationEventListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationEventListener.cs
@@ -51,7 +51,7 @@ public string AuthenticationEventsFlowId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationEventListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -84,7 +84,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("authenticationEventsFlowId", AuthenticationEventsFlowId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationConditions>("conditions", Conditions);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationEventListenerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationEventListenerCollectionResponse.cs
index ec395366647..deae1951706 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationEventListenerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationEventListenerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationEventListenerCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationEventListenerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationEventListenerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationEventListener>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlow.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlow.cs
index 33f3bf887de..8452125a9a6 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlow.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlow.cs
@@ -67,7 +67,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationEventsFlow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationConditions>("conditions", Conditions);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlowCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlowCollectionResponse.cs
index 17bdfda8987..bd57d8ad7aa 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlowCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationEventsFlowCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationEventsFlowCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationEventsFlowCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationEventsFlowCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationEventsFlow>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationFlow.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationFlow.cs
index 32395cbe4f3..9b453d1460f 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationFlow.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationFlow.cs
@@ -58,7 +58,7 @@ public AuthenticationFlow()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationFlow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationFlow();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ConditionalAccessTransferMethods>("transferMethod", TransferMethod);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationFlowsPolicy.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationFlowsPolicy.cs
index d3989424d74..e0025ebf1f8 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationFlowsPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationFlowsPolicy.cs
@@ -67,7 +67,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationFlowsPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationFlowsPolicy();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethod.cs
index fc95f9becdf..d42cb43edac 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethod.cs
@@ -19,7 +19,7 @@ public partial class AuthenticationMethod : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -51,7 +51,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodCollectionResponse.cs
index cc47dff7a37..b696d0457ff 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationMethodCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfiguration.cs
index d83a84f0ada..2838668ddc5 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfiguration.cs
@@ -41,7 +41,7 @@ public partial class AuthenticationMethodConfiguration : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -74,7 +74,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExcludeTarget>("excludeTargets", ExcludeTargets);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AuthenticationMethodState>("state", State);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfigurationCollectionResponse.cs
index 1c4a178810d..0fa3c93663d 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationMethodConfigurationCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodFeatureConfiguration.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodFeatureConfiguration.cs
index a23713113ae..bb446b4a89a 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodFeatureConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodFeatureConfiguration.cs
@@ -90,7 +90,7 @@ public AuthenticationMethodFeatureConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationMethodFeatureConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodFeatureConfiguration();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FeatureTarget>("excludeTarget", ExcludeTarget);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FeatureTarget>("includeTarget", IncludeTarget);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetail.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetail.cs
index eb1b4623d62..d4d74c0e89f 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetail.cs
@@ -41,7 +41,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodModeDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodModeDetail();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BaseAuthenticationMethod>("authenticationMethod", AuthenticationMethod);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetailCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetailCollectionResponse.cs
index f5d9f6b451a..d02e8deaede 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetailCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodModeDetailCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationMethodModeDetailCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodModeDetailCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodModeDetailCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodModeDetail>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodTarget.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodTarget.cs
index 568bc9fc49f..18fda574507 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodTarget.cs
@@ -31,7 +31,7 @@ public bool? IsRegistrationRequired
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -58,7 +58,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isRegistrationRequired", IsRegistrationRequired);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AuthenticationMethodTargetType>("targetType", TargetType);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsPolicy.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsPolicy.cs
index fdaa7a2683b..efb25cbca1d 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsPolicy.cs
@@ -117,7 +117,7 @@ public int? ReconfirmationInDays
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodsPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodsPolicy();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration>("authenticationMethodConfigurations", AuthenticationMethodConfigurations);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaign.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaign.cs
index ebcd4a0d729..d3b029d9717 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaign.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaign.cs
@@ -96,7 +96,7 @@ public AuthenticationMethodsRegistrationCampaign()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationMethodsRegistrationCampaign CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodsRegistrationCampaign();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExcludeTarget>("excludeTargets", ExcludeTargets);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodsRegistrationCampaignIncludeTarget>("includeTargets", IncludeTargets);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaignIncludeTarget.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaignIncludeTarget.cs
index 7119462ded5..a769b23c4e7 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaignIncludeTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRegistrationCampaignIncludeTarget.cs
@@ -90,7 +90,7 @@ public AuthenticationMethodsRegistrationCampaignIncludeTarget()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationMethodsRegistrationCampaignIncludeTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodsRegistrationCampaignIncludeTarget();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("targetedAuthenticationMethod", TargetedAuthenticationMethod);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRoot.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRoot.cs
index 584176fa2ea..737912e91cc 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationMethodsRoot.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationMethodsRoot : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationMethodsRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationMethodsRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserRegistrationDetails>("userRegistrationDetails", UserRegistrationDetails);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicy.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicy.cs
index 0a1e4820451..f5b7207ceed 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicy.cs
@@ -107,7 +107,7 @@ public DateTimeOffset? ModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationStrengthPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationStrengthPolicy();
         }
         /// <summary>
@@ -134,7 +134,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.AuthenticationMethodModes>("allowedCombinations", AllowedCombinations);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration>("combinationConfigurations", CombinationConfigurations);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicyCollectionResponse.cs
index 19e844c90be..b8ae3c950f3 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthenticationStrengthPolicyCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationStrengthPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationStrengthPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationStrengthPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthRoot.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthRoot.cs
index ffeaae7603f..10533d98d5b 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthRoot.cs
@@ -67,7 +67,7 @@ public partial class AuthenticationStrengthRoot : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthenticationStrengthRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationStrengthRoot();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodModeDetail>("authenticationMethodModes", AuthenticationMethodModes);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.AuthenticationMethodModes>("combinations", Combinations);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthUsage.cs b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthUsage.cs
index 27a1d709563..4f47ee5a535 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthUsage.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthenticationStrengthUsage.cs
@@ -84,7 +84,7 @@ public AuthenticationStrengthUsage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthenticationStrengthUsage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthenticationStrengthUsage();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConditionalAccessPolicy>("mfa", Mfa);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConditionalAccessPolicy>("none", None);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthoredNote.cs b/src/Microsoft.Graph/Generated/Models/AuthoredNote.cs
index ab31bee93db..5ea13c85f99 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthoredNote.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthoredNote.cs
@@ -57,7 +57,7 @@ public DateTimeOffset? CreatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthoredNote CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthoredNote();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("author", Author);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("content", Content);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthoredNoteCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/AuthoredNoteCollectionResponse.cs
index b6192c7e549..9f271afc2bc 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthoredNoteCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthoredNoteCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthoredNoteCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthoredNoteCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthoredNoteCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthoredNote>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AuthorizationInfo.cs b/src/Microsoft.Graph/Generated/Models/AuthorizationInfo.cs
index b5108cd3fd2..bb1b3398f81 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthorizationInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthorizationInfo.cs
@@ -68,7 +68,7 @@ public AuthorizationInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AuthorizationInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthorizationInfo();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("certificateUserIds", CertificateUserIds);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/AuthorizationPolicy.cs b/src/Microsoft.Graph/Generated/Models/AuthorizationPolicy.cs
index 868b03e056a..14d32a2683e 100644
--- a/src/Microsoft.Graph/Generated/Models/AuthorizationPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AuthorizationPolicy.cs
@@ -84,7 +84,7 @@ public AuthorizationPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AuthorizationPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AuthorizationPolicy();
         }
         /// <summary>
@@ -111,7 +111,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowedToSignUpEmailBasedSubscriptions", AllowedToSignUpEmailBasedSubscriptions);
             writer.WriteBoolValue("allowedToUseSSPR", AllowedToUseSSPR);
diff --git a/src/Microsoft.Graph/Generated/Models/AutomaticRepliesMailTips.cs b/src/Microsoft.Graph/Generated/Models/AutomaticRepliesMailTips.cs
index 4f7424cdf8f..1c3abfe2bf5 100644
--- a/src/Microsoft.Graph/Generated/Models/AutomaticRepliesMailTips.cs
+++ b/src/Microsoft.Graph/Generated/Models/AutomaticRepliesMailTips.cs
@@ -116,7 +116,7 @@ public AutomaticRepliesMailTips()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AutomaticRepliesMailTips CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AutomaticRepliesMailTips();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("message", Message);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.LocaleInfo>("messageLanguage", MessageLanguage);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AutomaticRepliesSetting.cs b/src/Microsoft.Graph/Generated/Models/AutomaticRepliesSetting.cs
index b05c68c81d0..3f3bab1ff45 100644
--- a/src/Microsoft.Graph/Generated/Models/AutomaticRepliesSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/AutomaticRepliesSetting.cs
@@ -128,7 +128,7 @@ public AutomaticRepliesSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AutomaticRepliesSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AutomaticRepliesSetting();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalAudienceScope>("externalAudience", ExternalAudience);
             writer.WriteStringValue("externalReplyMessage", ExternalReplyMessage);
             writer.WriteStringValue("internalReplyMessage", InternalReplyMessage);
diff --git a/src/Microsoft.Graph/Generated/Models/AvailabilityItem.cs b/src/Microsoft.Graph/Generated/Models/AvailabilityItem.cs
index ad6f1c20f7b..433d3067db4 100644
--- a/src/Microsoft.Graph/Generated/Models/AvailabilityItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/AvailabilityItem.cs
@@ -106,7 +106,7 @@ public AvailabilityItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AvailabilityItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AvailabilityItem();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("endDateTime", EndDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("serviceId", ServiceId);
diff --git a/src/Microsoft.Graph/Generated/Models/AverageComparativeScore.cs b/src/Microsoft.Graph/Generated/Models/AverageComparativeScore.cs
index b8cdeaf3bf7..8d8932589da 100644
--- a/src/Microsoft.Graph/Generated/Models/AverageComparativeScore.cs
+++ b/src/Microsoft.Graph/Generated/Models/AverageComparativeScore.cs
@@ -74,7 +74,7 @@ public AverageComparativeScore()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AverageComparativeScore CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AverageComparativeScore();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDoubleValue("averageScore", AverageScore);
             writer.WriteStringValue("basis", Basis);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AzureADJoinPolicy.cs b/src/Microsoft.Graph/Generated/Models/AzureADJoinPolicy.cs
index 6b162cc3921..3a50bd0353a 100644
--- a/src/Microsoft.Graph/Generated/Models/AzureADJoinPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AzureADJoinPolicy.cs
@@ -74,7 +74,7 @@ public AzureADJoinPolicy()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AzureADJoinPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AzureADJoinPolicy();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceRegistrationMembership>("allowedToJoin", AllowedToJoin);
             writer.WriteBoolValue("isAdminConfigurable", IsAdminConfigurable);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AzureADRegistrationPolicy.cs b/src/Microsoft.Graph/Generated/Models/AzureADRegistrationPolicy.cs
index 122c13279ae..d7b50571ddc 100644
--- a/src/Microsoft.Graph/Generated/Models/AzureADRegistrationPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/AzureADRegistrationPolicy.cs
@@ -74,7 +74,7 @@ public AzureADRegistrationPolicy()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.AzureADRegistrationPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AzureADRegistrationPolicy();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceRegistrationMembership>("allowedToRegister", AllowedToRegister);
             writer.WriteBoolValue("isAdminConfigurable", IsAdminConfigurable);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/AzureActiveDirectoryTenant.cs b/src/Microsoft.Graph/Generated/Models/AzureActiveDirectoryTenant.cs
index 7a96722ecf9..f4041385d50 100644
--- a/src/Microsoft.Graph/Generated/Models/AzureActiveDirectoryTenant.cs
+++ b/src/Microsoft.Graph/Generated/Models/AzureActiveDirectoryTenant.cs
@@ -58,7 +58,7 @@ public AzureActiveDirectoryTenant() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AzureActiveDirectoryTenant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AzureActiveDirectoryTenant();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("tenantId", TenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/AzureAdPopTokenAuthentication.cs b/src/Microsoft.Graph/Generated/Models/AzureAdPopTokenAuthentication.cs
index d7f1053ba88..c304254379b 100644
--- a/src/Microsoft.Graph/Generated/Models/AzureAdPopTokenAuthentication.cs
+++ b/src/Microsoft.Graph/Generated/Models/AzureAdPopTokenAuthentication.cs
@@ -26,7 +26,7 @@ public AzureAdPopTokenAuthentication() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AzureAdPopTokenAuthentication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AzureAdPopTokenAuthentication();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/AzureAdTokenAuthentication.cs b/src/Microsoft.Graph/Generated/Models/AzureAdTokenAuthentication.cs
index 703e017602a..33112dd0d2f 100644
--- a/src/Microsoft.Graph/Generated/Models/AzureAdTokenAuthentication.cs
+++ b/src/Microsoft.Graph/Generated/Models/AzureAdTokenAuthentication.cs
@@ -42,7 +42,7 @@ public AzureAdTokenAuthentication() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AzureAdTokenAuthentication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AzureAdTokenAuthentication();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("resourceId", ResourceId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserConversationMember.cs b/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserConversationMember.cs
index edf0f68c9af..74afeb30ef3 100644
--- a/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserConversationMember.cs
@@ -42,7 +42,7 @@ public AzureCommunicationServicesUserConversationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AzureCommunicationServicesUserConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AzureCommunicationServicesUserConversationMember();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("azureCommunicationServicesId", AzureCommunicationServicesId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserIdentity.cs b/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserIdentity.cs
index 3a1b8e2cd94..9316e54a52d 100644
--- a/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/AzureCommunicationServicesUserIdentity.cs
@@ -42,7 +42,7 @@ public AzureCommunicationServicesUserIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.AzureCommunicationServicesUserIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.AzureCommunicationServicesUserIdentity();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("azureCommunicationServicesResourceId", AzureCommunicationServicesResourceId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlow.cs b/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlow.cs
index b1f08af2dad..3dc3b630f97 100644
--- a/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlow.cs
+++ b/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlow.cs
@@ -99,7 +99,7 @@ public partial class B2xIdentityUserFlow : global::Microsoft.Graph.Models.Identi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.B2xIdentityUserFlow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.B2xIdentityUserFlow();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserFlowApiConnectorConfiguration>("apiConnectorConfiguration", ApiConnectorConfiguration);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityProvider>("identityProviders", IdentityProviders);
diff --git a/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlowCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlowCollectionResponse.cs
index 58c3e6dcc30..a396d672f32 100644
--- a/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlowCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/B2xIdentityUserFlowCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class B2xIdentityUserFlowCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.B2xIdentityUserFlowCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.B2xIdentityUserFlowCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.B2xIdentityUserFlow>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BackupRestoreRoot.cs b/src/Microsoft.Graph/Generated/Models/BackupRestoreRoot.cs
index 7631eba8d20..8dd1991bf28 100644
--- a/src/Microsoft.Graph/Generated/Models/BackupRestoreRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/BackupRestoreRoot.cs
@@ -355,7 +355,7 @@ public partial class BackupRestoreRoot : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BackupRestoreRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BackupRestoreRoot();
         }
         /// <summary>
@@ -395,7 +395,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveProtectionRule>("driveInclusionRules", DriveInclusionRules);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveProtectionUnit>("driveProtectionUnits", DriveProtectionUnits);
diff --git a/src/Microsoft.Graph/Generated/Models/BaseCollectionPaginationCountResponse.cs b/src/Microsoft.Graph/Generated/Models/BaseCollectionPaginationCountResponse.cs
index 4ba1e665df1..76eb3a4f17d 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseCollectionPaginationCountResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseCollectionPaginationCountResponse.cs
@@ -58,7 +58,7 @@ public BaseCollectionPaginationCountResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BaseCollectionPaginationCountResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BaseCollectionPaginationCountResponse();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteLongValue("@odata.count", OdataCount);
             writer.WriteStringValue("@odata.nextLink", OdataNextLink);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/BaseDeltaFunctionResponse.cs b/src/Microsoft.Graph/Generated/Models/BaseDeltaFunctionResponse.cs
index db361751ae2..06da906d7d9 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseDeltaFunctionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseDeltaFunctionResponse.cs
@@ -68,7 +68,7 @@ public BaseDeltaFunctionResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BaseDeltaFunctionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BaseDeltaFunctionResponse();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.deltaLink", OdataDeltaLink);
             writer.WriteStringValue("@odata.nextLink", OdataNextLink);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/BaseEndUserNotification.cs b/src/Microsoft.Graph/Generated/Models/BaseEndUserNotification.cs
index 19139d12263..b0a68aed3cf 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseEndUserNotification.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseEndUserNotification.cs
@@ -84,7 +84,7 @@ public BaseEndUserNotification()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BaseEndUserNotification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("defaultLanguage", DefaultLanguage);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EndUserNotification>("endUserNotification", EndUserNotification);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/BaseItem.cs b/src/Microsoft.Graph/Generated/Models/BaseItem.cs
index 32611f4e4a2..312269fbcdb 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseItem.cs
@@ -175,7 +175,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BaseItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -219,7 +219,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.User>("createdByUser", CreatedByUser);
diff --git a/src/Microsoft.Graph/Generated/Models/BaseItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BaseItemCollectionResponse.cs
index 1cb73eaa59f..b8b34cffa30 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BaseItemCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BaseItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BaseItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BaseItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BaseItemVersion.cs b/src/Microsoft.Graph/Generated/Models/BaseItemVersion.cs
index dfebd3775a2..d5a889a2587 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseItemVersion.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseItemVersion.cs
@@ -57,7 +57,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BaseItemVersion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("lastModifiedBy", LastModifiedBy);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/BaseSitePage.cs b/src/Microsoft.Graph/Generated/Models/BaseSitePage.cs
index 3c38e7ba3c3..75973697016 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseSitePage.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseSitePage.cs
@@ -64,7 +64,7 @@ public BaseSitePage() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BaseSitePage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -91,7 +91,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PageLayoutType>("pageLayout", PageLayout);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicationFacet>("publishingState", PublishingState);
diff --git a/src/Microsoft.Graph/Generated/Models/BaseSitePageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BaseSitePageCollectionResponse.cs
index 774feac898d..83ab78f0ed3 100644
--- a/src/Microsoft.Graph/Generated/Models/BaseSitePageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BaseSitePageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BaseSitePageCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BaseSitePageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BaseSitePageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BaseSitePage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BasicAuthentication.cs b/src/Microsoft.Graph/Generated/Models/BasicAuthentication.cs
index c6cf9ab8925..d8314db93f8 100644
--- a/src/Microsoft.Graph/Generated/Models/BasicAuthentication.cs
+++ b/src/Microsoft.Graph/Generated/Models/BasicAuthentication.cs
@@ -58,7 +58,7 @@ public BasicAuthentication() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BasicAuthentication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BasicAuthentication();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("password", Password);
             writer.WriteStringValue("username", Username);
diff --git a/src/Microsoft.Graph/Generated/Models/BinaryContent.cs b/src/Microsoft.Graph/Generated/Models/BinaryContent.cs
index 81a8fc23090..33d08f628ac 100644
--- a/src/Microsoft.Graph/Generated/Models/BinaryContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/BinaryContent.cs
@@ -42,7 +42,7 @@ public BinaryContent() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BinaryContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BinaryContent();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("data", Data);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BitLockerRemovableDrivePolicy.cs b/src/Microsoft.Graph/Generated/Models/BitLockerRemovableDrivePolicy.cs
index bfe730ed3c8..298cf4451e9 100644
--- a/src/Microsoft.Graph/Generated/Models/BitLockerRemovableDrivePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/BitLockerRemovableDrivePolicy.cs
@@ -71,7 +71,7 @@ public BitLockerRemovableDrivePolicy()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BitLockerRemovableDrivePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BitLockerRemovableDrivePolicy();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("blockCrossOrganizationWriteAccess", BlockCrossOrganizationWriteAccess);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BitLockerEncryptionMethod>("encryptionMethod", EncryptionMethod);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Bitlocker.cs b/src/Microsoft.Graph/Generated/Models/Bitlocker.cs
index a9d21a63ecd..058994a53fa 100644
--- a/src/Microsoft.Graph/Generated/Models/Bitlocker.cs
+++ b/src/Microsoft.Graph/Generated/Models/Bitlocker.cs
@@ -35,7 +35,7 @@ public partial class Bitlocker : global::Microsoft.Graph.Models.Entity, IParsabl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Bitlocker CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Bitlocker();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BitlockerRecoveryKey>("recoveryKeys", RecoveryKeys);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKey.cs b/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKey.cs
index 2aedff0559f..58adc3d0f92 100644
--- a/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKey.cs
+++ b/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKey.cs
@@ -63,7 +63,7 @@ public string Key
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BitlockerRecoveryKey CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BitlockerRecoveryKey();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("deviceId", DeviceId);
diff --git a/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKeyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKeyCollectionResponse.cs
index 839e3a55841..cb30c7a1297 100644
--- a/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKeyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BitlockerRecoveryKeyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BitlockerRecoveryKeyCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BitlockerRecoveryKeyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BitlockerRecoveryKeyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BitlockerRecoveryKey>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingAppointment.cs b/src/Microsoft.Graph/Generated/Models/BookingAppointment.cs
index 6f13029758b..0d3b5ddb17e 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingAppointment.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingAppointment.cs
@@ -402,7 +402,7 @@ public List<string> StaffMemberIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingAppointment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingAppointment();
         }
         /// <summary>
@@ -453,7 +453,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("additionalInformation", AdditionalInformation);
             writer.WriteStringValue("anonymousJoinWebUrl", AnonymousJoinWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingAppointmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BookingAppointmentCollectionResponse.cs
index 891ee62cf28..df416aa2225 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingAppointmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingAppointmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookingAppointmentCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingAppointmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingAppointmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingAppointment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingBusiness.cs b/src/Microsoft.Graph/Generated/Models/BookingBusiness.cs
index b5e95444411..ef59e5cbe22 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingBusiness.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingBusiness.cs
@@ -326,7 +326,7 @@ public string WebSiteUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingBusiness CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingBusiness();
         }
         /// <summary>
@@ -366,7 +366,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PhysicalAddress>("address", Address);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingAppointment>("appointments", Appointments);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingBusinessCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BookingBusinessCollectionResponse.cs
index d724a58a54d..a1ae4cd77c3 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingBusinessCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingBusinessCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookingBusinessCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingBusinessCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingBusinessCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingBusiness>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCurrency.cs b/src/Microsoft.Graph/Generated/Models/BookingCurrency.cs
index 22195d6af8d..5856cec6330 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCurrency.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCurrency.cs
@@ -35,7 +35,7 @@ public string Symbol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCurrency CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingCurrency();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("symbol", Symbol);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCurrencyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BookingCurrencyCollectionResponse.cs
index da0dc9ef931..a3f4c04e553 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCurrencyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCurrencyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookingCurrencyCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCurrencyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingCurrencyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingCurrency>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCustomQuestion.cs b/src/Microsoft.Graph/Generated/Models/BookingCustomQuestion.cs
index 480c7de54f1..9355ebd765e 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCustomQuestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCustomQuestion.cs
@@ -70,7 +70,7 @@ public DateTimeOffset? LastUpdatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCustomQuestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingCustomQuestion();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AnswerInputType>("answerInputType", AnswerInputType);
             writer.WriteCollectionOfPrimitiveValues<string>("answerOptions", AnswerOptions);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCustomQuestionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BookingCustomQuestionCollectionResponse.cs
index fcdfff9561e..5e169a65c35 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCustomQuestionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCustomQuestionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookingCustomQuestionCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCustomQuestionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingCustomQuestionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingCustomQuestion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCustomer.cs b/src/Microsoft.Graph/Generated/Models/BookingCustomer.cs
index 90ebf2d5cb7..f1c0886feea 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCustomer.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCustomer.cs
@@ -103,7 +103,7 @@ public BookingCustomer() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCustomer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingCustomer();
         }
         /// <summary>
@@ -128,7 +128,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PhysicalAddress>("addresses", Addresses);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCustomerBase.cs b/src/Microsoft.Graph/Generated/Models/BookingCustomerBase.cs
index c853b693062..7c9f6a76891 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCustomerBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCustomerBase.cs
@@ -20,7 +20,7 @@ public partial class BookingCustomerBase : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCustomerBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -44,7 +44,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCustomerBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BookingCustomerBaseCollectionResponse.cs
index d170613fff6..a156b6d80e5 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCustomerBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCustomerBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookingCustomerBaseCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCustomerBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingCustomerBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingCustomerBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCustomerInformation.cs b/src/Microsoft.Graph/Generated/Models/BookingCustomerInformation.cs
index 0798b0c06ac..aba318a489c 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCustomerInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCustomerInformation.cs
@@ -154,7 +154,7 @@ public BookingCustomerInformation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingCustomerInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingCustomerInformation();
         }
         /// <summary>
@@ -181,7 +181,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("customerId", CustomerId);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingQuestionAnswer>("customQuestionAnswers", CustomQuestionAnswers);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingCustomerInformationBase.cs b/src/Microsoft.Graph/Generated/Models/BookingCustomerInformationBase.cs
index 8e811dcb4e2..1f9199446ad 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingCustomerInformationBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingCustomerInformationBase.cs
@@ -52,7 +52,7 @@ public BookingCustomerInformationBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingCustomerInformationBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingPageSettings.cs b/src/Microsoft.Graph/Generated/Models/BookingPageSettings.cs
index 598babef7bf..0bf4da02a5f 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingPageSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingPageSettings.cs
@@ -168,7 +168,7 @@ public BookingPageSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingPageSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingPageSettings();
         }
         /// <summary>
@@ -199,7 +199,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BookingPageAccessControl>("accessControl", AccessControl);
             writer.WriteStringValue("bookingPageColorCode", BookingPageColorCode);
             writer.WriteStringValue("businessTimeZone", BusinessTimeZone);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingQuestionAnswer.cs b/src/Microsoft.Graph/Generated/Models/BookingQuestionAnswer.cs
index 6c181a6ffb8..23e9bdbe1be 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingQuestionAnswer.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingQuestionAnswer.cs
@@ -144,7 +144,7 @@ public BookingQuestionAnswer()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingQuestionAnswer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingQuestionAnswer();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("answer", Answer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AnswerInputType>("answerInputType", AnswerInputType);
             writer.WriteCollectionOfPrimitiveValues<string>("answerOptions", AnswerOptions);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingQuestionAssignment.cs b/src/Microsoft.Graph/Generated/Models/BookingQuestionAssignment.cs
index b034339bcfa..729aeff3cb3 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingQuestionAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingQuestionAssignment.cs
@@ -74,7 +74,7 @@ public BookingQuestionAssignment()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingQuestionAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingQuestionAssignment();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isRequired", IsRequired);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("questionId", QuestionId);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingReminder.cs b/src/Microsoft.Graph/Generated/Models/BookingReminder.cs
index 1e137d9cd15..7010f728102 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingReminder.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingReminder.cs
@@ -81,7 +81,7 @@ public BookingReminder()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingReminder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingReminder();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteTimeSpanValue("offset", Offset);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingSchedulingPolicy.cs b/src/Microsoft.Graph/Generated/Models/BookingSchedulingPolicy.cs
index 7d8307cdfa0..c67eefe04e8 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingSchedulingPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingSchedulingPolicy.cs
@@ -121,7 +121,7 @@ public BookingSchedulingPolicy()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingSchedulingPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingSchedulingPolicy();
         }
         /// <summary>
@@ -149,7 +149,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowStaffSelection", AllowStaffSelection);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingsAvailabilityWindow>("customAvailabilities", CustomAvailabilities);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BookingsAvailability>("generalAvailability", GeneralAvailability);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingService.cs b/src/Microsoft.Graph/Generated/Models/BookingService.cs
index 2f1158216dd..52f747dccca 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingService.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingService.cs
@@ -274,7 +274,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingService CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingService();
         }
         /// <summary>
@@ -317,7 +317,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("additionalInformation", AdditionalInformation);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingServiceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BookingServiceCollectionResponse.cs
index a3053c3ea18..cb3245adf35 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingServiceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingServiceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookingServiceCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingServiceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingServiceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingService>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingStaffMember.cs b/src/Microsoft.Graph/Generated/Models/BookingStaffMember.cs
index a50299df011..7e4dd15c77f 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingStaffMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingStaffMember.cs
@@ -133,7 +133,7 @@ public BookingStaffMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingStaffMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingStaffMember();
         }
         /// <summary>
@@ -163,7 +163,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("availabilityIsAffectedByPersonalCalendar", AvailabilityIsAffectedByPersonalCalendar);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBase.cs b/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBase.cs
index 100fa5dd4bd..466147098e3 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBase.cs
@@ -20,7 +20,7 @@ public partial class BookingStaffMemberBase : global::Microsoft.Graph.Models.Ent
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingStaffMemberBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -44,7 +44,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBaseCollectionResponse.cs
index 62e29597062..5ba3c8e4928 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingStaffMemberBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookingStaffMemberBaseCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingStaffMemberBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingStaffMemberBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingStaffMemberBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BookingWorkHours.cs b/src/Microsoft.Graph/Generated/Models/BookingWorkHours.cs
index ec5a50a9d2c..6ba645840ef 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingWorkHours.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingWorkHours.cs
@@ -75,7 +75,7 @@ public BookingWorkHours()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingWorkHours CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingWorkHours();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DayOfWeekObject>("day", Day);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingWorkTimeSlot>("timeSlots", TimeSlots);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingWorkTimeSlot.cs b/src/Microsoft.Graph/Generated/Models/BookingWorkTimeSlot.cs
index b50ed3605e2..55858b395fe 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingWorkTimeSlot.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingWorkTimeSlot.cs
@@ -65,7 +65,7 @@ public BookingWorkTimeSlot()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingWorkTimeSlot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingWorkTimeSlot();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeValue("endTime", EndTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteTimeValue("startTime", StartTime);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingsAvailability.cs b/src/Microsoft.Graph/Generated/Models/BookingsAvailability.cs
index bd9f5beafd7..019c715185e 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingsAvailability.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingsAvailability.cs
@@ -74,7 +74,7 @@ public BookingsAvailability()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BookingsAvailability CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BookingsServiceAvailabilityType>("availabilityType", AvailabilityType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingWorkHours>("businessHours", BusinessHours);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/BookingsAvailabilityWindow.cs b/src/Microsoft.Graph/Generated/Models/BookingsAvailabilityWindow.cs
index a20425469ab..56df395c541 100644
--- a/src/Microsoft.Graph/Generated/Models/BookingsAvailabilityWindow.cs
+++ b/src/Microsoft.Graph/Generated/Models/BookingsAvailabilityWindow.cs
@@ -39,7 +39,7 @@ public BookingsAvailabilityWindow() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BookingsAvailabilityWindow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BookingsAvailabilityWindow();
         }
         /// <summary>
@@ -60,7 +60,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateValue("endDate", EndDate);
             writer.WriteDateValue("startDate", StartDate);
diff --git a/src/Microsoft.Graph/Generated/Models/BooleanColumn.cs b/src/Microsoft.Graph/Generated/Models/BooleanColumn.cs
index 52e137bdf4c..47ac7bc17e2 100644
--- a/src/Microsoft.Graph/Generated/Models/BooleanColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/BooleanColumn.cs
@@ -52,7 +52,7 @@ public BooleanColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BooleanColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BooleanColumn();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BroadcastMeetingCaptionSettings.cs b/src/Microsoft.Graph/Generated/Models/BroadcastMeetingCaptionSettings.cs
index 294d1b5202d..7803fc89355 100644
--- a/src/Microsoft.Graph/Generated/Models/BroadcastMeetingCaptionSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/BroadcastMeetingCaptionSettings.cs
@@ -90,7 +90,7 @@ public BroadcastMeetingCaptionSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BroadcastMeetingCaptionSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BroadcastMeetingCaptionSettings();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isCaptionEnabled", IsCaptionEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("spokenLanguage", SpokenLanguage);
diff --git a/src/Microsoft.Graph/Generated/Models/BroadcastMeetingSettings.cs b/src/Microsoft.Graph/Generated/Models/BroadcastMeetingSettings.cs
index a9349f9919e..cd24e1d0f42 100644
--- a/src/Microsoft.Graph/Generated/Models/BroadcastMeetingSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/BroadcastMeetingSettings.cs
@@ -98,7 +98,7 @@ public BroadcastMeetingSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BroadcastMeetingSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BroadcastMeetingSettings();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BroadcastMeetingAudience>("allowedAudience", AllowedAudience);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BroadcastMeetingCaptionSettings>("captions", Captions);
             writer.WriteBoolValue("isAttendeeReportEnabled", IsAttendeeReportEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSharedCookie.cs b/src/Microsoft.Graph/Generated/Models/BrowserSharedCookie.cs
index 130f35bd51c..9bd6fc64e23 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSharedCookie.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSharedCookie.cs
@@ -151,7 +151,7 @@ public string Path
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BrowserSharedCookie CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSharedCookie();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("comment", Comment);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieCollectionResponse.cs
index e95ff518063..8a95becbcf9 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BrowserSharedCookieCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BrowserSharedCookieCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSharedCookieCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BrowserSharedCookie>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieHistory.cs b/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieHistory.cs
index 4aadd573347..2d7674a67f4 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieHistory.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSharedCookieHistory.cs
@@ -150,7 +150,7 @@ public BrowserSharedCookieHistory()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BrowserSharedCookieHistory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSharedCookieHistory();
         }
         /// <summary>
@@ -178,7 +178,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteBoolValue("hostOnly", HostOnly);
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSite.cs b/src/Microsoft.Graph/Generated/Models/BrowserSite.cs
index a2ba172d657..d2bdaf24103 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSite.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSite.cs
@@ -132,7 +132,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BrowserSite CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSite();
         }
         /// <summary>
@@ -163,7 +163,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowRedirect", AllowRedirect);
             writer.WriteStringValue("comment", Comment);
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSiteCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BrowserSiteCollectionResponse.cs
index 552ee601a17..3a9ae6be3e7 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSiteCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSiteCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BrowserSiteCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BrowserSiteCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSiteCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BrowserSite>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSiteHistory.cs b/src/Microsoft.Graph/Generated/Models/BrowserSiteHistory.cs
index a15b1171a04..f2a9ab6ee84 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSiteHistory.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSiteHistory.cs
@@ -115,7 +115,7 @@ public BrowserSiteHistory()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BrowserSiteHistory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSiteHistory();
         }
         /// <summary>
@@ -142,7 +142,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowRedirect", AllowRedirect);
             writer.WriteStringValue("comment", Comment);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BrowserSiteCompatibilityMode>("compatibilityMode", CompatibilityMode);
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSiteList.cs b/src/Microsoft.Graph/Generated/Models/BrowserSiteList.cs
index d7b809a9cc7..1dba988b88f 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSiteList.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSiteList.cs
@@ -150,7 +150,7 @@ public string Revision
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BrowserSiteList CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSiteList();
         }
         /// <summary>
@@ -179,7 +179,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/BrowserSiteListCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/BrowserSiteListCollectionResponse.cs
index b841f964f0f..1a983d54646 100644
--- a/src/Microsoft.Graph/Generated/Models/BrowserSiteListCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/BrowserSiteListCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BrowserSiteListCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BrowserSiteListCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BrowserSiteListCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BrowserSiteList>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BucketAggregationDefinition.cs b/src/Microsoft.Graph/Generated/Models/BucketAggregationDefinition.cs
index 588dbca068a..8fdd747a464 100644
--- a/src/Microsoft.Graph/Generated/Models/BucketAggregationDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/BucketAggregationDefinition.cs
@@ -102,7 +102,7 @@ public BucketAggregationDefinition()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BucketAggregationDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BucketAggregationDefinition();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isDescending", IsDescending);
             writer.WriteIntValue("minimumCount", MinimumCount);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/BucketAggregationRange.cs b/src/Microsoft.Graph/Generated/Models/BucketAggregationRange.cs
index 44a9eb3637c..8456c68ab30 100644
--- a/src/Microsoft.Graph/Generated/Models/BucketAggregationRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/BucketAggregationRange.cs
@@ -84,7 +84,7 @@ public BucketAggregationRange()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.BucketAggregationRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BucketAggregationRange();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("from", From);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("to", To);
diff --git a/src/Microsoft.Graph/Generated/Models/BuiltInIdentityProvider.cs b/src/Microsoft.Graph/Generated/Models/BuiltInIdentityProvider.cs
index bae5a021f66..58e56638d70 100644
--- a/src/Microsoft.Graph/Generated/Models/BuiltInIdentityProvider.cs
+++ b/src/Microsoft.Graph/Generated/Models/BuiltInIdentityProvider.cs
@@ -42,7 +42,7 @@ public BuiltInIdentityProvider() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BuiltInIdentityProvider CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BuiltInIdentityProvider();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("identityProviderType", IdentityProviderType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/BulkUpload.cs b/src/Microsoft.Graph/Generated/Models/BulkUpload.cs
index ce1a16adf59..2b13577c5fc 100644
--- a/src/Microsoft.Graph/Generated/Models/BulkUpload.cs
+++ b/src/Microsoft.Graph/Generated/Models/BulkUpload.cs
@@ -19,7 +19,7 @@ public partial class BulkUpload : global::Microsoft.Graph.Models.Entity, IParsab
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.BulkUpload CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.BulkUpload();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Bundle.cs b/src/Microsoft.Graph/Generated/Models/Bundle.cs
index 279bd66fb09..a7630d34fa4 100644
--- a/src/Microsoft.Graph/Generated/Models/Bundle.cs
+++ b/src/Microsoft.Graph/Generated/Models/Bundle.cs
@@ -74,7 +74,7 @@ public Bundle()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Bundle CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Bundle();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Album>("album", Album);
             writer.WriteIntValue("childCount", ChildCount);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CalculatedColumn.cs b/src/Microsoft.Graph/Generated/Models/CalculatedColumn.cs
index 134abd80d31..309a9f8760e 100644
--- a/src/Microsoft.Graph/Generated/Models/CalculatedColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalculatedColumn.cs
@@ -100,7 +100,7 @@ public CalculatedColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CalculatedColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalculatedColumn();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("format", Format);
             writer.WriteStringValue("formula", Formula);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Calendar.cs b/src/Microsoft.Graph/Generated/Models/Calendar.cs
index a0f94045c6f..2eb297753f6 100644
--- a/src/Microsoft.Graph/Generated/Models/Calendar.cs
+++ b/src/Microsoft.Graph/Generated/Models/Calendar.cs
@@ -227,7 +227,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Calendar CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Calendar();
         }
         /// <summary>
@@ -264,7 +264,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.OnlineMeetingProviderType>("allowedOnlineMeetingProviders", AllowedOnlineMeetingProviders);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CalendarPermission>("calendarPermissions", CalendarPermissions);
diff --git a/src/Microsoft.Graph/Generated/Models/CalendarCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CalendarCollectionResponse.cs
index 3ca26c041e8..cbbfc121833 100644
--- a/src/Microsoft.Graph/Generated/Models/CalendarCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalendarCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CalendarCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CalendarCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalendarCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Calendar>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CalendarGroup.cs b/src/Microsoft.Graph/Generated/Models/CalendarGroup.cs
index 8a8a414ca01..6368af16283 100644
--- a/src/Microsoft.Graph/Generated/Models/CalendarGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalendarGroup.cs
@@ -73,7 +73,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CalendarGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalendarGroup();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Calendar>("calendars", Calendars);
             writer.WriteStringValue("changeKey", ChangeKey);
diff --git a/src/Microsoft.Graph/Generated/Models/CalendarGroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CalendarGroupCollectionResponse.cs
index 38b0d337478..042e2e9cc6a 100644
--- a/src/Microsoft.Graph/Generated/Models/CalendarGroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalendarGroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CalendarGroupCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CalendarGroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalendarGroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CalendarGroup>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CalendarPermission.cs b/src/Microsoft.Graph/Generated/Models/CalendarPermission.cs
index ee8243d2463..cf423d932be 100644
--- a/src/Microsoft.Graph/Generated/Models/CalendarPermission.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalendarPermission.cs
@@ -69,7 +69,7 @@ public bool? IsRemovable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CalendarPermission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalendarPermission();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("allowedRoles", AllowedRoles);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailAddress>("emailAddress", EmailAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/CalendarPermissionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CalendarPermissionCollectionResponse.cs
index 184ebe601d5..fa06be8fb74 100644
--- a/src/Microsoft.Graph/Generated/Models/CalendarPermissionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalendarPermissionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CalendarPermissionCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CalendarPermissionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalendarPermissionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CalendarPermission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CalendarSharingMessage.cs b/src/Microsoft.Graph/Generated/Models/CalendarSharingMessage.cs
index 722d7a7c0dd..04b3e6f6aff 100644
--- a/src/Microsoft.Graph/Generated/Models/CalendarSharingMessage.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalendarSharingMessage.cs
@@ -80,7 +80,7 @@ public CalendarSharingMessage() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CalendarSharingMessage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalendarSharingMessage();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("canAccept", CanAccept);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CalendarSharingMessageAction>("sharingMessageAction", SharingMessageAction);
diff --git a/src/Microsoft.Graph/Generated/Models/CalendarSharingMessageAction.cs b/src/Microsoft.Graph/Generated/Models/CalendarSharingMessageAction.cs
index 3baef900d76..9ff3215c8c0 100644
--- a/src/Microsoft.Graph/Generated/Models/CalendarSharingMessageAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/CalendarSharingMessageAction.cs
@@ -70,7 +70,7 @@ public CalendarSharingMessageAction()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CalendarSharingMessageAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CalendarSharingMessageAction();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CalendarSharingAction>("action", Action);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CalendarSharingActionType>("actionType", ActionType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CalendarSharingActionImportance>("importance", Importance);
diff --git a/src/Microsoft.Graph/Generated/Models/Call.cs b/src/Microsoft.Graph/Generated/Models/Call.cs
index f4ad92dcd37..013a1b0c125 100644
--- a/src/Microsoft.Graph/Generated/Models/Call.cs
+++ b/src/Microsoft.Graph/Generated/Models/Call.cs
@@ -383,7 +383,7 @@ public string TenantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Call CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Call();
         }
         /// <summary>
@@ -426,7 +426,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AudioRoutingGroup>("audioRoutingGroups", AudioRoutingGroups);
             writer.WriteStringValue("callbackUri", CallbackUri);
diff --git a/src/Microsoft.Graph/Generated/Models/CallCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CallCollectionResponse.cs
index c253e72de63..c7e747a51df 100644
--- a/src/Microsoft.Graph/Generated/Models/CallCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CallCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Call>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallEndedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/CallEndedEventMessageDetail.cs
index 6f301ac8ed3..192b8c6cd63 100644
--- a/src/Microsoft.Graph/Generated/Models/CallEndedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallEndedEventMessageDetail.cs
@@ -86,7 +86,7 @@ public CallEndedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallEndedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallEndedEventMessageDetail();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteTimeSpanValue("callDuration", CallDuration);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TeamworkCallEventType>("callEventType", CallEventType);
diff --git a/src/Microsoft.Graph/Generated/Models/CallEvent.cs b/src/Microsoft.Graph/Generated/Models/CallEvent.cs
index f99d7c8af0e..aecd9f3fd10 100644
--- a/src/Microsoft.Graph/Generated/Models/CallEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallEvent.cs
@@ -47,7 +47,7 @@ public DateTimeOffset? EventDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -74,7 +74,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallEventType>("callEventType", CallEventType);
             writer.WriteDateTimeOffsetValue("eventDateTime", EventDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/CallMediaState.cs b/src/Microsoft.Graph/Generated/Models/CallMediaState.cs
index fa1ef18edd5..bd8153757bc 100644
--- a/src/Microsoft.Graph/Generated/Models/CallMediaState.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallMediaState.cs
@@ -58,7 +58,7 @@ public CallMediaState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallMediaState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallMediaState();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MediaState>("audio", Audio);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CallOptions.cs b/src/Microsoft.Graph/Generated/Models/CallOptions.cs
index 7b3fadec6f9..604db477dd3 100644
--- a/src/Microsoft.Graph/Generated/Models/CallOptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallOptions.cs
@@ -70,7 +70,7 @@ public CallOptions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallOptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -99,7 +99,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("hideBotAfterEscalation", HideBotAfterEscalation);
             writer.WriteBoolValue("isContentSharingNotificationEnabled", IsContentSharingNotificationEnabled);
             writer.WriteBoolValue("isDeltaRosterEnabled", IsDeltaRosterEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/CallParticipantInfo.cs b/src/Microsoft.Graph/Generated/Models/CallParticipantInfo.cs
index c4f31d97f8d..9873bc1494a 100644
--- a/src/Microsoft.Graph/Generated/Models/CallParticipantInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallParticipantInfo.cs
@@ -68,7 +68,7 @@ public CallParticipantInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallParticipantInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallParticipantInfo();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("participant", Participant);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecording.cs b/src/Microsoft.Graph/Generated/Models/CallRecording.cs
index f91a9d9cfde..00bb2af9e1a 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecording.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecording.cs
@@ -127,7 +127,7 @@ public string RecordingContentUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecording CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecording();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("callId", CallId);
             writer.WriteByteArrayValue("content", Content);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecordingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CallRecordingCollectionResponse.cs
index 8747059b44e..daede87a369 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecordingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecordingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CallRecordingCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecordingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecordingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecording>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecordingEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/CallRecordingEventMessageDetail.cs
index 4d21085b051..7755c55a615 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecordingEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecordingEventMessageDetail.cs
@@ -118,7 +118,7 @@ public CallRecordingEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecordingEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecordingEventMessageDetail();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("callId", CallId);
             writer.WriteStringValue("callRecordingDisplayName", CallRecordingDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/AdministrativeUnitInfo.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/AdministrativeUnitInfo.cs
index 09019112665..b5d17532420 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/AdministrativeUnitInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/AdministrativeUnitInfo.cs
@@ -68,7 +68,7 @@ public AdministrativeUnitInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.AdministrativeUnitInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.AdministrativeUnitInfo();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecord.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecord.cs
index 6bd2f0590a2..6d7e54fe9be 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecord.cs
@@ -161,7 +161,7 @@ public long? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.CallRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.CallRecord();
         }
         /// <summary>
@@ -192,7 +192,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("joinWebUrl", JoinWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecordCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecordCollectionResponse.cs
index 949a87998cf..817e134c6e3 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecordCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/CallRecordCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CallRecordCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.CallRecordCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.CallRecordCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.CallRecord>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/ClientUserAgent.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/ClientUserAgent.cs
index 2180601c2d8..c8f20e9e55d 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/ClientUserAgent.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/ClientUserAgent.cs
@@ -70,7 +70,7 @@ public ClientUserAgent() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.ClientUserAgent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.ClientUserAgent();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("azureADAppId", AzureADAppId);
             writer.WriteStringValue("communicationServiceId", CommunicationServiceId);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/DeviceInfo.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/DeviceInfo.cs
index b5e7ea9c494..a2d10d789a0 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/DeviceInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/DeviceInfo.cs
@@ -218,7 +218,7 @@ public DeviceInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.DeviceInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.DeviceInfo();
         }
         /// <summary>
@@ -259,7 +259,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("captureDeviceDriver", CaptureDeviceDriver);
             writer.WriteStringValue("captureDeviceName", CaptureDeviceName);
             writer.WriteFloatValue("captureNotFunctioningEventRatio", CaptureNotFunctioningEventRatio);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/DirectRoutingLogRow.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/DirectRoutingLogRow.cs
index 0ff3d92ba28..a2b0f9073d0 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/DirectRoutingLogRow.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/DirectRoutingLogRow.cs
@@ -298,7 +298,7 @@ public DirectRoutingLogRow()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.DirectRoutingLogRow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.DirectRoutingLogRow();
         }
         /// <summary>
@@ -339,7 +339,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("calleeNumber", CalleeNumber);
             writer.WriteIntValue("callEndSubReason", CallEndSubReason);
             writer.WriteStringValue("callerNumber", CallerNumber);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/Endpoint.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/Endpoint.cs
index 642242793b4..ad90363799f 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/Endpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/Endpoint.cs
@@ -68,7 +68,7 @@ public Endpoint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.Endpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -95,7 +95,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.UserAgent>("userAgent", UserAgent);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/FailureInfo.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/FailureInfo.cs
index 3b872f6df45..592773c913c 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/FailureInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/FailureInfo.cs
@@ -74,7 +74,7 @@ public FailureInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.FailureInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.FailureInfo();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("reason", Reason);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallRecords.FailureStage>("stage", Stage);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/FeedbackTokenSet.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/FeedbackTokenSet.cs
index c56c63eb771..136f368aeb2 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/FeedbackTokenSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/FeedbackTokenSet.cs
@@ -52,7 +52,7 @@ public FeedbackTokenSet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.FeedbackTokenSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.FeedbackTokenSet();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/Media.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/Media.cs
index 34e4b5ec33a..147f3f5a24e 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/Media.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/Media.cs
@@ -148,7 +148,7 @@ public Media()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.Media CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.Media();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.DeviceInfo>("calleeDevice", CalleeDevice);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.NetworkInfo>("calleeNetwork", CalleeNetwork);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.DeviceInfo>("callerDevice", CallerDevice);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/MediaStream.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/MediaStream.cs
index 1936620f10b..93d97e0970c 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/MediaStream.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/MediaStream.cs
@@ -242,7 +242,7 @@ public MediaStream()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.MediaStream CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.MediaStream();
         }
         /// <summary>
@@ -292,7 +292,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallRecords.AudioCodec>("audioCodec", AudioCodec);
             writer.WriteFloatValue("averageAudioDegradation", AverageAudioDegradation);
             writer.WriteTimeSpanValue("averageAudioNetworkJitter", AverageAudioNetworkJitter);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/NetworkInfo.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/NetworkInfo.cs
index 41da0cca1f6..a4a0a4d6806 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/NetworkInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/NetworkInfo.cs
@@ -328,7 +328,7 @@ public NetworkInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.NetworkInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.NetworkInfo();
         }
         /// <summary>
@@ -374,7 +374,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteFloatValue("bandwidthLowEventRatio", BandwidthLowEventRatio);
             writer.WriteStringValue("basicServiceSetIdentifier", BasicServiceSetIdentifier);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallRecords.NetworkConnectionType>("connectionType", ConnectionType);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/Organizer.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/Organizer.cs
index c8209c97a8f..4742a581489 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/Organizer.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/Organizer.cs
@@ -26,7 +26,7 @@ public Organizer() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.Organizer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.Organizer();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/Participant.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/Participant.cs
index 6974065eadd..78963d0e428 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/Participant.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/Participant.cs
@@ -26,7 +26,7 @@ public Participant() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.Participant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.Participant();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantBase.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantBase.cs
index e44f0d8e4e3..2334d5219f2 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantBase.cs
@@ -51,7 +51,7 @@ public partial class ParticipantBase : global::Microsoft.Graph.Models.Entity, IP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.ParticipantBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.AdministrativeUnitInfo>("administrativeUnitInfos", AdministrativeUnitInfos);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CommunicationsIdentitySet>("identity", Identity);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantCollectionResponse.cs
index cd27cfad25a..600e664f7b1 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ParticipantCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.ParticipantCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.ParticipantCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.Participant>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantEndpoint.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantEndpoint.cs
index 9cdd6b8da0b..a9eccca5802 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantEndpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/ParticipantEndpoint.cs
@@ -118,7 +118,7 @@ public ParticipantEndpoint() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.ParticipantEndpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.ParticipantEndpoint();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("associatedIdentity", AssociatedIdentity);
             writer.WriteIntValue("cpuCoresCount", CpuCoresCount);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/PstnCallLogRow.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/PstnCallLogRow.cs
index de13e43bcc2..47494ac6071 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/PstnCallLogRow.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/PstnCallLogRow.cs
@@ -360,7 +360,7 @@ public PstnCallLogRow()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.PstnCallLogRow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.PstnCallLogRow();
         }
         /// <summary>
@@ -403,7 +403,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallRecords.PstnCallDurationSource>("callDurationSource", CallDurationSource);
             writer.WriteStringValue("calleeNumber", CalleeNumber);
             writer.WriteStringValue("callerNumber", CallerNumber);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/Segment.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/Segment.cs
index e0ad7d2f34d..cc43bcce371 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/Segment.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/Segment.cs
@@ -95,7 +95,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.Segment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.Segment();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.Endpoint>("callee", Callee);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.Endpoint>("caller", Caller);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/SegmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/SegmentCollectionResponse.cs
index 800c87841dd..cbd20fa98e6 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/SegmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/SegmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SegmentCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.SegmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.SegmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.Segment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceEndpoint.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceEndpoint.cs
index 5e0d54044b9..dc748ab01a4 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceEndpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceEndpoint.cs
@@ -26,7 +26,7 @@ public ServiceEndpoint() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.ServiceEndpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.ServiceEndpoint();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceUserAgent.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceUserAgent.cs
index f930133ca1d..44b9b5745fe 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceUserAgent.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/ServiceUserAgent.cs
@@ -32,7 +32,7 @@ public ServiceUserAgent() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.ServiceUserAgent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.ServiceUserAgent();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallRecords.ServiceRole>("role", Role);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/Session.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/Session.cs
index fc2ac0fbe12..7f028db0b5e 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/Session.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/Session.cs
@@ -117,7 +117,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.Session CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.Session();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.Endpoint>("callee", Callee);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CallRecords.Endpoint>("caller", Caller);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/SessionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/SessionCollectionResponse.cs
index cd4c4cab5ed..5cf8f8d8960 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/SessionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/SessionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SessionCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.SessionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.SessionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.Session>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/TraceRouteHop.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/TraceRouteHop.cs
index 5d128c84781..c5e646ec7fc 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/TraceRouteHop.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/TraceRouteHop.cs
@@ -80,7 +80,7 @@ public TraceRouteHop()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.TraceRouteHop CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.TraceRouteHop();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("hopCount", HopCount);
             writer.WriteStringValue("ipAddress", IpAddress);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/UserAgent.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/UserAgent.cs
index d6e580db0d4..9025f64f06c 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/UserAgent.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/UserAgent.cs
@@ -84,7 +84,7 @@ public UserAgent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.UserAgent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -112,7 +112,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationVersion", ApplicationVersion);
             writer.WriteStringValue("headerValue", HeaderValue);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/UserFeedback.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/UserFeedback.cs
index c16ddffe22b..c4ef6d9c139 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/UserFeedback.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/UserFeedback.cs
@@ -90,7 +90,7 @@ public UserFeedback()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRecords.UserFeedback CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.UserFeedback();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallRecords.UserFeedbackRating>("rating", Rating);
             writer.WriteStringValue("text", Text);
diff --git a/src/Microsoft.Graph/Generated/Models/CallRecords/UserIdentity.cs b/src/Microsoft.Graph/Generated/Models/CallRecords/UserIdentity.cs
index 2d7363adf06..c38e188acea 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRecords/UserIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRecords/UserIdentity.cs
@@ -42,7 +42,7 @@ public UserIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallRecords.UserIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRecords.UserIdentity();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallRoute.cs b/src/Microsoft.Graph/Generated/Models/CallRoute.cs
index e9918393cfd..7cf7a3b108b 100644
--- a/src/Microsoft.Graph/Generated/Models/CallRoute.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallRoute.cs
@@ -90,7 +90,7 @@ public CallRoute()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallRoute CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallRoute();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("final", Final);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("original", Original);
diff --git a/src/Microsoft.Graph/Generated/Models/CallStartedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/CallStartedEventMessageDetail.cs
index 9bf90dab078..fdc9ca9c597 100644
--- a/src/Microsoft.Graph/Generated/Models/CallStartedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallStartedEventMessageDetail.cs
@@ -64,7 +64,7 @@ public CallStartedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallStartedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallStartedEventMessageDetail();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TeamworkCallEventType>("callEventType", CallEventType);
             writer.WriteStringValue("callId", CallId);
diff --git a/src/Microsoft.Graph/Generated/Models/CallTranscript.cs b/src/Microsoft.Graph/Generated/Models/CallTranscript.cs
index 89bb8faabe5..171f9540af4 100644
--- a/src/Microsoft.Graph/Generated/Models/CallTranscript.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallTranscript.cs
@@ -143,7 +143,7 @@ public string TranscriptContentUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallTranscript CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallTranscript();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("callId", CallId);
             writer.WriteByteArrayValue("content", Content);
diff --git a/src/Microsoft.Graph/Generated/Models/CallTranscriptCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CallTranscriptCollectionResponse.cs
index 461185638d1..7cada2a1abf 100644
--- a/src/Microsoft.Graph/Generated/Models/CallTranscriptCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallTranscriptCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CallTranscriptCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallTranscriptCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallTranscriptCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallTranscript>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CallTranscriptEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/CallTranscriptEventMessageDetail.cs
index f12ad57c851..386738d492d 100644
--- a/src/Microsoft.Graph/Generated/Models/CallTranscriptEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallTranscriptEventMessageDetail.cs
@@ -74,7 +74,7 @@ public CallTranscriptEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CallTranscriptEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallTranscriptEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("callId", CallId);
             writer.WriteStringValue("callTranscriptICalUid", CallTranscriptICalUid);
diff --git a/src/Microsoft.Graph/Generated/Models/CallTranscriptionInfo.cs b/src/Microsoft.Graph/Generated/Models/CallTranscriptionInfo.cs
index b03012d08cc..f613f6001d2 100644
--- a/src/Microsoft.Graph/Generated/Models/CallTranscriptionInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/CallTranscriptionInfo.cs
@@ -64,7 +64,7 @@ public CallTranscriptionInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CallTranscriptionInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CallTranscriptionInfo();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CallTranscriptionState>("state", State);
diff --git a/src/Microsoft.Graph/Generated/Models/CancelMediaProcessingOperation.cs b/src/Microsoft.Graph/Generated/Models/CancelMediaProcessingOperation.cs
index 53a6e42eb6b..1d67ff1c1ab 100644
--- a/src/Microsoft.Graph/Generated/Models/CancelMediaProcessingOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/CancelMediaProcessingOperation.cs
@@ -19,7 +19,7 @@ public partial class CancelMediaProcessingOperation : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CancelMediaProcessingOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CancelMediaProcessingOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CanvasLayout.cs b/src/Microsoft.Graph/Generated/Models/CanvasLayout.cs
index 24c03f46607..9d67512d4cd 100644
--- a/src/Microsoft.Graph/Generated/Models/CanvasLayout.cs
+++ b/src/Microsoft.Graph/Generated/Models/CanvasLayout.cs
@@ -51,7 +51,7 @@ public partial class CanvasLayout : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CanvasLayout CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CanvasLayout();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.HorizontalSection>("horizontalSections", HorizontalSections);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.VerticalSection>("verticalSection", VerticalSection);
diff --git a/src/Microsoft.Graph/Generated/Models/CertificateAuthority.cs b/src/Microsoft.Graph/Generated/Models/CertificateAuthority.cs
index 48c0308a5e5..e58a350cfbc 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificateAuthority.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificateAuthority.cs
@@ -138,7 +138,7 @@ public CertificateAuthority()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CertificateAuthority CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificateAuthority();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("certificate", Certificate);
             writer.WriteStringValue("certificateRevocationListUrl", CertificateRevocationListUrl);
             writer.WriteStringValue("deltaCertificateRevocationListUrl", DeltaCertificateRevocationListUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetail.cs b/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetail.cs
index 1c8c51e373c..bc3e9b242e5 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetail.cs
@@ -162,7 +162,7 @@ public CertificateAuthorityDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CertificateAuthorityDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificateAuthorityDetail();
         }
         /// <summary>
@@ -192,7 +192,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("certificate", Certificate);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CertificateAuthorityType>("certificateAuthorityType", CertificateAuthorityType);
diff --git a/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetailCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetailCollectionResponse.cs
index e221a084437..ea2e4c8d4cf 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetailCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificateAuthorityDetailCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CertificateAuthorityDetailCollectionResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CertificateAuthorityDetailCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificateAuthorityDetailCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CertificateAuthorityDetail>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfiguration.cs
index 534ebf15e98..86ba931a43f 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfiguration.cs
@@ -35,7 +35,7 @@ public partial class CertificateBasedAuthConfiguration : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CertificateAuthority>("certificateAuthorities", CertificateAuthorities);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfigurationCollectionResponse.cs
index 94e4730b0d9..fb02d287613 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CertificateBasedAuthConfigurationCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CertificateBasedAuthConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificateBasedAuthConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPki.cs b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPki.cs
index 592ae18892c..a87d945b517 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPki.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPki.cs
@@ -96,7 +96,7 @@ public CertificateBasedAuthPki() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CertificateBasedAuthPki CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificateBasedAuthPki();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CertificateAuthorityDetail>("certificateAuthorities", CertificateAuthorities);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPkiCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPkiCollectionResponse.cs
index 221ce5217c3..9cf446e0200 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPkiCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificateBasedAuthPkiCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CertificateBasedAuthPkiCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CertificateBasedAuthPkiCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificateBasedAuthPkiCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CertificateBasedAuthPki>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Certification.cs b/src/Microsoft.Graph/Generated/Models/Certification.cs
index b2d8e488b1d..a26004b5d71 100644
--- a/src/Microsoft.Graph/Generated/Models/Certification.cs
+++ b/src/Microsoft.Graph/Generated/Models/Certification.cs
@@ -92,7 +92,7 @@ public Certification()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Certification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Certification();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("certificationExpirationDateTime", CertificationExpirationDateTime);
             writer.WriteBoolValue("isPublisherAttested", IsPublisherAttested);
             writer.WriteDateTimeOffsetValue("lastCertificationDateTime", LastCertificationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/CertificationControl.cs b/src/Microsoft.Graph/Generated/Models/CertificationControl.cs
index 39ef432e3b5..1aa72bd9bba 100644
--- a/src/Microsoft.Graph/Generated/Models/CertificationControl.cs
+++ b/src/Microsoft.Graph/Generated/Models/CertificationControl.cs
@@ -84,7 +84,7 @@ public CertificationControl()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CertificationControl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CertificationControl();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("url", Url);
diff --git a/src/Microsoft.Graph/Generated/Models/ChallengingWord.cs b/src/Microsoft.Graph/Generated/Models/ChallengingWord.cs
index c505a576035..ea29a2b0d3d 100644
--- a/src/Microsoft.Graph/Generated/Models/ChallengingWord.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChallengingWord.cs
@@ -74,7 +74,7 @@ public ChallengingWord()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChallengingWord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChallengingWord();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteLongValue("count", Count);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("word", Word);
diff --git a/src/Microsoft.Graph/Generated/Models/ChangeTrackedEntity.cs b/src/Microsoft.Graph/Generated/Models/ChangeTrackedEntity.cs
index ac8c5770dd2..bcc51b78553 100644
--- a/src/Microsoft.Graph/Generated/Models/ChangeTrackedEntity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChangeTrackedEntity.cs
@@ -63,7 +63,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChangeTrackedEntity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -104,7 +104,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Channel.cs b/src/Microsoft.Graph/Generated/Models/Channel.cs
index b0bbe3e8060..ea7f3ba32c9 100644
--- a/src/Microsoft.Graph/Generated/Models/Channel.cs
+++ b/src/Microsoft.Graph/Generated/Models/Channel.cs
@@ -235,7 +235,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Channel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Channel();
         }
         /// <summary>
@@ -270,7 +270,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("allMembers", AllMembers);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelAddedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ChannelAddedEventMessageDetail.cs
index fa89d1d3738..8e86264e589 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelAddedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelAddedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public ChannelAddedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelAddedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelAddedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("channelDisplayName", ChannelDisplayName);
             writer.WriteStringValue("channelId", ChannelId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ChannelCollectionResponse.cs
index 9c97c0c4334..91d5a29dafa 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ChannelCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Channel>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelDeletedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ChannelDeletedEventMessageDetail.cs
index 79f9ed881de..e78593cf6b3 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelDeletedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelDeletedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public ChannelDeletedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelDeletedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelDeletedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("channelDisplayName", ChannelDisplayName);
             writer.WriteStringValue("channelId", ChannelId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelDescriptionUpdatedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ChannelDescriptionUpdatedEventMessageDetail.cs
index 3c5a1316717..f7f71bc5045 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelDescriptionUpdatedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelDescriptionUpdatedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public ChannelDescriptionUpdatedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelDescriptionUpdatedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelDescriptionUpdatedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("channelDescription", ChannelDescription);
             writer.WriteStringValue("channelId", ChannelId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelIdentity.cs b/src/Microsoft.Graph/Generated/Models/ChannelIdentity.cs
index 75b74570d2e..2ed46f8d94f 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelIdentity.cs
@@ -84,7 +84,7 @@ public ChannelIdentity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChannelIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelIdentity();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("channelId", ChannelId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("teamId", TeamId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelMembersNotificationRecipient.cs b/src/Microsoft.Graph/Generated/Models/ChannelMembersNotificationRecipient.cs
index b40ff2eacba..24272d2466c 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelMembersNotificationRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelMembersNotificationRecipient.cs
@@ -58,7 +58,7 @@ public ChannelMembersNotificationRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelMembersNotificationRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelMembersNotificationRecipient();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("channelId", ChannelId);
             writer.WriteStringValue("teamId", TeamId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelRenamedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ChannelRenamedEventMessageDetail.cs
index 1c334cf0db1..8d8cf9dd9a1 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelRenamedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelRenamedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public ChannelRenamedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelRenamedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelRenamedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("channelDisplayName", ChannelDisplayName);
             writer.WriteStringValue("channelId", ChannelId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelSetAsFavoriteByDefaultEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ChannelSetAsFavoriteByDefaultEventMessageDetail.cs
index 8f379ede375..00216a3d1ef 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelSetAsFavoriteByDefaultEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelSetAsFavoriteByDefaultEventMessageDetail.cs
@@ -58,7 +58,7 @@ public ChannelSetAsFavoriteByDefaultEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelSetAsFavoriteByDefaultEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelSetAsFavoriteByDefaultEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("channelId", ChannelId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelSummary.cs b/src/Microsoft.Graph/Generated/Models/ChannelSummary.cs
index bf029f1da06..54d8196aafb 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelSummary.cs
@@ -76,7 +76,7 @@ public ChannelSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChannelSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelSummary();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("guestsCount", GuestsCount);
             writer.WriteBoolValue("hasMembersFromOtherTenants", HasMembersFromOtherTenants);
             writer.WriteIntValue("membersCount", MembersCount);
diff --git a/src/Microsoft.Graph/Generated/Models/ChannelUnsetAsFavoriteByDefaultEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ChannelUnsetAsFavoriteByDefaultEventMessageDetail.cs
index 4e05c9129e6..c8e01934eae 100644
--- a/src/Microsoft.Graph/Generated/Models/ChannelUnsetAsFavoriteByDefaultEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChannelUnsetAsFavoriteByDefaultEventMessageDetail.cs
@@ -58,7 +58,7 @@ public ChannelUnsetAsFavoriteByDefaultEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChannelUnsetAsFavoriteByDefaultEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChannelUnsetAsFavoriteByDefaultEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("channelId", ChannelId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
diff --git a/src/Microsoft.Graph/Generated/Models/Chat.cs b/src/Microsoft.Graph/Generated/Models/Chat.cs
index 1ed46bfb1cc..a55ab6b35f3 100644
--- a/src/Microsoft.Graph/Generated/Models/Chat.cs
+++ b/src/Microsoft.Graph/Generated/Models/Chat.cs
@@ -235,7 +235,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Chat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Chat();
         }
         /// <summary>
@@ -270,7 +270,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ChatType>("chatType", ChatType);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ChatCollectionResponse.cs
index a40c88b1195..125ff171ad0 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ChatCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Chat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatInfo.cs b/src/Microsoft.Graph/Generated/Models/ChatInfo.cs
index 50925256e41..f724a7b8042 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatInfo.cs
@@ -100,7 +100,7 @@ public ChatInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatInfo();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("messageId", MessageId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("replyChainMessageId", ReplyChainMessageId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMembersNotificationRecipient.cs b/src/Microsoft.Graph/Generated/Models/ChatMembersNotificationRecipient.cs
index 7f0fa8f6c04..b20e3d61c06 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMembersNotificationRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMembersNotificationRecipient.cs
@@ -42,7 +42,7 @@ public ChatMembersNotificationRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMembersNotificationRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMembersNotificationRecipient();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("chatId", ChatId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessage.cs b/src/Microsoft.Graph/Generated/Models/ChatMessage.cs
index fdb7e4ccc3f..e33bfadcf31 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessage.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessage.cs
@@ -343,7 +343,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessage();
         }
         /// <summary>
@@ -386,7 +386,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessageAttachment>("attachments", Attachments);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("body", Body);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageAttachment.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageAttachment.cs
index 24cd506e554..d1928c2fac9 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageAttachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageAttachment.cs
@@ -164,7 +164,7 @@ public ChatMessageAttachment()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatMessageAttachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageAttachment();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteStringValue("contentUrl", ContentUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageCollectionResponse.cs
index d92df16fff0..82db0e27865 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ChatMessageCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageFromIdentitySet.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageFromIdentitySet.cs
index 077619d1028..737791a3207 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageFromIdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageFromIdentitySet.cs
@@ -26,7 +26,7 @@ public ChatMessageFromIdentitySet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessageFromIdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageFromIdentitySet();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageHistoryItem.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageHistoryItem.cs
index 9852331438f..0edf3e7c43d 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageHistoryItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageHistoryItem.cs
@@ -80,7 +80,7 @@ public ChatMessageHistoryItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatMessageHistoryItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageHistoryItem();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ChatMessageActions>("actions", Actions);
             writer.WriteDateTimeOffsetValue("modifiedDateTime", ModifiedDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContent.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContent.cs
index 06cc2544cea..859aea42ba3 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContent.cs
@@ -19,7 +19,7 @@ public partial class ChatMessageHostedContent : global::Microsoft.Graph.Models.T
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessageHostedContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageHostedContent();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContentCollectionResponse.cs
index fb80cffb5ce..2310f7a1a0b 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageHostedContentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ChatMessageHostedContentCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessageHostedContentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageHostedContentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessageHostedContent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageInfo.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageInfo.cs
index 59acc176584..4e4adbed0b8 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageInfo.cs
@@ -85,7 +85,7 @@ public bool? IsDeleted
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessageInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageInfo();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("body", Body);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageMention.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageMention.cs
index c1fd9086e2c..05ac800c131 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageMention.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageMention.cs
@@ -90,7 +90,7 @@ public ChatMessageMention()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatMessageMention CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageMention();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("id", Id);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ChatMessageMentionedIdentitySet>("mentioned", Mentioned);
             writer.WriteStringValue("mentionText", MentionText);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageMentionedIdentitySet.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageMentionedIdentitySet.cs
index 9b41e449410..bb8cf2659fd 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageMentionedIdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageMentionedIdentitySet.cs
@@ -42,7 +42,7 @@ public ChatMessageMentionedIdentitySet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessageMentionedIdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageMentionedIdentitySet();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkConversationIdentity>("conversation", Conversation);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolation.cs b/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolation.cs
index d5845e0a535..fbcb7af4ecd 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolation.cs
@@ -102,7 +102,7 @@ public ChatMessagePolicyViolation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatMessagePolicyViolation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessagePolicyViolation();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ChatMessagePolicyViolationDlpActionTypes>("dlpAction", DlpAction);
             writer.WriteStringValue("justificationText", JustificationText);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolationPolicyTip.cs b/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolationPolicyTip.cs
index 2c0326a126d..066786cb578 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolationPolicyTip.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessagePolicyViolationPolicyTip.cs
@@ -100,7 +100,7 @@ public ChatMessagePolicyViolationPolicyTip()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatMessagePolicyViolationPolicyTip CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessagePolicyViolationPolicyTip();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("complianceUrl", ComplianceUrl);
             writer.WriteStringValue("generalText", GeneralText);
             writer.WriteCollectionOfPrimitiveValues<string>("matchedConditionDescriptions", MatchedConditionDescriptions);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageReaction.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageReaction.cs
index c0e56fb90e8..1f9841d74fb 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageReaction.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageReaction.cs
@@ -122,7 +122,7 @@ public ChatMessageReaction()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatMessageReaction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageReaction();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatMessageReactionIdentitySet.cs b/src/Microsoft.Graph/Generated/Models/ChatMessageReactionIdentitySet.cs
index 844e053b940..ed1945c3a89 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatMessageReactionIdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatMessageReactionIdentitySet.cs
@@ -26,7 +26,7 @@ public ChatMessageReactionIdentitySet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatMessageReactionIdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatMessageReactionIdentitySet();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ChatRenamedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ChatRenamedEventMessageDetail.cs
index 1e08dcf4771..e662f3b0ab2 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatRenamedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatRenamedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public ChatRenamedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChatRenamedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatRenamedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("chatDisplayName", ChatDisplayName);
             writer.WriteStringValue("chatId", ChatId);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatRestrictions.cs b/src/Microsoft.Graph/Generated/Models/ChatRestrictions.cs
index fd7f9f0d68c..ea42dba7d25 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatRestrictions.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatRestrictions.cs
@@ -58,7 +58,7 @@ public ChatRestrictions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatRestrictions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatRestrictions();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowTextOnly", AllowTextOnly);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ChatViewpoint.cs b/src/Microsoft.Graph/Generated/Models/ChatViewpoint.cs
index 5dd507c72d1..c480940cd5c 100644
--- a/src/Microsoft.Graph/Generated/Models/ChatViewpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChatViewpoint.cs
@@ -64,7 +64,7 @@ public ChatViewpoint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChatViewpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChatViewpoint();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isHidden", IsHidden);
             writer.WriteDateTimeOffsetValue("lastMessageReadDateTime", LastMessageReadDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ChecklistItem.cs b/src/Microsoft.Graph/Generated/Models/ChecklistItem.cs
index 6e920dc7b47..74e3581acd3 100644
--- a/src/Microsoft.Graph/Generated/Models/ChecklistItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChecklistItem.cs
@@ -53,7 +53,7 @@ public bool? IsChecked
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChecklistItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChecklistItem();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("checkedDateTime", CheckedDateTime);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ChecklistItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ChecklistItemCollectionResponse.cs
index ccb556420b6..b9e2ac7a8b0 100644
--- a/src/Microsoft.Graph/Generated/Models/ChecklistItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChecklistItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ChecklistItemCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ChecklistItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChecklistItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChecklistItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ChoiceColumn.cs b/src/Microsoft.Graph/Generated/Models/ChoiceColumn.cs
index c877d72dddf..15feb18494b 100644
--- a/src/Microsoft.Graph/Generated/Models/ChoiceColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/ChoiceColumn.cs
@@ -90,7 +90,7 @@ public ChoiceColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ChoiceColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ChoiceColumn();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowTextEntry", AllowTextEntry);
             writer.WriteCollectionOfPrimitiveValues<string>("choices", Choices);
             writer.WriteStringValue("displayAs", DisplayAs);
diff --git a/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicy.cs b/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicy.cs
index e2b71f069d8..f1b46db3e77 100644
--- a/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicy.cs
@@ -26,7 +26,7 @@ public ClaimsMappingPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ClaimsMappingPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ClaimsMappingPolicy();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicyCollectionResponse.cs
index fb9beea6092..a8bff088a41 100644
--- a/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ClaimsMappingPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ClaimsMappingPolicyCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ClaimsMappingPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ClaimsMappingPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ClaimsMappingPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ClassifcationErrorBase.cs b/src/Microsoft.Graph/Generated/Models/ClassifcationErrorBase.cs
index d477d57e4fe..1b4a508e4ba 100644
--- a/src/Microsoft.Graph/Generated/Models/ClassifcationErrorBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ClassifcationErrorBase.cs
@@ -116,7 +116,7 @@ public ClassifcationErrorBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ClassifcationErrorBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -146,7 +146,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ClassificationInnerError>("innerError", InnerError);
             writer.WriteStringValue("message", Message);
diff --git a/src/Microsoft.Graph/Generated/Models/ClassificationError.cs b/src/Microsoft.Graph/Generated/Models/ClassificationError.cs
index 9647ea8e15d..8def08bf861 100644
--- a/src/Microsoft.Graph/Generated/Models/ClassificationError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ClassificationError.cs
@@ -35,7 +35,7 @@ public partial class ClassificationError : global::Microsoft.Graph.Models.Classi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ClassificationError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -60,7 +60,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ClassifcationErrorBase>("details", Details);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ClassificationInnerError.cs b/src/Microsoft.Graph/Generated/Models/ClassificationInnerError.cs
index 36471bbc6a3..47ae566911e 100644
--- a/src/Microsoft.Graph/Generated/Models/ClassificationInnerError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ClassificationInnerError.cs
@@ -106,7 +106,7 @@ public ClassificationInnerError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ClassificationInnerError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ClassificationInnerError();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityId", ActivityId);
             writer.WriteStringValue("clientRequestId", ClientRequestId);
             writer.WriteStringValue("code", Code);
diff --git a/src/Microsoft.Graph/Generated/Models/ClientCertificateAuthentication.cs b/src/Microsoft.Graph/Generated/Models/ClientCertificateAuthentication.cs
index 72329f49493..f87a3a24d3f 100644
--- a/src/Microsoft.Graph/Generated/Models/ClientCertificateAuthentication.cs
+++ b/src/Microsoft.Graph/Generated/Models/ClientCertificateAuthentication.cs
@@ -42,7 +42,7 @@ public ClientCertificateAuthentication() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ClientCertificateAuthentication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ClientCertificateAuthentication();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Pkcs12CertificateInformation>("certificateList", CertificateList);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudAppSecuritySessionControl.cs b/src/Microsoft.Graph/Generated/Models/CloudAppSecuritySessionControl.cs
index 0b7fd2ae5d8..43692a0db5e 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudAppSecuritySessionControl.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudAppSecuritySessionControl.cs
@@ -32,7 +32,7 @@ public CloudAppSecuritySessionControl() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudAppSecuritySessionControl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudAppSecuritySessionControl();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CloudAppSecuritySessionControlType>("cloudAppSecurityType", CloudAppSecurityType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudAppSecurityState.cs b/src/Microsoft.Graph/Generated/Models/CloudAppSecurityState.cs
index 3f93c78e00c..f3070e0d22e 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudAppSecurityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudAppSecurityState.cs
@@ -100,7 +100,7 @@ public CloudAppSecurityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudAppSecurityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudAppSecurityState();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("destinationServiceIp", DestinationServiceIp);
             writer.WriteStringValue("destinationServiceName", DestinationServiceName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudClipboardItem.cs b/src/Microsoft.Graph/Generated/Models/CloudClipboardItem.cs
index 37b5dc6a56f..a87466b1c2f 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudClipboardItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudClipboardItem.cs
@@ -53,7 +53,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudClipboardItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudClipboardItem();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudClipboardItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudClipboardItemCollectionResponse.cs
index d279cabb68d..2762f806738 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudClipboardItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudClipboardItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudClipboardItemCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudClipboardItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudClipboardItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudClipboardItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudClipboardItemPayload.cs b/src/Microsoft.Graph/Generated/Models/CloudClipboardItemPayload.cs
index fc62a7d1bd5..6cfdf32af2c 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudClipboardItemPayload.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudClipboardItemPayload.cs
@@ -84,7 +84,7 @@ public CloudClipboardItemPayload()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudClipboardItemPayload CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudClipboardItemPayload();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("formatName", FormatName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudClipboardRoot.cs b/src/Microsoft.Graph/Generated/Models/CloudClipboardRoot.cs
index 63669ecc60e..bb5d4b3734e 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudClipboardRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudClipboardRoot.cs
@@ -35,7 +35,7 @@ public partial class CloudClipboardRoot : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudClipboardRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudClipboardRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudClipboardItem>("items", Items);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudCommunications.cs b/src/Microsoft.Graph/Generated/Models/CloudCommunications.cs
index 623cb3a6d33..d93992dee3a 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudCommunications.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudCommunications.cs
@@ -117,7 +117,7 @@ public CloudCommunications()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudCommunications CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudCommunications();
         }
         /// <summary>
@@ -141,7 +141,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecords.CallRecord>("callRecords", CallRecords);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Call>("calls", Calls);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPC.cs b/src/Microsoft.Graph/Generated/Models/CloudPC.cs
index 6d810a49e87..02a29a805fd 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPC.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPC.cs
@@ -213,7 +213,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPC CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPC();
         }
         /// <summary>
@@ -246,7 +246,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("aadDeviceId", AadDeviceId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPCCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPCCollectionResponse.cs
index 9d071517831..f0290e17a9e 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPCCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPCCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPCCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPCCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPCCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPC>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcAuditActor.cs b/src/Microsoft.Graph/Generated/Models/CloudPcAuditActor.cs
index c6272ce2d4c..a5c0e5607ce 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcAuditActor.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcAuditActor.cs
@@ -212,7 +212,7 @@ public CloudPcAuditActor()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcAuditActor CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcAuditActor();
         }
         /// <summary>
@@ -242,7 +242,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationDisplayName", ApplicationDisplayName);
             writer.WriteStringValue("applicationId", ApplicationId);
             writer.WriteStringValue("ipAddress", IpAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcAuditEvent.cs b/src/Microsoft.Graph/Generated/Models/CloudPcAuditEvent.cs
index 8e8db5da891..6dddca62286 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcAuditEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcAuditEvent.cs
@@ -155,7 +155,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcAuditEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcAuditEvent();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("activity", Activity);
             writer.WriteDateTimeOffsetValue("activityDateTime", ActivityDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcAuditEventCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcAuditEventCollectionResponse.cs
index 2cdee849a38..d6ff09cd6e7 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcAuditEventCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcAuditEventCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcAuditEventCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcAuditEventCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcAuditEventCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcAuditEvent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcAuditProperty.cs b/src/Microsoft.Graph/Generated/Models/CloudPcAuditProperty.cs
index 66366e75693..d84ad5f5b72 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcAuditProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcAuditProperty.cs
@@ -100,7 +100,7 @@ public CloudPcAuditProperty()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcAuditProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcAuditProperty();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("newValue", NewValue);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcAuditResource.cs b/src/Microsoft.Graph/Generated/Models/CloudPcAuditResource.cs
index 8f8f2cc5649..b2cf4d088ee 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcAuditResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcAuditResource.cs
@@ -100,7 +100,7 @@ public CloudPcAuditResource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcAuditResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcAuditResource();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcAuditProperty>("modifiedProperties", ModifiedProperties);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImage.cs b/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImage.cs
index b8817e58d40..dd24a7e1bbf 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImage.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImage.cs
@@ -130,7 +130,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcDeviceImage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcDeviceImage();
         }
         /// <summary>
@@ -159,7 +159,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CloudPcDeviceImageErrorCode>("errorCode", ErrorCode);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImageCollectionResponse.cs
index 66bf7c6e065..13c03cc04ca 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcDeviceImageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcDeviceImageCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcDeviceImageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcDeviceImageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcDeviceImage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcDomainJoinConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CloudPcDomainJoinConfiguration.cs
index e5571cef47f..71616a7b21d 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcDomainJoinConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcDomainJoinConfiguration.cs
@@ -96,7 +96,7 @@ public CloudPcDomainJoinConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcDomainJoinConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcDomainJoinConfiguration();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CloudPcDomainJoinType>("domainJoinType", DomainJoinType);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("onPremisesConnectionId", OnPremisesConnectionId);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImage.cs b/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImage.cs
index 64d359093e1..641a086c3f1 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImage.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImage.cs
@@ -114,7 +114,7 @@ public Date? StartDate
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcGalleryImage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcGalleryImage();
         }
         /// <summary>
@@ -142,7 +142,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateValue("endDate", EndDate);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImageCollectionResponse.cs
index ad786eb013f..fc0b4204598 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcGalleryImageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcGalleryImageCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcGalleryImageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcGalleryImageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcGalleryImage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcManagementAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/CloudPcManagementAssignmentTarget.cs
index e9ec7244c86..485621211d9 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcManagementAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcManagementAssignmentTarget.cs
@@ -52,7 +52,7 @@ public CloudPcManagementAssignmentTarget()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcManagementAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcManagementGroupAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/CloudPcManagementGroupAssignmentTarget.cs
index 89b6cb27415..0845ba0fc77 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcManagementGroupAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcManagementGroupAssignmentTarget.cs
@@ -58,7 +58,7 @@ public CloudPcManagementGroupAssignmentTarget() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcManagementGroupAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcManagementGroupAssignmentTarget();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("servicePlanId", ServicePlanId);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnection.cs b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnection.cs
index 0419d87f9da..0f0e9d0ae3d 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnection.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnection.cs
@@ -245,7 +245,7 @@ public string VirtualNetworkLocation
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcOnPremisesConnection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcOnPremisesConnection();
         }
         /// <summary>
@@ -280,7 +280,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("adDomainName", AdDomainName);
             writer.WriteStringValue("adDomainPassword", AdDomainPassword);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionCollectionResponse.cs
index ff203b67748..d4f30e3b25d 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcOnPremisesConnectionCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcOnPremisesConnectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcOnPremisesConnectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcOnPremisesConnection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionHealthCheck.cs b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionHealthCheck.cs
index 01a219d5ac7..a8de41fe54c 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionHealthCheck.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionHealthCheck.cs
@@ -140,7 +140,7 @@ public CloudPcOnPremisesConnectionHealthCheck()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcOnPremisesConnectionHealthCheck CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcOnPremisesConnectionHealthCheck();
         }
         /// <summary>
@@ -168,7 +168,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("additionalDetail", AdditionalDetail);
             writer.WriteStringValue("correlationId", CorrelationId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionStatusDetail.cs b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionStatusDetail.cs
index 075b240449d..3df3650a343 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionStatusDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcOnPremisesConnectionStatusDetail.cs
@@ -80,7 +80,7 @@ public CloudPcOnPremisesConnectionStatusDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcOnPremisesConnectionStatusDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcOnPremisesConnectionStatusDetail();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcOnPremisesConnectionHealthCheck>("healthChecks", HealthChecks);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicy.cs b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicy.cs
index 1029d34ea82..5ac0fd471f9 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicy.cs
@@ -241,7 +241,7 @@ public bool? LocalAdminEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcProvisioningPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcProvisioningPolicy();
         }
         /// <summary>
@@ -277,7 +277,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("alternateResourceUrl", AlternateResourceUrl);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment>("assignments", Assignments);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignment.cs b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignment.cs
index a9f97dfc088..96caf47eede 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignment.cs
@@ -51,7 +51,7 @@ public partial class CloudPcProvisioningPolicyAssignment : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.User>("assignedUsers", AssignedUsers);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CloudPcManagementAssignmentTarget>("target", Target);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignmentCollectionResponse.cs
index da20ebf07c4..db10f72c0f9 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcProvisioningPolicyAssignmentCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAutopatch.cs b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAutopatch.cs
index 08e2da6cb9d..5be750712fc 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAutopatch.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyAutopatch.cs
@@ -68,7 +68,7 @@ public CloudPcProvisioningPolicyAutopatch()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAutopatch CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcProvisioningPolicyAutopatch();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("autopatchGroupId", AutopatchGroupId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyCollectionResponse.cs
index 61e41d24d60..4d12c3789c1 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcProvisioningPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcProvisioningPolicyCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcProvisioningPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcProvisioningPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcProvisioningPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcRestorePointSetting.cs b/src/Microsoft.Graph/Generated/Models/CloudPcRestorePointSetting.cs
index bd16d182613..c96e6e4efaf 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcRestorePointSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcRestorePointSetting.cs
@@ -64,7 +64,7 @@ public CloudPcRestorePointSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcRestorePointSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcRestorePointSetting();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CloudPcRestorePointFrequencyType>("frequencyType", FrequencyType);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("userRestoreEnabled", UserRestoreEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcSourceDeviceImage.cs b/src/Microsoft.Graph/Generated/Models/CloudPcSourceDeviceImage.cs
index 60aa03f068e..4739ed5ce24 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcSourceDeviceImage.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcSourceDeviceImage.cs
@@ -116,7 +116,7 @@ public CloudPcSourceDeviceImage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcSourceDeviceImage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcSourceDeviceImage();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("resourceId", ResourceId);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcUserRoleScopeTagInfo.cs b/src/Microsoft.Graph/Generated/Models/CloudPcUserRoleScopeTagInfo.cs
index 575f6e4da02..355e02daea6 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcUserRoleScopeTagInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcUserRoleScopeTagInfo.cs
@@ -84,7 +84,7 @@ public CloudPcUserRoleScopeTagInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcUserRoleScopeTagInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcUserRoleScopeTagInfo();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("roleScopeTagId", RoleScopeTagId);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcUserSetting.cs b/src/Microsoft.Graph/Generated/Models/CloudPcUserSetting.cs
index ee95b4d2e8d..dea29330e3d 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcUserSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcUserSetting.cs
@@ -91,7 +91,7 @@ public bool? ResetEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcUserSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcUserSetting();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcUserSettingAssignment>("assignments", Assignments);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignment.cs b/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignment.cs
index 21c7a38e2bc..594659faad4 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignment.cs
@@ -41,7 +41,7 @@ public DateTimeOffset? CreatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcUserSettingAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcUserSettingAssignment();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CloudPcManagementAssignmentTarget>("target", Target);
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignmentCollectionResponse.cs
index ecb7c9b07a9..e69044bc5cf 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcUserSettingAssignmentCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcUserSettingAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcUserSettingAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcUserSettingAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingCollectionResponse.cs
index f7295094c18..8c1f6c38b30 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcUserSettingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CloudPcUserSettingCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CloudPcUserSettingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcUserSettingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcUserSetting>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CloudPcWindowsSetting.cs b/src/Microsoft.Graph/Generated/Models/CloudPcWindowsSetting.cs
index 6456fa89443..93b62c6108b 100644
--- a/src/Microsoft.Graph/Generated/Models/CloudPcWindowsSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/CloudPcWindowsSetting.cs
@@ -68,7 +68,7 @@ public CloudPcWindowsSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CloudPcWindowsSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CloudPcWindowsSetting();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("locale", Locale);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CoachmarkLocation.cs b/src/Microsoft.Graph/Generated/Models/CoachmarkLocation.cs
index ae0b390c084..feb84bd0bcd 100644
--- a/src/Microsoft.Graph/Generated/Models/CoachmarkLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/CoachmarkLocation.cs
@@ -70,7 +70,7 @@ public CoachmarkLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CoachmarkLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CoachmarkLocation();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("length", Length);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("offset", Offset);
diff --git a/src/Microsoft.Graph/Generated/Models/CollapseProperty.cs b/src/Microsoft.Graph/Generated/Models/CollapseProperty.cs
index a18daeb606c..f6482e642db 100644
--- a/src/Microsoft.Graph/Generated/Models/CollapseProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/CollapseProperty.cs
@@ -74,7 +74,7 @@ public CollapseProperty()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CollapseProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CollapseProperty();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("fields", Fields);
             writer.WriteIntValue("limit", Limit);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ColumnDefinition.cs b/src/Microsoft.Graph/Generated/Models/ColumnDefinition.cs
index d05ae2c7548..8c72b2480c1 100644
--- a/src/Microsoft.Graph/Generated/Models/ColumnDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/ColumnDefinition.cs
@@ -431,7 +431,7 @@ public bool? Required
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ColumnDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ColumnDefinition();
         }
         /// <summary>
@@ -482,7 +482,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BooleanColumn>("boolean", Boolean);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CalculatedColumn>("calculated", Calculated);
diff --git a/src/Microsoft.Graph/Generated/Models/ColumnDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ColumnDefinitionCollectionResponse.cs
index be78b319bcb..0eefab0d3b1 100644
--- a/src/Microsoft.Graph/Generated/Models/ColumnDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ColumnDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ColumnDefinitionCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ColumnDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ColumnDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ColumnDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ColumnLink.cs b/src/Microsoft.Graph/Generated/Models/ColumnLink.cs
index 3d099c119e5..c30a68f9de2 100644
--- a/src/Microsoft.Graph/Generated/Models/ColumnLink.cs
+++ b/src/Microsoft.Graph/Generated/Models/ColumnLink.cs
@@ -35,7 +35,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ColumnLink CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ColumnLink();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ColumnLinkCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ColumnLinkCollectionResponse.cs
index 274b69be309..c57a1adc53f 100644
--- a/src/Microsoft.Graph/Generated/Models/ColumnLinkCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ColumnLinkCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ColumnLinkCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ColumnLinkCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ColumnLinkCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ColumnLink>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ColumnValidation.cs b/src/Microsoft.Graph/Generated/Models/ColumnValidation.cs
index d167353d51b..9aabb53dd7f 100644
--- a/src/Microsoft.Graph/Generated/Models/ColumnValidation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ColumnValidation.cs
@@ -100,7 +100,7 @@ public ColumnValidation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ColumnValidation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ColumnValidation();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("defaultLanguage", DefaultLanguage);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DisplayNameLocalization>("descriptions", Descriptions);
             writer.WriteStringValue("formula", Formula);
diff --git a/src/Microsoft.Graph/Generated/Models/CommsOperation.cs b/src/Microsoft.Graph/Generated/Models/CommsOperation.cs
index be0e44bbd07..3c198431871 100644
--- a/src/Microsoft.Graph/Generated/Models/CommsOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommsOperation.cs
@@ -57,7 +57,7 @@ public string ClientContext
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommsOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -95,7 +95,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("clientContext", ClientContext);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ResultInfo>("resultInfo", ResultInfo);
diff --git a/src/Microsoft.Graph/Generated/Models/CommsOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CommsOperationCollectionResponse.cs
index 5faa70b5e51..ebb68d730bc 100644
--- a/src/Microsoft.Graph/Generated/Models/CommsOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommsOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CommsOperationCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommsOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommsOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CommsOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationIdentity.cs b/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationIdentity.cs
index 95eac978581..eb132f2ae6e 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationIdentity.cs
@@ -48,7 +48,7 @@ public CommunicationsApplicationIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunicationsApplicationIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunicationsApplicationIdentity();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("applicationType", ApplicationType);
             writer.WriteBoolValue("hidden", Hidden);
diff --git a/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationInstanceIdentity.cs b/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationInstanceIdentity.cs
index 1befe076c08..cce16963c57 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationInstanceIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunicationsApplicationInstanceIdentity.cs
@@ -48,7 +48,7 @@ public CommunicationsApplicationInstanceIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunicationsApplicationInstanceIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunicationsApplicationInstanceIdentity();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("hidden", Hidden);
             writer.WriteStringValue("tenantId", TenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/CommunicationsEncryptedIdentity.cs b/src/Microsoft.Graph/Generated/Models/CommunicationsEncryptedIdentity.cs
index 2aed0b01325..a7807c83c91 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunicationsEncryptedIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunicationsEncryptedIdentity.cs
@@ -26,7 +26,7 @@ public CommunicationsEncryptedIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunicationsEncryptedIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunicationsEncryptedIdentity();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CommunicationsGuestIdentity.cs b/src/Microsoft.Graph/Generated/Models/CommunicationsGuestIdentity.cs
index 7e25648568f..6f5048cd3d4 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunicationsGuestIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunicationsGuestIdentity.cs
@@ -26,7 +26,7 @@ public CommunicationsGuestIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunicationsGuestIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunicationsGuestIdentity();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CommunicationsIdentitySet.cs b/src/Microsoft.Graph/Generated/Models/CommunicationsIdentitySet.cs
index 25391d6754b..aaad395c5ed 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunicationsIdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunicationsIdentitySet.cs
@@ -144,7 +144,7 @@ public CommunicationsIdentitySet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunicationsIdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunicationsIdentitySet();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("applicationInstance", ApplicationInstance);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("assertedIdentity", AssertedIdentity);
diff --git a/src/Microsoft.Graph/Generated/Models/CommunicationsPhoneIdentity.cs b/src/Microsoft.Graph/Generated/Models/CommunicationsPhoneIdentity.cs
index 09ecab1935e..62c76a6c6f8 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunicationsPhoneIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunicationsPhoneIdentity.cs
@@ -26,7 +26,7 @@ public CommunicationsPhoneIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunicationsPhoneIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunicationsPhoneIdentity();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CommunicationsUserIdentity.cs b/src/Microsoft.Graph/Generated/Models/CommunicationsUserIdentity.cs
index 45c2c425939..b35093f0589 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunicationsUserIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunicationsUserIdentity.cs
@@ -42,7 +42,7 @@ public CommunicationsUserIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunicationsUserIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunicationsUserIdentity();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("tenantId", TenantId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Community.cs b/src/Microsoft.Graph/Generated/Models/Community.cs
index b93150f4d6d..9a9a0e8ebe5 100644
--- a/src/Microsoft.Graph/Generated/Models/Community.cs
+++ b/src/Microsoft.Graph/Generated/Models/Community.cs
@@ -106,7 +106,7 @@ public string GroupId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Community CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Community();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/CommunityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CommunityCollectionResponse.cs
index e3d5006fa2d..eb9bfe49bbe 100644
--- a/src/Microsoft.Graph/Generated/Models/CommunityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CommunityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CommunityCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CommunityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CommunityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Community>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CompanySubscription.cs b/src/Microsoft.Graph/Generated/Models/CompanySubscription.cs
index ad0c868bd3f..05c364809ab 100644
--- a/src/Microsoft.Graph/Generated/Models/CompanySubscription.cs
+++ b/src/Microsoft.Graph/Generated/Models/CompanySubscription.cs
@@ -171,7 +171,7 @@ public int? TotalLicenses
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CompanySubscription CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CompanySubscription();
         }
         /// <summary>
@@ -202,7 +202,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("commerceSubscriptionId", CommerceSubscriptionId);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/CompanySubscriptionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CompanySubscriptionCollectionResponse.cs
index 0a67213da65..0fe0a6ac56a 100644
--- a/src/Microsoft.Graph/Generated/Models/CompanySubscriptionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CompanySubscriptionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CompanySubscriptionCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CompanySubscriptionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CompanySubscriptionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CompanySubscription>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Compliance.cs b/src/Microsoft.Graph/Generated/Models/Compliance.cs
index 5767cdf6647..2d6b1a98508 100644
--- a/src/Microsoft.Graph/Generated/Models/Compliance.cs
+++ b/src/Microsoft.Graph/Generated/Models/Compliance.cs
@@ -52,7 +52,7 @@ public Compliance()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Compliance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Compliance();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ComplianceInformation.cs b/src/Microsoft.Graph/Generated/Models/ComplianceInformation.cs
index 8611b6311a7..bfa92a554e3 100644
--- a/src/Microsoft.Graph/Generated/Models/ComplianceInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ComplianceInformation.cs
@@ -84,7 +84,7 @@ public ComplianceInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ComplianceInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ComplianceInformation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CertificationControl>("certificationControls", CertificationControls);
             writer.WriteStringValue("certificationName", CertificationName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartner.cs b/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartner.cs
index 92db75fc299..17fcd482fd0 100644
--- a/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartner.cs
+++ b/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartner.cs
@@ -114,7 +114,7 @@ public bool? MacOsOnboarded
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ComplianceManagementPartner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ComplianceManagementPartner();
         }
         /// <summary>
@@ -142,7 +142,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ComplianceManagementPartnerAssignment>("androidEnrollmentAssignments", AndroidEnrollmentAssignments);
             writer.WriteBoolValue("androidOnboarded", AndroidOnboarded);
diff --git a/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerAssignment.cs b/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerAssignment.cs
index e3f4b440a00..3efc3dc5b48 100644
--- a/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerAssignment.cs
@@ -69,7 +69,7 @@ public ComplianceManagementPartnerAssignment()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ComplianceManagementPartnerAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ComplianceManagementPartnerAssignment();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerCollectionResponse.cs
index cffab28c3f9..0d1bcedc99f 100644
--- a/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ComplianceManagementPartnerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ComplianceManagementPartnerCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ComplianceManagementPartnerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ComplianceManagementPartnerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ComplianceManagementPartner>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ComputeRightsAndInheritanceResult.cs b/src/Microsoft.Graph/Generated/Models/ComputeRightsAndInheritanceResult.cs
index 143043dcd3e..04715b76583 100644
--- a/src/Microsoft.Graph/Generated/Models/ComputeRightsAndInheritanceResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/ComputeRightsAndInheritanceResult.cs
@@ -100,7 +100,7 @@ public ComputeRightsAndInheritanceResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LabelContentRight>("contentRights", ContentRights);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SensitivityLabel>("inheritedLabel", InheritedLabel);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessAllExternalTenants.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessAllExternalTenants.cs
index 5af522fabb3..f3b033ed6cd 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessAllExternalTenants.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessAllExternalTenants.cs
@@ -26,7 +26,7 @@ public ConditionalAccessAllExternalTenants() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConditionalAccessAllExternalTenants CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessAllExternalTenants();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessApplications.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessApplications.cs
index 1ccfcfa7576..a0ec881cbbe 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessApplications.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessApplications.cs
@@ -132,7 +132,7 @@ public ConditionalAccessApplications()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessApplications CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessApplications();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessFilter>("applicationFilter", ApplicationFilter);
             writer.WriteCollectionOfPrimitiveValues<string>("excludeApplications", ExcludeApplications);
             writer.WriteCollectionOfPrimitiveValues<string>("includeApplications", IncludeApplications);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessAuthenticationFlows.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessAuthenticationFlows.cs
index 7ba098d74f6..48ac729be30 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessAuthenticationFlows.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessAuthenticationFlows.cs
@@ -58,7 +58,7 @@ public ConditionalAccessAuthenticationFlows()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessAuthenticationFlows CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessAuthenticationFlows();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ConditionalAccessTransferMethods>("transferMethods", TransferMethods);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessClientApplications.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessClientApplications.cs
index 96a6816592d..cf8ea7c1a15 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessClientApplications.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessClientApplications.cs
@@ -100,7 +100,7 @@ public ConditionalAccessClientApplications()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessClientApplications CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessClientApplications();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("excludeServicePrincipals", ExcludeServicePrincipals);
             writer.WriteCollectionOfPrimitiveValues<string>("includeServicePrincipals", IncludeServicePrincipals);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessConditionSet.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessConditionSet.cs
index 273c2a3a2d4..3fd7f193cd6 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessConditionSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessConditionSet.cs
@@ -234,7 +234,7 @@ public ConditionalAccessConditionSet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessConditionSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessConditionSet();
         }
         /// <summary>
@@ -266,7 +266,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessApplications>("applications", Applications);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessAuthenticationFlows>("authenticationFlows", AuthenticationFlows);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessClientApplications>("clientApplications", ClientApplications);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessDevices.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessDevices.cs
index cb7ad83e917..7edc075fd27 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessDevices.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessDevices.cs
@@ -68,7 +68,7 @@ public ConditionalAccessDevices()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessDevices CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessDevices();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessFilter>("deviceFilter", DeviceFilter);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessEnumeratedExternalTenants.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessEnumeratedExternalTenants.cs
index 12e29dc1457..be7560fdc0e 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessEnumeratedExternalTenants.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessEnumeratedExternalTenants.cs
@@ -42,7 +42,7 @@ public ConditionalAccessEnumeratedExternalTenants() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConditionalAccessEnumeratedExternalTenants CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessEnumeratedExternalTenants();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("members", Members);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessExternalTenants.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessExternalTenants.cs
index 8689ceb5292..fcdf3be9cde 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessExternalTenants.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessExternalTenants.cs
@@ -58,7 +58,7 @@ public ConditionalAccessExternalTenants()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessExternalTenants CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -85,7 +85,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ConditionalAccessExternalTenantsMembershipKind>("membershipKind", MembershipKind);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessFilter.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessFilter.cs
index 34f4f5baf99..3b2dd5b2cf4 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessFilter.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessFilter.cs
@@ -74,7 +74,7 @@ public ConditionalAccessFilter()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessFilter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessFilter();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.FilterMode>("mode", Mode);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("rule", Rule);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessGrantControls.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessGrantControls.cs
index 75f287359d6..a47939652af 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessGrantControls.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessGrantControls.cs
@@ -132,7 +132,7 @@ public ConditionalAccessGrantControls()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessGrantControls CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessGrantControls();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationStrengthPolicy>("authenticationStrength", AuthenticationStrength);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.ConditionalAccessGrantControl>("builtInControls", BuiltInControls);
             writer.WriteCollectionOfPrimitiveValues<string>("customAuthenticationFactors", CustomAuthenticationFactors);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessGuestsOrExternalUsers.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessGuestsOrExternalUsers.cs
index 05fc6a0ca51..263a4b10dcb 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessGuestsOrExternalUsers.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessGuestsOrExternalUsers.cs
@@ -74,7 +74,7 @@ public ConditionalAccessGuestsOrExternalUsers()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessGuestsOrExternalUsers CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessGuestsOrExternalUsers();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessExternalTenants>("externalTenants", ExternalTenants);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ConditionalAccessGuestOrExternalUserTypes>("guestOrExternalUserTypes", GuestOrExternalUserTypes);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessLocations.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessLocations.cs
index 5fc5518ed4c..d40df83c372 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessLocations.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessLocations.cs
@@ -84,7 +84,7 @@ public ConditionalAccessLocations()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessLocations CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessLocations();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("excludeLocations", ExcludeLocations);
             writer.WriteCollectionOfPrimitiveValues<string>("includeLocations", IncludeLocations);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPlatforms.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPlatforms.cs
index 1181bb36d7d..5aa3175f311 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPlatforms.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPlatforms.cs
@@ -84,7 +84,7 @@ public ConditionalAccessPlatforms()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessPlatforms CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessPlatforms();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.ConditionalAccessDevicePlatform>("excludePlatforms", ExcludePlatforms);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.ConditionalAccessDevicePlatform>("includePlatforms", IncludePlatforms);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicy.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicy.cs
index 3450120c1f1..130224544b1 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicy.cs
@@ -133,7 +133,7 @@ public string TemplateId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConditionalAccessPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -166,7 +166,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessConditionSet>("conditions", Conditions);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyCollectionResponse.cs
index dd86d277374..34e7dd7f18b 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ConditionalAccessPolicyCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConditionalAccessPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConditionalAccessPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyDetail.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyDetail.cs
index dde33d0e029..bea137aa9b1 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessPolicyDetail.cs
@@ -100,7 +100,7 @@ public ConditionalAccessPolicyDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessPolicyDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessPolicyDetail();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessConditionSet>("conditions", Conditions);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessGrantControls>("grantControls", GrantControls);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessRoot.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessRoot.cs
index 98843f3f3c6..143cc5cba70 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessRoot.cs
@@ -99,7 +99,7 @@ public partial class ConditionalAccessRoot : global::Microsoft.Graph.Models.Enti
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConditionalAccessRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessRoot();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationContextClassReference>("authenticationContextClassReferences", AuthenticationContextClassReferences);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationStrengthRoot>("authenticationStrength", AuthenticationStrength);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControl.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControl.cs
index f4e63ed5e85..0157d4fc81a 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControl.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControl.cs
@@ -58,7 +58,7 @@ public ConditionalAccessSessionControl()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessSessionControl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -88,7 +88,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControls.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControls.cs
index 1dc9f787df3..30d90f9c645 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControls.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessSessionControls.cs
@@ -138,7 +138,7 @@ public ConditionalAccessSessionControls()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessSessionControls CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessSessionControls();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ApplicationEnforcedRestrictionsSessionControl>("applicationEnforcedRestrictions", ApplicationEnforcedRestrictions);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CloudAppSecuritySessionControl>("cloudAppSecurity", CloudAppSecurity);
             writer.WriteBoolValue("disableResilienceDefaults", DisableResilienceDefaults);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplate.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplate.cs
index b2e196a514c..df8e9bd8dfd 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplate.cs
@@ -73,7 +73,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConditionalAccessTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessTemplate();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessPolicyDetail>("details", Details);
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplateCollectionResponse.cs
index d46e4a391e0..6e2ac783e92 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ConditionalAccessTemplateCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConditionalAccessTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConditionalAccessTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConditionalAccessUsers.cs b/src/Microsoft.Graph/Generated/Models/ConditionalAccessUsers.cs
index e2f0baf5549..ea9137f7c57 100644
--- a/src/Microsoft.Graph/Generated/Models/ConditionalAccessUsers.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConditionalAccessUsers.cs
@@ -180,7 +180,7 @@ public ConditionalAccessUsers()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConditionalAccessUsers CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConditionalAccessUsers();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("excludeGroups", ExcludeGroups);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ConditionalAccessGuestsOrExternalUsers>("excludeGuestsOrExternalUsers", ExcludeGuestsOrExternalUsers);
             writer.WriteCollectionOfPrimitiveValues<string>("excludeRoles", ExcludeRoles);
diff --git a/src/Microsoft.Graph/Generated/Models/ConfigurationManagerClientEnabledFeatures.cs b/src/Microsoft.Graph/Generated/Models/ConfigurationManagerClientEnabledFeatures.cs
index bdd27eba54b..d3677a647b9 100644
--- a/src/Microsoft.Graph/Generated/Models/ConfigurationManagerClientEnabledFeatures.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConfigurationManagerClientEnabledFeatures.cs
@@ -89,7 +89,7 @@ public ConfigurationManagerClientEnabledFeatures()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConfigurationManagerClientEnabledFeatures CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConfigurationManagerClientEnabledFeatures();
         }
         /// <summary>
@@ -115,7 +115,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("compliancePolicy", CompliancePolicy);
             writer.WriteBoolValue("deviceConfiguration", DeviceConfiguration);
             writer.WriteBoolValue("inventory", Inventory);
diff --git a/src/Microsoft.Graph/Generated/Models/ConfigurationManagerCollectionAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/ConfigurationManagerCollectionAssignmentTarget.cs
index 9199522fdce..a9abf4fa3b7 100644
--- a/src/Microsoft.Graph/Generated/Models/ConfigurationManagerCollectionAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConfigurationManagerCollectionAssignmentTarget.cs
@@ -43,7 +43,7 @@ public ConfigurationManagerCollectionAssignmentTarget() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConfigurationManagerCollectionAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConfigurationManagerCollectionAssignmentTarget();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("collectionId", CollectionId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConnectedOrganization.cs b/src/Microsoft.Graph/Generated/Models/ConnectedOrganization.cs
index 3417758b752..6740c3e2539 100644
--- a/src/Microsoft.Graph/Generated/Models/ConnectedOrganization.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConnectedOrganization.cs
@@ -117,7 +117,7 @@ public DateTimeOffset? ModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConnectedOrganization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConnectedOrganization();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationCollectionResponse.cs
index 169f9e538bd..efd7039b266 100644
--- a/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ConnectedOrganizationCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConnectedOrganizationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConnectedOrganizationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConnectedOrganization>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationMembers.cs b/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationMembers.cs
index fb9cb68049d..df77895f4eb 100644
--- a/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationMembers.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConnectedOrganizationMembers.cs
@@ -58,7 +58,7 @@ public ConnectedOrganizationMembers() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConnectedOrganizationMembers CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConnectedOrganizationMembers();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("connectedOrganizationId", ConnectedOrganizationId);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/ConnectionInfo.cs b/src/Microsoft.Graph/Generated/Models/ConnectionInfo.cs
index eadf87acba0..57750ac38f8 100644
--- a/src/Microsoft.Graph/Generated/Models/ConnectionInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConnectionInfo.cs
@@ -68,7 +68,7 @@ public ConnectionInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConnectionInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConnectionInfo();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("url", Url);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Contact.cs b/src/Microsoft.Graph/Generated/Models/Contact.cs
index adb438d263b..8165f461d22 100644
--- a/src/Microsoft.Graph/Generated/Models/Contact.cs
+++ b/src/Microsoft.Graph/Generated/Models/Contact.cs
@@ -608,7 +608,7 @@ public Contact() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Contact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Contact();
         }
         /// <summary>
@@ -664,7 +664,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("assistantName", AssistantName);
             writer.WriteDateTimeOffsetValue("birthday", Birthday);
diff --git a/src/Microsoft.Graph/Generated/Models/ContactCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ContactCollectionResponse.cs
index 8cbb643b412..4e63557233e 100644
--- a/src/Microsoft.Graph/Generated/Models/ContactCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContactCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ContactCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContactCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContactCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ContactFolder.cs b/src/Microsoft.Graph/Generated/Models/ContactFolder.cs
index bf687f061b7..8f1aa6be9ae 100644
--- a/src/Microsoft.Graph/Generated/Models/ContactFolder.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContactFolder.cs
@@ -115,7 +115,7 @@ public string ParentFolderId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContactFolder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContactFolder();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContactFolder>("childFolders", ChildFolders);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("contacts", Contacts);
diff --git a/src/Microsoft.Graph/Generated/Models/ContactFolderCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ContactFolderCollectionResponse.cs
index f9bf07ca87d..ecabc8e2e70 100644
--- a/src/Microsoft.Graph/Generated/Models/ContactFolderCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContactFolderCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ContactFolderCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContactFolderCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContactFolderCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContactFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ContainerFilter.cs b/src/Microsoft.Graph/Generated/Models/ContainerFilter.cs
index 63cc49ad48b..c13b804c180 100644
--- a/src/Microsoft.Graph/Generated/Models/ContainerFilter.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContainerFilter.cs
@@ -68,7 +68,7 @@ public ContainerFilter()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ContainerFilter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContainerFilter();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("includedContainers", IncludedContainers);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ContentActivity.cs b/src/Microsoft.Graph/Generated/Models/ContentActivity.cs
index 15b60877dfc..7ccfc2f85e5 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentActivity.cs
@@ -67,7 +67,7 @@ public string UserId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContentActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentActivity();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ProcessContentRequest>("contentMetadata", ContentMetadata);
             writer.WriteStringValue("scopeIdentifier", ScopeIdentifier);
diff --git a/src/Microsoft.Graph/Generated/Models/ContentActivityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ContentActivityCollectionResponse.cs
index 082b24c9006..264c47b21ca 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentActivityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentActivityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ContentActivityCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContentActivityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentActivityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentActivity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ContentApprovalStatusColumn.cs b/src/Microsoft.Graph/Generated/Models/ContentApprovalStatusColumn.cs
index 58c9bc58898..044a36b3674 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentApprovalStatusColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentApprovalStatusColumn.cs
@@ -52,7 +52,7 @@ public ContentApprovalStatusColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ContentApprovalStatusColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentApprovalStatusColumn();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ContentBase.cs b/src/Microsoft.Graph/Generated/Models/ContentBase.cs
index 0e0398c04e3..75e18f6c7d8 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentBase.cs
@@ -52,7 +52,7 @@ public ContentBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ContentBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ContentCustomization.cs b/src/Microsoft.Graph/Generated/Models/ContentCustomization.cs
index 1623291d654..2c6719da929 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentCustomization.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentCustomization.cs
@@ -116,7 +116,7 @@ public ContentCustomization()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ContentCustomization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentCustomization();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.KeyValue>("attributeCollection", AttributeCollection);
             writer.WriteStringValue("attributeCollectionRelativeUrl", AttributeCollectionRelativeUrl);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ContentSharingSession.cs b/src/Microsoft.Graph/Generated/Models/ContentSharingSession.cs
index 60a8dbf5da8..2708b01d05a 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentSharingSession.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentSharingSession.cs
@@ -19,7 +19,7 @@ public partial class ContentSharingSession : global::Microsoft.Graph.Models.Enti
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContentSharingSession CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentSharingSession();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ContentSharingSessionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ContentSharingSessionCollectionResponse.cs
index 0eca8335eb4..9cc9418f749 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentSharingSessionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentSharingSessionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ContentSharingSessionCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContentSharingSessionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentSharingSessionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentSharingSession>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ContentType.cs b/src/Microsoft.Graph/Generated/Models/ContentType.cs
index 406aaf0be79..fb38cdc50e6 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentType.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentType.cs
@@ -273,7 +273,7 @@ public bool? Sealed
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContentType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentType();
         }
         /// <summary>
@@ -311,7 +311,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("associatedHubsUrls", AssociatedHubsUrls);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ContentType>("base", Base);
diff --git a/src/Microsoft.Graph/Generated/Models/ContentTypeCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ContentTypeCollectionResponse.cs
index aa5575ce2c6..6a9d12df7ab 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentTypeCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentTypeCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ContentTypeCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContentTypeCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentTypeCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ContentTypeInfo.cs b/src/Microsoft.Graph/Generated/Models/ContentTypeInfo.cs
index 4688929ef0a..c2fae54f609 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentTypeInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentTypeInfo.cs
@@ -84,7 +84,7 @@ public ContentTypeInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ContentTypeInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentTypeInfo();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ContentTypeOrder.cs b/src/Microsoft.Graph/Generated/Models/ContentTypeOrder.cs
index 184c626b7e7..22ad15646e9 100644
--- a/src/Microsoft.Graph/Generated/Models/ContentTypeOrder.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContentTypeOrder.cs
@@ -64,7 +64,7 @@ public ContentTypeOrder()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ContentTypeOrder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContentTypeOrder();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("default", Default);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("position", Position);
diff --git a/src/Microsoft.Graph/Generated/Models/Contract.cs b/src/Microsoft.Graph/Generated/Models/Contract.cs
index 8b3a84079a7..0787162980c 100644
--- a/src/Microsoft.Graph/Generated/Models/Contract.cs
+++ b/src/Microsoft.Graph/Generated/Models/Contract.cs
@@ -80,7 +80,7 @@ public Contract() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Contract CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Contract();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("contractType", ContractType);
             writer.WriteGuidValue("customerId", CustomerId);
diff --git a/src/Microsoft.Graph/Generated/Models/ContractCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ContractCollectionResponse.cs
index 8c0a4504b4c..9a74dae53d4 100644
--- a/src/Microsoft.Graph/Generated/Models/ContractCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ContractCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ContractCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ContractCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ContractCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contract>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ControlScore.cs b/src/Microsoft.Graph/Generated/Models/ControlScore.cs
index ef8d79cd7db..faca5062305 100644
--- a/src/Microsoft.Graph/Generated/Models/ControlScore.cs
+++ b/src/Microsoft.Graph/Generated/Models/ControlScore.cs
@@ -106,7 +106,7 @@ public ControlScore()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ControlScore CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ControlScore();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("controlCategory", ControlCategory);
             writer.WriteStringValue("controlName", ControlName);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/Conversation.cs b/src/Microsoft.Graph/Generated/Models/Conversation.cs
index f33951a0346..f66bb172e9d 100644
--- a/src/Microsoft.Graph/Generated/Models/Conversation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Conversation.cs
@@ -95,7 +95,7 @@ public List<string> UniqueSenders
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Conversation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Conversation();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("hasAttachments", HasAttachments);
             writer.WriteDateTimeOffsetValue("lastDeliveredDateTime", LastDeliveredDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ConversationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ConversationCollectionResponse.cs
index 0e353d3a657..bfc8be111b4 100644
--- a/src/Microsoft.Graph/Generated/Models/ConversationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConversationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ConversationCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConversationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConversationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Conversation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConversationMember.cs b/src/Microsoft.Graph/Generated/Models/ConversationMember.cs
index d49053fb60b..1c795ff1028 100644
--- a/src/Microsoft.Graph/Generated/Models/ConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConversationMember.cs
@@ -57,7 +57,7 @@ public DateTimeOffset? VisibleHistoryStartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -90,7 +90,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfPrimitiveValues<string>("roles", Roles);
diff --git a/src/Microsoft.Graph/Generated/Models/ConversationMemberCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ConversationMemberCollectionResponse.cs
index 3f2afda12ed..38403dbacb8 100644
--- a/src/Microsoft.Graph/Generated/Models/ConversationMemberCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConversationMemberCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ConversationMemberCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConversationMemberCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConversationMemberCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConversationMemberRoleUpdatedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/ConversationMemberRoleUpdatedEventMessageDetail.cs
index cd17636f062..2017114eff0 100644
--- a/src/Microsoft.Graph/Generated/Models/ConversationMemberRoleUpdatedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConversationMemberRoleUpdatedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public ConversationMemberRoleUpdatedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConversationMemberRoleUpdatedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConversationMemberRoleUpdatedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("conversationMemberRoles", ConversationMemberRoles);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("conversationMemberUser", ConversationMemberUser);
diff --git a/src/Microsoft.Graph/Generated/Models/ConversationThread.cs b/src/Microsoft.Graph/Generated/Models/ConversationThread.cs
index 338a76a786b..ab6ecf13360 100644
--- a/src/Microsoft.Graph/Generated/Models/ConversationThread.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConversationThread.cs
@@ -133,7 +133,7 @@ public List<string> UniqueSenders
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConversationThread CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConversationThread();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ccRecipients", CcRecipients);
             writer.WriteBoolValue("hasAttachments", HasAttachments);
diff --git a/src/Microsoft.Graph/Generated/Models/ConversationThreadCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ConversationThreadCollectionResponse.cs
index cd42ddd992a..48ddb5b74d8 100644
--- a/src/Microsoft.Graph/Generated/Models/ConversationThreadCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConversationThreadCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ConversationThreadCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ConversationThreadCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConversationThreadCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationThread>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ConvertIdResult.cs b/src/Microsoft.Graph/Generated/Models/ConvertIdResult.cs
index ccb67a6ea09..9b8c217e726 100644
--- a/src/Microsoft.Graph/Generated/Models/ConvertIdResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/ConvertIdResult.cs
@@ -100,7 +100,7 @@ public ConvertIdResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ConvertIdResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ConvertIdResult();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.GenericError>("errorDetails", ErrorDetails);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("sourceId", SourceId);
diff --git a/src/Microsoft.Graph/Generated/Models/CopilotAdmin.cs b/src/Microsoft.Graph/Generated/Models/CopilotAdmin.cs
index 0b2894cff61..79cac53259b 100644
--- a/src/Microsoft.Graph/Generated/Models/CopilotAdmin.cs
+++ b/src/Microsoft.Graph/Generated/Models/CopilotAdmin.cs
@@ -35,7 +35,7 @@ public partial class CopilotAdmin : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CopilotAdmin CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CopilotAdmin();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CopilotAdminSetting>("settings", Settings);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CopilotAdminLimitedMode.cs b/src/Microsoft.Graph/Generated/Models/CopilotAdminLimitedMode.cs
index f93f3ef3f80..e2045c5046c 100644
--- a/src/Microsoft.Graph/Generated/Models/CopilotAdminLimitedMode.cs
+++ b/src/Microsoft.Graph/Generated/Models/CopilotAdminLimitedMode.cs
@@ -41,7 +41,7 @@ public bool? IsEnabledForGroup
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CopilotAdminLimitedMode CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CopilotAdminLimitedMode();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteBoolValue("isEnabledForGroup", IsEnabledForGroup);
diff --git a/src/Microsoft.Graph/Generated/Models/CopilotAdminSetting.cs b/src/Microsoft.Graph/Generated/Models/CopilotAdminSetting.cs
index f8addec732e..5eef83e5701 100644
--- a/src/Microsoft.Graph/Generated/Models/CopilotAdminSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/CopilotAdminSetting.cs
@@ -35,7 +35,7 @@ public partial class CopilotAdminSetting : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CopilotAdminSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CopilotAdminSetting();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CopilotAdminLimitedMode>("limitedMode", LimitedMode);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CopyNotebookModel.cs b/src/Microsoft.Graph/Generated/Models/CopyNotebookModel.cs
index 509adff94e6..4118336dcb5 100644
--- a/src/Microsoft.Graph/Generated/Models/CopyNotebookModel.cs
+++ b/src/Microsoft.Graph/Generated/Models/CopyNotebookModel.cs
@@ -242,7 +242,7 @@ public CopyNotebookModel()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CopyNotebookModel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CopyNotebookModel();
         }
         /// <summary>
@@ -277,7 +277,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("createdBy", CreatedBy);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdByIdentity", CreatedByIdentity);
             writer.WriteDateTimeOffsetValue("createdTime", CreatedTime);
diff --git a/src/Microsoft.Graph/Generated/Models/CountryNamedLocation.cs b/src/Microsoft.Graph/Generated/Models/CountryNamedLocation.cs
index e06f21ca84c..aad765c612c 100644
--- a/src/Microsoft.Graph/Generated/Models/CountryNamedLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/CountryNamedLocation.cs
@@ -47,7 +47,7 @@ public bool? IncludeUnknownCountriesAndRegions
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CountryNamedLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CountryNamedLocation();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("countriesAndRegions", CountriesAndRegions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CountryLookupMethodType>("countryLookupMethod", CountryLookupMethod);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossCloudAzureActiveDirectoryTenant.cs b/src/Microsoft.Graph/Generated/Models/CrossCloudAzureActiveDirectoryTenant.cs
index ed90c127ef3..a0e64366191 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossCloudAzureActiveDirectoryTenant.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossCloudAzureActiveDirectoryTenant.cs
@@ -74,7 +74,7 @@ public CrossCloudAzureActiveDirectoryTenant() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CrossCloudAzureActiveDirectoryTenant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossCloudAzureActiveDirectoryTenant();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("cloudInstance", CloudInstance);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicy.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicy.cs
index fe5197090be..b3ac0d750ee 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicy.cs
@@ -90,7 +90,7 @@ public CrossTenantAccessPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CrossTenantAccessPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicy();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("allowedCloudEndpoints", AllowedCloudEndpoints);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationDefault>("default", Default);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyB2BSetting.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyB2BSetting.cs
index c6c938cc9b3..bdba0308856 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyB2BSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyB2BSetting.cs
@@ -84,7 +84,7 @@ public CrossTenantAccessPolicyB2BSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CrossTenantAccessPolicyB2BSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -111,7 +111,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyTargetConfiguration>("applications", Applications);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyTargetConfiguration>("usersAndGroups", UsersAndGroups);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationDefault.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationDefault.cs
index d96989cda59..4f4c211f1f9 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationDefault.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationDefault.cs
@@ -153,7 +153,7 @@ public bool? IsServiceDefault
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationDefault CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationDefault();
         }
         /// <summary>
@@ -181,7 +181,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.InboundOutboundPolicyConfiguration>("automaticUserConsentSettings", AutomaticUserConsentSettings);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyB2BSetting>("b2bCollaborationInbound", B2bCollaborationInbound);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartner.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartner.cs
index 2f92d8bfb7d..ac4b8b1b020 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartner.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartner.cs
@@ -208,7 +208,7 @@ public CrossTenantAccessPolicyConfigurationPartner()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner();
         }
         /// <summary>
@@ -239,7 +239,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.InboundOutboundPolicyConfiguration>("automaticUserConsentSettings", AutomaticUserConsentSettings);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyB2BSetting>("b2bCollaborationInbound", B2bCollaborationInbound);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyB2BSetting>("b2bCollaborationOutbound", B2bCollaborationOutbound);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartnerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartnerCollectionResponse.cs
index c3a45c1c4f2..49e0500133b 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartnerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyConfigurationPartnerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CrossTenantAccessPolicyConfigurationPartnerCollectionRespon
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartnerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartnerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyInboundTrust.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyInboundTrust.cs
index 0749036b96e..3a615ba78b7 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyInboundTrust.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyInboundTrust.cs
@@ -70,7 +70,7 @@ public CrossTenantAccessPolicyInboundTrust()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CrossTenantAccessPolicyInboundTrust CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicyInboundTrust();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isCompliantDeviceAccepted", IsCompliantDeviceAccepted);
             writer.WriteBoolValue("isHybridAzureADJoinedDeviceAccepted", IsHybridAzureADJoinedDeviceAccepted);
             writer.WriteBoolValue("isMfaAccepted", IsMfaAccepted);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTarget.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTarget.cs
index 5da840e6652..2a79aa521f9 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTarget.cs
@@ -74,7 +74,7 @@ public CrossTenantAccessPolicyTarget()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CrossTenantAccessPolicyTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicyTarget();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("target", Target);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyTargetType>("targetType", TargetType);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTargetConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTargetConfiguration.cs
index ef9772c3ec7..a55dd0ac521 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTargetConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTargetConfiguration.cs
@@ -74,7 +74,7 @@ public CrossTenantAccessPolicyTargetConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CrossTenantAccessPolicyTargetConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicyTargetConfiguration();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyTargetConfigurationAccessType>("accessType", AccessType);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CrossTenantAccessPolicyTarget>("targets", Targets);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTenantRestrictions.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTenantRestrictions.cs
index f3f6fef41fa..4f95d764bad 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTenantRestrictions.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantAccessPolicyTenantRestrictions.cs
@@ -42,7 +42,7 @@ public CrossTenantAccessPolicyTenantRestrictions() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CrossTenantAccessPolicyTenantRestrictions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantAccessPolicyTenantRestrictions();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DevicesFilter>("devices", Devices);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantIdentitySyncPolicyPartner.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantIdentitySyncPolicyPartner.cs
index 7a652f9c2ba..9f41bb4e8fc 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantIdentitySyncPolicyPartner.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantIdentitySyncPolicyPartner.cs
@@ -100,7 +100,7 @@ public CrossTenantIdentitySyncPolicyPartner()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CrossTenantIdentitySyncPolicyPartner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantIdentitySyncPolicyPartner();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("tenantId", TenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/CrossTenantUserSyncInbound.cs b/src/Microsoft.Graph/Generated/Models/CrossTenantUserSyncInbound.cs
index 4558186c2d0..b3e9b305abc 100644
--- a/src/Microsoft.Graph/Generated/Models/CrossTenantUserSyncInbound.cs
+++ b/src/Microsoft.Graph/Generated/Models/CrossTenantUserSyncInbound.cs
@@ -58,7 +58,7 @@ public CrossTenantUserSyncInbound()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CrossTenantUserSyncInbound CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CrossTenantUserSyncInbound();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncAllowed", IsSyncAllowed);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CurrencyColumn.cs b/src/Microsoft.Graph/Generated/Models/CurrencyColumn.cs
index cfc6b231500..b6f72a35ffb 100644
--- a/src/Microsoft.Graph/Generated/Models/CurrencyColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/CurrencyColumn.cs
@@ -68,7 +68,7 @@ public CurrencyColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CurrencyColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CurrencyColumn();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("locale", Locale);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomAppManagementConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CustomAppManagementConfiguration.cs
index 8688efcfdb1..e3405d15635 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomAppManagementConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomAppManagementConfiguration.cs
@@ -26,7 +26,7 @@ public CustomAppManagementConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomAppManagementConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomAppManagementConfiguration();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtension.cs b/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtension.cs
index 40ce28eeafa..7061159fe71 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtension.cs
@@ -42,7 +42,7 @@ public CustomAuthenticationExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomAuthenticationExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionBehaviorOnError>("behaviorOnError", BehaviorOnError);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtensionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtensionCollectionResponse.cs
index 7468532ec04..fb0d0ba2c95 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtensionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomAuthenticationExtensionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CustomAuthenticationExtensionCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomAuthenticationExtensionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomAuthenticationExtensionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CustomAuthenticationExtension>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomCalloutExtension.cs b/src/Microsoft.Graph/Generated/Models/CustomCalloutExtension.cs
index 346d73c585f..45e26c18155 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomCalloutExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomCalloutExtension.cs
@@ -100,7 +100,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomCalloutExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -136,7 +136,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionAuthenticationConfiguration>("authenticationConfiguration", AuthenticationConfiguration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionClientConfiguration>("clientConfiguration", ClientConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomCalloutExtensionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CustomCalloutExtensionCollectionResponse.cs
index a3abe25bf3a..2c46924571e 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomCalloutExtensionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomCalloutExtensionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CustomCalloutExtensionCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomCalloutExtensionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomCalloutExtensionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CustomCalloutExtension>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionAuthenticationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionAuthenticationConfiguration.cs
index 9e13439175b..ebf805378bc 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionAuthenticationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionAuthenticationConfiguration.cs
@@ -52,7 +52,7 @@ public CustomExtensionAuthenticationConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionAuthenticationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionBehaviorOnError.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionBehaviorOnError.cs
index fedb6171eb8..f5f6117387a 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionBehaviorOnError.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionBehaviorOnError.cs
@@ -52,7 +52,7 @@ public CustomExtensionBehaviorOnError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionBehaviorOnError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionCallbackConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionCallbackConfiguration.cs
index 3ebfdb22bf8..d56fb42d34d 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionCallbackConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionCallbackConfiguration.cs
@@ -59,7 +59,7 @@ public CustomExtensionCallbackConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionCallbackConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -85,7 +85,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteTimeSpanValue("timeoutDuration", TimeoutDuration);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionCalloutInstance.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionCalloutInstance.cs
index 2bc291e4da5..8ffbfb6f1f1 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionCalloutInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionCalloutInstance.cs
@@ -122,7 +122,7 @@ public CustomExtensionCalloutInstance()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionCalloutInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomExtensionCalloutInstance();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("customExtensionId", CustomExtensionId);
             writer.WriteStringValue("detail", Detail);
             writer.WriteStringValue("externalCorrelationId", ExternalCorrelationId);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionClientConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionClientConfiguration.cs
index d9a20508361..5c2c8db2d3b 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionClientConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionClientConfiguration.cs
@@ -64,7 +64,7 @@ public CustomExtensionClientConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionClientConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomExtensionClientConfiguration();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("maximumRetries", MaximumRetries);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("timeoutInMilliseconds", TimeoutInMilliseconds);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionData.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionData.cs
index c0dad6c595a..7971fbdf56e 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionData.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionData.cs
@@ -53,7 +53,7 @@ public CustomExtensionData()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionEndpointConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionEndpointConfiguration.cs
index 9f1c6951f96..4870549ea2e 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionEndpointConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionEndpointConfiguration.cs
@@ -52,7 +52,7 @@ public CustomExtensionEndpointConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionEndpointConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionOverwriteConfiguration.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionOverwriteConfiguration.cs
index 3135ab3706f..3ce71986dc1 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionOverwriteConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionOverwriteConfiguration.cs
@@ -84,7 +84,7 @@ public CustomExtensionOverwriteConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomExtensionOverwriteConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomExtensionOverwriteConfiguration();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionBehaviorOnError>("behaviorOnError", BehaviorOnError);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionClientConfiguration>("clientConfiguration", ClientConfiguration);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSetting.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSetting.cs
index c66508c34f3..14d6d5fbdd9 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSetting.cs
@@ -41,7 +41,7 @@ public partial class CustomExtensionStageSetting : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomExtensionStageSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomExtensionStageSetting();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomCalloutExtension>("customExtension", CustomExtension);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AccessPackageCustomExtensionStage>("stage", Stage);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSettingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSettingCollectionResponse.cs
index 9d832c7215c..02a7b7edd84 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSettingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomExtensionStageSettingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CustomExtensionStageSettingCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomExtensionStageSettingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomExtensionStageSettingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CustomExtensionStageSetting>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomMetadataDictionary.cs b/src/Microsoft.Graph/Generated/Models/CustomMetadataDictionary.cs
index 1bac30c3943..66b57fb4405 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomMetadataDictionary.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomMetadataDictionary.cs
@@ -19,7 +19,7 @@ public partial class CustomMetadataDictionary : global::Microsoft.Graph.Models.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomMetadataDictionary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomMetadataDictionary();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinition.cs b/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinition.cs
index e950b851971..068e23ec0d9 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinition.cs
@@ -133,7 +133,7 @@ public bool? UsePreDefinedValuesOnly
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AllowedValue>("allowedValues", AllowedValues);
             writer.WriteStringValue("attributeSet", AttributeSet);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinitionCollectionResponse.cs
index 534d01d365e..a22dfec3e3d 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CustomSecurityAttributeDefinitionCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomSecurityAttributeDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomSecurityAttributeDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CustomSecurityAttributeDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeValue.cs b/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeValue.cs
index 613fbc27513..9d8f710a4fc 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeValue.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomSecurityAttributeValue.cs
@@ -52,7 +52,7 @@ public CustomSecurityAttributeValue()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.CustomSecurityAttributeValue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomSecurityAttributeValue();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/CustomTimeZone.cs b/src/Microsoft.Graph/Generated/Models/CustomTimeZone.cs
index 9148501dbab..34669bfcffd 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomTimeZone.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomTimeZone.cs
@@ -64,7 +64,7 @@ public CustomTimeZone() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomTimeZone CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomTimeZone();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("bias", Bias);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DaylightTimeZoneOffset>("daylightOffset", DaylightOffset);
diff --git a/src/Microsoft.Graph/Generated/Models/CustomTrainingSetting.cs b/src/Microsoft.Graph/Generated/Models/CustomTrainingSetting.cs
index 0f5049d141f..81f75f9f0a6 100644
--- a/src/Microsoft.Graph/Generated/Models/CustomTrainingSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/CustomTrainingSetting.cs
@@ -96,7 +96,7 @@ public CustomTrainingSetting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.CustomTrainingSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.CustomTrainingSetting();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.TrainingAssignedTo>("assignedTo", AssignedTo);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/DataPolicyOperation.cs b/src/Microsoft.Graph/Generated/Models/DataPolicyOperation.cs
index 4ed7ced087e..53059703bac 100644
--- a/src/Microsoft.Graph/Generated/Models/DataPolicyOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/DataPolicyOperation.cs
@@ -75,7 +75,7 @@ public string UserId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DataPolicyOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DataPolicyOperation();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteDoubleValue("progress", Progress);
diff --git a/src/Microsoft.Graph/Generated/Models/DataPolicyOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DataPolicyOperationCollectionResponse.cs
index 03d9cdf84f9..1fbb254d5ba 100644
--- a/src/Microsoft.Graph/Generated/Models/DataPolicyOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DataPolicyOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DataPolicyOperationCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DataPolicyOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DataPolicyOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DataPolicyOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DataSecurityAndGovernance.cs b/src/Microsoft.Graph/Generated/Models/DataSecurityAndGovernance.cs
index 1012e4ca57d..052654a6bc7 100644
--- a/src/Microsoft.Graph/Generated/Models/DataSecurityAndGovernance.cs
+++ b/src/Microsoft.Graph/Generated/Models/DataSecurityAndGovernance.cs
@@ -35,7 +35,7 @@ public partial class DataSecurityAndGovernance : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DataSecurityAndGovernance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -61,7 +61,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SensitivityLabel>("sensitivityLabels", SensitivityLabels);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DataSubject.cs b/src/Microsoft.Graph/Generated/Models/DataSubject.cs
index 79fdd07651d..415529cb205 100644
--- a/src/Microsoft.Graph/Generated/Models/DataSubject.cs
+++ b/src/Microsoft.Graph/Generated/Models/DataSubject.cs
@@ -116,7 +116,7 @@ public DataSubject()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DataSubject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DataSubject();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("email", Email);
             writer.WriteStringValue("firstName", FirstName);
             writer.WriteStringValue("lastName", LastName);
diff --git a/src/Microsoft.Graph/Generated/Models/DateTimeColumn.cs b/src/Microsoft.Graph/Generated/Models/DateTimeColumn.cs
index 7dbddca28dc..7392b345459 100644
--- a/src/Microsoft.Graph/Generated/Models/DateTimeColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/DateTimeColumn.cs
@@ -84,7 +84,7 @@ public DateTimeColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DateTimeColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DateTimeColumn();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayAs", DisplayAs);
             writer.WriteStringValue("format", Format);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DateTimeTimeZone.cs b/src/Microsoft.Graph/Generated/Models/DateTimeTimeZone.cs
index 89998af574d..9979d2e2e28 100644
--- a/src/Microsoft.Graph/Generated/Models/DateTimeTimeZone.cs
+++ b/src/Microsoft.Graph/Generated/Models/DateTimeTimeZone.cs
@@ -84,7 +84,7 @@ public DateTimeTimeZone()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DateTimeTimeZone CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DateTimeTimeZone();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("dateTime", DateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("timeZone", TimeZone);
diff --git a/src/Microsoft.Graph/Generated/Models/DayNote.cs b/src/Microsoft.Graph/Generated/Models/DayNote.cs
index d1f8046b2fe..8a6ceb24723 100644
--- a/src/Microsoft.Graph/Generated/Models/DayNote.cs
+++ b/src/Microsoft.Graph/Generated/Models/DayNote.cs
@@ -65,7 +65,7 @@ public DayNote() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DayNote CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DayNote();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateValue("dayNoteDate", DayNoteDate);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("draftDayNote", DraftDayNote);
diff --git a/src/Microsoft.Graph/Generated/Models/DayNoteCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DayNoteCollectionResponse.cs
index cc2b148f3b0..60f0441c799 100644
--- a/src/Microsoft.Graph/Generated/Models/DayNoteCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DayNoteCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DayNoteCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DayNoteCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DayNoteCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DayNote>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DaylightTimeZoneOffset.cs b/src/Microsoft.Graph/Generated/Models/DaylightTimeZoneOffset.cs
index 2aa65433b27..f5f568937b6 100644
--- a/src/Microsoft.Graph/Generated/Models/DaylightTimeZoneOffset.cs
+++ b/src/Microsoft.Graph/Generated/Models/DaylightTimeZoneOffset.cs
@@ -32,7 +32,7 @@ public DaylightTimeZoneOffset() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DaylightTimeZoneOffset CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DaylightTimeZoneOffset();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("daylightBias", DaylightBias);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DefaultColumnValue.cs b/src/Microsoft.Graph/Generated/Models/DefaultColumnValue.cs
index 6dbdb15d540..02296048fdf 100644
--- a/src/Microsoft.Graph/Generated/Models/DefaultColumnValue.cs
+++ b/src/Microsoft.Graph/Generated/Models/DefaultColumnValue.cs
@@ -84,7 +84,7 @@ public DefaultColumnValue()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DefaultColumnValue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DefaultColumnValue();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("formula", Formula);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/DefaultInvitationRedemptionIdentityProviderConfiguration.cs b/src/Microsoft.Graph/Generated/Models/DefaultInvitationRedemptionIdentityProviderConfiguration.cs
index 6f861692550..189e11b50d2 100644
--- a/src/Microsoft.Graph/Generated/Models/DefaultInvitationRedemptionIdentityProviderConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/DefaultInvitationRedemptionIdentityProviderConfiguration.cs
@@ -19,7 +19,7 @@ public partial class DefaultInvitationRedemptionIdentityProviderConfiguration :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DefaultInvitationRedemptionIdentityProviderConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DefaultInvitationRedemptionIdentityProviderConfiguration();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtection.cs b/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtection.cs
index bd0a75c9e73..03c333c59d2 100644
--- a/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtection.cs
@@ -159,7 +159,7 @@ public DefaultManagedAppProtection() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DefaultManagedAppProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DefaultManagedAppProtection();
         }
         /// <summary>
@@ -190,7 +190,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ManagedAppDataEncryptionType>("appDataEncryptionType", AppDataEncryptionType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
diff --git a/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtectionCollectionResponse.cs
index 45e79108df3..ac879f243ce 100644
--- a/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DefaultManagedAppProtectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DefaultManagedAppProtectionCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DefaultManagedAppProtectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DefaultManagedAppProtectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DefaultManagedAppProtection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DefaultUserRolePermissions.cs b/src/Microsoft.Graph/Generated/Models/DefaultUserRolePermissions.cs
index ff68d8cb458..185532c7816 100644
--- a/src/Microsoft.Graph/Generated/Models/DefaultUserRolePermissions.cs
+++ b/src/Microsoft.Graph/Generated/Models/DefaultUserRolePermissions.cs
@@ -98,7 +98,7 @@ public DefaultUserRolePermissions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DefaultUserRolePermissions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DefaultUserRolePermissions();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowedToCreateApps", AllowedToCreateApps);
             writer.WriteBoolValue("allowedToCreateSecurityGroups", AllowedToCreateSecurityGroups);
             writer.WriteBoolValue("allowedToCreateTenants", AllowedToCreateTenants);
diff --git a/src/Microsoft.Graph/Generated/Models/DefenderDetectedMalwareActions.cs b/src/Microsoft.Graph/Generated/Models/DefenderDetectedMalwareActions.cs
index ed26fea1911..11909121768 100644
--- a/src/Microsoft.Graph/Generated/Models/DefenderDetectedMalwareActions.cs
+++ b/src/Microsoft.Graph/Generated/Models/DefenderDetectedMalwareActions.cs
@@ -77,7 +77,7 @@ public DefenderDetectedMalwareActions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DefenderDetectedMalwareActions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DefenderDetectedMalwareActions();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DefenderThreatAction>("highSeverity", HighSeverity);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DefenderThreatAction>("lowSeverity", LowSeverity);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DefenderThreatAction>("moderateSeverity", ModerateSeverity);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignment.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignment.cs
index ba83e4437c5..1f9893f0638 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignment.cs
@@ -69,7 +69,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DelegatedAdminAccessContainer>("accessContainer", AccessContainer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DelegatedAdminAccessDetails>("accessDetails", AccessDetails);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignmentCollectionResponse.cs
index 6c698ed85c2..5ebe79a013b 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DelegatedAdminAccessAssignmentCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminAccessAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminAccessAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessContainer.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessContainer.cs
index 04dcfbca417..c60645f1022 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessContainer.cs
@@ -74,7 +74,7 @@ public DelegatedAdminAccessContainer()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DelegatedAdminAccessContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminAccessContainer();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("accessContainerId", AccessContainerId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DelegatedAdminAccessContainerType>("accessContainerType", AccessContainerType);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessDetails.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessDetails.cs
index eea7600766c..99ac9bc7bd5 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminAccessDetails.cs
@@ -68,7 +68,7 @@ public DelegatedAdminAccessDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DelegatedAdminAccessDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminAccessDetails();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRole>("unifiedRoles", UnifiedRoles);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomer.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomer.cs
index 2eaeb8b2039..17e56bb0664 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomer.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomer.cs
@@ -67,7 +67,7 @@ public string TenantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminCustomer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminCustomer();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail>("serviceManagementDetails", ServiceManagementDetails);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomerCollectionResponse.cs
index d8bef81a095..1676b3761b7 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminCustomerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DelegatedAdminCustomerCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminCustomerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminCustomerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminCustomer>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationship.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationship.cs
index 10c69e769b8..961b9de5c03 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationship.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationship.cs
@@ -157,7 +157,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminRelationship CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -194,7 +194,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment>("accessAssignments", AccessAssignments);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DelegatedAdminAccessDetails>("accessDetails", AccessDetails);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCollectionResponse.cs
index b749160e884..2b2e3ff8930 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DelegatedAdminRelationshipCollectionResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminRelationshipCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminRelationshipCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminRelationship>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCustomerParticipant.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCustomerParticipant.cs
index 5aba4e8edbd..794b5b58006 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCustomerParticipant.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipCustomerParticipant.cs
@@ -84,7 +84,7 @@ public DelegatedAdminRelationshipCustomerParticipant()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DelegatedAdminRelationshipCustomerParticipant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminRelationshipCustomerParticipant();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("tenantId", TenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperation.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperation.cs
index 98ccdf3fa93..47b62119826 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperation.cs
@@ -59,7 +59,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation();
         }
         /// <summary>
@@ -83,7 +83,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("data", Data);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperationCollectionResponse.cs
index f6a7abe814c..a12849f5b8f 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DelegatedAdminRelationshipOperationCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequest.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequest.cs
index d30e5f49ecc..1a1de06f39b 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequest.cs
@@ -43,7 +43,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest();
         }
         /// <summary>
@@ -66,7 +66,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequestAction>("action", Action);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequestCollectionResponse.cs
index 0ba8b60cd9d..521230ffe18 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminRelationshipRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DelegatedAdminRelationshipRequestCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetail.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetail.cs
index 8297a5089a3..442ead405ef 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetail.cs
@@ -51,7 +51,7 @@ public string ServiceName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("serviceManagementUrl", ServiceManagementUrl);
             writer.WriteStringValue("serviceName", ServiceName);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetailCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetailCollectionResponse.cs
index d0ae159d0e8..b6e853da70c 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetailCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedAdminServiceManagementDetailCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DelegatedAdminServiceManagementDetailCollectionResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetailCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetailCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassification.cs b/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassification.cs
index 4c8a52facd8..7da347a636f 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassification.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassification.cs
@@ -57,7 +57,7 @@ public string PermissionName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedPermissionClassification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedPermissionClassification();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PermissionClassificationType>("classification", Classification);
             writer.WriteStringValue("permissionId", PermissionId);
diff --git a/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassificationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassificationCollectionResponse.cs
index 7c9fc5a4726..df0b6f8f69b 100644
--- a/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassificationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DelegatedPermissionClassificationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DelegatedPermissionClassificationCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DelegatedPermissionClassificationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DelegatedPermissionClassificationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedPermissionClassification>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeleteUserFromSharedAppleDeviceActionResult.cs b/src/Microsoft.Graph/Generated/Models/DeleteUserFromSharedAppleDeviceActionResult.cs
index 18c25093dfe..be4391a7811 100644
--- a/src/Microsoft.Graph/Generated/Models/DeleteUserFromSharedAppleDeviceActionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeleteUserFromSharedAppleDeviceActionResult.cs
@@ -36,7 +36,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeleteUserFromSharedAppleDeviceActionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeleteUserFromSharedAppleDeviceActionResult();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Deleted.cs b/src/Microsoft.Graph/Generated/Models/Deleted.cs
index a6a1a285b7e..de56be61fe6 100644
--- a/src/Microsoft.Graph/Generated/Models/Deleted.cs
+++ b/src/Microsoft.Graph/Generated/Models/Deleted.cs
@@ -68,7 +68,7 @@ public Deleted()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Deleted CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Deleted();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("state", State);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/DeletedChat.cs b/src/Microsoft.Graph/Generated/Models/DeletedChat.cs
index 272d9a2bf47..778ac690e41 100644
--- a/src/Microsoft.Graph/Generated/Models/DeletedChat.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeletedChat.cs
@@ -19,7 +19,7 @@ public partial class DeletedChat : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeletedChat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeletedChat();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/DeletedChatCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeletedChatCollectionResponse.cs
index fceeccdee33..ef402979e76 100644
--- a/src/Microsoft.Graph/Generated/Models/DeletedChatCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeletedChatCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeletedChatCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeletedChatCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeletedChatCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeletedChat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeletedItemContainer.cs b/src/Microsoft.Graph/Generated/Models/DeletedItemContainer.cs
index a33b1f5c0ad..fec1dc5192a 100644
--- a/src/Microsoft.Graph/Generated/Models/DeletedItemContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeletedItemContainer.cs
@@ -36,7 +36,7 @@ public partial class DeletedItemContainer : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeletedItemContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeletedItemContainer();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.Workflow>("workflows", Workflows);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeletedTeam.cs b/src/Microsoft.Graph/Generated/Models/DeletedTeam.cs
index d48c0f6f818..f3511c201f9 100644
--- a/src/Microsoft.Graph/Generated/Models/DeletedTeam.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeletedTeam.cs
@@ -35,7 +35,7 @@ public partial class DeletedTeam : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeletedTeam CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeletedTeam();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Channel>("channels", Channels);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeletedTeamCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeletedTeamCollectionResponse.cs
index f5f88326e33..1e5a04f277f 100644
--- a/src/Microsoft.Graph/Generated/Models/DeletedTeamCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeletedTeamCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeletedTeamCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeletedTeamCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeletedTeamCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeletedTeam>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeltaParticipants.cs b/src/Microsoft.Graph/Generated/Models/DeltaParticipants.cs
index cd60c7d89e7..b390e5fe277 100644
--- a/src/Microsoft.Graph/Generated/Models/DeltaParticipants.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeltaParticipants.cs
@@ -41,7 +41,7 @@ public long? SequenceNumber
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeltaParticipants CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeltaParticipants();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Participant>("participants", Participants);
             writer.WriteLongValue("sequenceNumber", SequenceNumber);
diff --git a/src/Microsoft.Graph/Generated/Models/DetailsInfo.cs b/src/Microsoft.Graph/Generated/Models/DetailsInfo.cs
index c58d92881b4..4b89093080d 100644
--- a/src/Microsoft.Graph/Generated/Models/DetailsInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/DetailsInfo.cs
@@ -52,7 +52,7 @@ public DetailsInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DetailsInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DetailsInfo();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DetectedApp.cs b/src/Microsoft.Graph/Generated/Models/DetectedApp.cs
index 649ae4b543a..506370643d9 100644
--- a/src/Microsoft.Graph/Generated/Models/DetectedApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/DetectedApp.cs
@@ -102,7 +102,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DetectedApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DetectedApp();
         }
         /// <summary>
@@ -128,7 +128,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("deviceCount", DeviceCount);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DetectedAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DetectedAppCollectionResponse.cs
index 5f7e0307f9d..e24f103bf80 100644
--- a/src/Microsoft.Graph/Generated/Models/DetectedAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DetectedAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DetectedAppCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DetectedAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DetectedAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DetectedApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Device.cs b/src/Microsoft.Graph/Generated/Models/Device.cs
index f36a9409019..944e829a932 100644
--- a/src/Microsoft.Graph/Generated/Models/Device.cs
+++ b/src/Microsoft.Graph/Generated/Models/Device.cs
@@ -476,7 +476,7 @@ public Device() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Device CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Device();
         }
         /// <summary>
@@ -530,7 +530,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("accountEnabled", AccountEnabled);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AlternativeSecurityId>("alternativeSecurityIds", AlternativeSecurityIds);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceActionResult.cs b/src/Microsoft.Graph/Generated/Models/DeviceActionResult.cs
index bda741827bf..e6064b867a3 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceActionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceActionResult.cs
@@ -87,7 +87,7 @@ public DeviceActionResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceActionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("actionName", ActionName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ActionState>("actionState", ActionState);
             writer.WriteDateTimeOffsetValue("lastUpdatedDateTime", LastUpdatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementAssignmentTarget.cs
index e1db4332f07..7ad49dad4f9 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementAssignmentTarget.cs
@@ -53,7 +53,7 @@ public DeviceAndAppManagementAssignmentTarget()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -82,7 +82,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementData.cs b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementData.cs
index 1b78f306c9f..967919fddbb 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementData.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementData.cs
@@ -69,7 +69,7 @@ public DeviceAndAppManagementData()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceAndAppManagementData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceAndAppManagementData();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("content", Content);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignment.cs b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignment.cs
index 03377029a0e..2662eeb5c88 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignment.cs
@@ -36,7 +36,7 @@ public List<string> Members
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("members", Members);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignmentCollectionResponse.cs
index 1391d2bd35d..806be279a6b 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceAndAppManagementRoleAssignmentCollectionResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceAndAppManagementRoleAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleDefinition.cs b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleDefinition.cs
index 728d6e39254..5cc09aaa8bb 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceAndAppManagementRoleDefinition.cs
@@ -27,7 +27,7 @@ public DeviceAndAppManagementRoleDefinition() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceAndAppManagementRoleDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceAndAppManagementRoleDefinition();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceAppManagement.cs b/src/Microsoft.Graph/Generated/Models/DeviceAppManagement.cs
index dde6f9f9434..93d23ec2878 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceAppManagement.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceAppManagement.cs
@@ -294,7 +294,7 @@ public DateTimeOffset? MicrosoftStoreForBusinessLastSuccessfulSyncDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceAppManagement CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceAppManagement();
         }
         /// <summary>
@@ -332,7 +332,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AndroidManagedAppProtection>("androidManagedAppProtections", AndroidManagedAppProtections);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DefaultManagedAppProtection>("defaultManagedAppProtections", DefaultManagedAppProtections);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCategory.cs b/src/Microsoft.Graph/Generated/Models/DeviceCategory.cs
index 0709180aeec..775fbebbc94 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCategory.cs
@@ -52,7 +52,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCategory();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCategoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceCategoryCollectionResponse.cs
index 99b0416f3a0..00a80424960 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCategoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCategoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceCategoryCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCategoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCategoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceCollectionResponse.cs
index acb7244be95..9894d6cb37a 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceCollectionResponse : global::Microsoft.Graph.Models.B
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Device>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItem.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItem.cs
index ab2b4fc1466..6f0858d5dc1 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItem.cs
@@ -64,7 +64,7 @@ public string NotificationTemplateId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceActionItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceActionItem();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DeviceComplianceActionType>("actionType", ActionType);
             writer.WriteIntValue("gracePeriodHours", GracePeriodHours);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItemCollectionResponse.cs
index b1012f37bba..6fb2ad541c4 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceActionItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceComplianceActionItemCollectionResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceActionItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceActionItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceComplianceActionItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceOverview.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceOverview.cs
index bd8b0f8e4c7..aa4b7b0383e 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceOverview.cs
@@ -61,7 +61,7 @@ public int? SuccessCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceDeviceOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceDeviceOverview();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("configurationVersion", ConfigurationVersion);
             writer.WriteIntValue("errorCount", ErrorCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatus.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatus.cs
index 39d7adc5097..8a437dabd03 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatus.cs
@@ -101,7 +101,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("complianceGracePeriodExpirationDateTime", ComplianceGracePeriodExpirationDateTime);
             writer.WriteStringValue("deviceDisplayName", DeviceDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatusCollectionResponse.cs
index 99fd59c3704..2f1ff7d10fc 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceDeviceStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceComplianceDeviceStatusCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceDeviceStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceDeviceStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceComplianceDeviceStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicy.cs
index a25c02401ed..129176af34d 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicy.cs
@@ -182,7 +182,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -225,7 +225,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment>("assignments", Assignments);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignment.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignment.cs
index 3a1f3342373..0996486bdc9 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignment.cs
@@ -36,7 +36,7 @@ public partial class DeviceCompliancePolicyAssignment : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignmentCollectionResponse.cs
index 3d7ab5b9f3c..568cc68d645 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceCompliancePolicyAssignmentCollectionResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCompliancePolicyAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyCollectionResponse.cs
index f350ce7e201..f9f03099be8 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceCompliancePolicyCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCompliancePolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyDeviceStateSummary.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyDeviceStateSummary.cs
index 707c66f5cc9..07358e154d1 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyDeviceStateSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyDeviceStateSummary.cs
@@ -73,7 +73,7 @@ public int? UnknownDeviceCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicyDeviceStateSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicyDeviceStateSummary();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("compliantDeviceCount", CompliantDeviceCount);
             writer.WriteIntValue("configManagerCount", ConfigManagerCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingState.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingState.cs
index c15a461563b..f04c09b2ab5 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingState.cs
@@ -225,7 +225,7 @@ public DeviceCompliancePolicySettingState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceCompliancePolicySettingState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicySettingState();
         }
         /// <summary>
@@ -257,7 +257,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("currentValue", CurrentValue);
             writer.WriteLongValue("errorCode", ErrorCode);
             writer.WriteStringValue("errorDescription", ErrorDescription);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummary.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummary.cs
index a17124533a6..14c59f928c0 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummary.cs
@@ -116,7 +116,7 @@ public int? UnknownDeviceCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary();
         }
         /// <summary>
@@ -146,7 +146,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("compliantDeviceCount", CompliantDeviceCount);
             writer.WriteIntValue("conflictDeviceCount", ConflictDeviceCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummaryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummaryCollectionResponse.cs
index 305cde33cfd..152c4071e6f 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummaryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicySettingStateSummaryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceCompliancePolicySettingStateSummaryCollectionResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummaryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummaryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCompliancePolicySettingStateSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyState.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyState.cs
index 2e9122a768d..3c3a00968b2 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyState.cs
@@ -76,7 +76,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicyState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicyState();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PolicyPlatformType>("platformType", PlatformType);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyStateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyStateCollectionResponse.cs
index fc379fadccd..6892f60c4f6 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyStateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceCompliancePolicyStateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceCompliancePolicyStateCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceCompliancePolicyStateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceCompliancePolicyStateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceCompliancePolicyState>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRule.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRule.cs
index 616c9909447..0f7880f8a0f 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRule.cs
@@ -52,7 +52,7 @@ public string RuleName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("ruleName", RuleName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceComplianceActionItem>("scheduledActionConfigurations", ScheduledActionConfigurations);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRuleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRuleCollectionResponse.cs
index 9dc3b3ba0b7..41765a0b37c 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRuleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceScheduledActionForRuleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceComplianceScheduledActionForRuleCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRuleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRuleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceComplianceScheduledActionForRule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingState.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingState.cs
index 9d69742f95f..3818c7a56fa 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingState.cs
@@ -176,7 +176,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceSettingState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceSettingState();
         }
         /// <summary>
@@ -206,7 +206,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("complianceGracePeriodExpirationDateTime", ComplianceGracePeriodExpirationDateTime);
             writer.WriteStringValue("deviceId", DeviceId);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingStateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingStateCollectionResponse.cs
index 8fb1e11ed42..acfca6cf145 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingStateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceSettingStateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceComplianceSettingStateCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceSettingStateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceSettingStateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceComplianceSettingState>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserOverview.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserOverview.cs
index b0e425dd85c..b5ac44752cb 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserOverview.cs
@@ -61,7 +61,7 @@ public int? SuccessCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceUserOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceUserOverview();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("configurationVersion", ConfigurationVersion);
             writer.WriteIntValue("errorCount", ErrorCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatus.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatus.cs
index bb1d1b0f2ba..1ae8577dfee 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatus.cs
@@ -69,7 +69,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceUserStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceUserStatus();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("devicesCount", DevicesCount);
             writer.WriteDateTimeOffsetValue("lastReportedDateTime", LastReportedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatusCollectionResponse.cs
index f050ce4497d..55d9442f6bd 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceComplianceUserStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceComplianceUserStatusCollectionResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceComplianceUserStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceComplianceUserStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceComplianceUserStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfiguration.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfiguration.cs
index 695a734b548..3b43ee9f02d 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfiguration.cs
@@ -166,7 +166,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -226,7 +226,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfigurationAssignment>("assignments", Assignments);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignment.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignment.cs
index 9398cd522da..fdfb5e6de6a 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignment.cs
@@ -36,7 +36,7 @@ public partial class DeviceConfigurationAssignment : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignmentCollectionResponse.cs
index 84dfa6e501f..a9a209192dc 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceConfigurationAssignmentCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfigurationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationCollectionResponse.cs
index 1de81348417..3d573e18710 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceConfigurationCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceOverview.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceOverview.cs
index 5ef153b3305..4308e2fa853 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceOverview.cs
@@ -61,7 +61,7 @@ public int? SuccessCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationDeviceOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationDeviceOverview();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("configurationVersion", ConfigurationVersion);
             writer.WriteIntValue("errorCount", ErrorCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStateSummary.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStateSummary.cs
index 68328140a10..aad01a3a33e 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStateSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStateSummary.cs
@@ -61,7 +61,7 @@ public int? UnknownDeviceCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationDeviceStateSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationDeviceStateSummary();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("compliantDeviceCount", CompliantDeviceCount);
             writer.WriteIntValue("conflictDeviceCount", ConflictDeviceCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatus.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatus.cs
index e1074861621..4ac9ccd8a22 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatus.cs
@@ -102,7 +102,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus();
         }
         /// <summary>
@@ -128,7 +128,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("complianceGracePeriodExpirationDateTime", ComplianceGracePeriodExpirationDateTime);
             writer.WriteStringValue("deviceDisplayName", DeviceDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatusCollectionResponse.cs
index a344ac12c24..7fc9b00864e 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationDeviceStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceConfigurationDeviceStatusCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfigurationDeviceStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationSettingState.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationSettingState.cs
index 21cb1daf307..f486608ee86 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationSettingState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationSettingState.cs
@@ -225,7 +225,7 @@ public DeviceConfigurationSettingState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceConfigurationSettingState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationSettingState();
         }
         /// <summary>
@@ -257,7 +257,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("currentValue", CurrentValue);
             writer.WriteLongValue("errorCode", ErrorCode);
             writer.WriteStringValue("errorDescription", ErrorDescription);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationState.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationState.cs
index a83373fbc8d..9d1808bfdb5 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationState.cs
@@ -76,7 +76,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationState();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PolicyPlatformType>("platformType", PlatformType);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationStateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationStateCollectionResponse.cs
index 920eb394c6b..8a154df9ddb 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationStateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationStateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceConfigurationStateCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationStateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationStateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfigurationState>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserOverview.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserOverview.cs
index fe2a38a880c..07f4e5bedf9 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserOverview.cs
@@ -61,7 +61,7 @@ public int? SuccessCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationUserOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationUserOverview();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("configurationVersion", ConfigurationVersion);
             writer.WriteIntValue("errorCount", ErrorCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatus.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatus.cs
index baa853dec3c..13a9a9c61c0 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatus.cs
@@ -69,7 +69,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationUserStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationUserStatus();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("devicesCount", DevicesCount);
             writer.WriteDateTimeOffsetValue("lastReportedDateTime", LastReportedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatusCollectionResponse.cs
index bd735cefa32..0e4ea792466 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceConfigurationUserStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceConfigurationUserStatusCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceConfigurationUserStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceConfigurationUserStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceConfigurationUserStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceDetail.cs b/src/Microsoft.Graph/Generated/Models/DeviceDetail.cs
index 27fc622b6e8..afe75bf1823 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceDetail.cs
@@ -144,7 +144,7 @@ public DeviceDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceDetail();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("browser", Browser);
             writer.WriteStringValue("deviceId", DeviceId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfiguration.cs b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfiguration.cs
index 163d033bdbe..6b09237cf3e 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfiguration.cs
@@ -92,7 +92,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -126,7 +126,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment>("assignments", Assignments);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfigurationCollectionResponse.cs
index 872a5d391c1..26089d61b05 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceEnrollmentConfigurationCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceEnrollmentConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceEnrollmentConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceEnrollmentConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentLimitConfiguration.cs b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentLimitConfiguration.cs
index 9b5da1cc75c..f0ce8edd712 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentLimitConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentLimitConfiguration.cs
@@ -33,7 +33,7 @@ public DeviceEnrollmentLimitConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceEnrollmentLimitConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceEnrollmentLimitConfiguration();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("limit", Limit);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestriction.cs b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestriction.cs
index b4e3a105505..3946a830429 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestriction.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestriction.cs
@@ -97,7 +97,7 @@ public DeviceEnrollmentPlatformRestriction()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceEnrollmentPlatformRestriction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceEnrollmentPlatformRestriction();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("osMaximumVersion", OsMaximumVersion);
             writer.WriteStringValue("osMinimumVersion", OsMinimumVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestrictionsConfiguration.cs b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestrictionsConfiguration.cs
index 6bc62a9401e..521f537df22 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestrictionsConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentPlatformRestrictionsConfiguration.cs
@@ -107,7 +107,7 @@ public DeviceEnrollmentPlatformRestrictionsConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceEnrollmentPlatformRestrictionsConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceEnrollmentPlatformRestrictionsConfiguration();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceEnrollmentPlatformRestriction>("androidRestriction", AndroidRestriction);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceEnrollmentPlatformRestriction>("iosRestriction", IosRestriction);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentWindowsHelloForBusinessConfiguration.cs b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentWindowsHelloForBusinessConfiguration.cs
index 79b8b4facdc..d90a1f2f040 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentWindowsHelloForBusinessConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceEnrollmentWindowsHelloForBusinessConfiguration.cs
@@ -99,7 +99,7 @@ public DeviceEnrollmentWindowsHelloForBusinessConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceEnrollmentWindowsHelloForBusinessConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceEnrollmentWindowsHelloForBusinessConfiguration();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Enablement>("enhancedBiometricsState", EnhancedBiometricsState);
             writer.WriteIntValue("pinExpirationInDays", PinExpirationInDays);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceExchangeAccessStateSummary.cs b/src/Microsoft.Graph/Generated/Models/DeviceExchangeAccessStateSummary.cs
index ab98bf286c2..0f1f35ce3ce 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceExchangeAccessStateSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceExchangeAccessStateSummary.cs
@@ -83,7 +83,7 @@ public DeviceExchangeAccessStateSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceExchangeAccessStateSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceExchangeAccessStateSummary();
         }
         /// <summary>
@@ -108,7 +108,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("allowedDeviceCount", AllowedDeviceCount);
             writer.WriteIntValue("blockedDeviceCount", BlockedDeviceCount);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceGeoLocation.cs b/src/Microsoft.Graph/Generated/Models/DeviceGeoLocation.cs
index add47a86794..bf4be357c29 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceGeoLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceGeoLocation.cs
@@ -101,7 +101,7 @@ public DeviceGeoLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceGeoLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceGeoLocation();
         }
         /// <summary>
@@ -129,7 +129,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDoubleValue("altitude", Altitude);
             writer.WriteDoubleValue("heading", Heading);
             writer.WriteDoubleValue("horizontalAccuracy", HorizontalAccuracy);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceHealthAttestationState.cs b/src/Microsoft.Graph/Generated/Models/DeviceHealthAttestationState.cs
index 613cf003a77..4d95bd8a7d7 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceHealthAttestationState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceHealthAttestationState.cs
@@ -534,7 +534,7 @@ public DeviceHealthAttestationState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceHealthAttestationState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceHealthAttestationState();
         }
         /// <summary>
@@ -586,7 +586,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("attestationIdentityKey", AttestationIdentityKey);
             writer.WriteStringValue("bitLockerStatus", BitLockerStatus);
             writer.WriteStringValue("bootAppSecurityVersion", BootAppSecurityVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceInfo.cs b/src/Microsoft.Graph/Generated/Models/DeviceInfo.cs
index 3c7271a51f3..e77fe74a019 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceInfo.cs
@@ -506,7 +506,7 @@ public DeviceInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceInfo();
         }
         /// <summary>
@@ -555,7 +555,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("deviceId", DeviceId);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("enrollmentProfileName", EnrollmentProfileName);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceInstallState.cs b/src/Microsoft.Graph/Generated/Models/DeviceInstallState.cs
index f9bbc764cf1..3a235ff0846 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceInstallState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceInstallState.cs
@@ -128,7 +128,7 @@ public string UserName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceInstallState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceInstallState();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("deviceId", DeviceId);
             writer.WriteStringValue("deviceName", DeviceName);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceInstallStateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceInstallStateCollectionResponse.cs
index dd62a566dcc..eca7462bd0e 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceInstallStateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceInstallStateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceInstallStateCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceInstallStateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceInstallStateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceInstallState>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceLocalCredential.cs b/src/Microsoft.Graph/Generated/Models/DeviceLocalCredential.cs
index 550d7693732..eaa0b53730d 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceLocalCredential.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceLocalCredential.cs
@@ -73,7 +73,7 @@ public string PasswordBase64
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceLocalCredential CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceLocalCredential();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("accountName", AccountName);
             writer.WriteStringValue("accountSid", AccountSid);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfo.cs b/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfo.cs
index ad2019271e3..fb735a1e7cd 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfo.cs
@@ -63,7 +63,7 @@ public DateTimeOffset? RefreshDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceLocalCredentialInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceLocalCredentialInfo();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceLocalCredential>("credentials", Credentials);
             writer.WriteStringValue("deviceName", DeviceName);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfoCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfoCollectionResponse.cs
index 69b9c456a24..bb3d8fdd865 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfoCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceLocalCredentialInfoCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceLocalCredentialInfoCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceLocalCredentialInfoCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceLocalCredentialInfoCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceLocalCredentialInfo>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponse.cs
index c1df48acc0a..70eb8b92afe 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponse.cs
@@ -88,7 +88,7 @@ public double? SizeInKB
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceLogCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceLogCollectionResponse();
         }
         /// <summary>
@@ -115,7 +115,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("enrolledByUser", EnrolledByUser);
             writer.WriteDateTimeOffsetValue("expirationDateTimeUTC", ExpirationDateTimeUTC);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponseCollectionResponse.cs
index b29c7b6fa0e..0194d1543b5 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceLogCollectionResponseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceLogCollectionResponseCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceLogCollectionResponseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceLogCollectionResponseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceLogCollectionResponse>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagement.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagement.cs
index 3b585dc5c66..f7d4be63af8 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagement.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagement.cs
@@ -1039,7 +1039,7 @@ public Guid? IntuneAccountId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagement CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagement();
         }
         /// <summary>
@@ -1123,7 +1123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ApplePushNotificationCertificate>("applePushNotificationCertificate", ApplePushNotificationCertificate);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuditEvent>("auditEvents", AuditEvents);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementCachedReportConfiguration.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementCachedReportConfiguration.cs
index e8b5e64e72b..c0a4d936cd5 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementCachedReportConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementCachedReportConfiguration.cs
@@ -20,7 +20,7 @@ public partial class DeviceManagementCachedReportConfiguration : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementCachedReportConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementCachedReportConfiguration();
         }
         /// <summary>
@@ -39,7 +39,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnector.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnector.cs
index 2fac9f7a40d..e50ee21d196 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnector.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnector.cs
@@ -134,7 +134,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementExchangeConnector CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementExchangeConnector();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("connectorServerName", ConnectorServerName);
             writer.WriteStringValue("exchangeAlias", ExchangeAlias);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnectorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnectorCollectionResponse.cs
index f4417866d12..ca1669deb06 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnectorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementExchangeConnectorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceManagementExchangeConnectorCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementExchangeConnectorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementExchangeConnectorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceManagementExchangeConnector>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJob.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJob.cs
index c8b25f05a1f..9a27c8ba23f 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJob.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJob.cs
@@ -130,7 +130,7 @@ public string Url
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementExportJob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementExportJob();
         }
         /// <summary>
@@ -159,7 +159,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("filter", Filter);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJobCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJobCollectionResponse.cs
index 92d137fa35a..837fb2e0ba7 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJobCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementExportJobCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceManagementExportJobCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementExportJobCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementExportJobCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceManagementExportJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementPartner.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementPartner.cs
index 7d8ed5c8390..a210bedd638 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementPartner.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementPartner.cs
@@ -104,7 +104,7 @@ public DateTimeOffset? WhenPartnerDevicesWillBeRemovedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementPartner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementPartner();
         }
         /// <summary>
@@ -132,7 +132,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceManagementPartnerAssignment>("groupsRequiringPartnerEnrollment", GroupsRequiringPartnerEnrollment);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerAssignment.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerAssignment.cs
index 504261cc708..8476d80f795 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerAssignment.cs
@@ -69,7 +69,7 @@ public DeviceManagementPartnerAssignment()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceManagementPartnerAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementPartnerAssignment();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerCollectionResponse.cs
index 90ec5005c62..0c19a85cc59 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementPartnerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceManagementPartnerCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementPartnerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementPartnerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceManagementPartner>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementReports.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementReports.cs
index 28c36adfd61..269aa54845f 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementReports.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementReports.cs
@@ -35,7 +35,7 @@ public partial class DeviceManagementReports : global::Microsoft.Graph.Models.En
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementReports CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementReports();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceManagementExportJob>("exportJobs", ExportJobs);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementSettings.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementSettings.cs
index 56e38c624c5..6f5321667ab 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementSettings.cs
@@ -70,7 +70,7 @@ public DeviceManagementSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceManagementSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementSettings();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("deviceComplianceCheckinThresholdDays", DeviceComplianceCheckinThresholdDays);
             writer.WriteBoolValue("isScheduledActionEnabled", IsScheduledActionEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEvent.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEvent.cs
index 18d7e976d69..97e81aada01 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEvent.cs
@@ -42,7 +42,7 @@ public DateTimeOffset? EventDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -68,7 +68,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("correlationId", CorrelationId);
             writer.WriteDateTimeOffsetValue("eventDateTime", EventDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEventCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEventCollectionResponse.cs
index 235bc9514aa..d51fd7a0ab1 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEventCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceManagementTroubleshootingEventCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DeviceManagementTroubleshootingEventCollectionResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEventCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEventCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceMetadata.cs b/src/Microsoft.Graph/Generated/Models/DeviceMetadata.cs
index 95a0d46d9d1..882e67a26ea 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceMetadata.cs
@@ -100,7 +100,7 @@ public DeviceMetadata()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceMetadata();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("deviceType", DeviceType);
             writer.WriteStringValue("ipAddress", IpAddress);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceOperatingSystemSummary.cs b/src/Microsoft.Graph/Generated/Models/DeviceOperatingSystemSummary.cs
index 7ea2aa55510..66b185e20b4 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceOperatingSystemSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceOperatingSystemSummary.cs
@@ -125,7 +125,7 @@ public DeviceOperatingSystemSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceOperatingSystemSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceOperatingSystemSummary();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("androidCorporateWorkProfileCount", AndroidCorporateWorkProfileCount);
             writer.WriteIntValue("androidCount", AndroidCount);
             writer.WriteIntValue("androidDedicatedCount", AndroidDedicatedCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceProtectionOverview.cs b/src/Microsoft.Graph/Generated/Models/DeviceProtectionOverview.cs
index de8850c44b3..ba4a0c525da 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceProtectionOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceProtectionOverview.cs
@@ -119,7 +119,7 @@ public DeviceProtectionOverview()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceProtectionOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceProtectionOverview();
         }
         /// <summary>
@@ -150,7 +150,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("cleanDeviceCount", CleanDeviceCount);
             writer.WriteIntValue("criticalFailuresDeviceCount", CriticalFailuresDeviceCount);
             writer.WriteIntValue("inactiveThreatAgentDeviceCount", InactiveThreatAgentDeviceCount);
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceRegistrationMembership.cs b/src/Microsoft.Graph/Generated/Models/DeviceRegistrationMembership.cs
index b03aa69e8b2..cfb2f9fae39 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceRegistrationMembership.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceRegistrationMembership.cs
@@ -52,7 +52,7 @@ public DeviceRegistrationMembership()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DeviceRegistrationMembership CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DeviceRegistrationPolicy.cs b/src/Microsoft.Graph/Generated/Models/DeviceRegistrationPolicy.cs
index a7b14ffcc9d..e205727f84c 100644
--- a/src/Microsoft.Graph/Generated/Models/DeviceRegistrationPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/DeviceRegistrationPolicy.cs
@@ -111,7 +111,7 @@ public int? UserDeviceQuota
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DeviceRegistrationPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DeviceRegistrationPolicy();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AzureADJoinPolicy>("azureADJoin", AzureADJoin);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AzureADRegistrationPolicy>("azureADRegistration", AzureADRegistration);
diff --git a/src/Microsoft.Graph/Generated/Models/DevicesFilter.cs b/src/Microsoft.Graph/Generated/Models/DevicesFilter.cs
index 938d8bc0745..443ce8062b9 100644
--- a/src/Microsoft.Graph/Generated/Models/DevicesFilter.cs
+++ b/src/Microsoft.Graph/Generated/Models/DevicesFilter.cs
@@ -74,7 +74,7 @@ public DevicesFilter()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DevicesFilter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DevicesFilter();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyTargetConfigurationAccessType>("mode", Mode);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("rule", Rule);
diff --git a/src/Microsoft.Graph/Generated/Models/Dictionary.cs b/src/Microsoft.Graph/Generated/Models/Dictionary.cs
index a7f31e03a66..d5926cb2f52 100644
--- a/src/Microsoft.Graph/Generated/Models/Dictionary.cs
+++ b/src/Microsoft.Graph/Generated/Models/Dictionary.cs
@@ -52,7 +52,7 @@ public Dictionary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Dictionary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryAudit.cs b/src/Microsoft.Graph/Generated/Models/DirectoryAudit.cs
index f6d64b1dfbd..1496cb0acfd 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryAudit.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryAudit.cs
@@ -175,7 +175,7 @@ public string ResultReason
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryAudit CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryAudit();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("activityDateTime", ActivityDateTime);
             writer.WriteStringValue("activityDisplayName", ActivityDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryAuditCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DirectoryAuditCollectionResponse.cs
index c4101c0e228..af8512fe3b4 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryAuditCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryAuditCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DirectoryAuditCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryAuditCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryAuditCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryAudit>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryDefinition.cs b/src/Microsoft.Graph/Generated/Models/DirectoryDefinition.cs
index b25fb88bed4..83fc85f5377 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryDefinition.cs
@@ -85,7 +85,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryDefinition();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DirectoryDefinitionDiscoverabilities>("discoverabilities", Discoverabilities);
             writer.WriteDateTimeOffsetValue("discoveryDateTime", DiscoveryDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DirectoryDefinitionCollectionResponse.cs
index d5c34efc4ab..7cfa511b6a1 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DirectoryDefinitionCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryObject.cs b/src/Microsoft.Graph/Generated/Models/DirectoryObject.cs
index c05ad0c3265..8fe3a73d8f6 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryObject.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryObject.cs
@@ -25,7 +25,7 @@ public DateTimeOffset? DeletedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryObject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -82,7 +82,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("deletedDateTime", DeletedDateTime);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryObject1.cs b/src/Microsoft.Graph/Generated/Models/DirectoryObject1.cs
index b2690005f71..7da2f9a62d0 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryObject1.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryObject1.cs
@@ -163,7 +163,7 @@ public partial class DirectoryObject1 : global::Microsoft.Graph.Models.Entity, I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryObject1 CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryObject1();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AdministrativeUnit>("administrativeUnits", AdministrativeUnits);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeSet>("attributeSets", AttributeSets);
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryObjectCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DirectoryObjectCollectionResponse.cs
index 6940892c26f..23a113b20d1 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryObjectCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryObjectCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DirectoryObjectCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryObjectCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryObjectCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryObjectPartnerReference.cs b/src/Microsoft.Graph/Generated/Models/DirectoryObjectPartnerReference.cs
index b3f56ed5894..bbf1774fcd8 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryObjectPartnerReference.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryObjectPartnerReference.cs
@@ -80,7 +80,7 @@ public DirectoryObjectPartnerReference() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryObjectPartnerReference CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryObjectPartnerReference();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryRole.cs b/src/Microsoft.Graph/Generated/Models/DirectoryRole.cs
index 06285272b7d..eda63e0b2b1 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryRole.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryRole.cs
@@ -106,7 +106,7 @@ public DirectoryRole() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryRole CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryRole();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryRoleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DirectoryRoleCollectionResponse.cs
index 9c0768e2bf4..52b8395e9d3 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryRoleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryRoleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DirectoryRoleCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryRoleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryRoleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryRole>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplate.cs b/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplate.cs
index dcf5a93d2e0..391e01adb2b 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplate.cs
@@ -58,7 +58,7 @@ public DirectoryRoleTemplate() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryRoleTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryRoleTemplate();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplateCollectionResponse.cs
index 01092fcfb68..8cc17d5645a 100644
--- a/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DirectoryRoleTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DirectoryRoleTemplateCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DirectoryRoleTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DirectoryRoleTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryRoleTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DisableAndDeleteUserApplyAction.cs b/src/Microsoft.Graph/Generated/Models/DisableAndDeleteUserApplyAction.cs
index 366c92ce225..589c0e369dc 100644
--- a/src/Microsoft.Graph/Generated/Models/DisableAndDeleteUserApplyAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/DisableAndDeleteUserApplyAction.cs
@@ -26,7 +26,7 @@ public DisableAndDeleteUserApplyAction() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DisableAndDeleteUserApplyAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DisableAndDeleteUserApplyAction();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/DisplayNameLocalization.cs b/src/Microsoft.Graph/Generated/Models/DisplayNameLocalization.cs
index 55e29d39027..878175504dc 100644
--- a/src/Microsoft.Graph/Generated/Models/DisplayNameLocalization.cs
+++ b/src/Microsoft.Graph/Generated/Models/DisplayNameLocalization.cs
@@ -84,7 +84,7 @@ public DisplayNameLocalization()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DisplayNameLocalization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DisplayNameLocalization();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("languageTag", LanguageTag);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DlpActionInfo.cs b/src/Microsoft.Graph/Generated/Models/DlpActionInfo.cs
index 15ad708b804..7929c010cb9 100644
--- a/src/Microsoft.Graph/Generated/Models/DlpActionInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/DlpActionInfo.cs
@@ -58,7 +58,7 @@ public DlpActionInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DlpActionInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -85,7 +85,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DlpAction>("action", Action);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/DocumentSet.cs b/src/Microsoft.Graph/Generated/Models/DocumentSet.cs
index f8c4a8d6f48..b8cff8add42 100644
--- a/src/Microsoft.Graph/Generated/Models/DocumentSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/DocumentSet.cs
@@ -144,7 +144,7 @@ public DocumentSet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DocumentSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DocumentSet();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentTypeInfo>("allowedContentTypes", AllowedContentTypes);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DocumentSetContent>("defaultContents", DefaultContents);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DocumentSetContent.cs b/src/Microsoft.Graph/Generated/Models/DocumentSetContent.cs
index 4f3f0ee46b7..ca0c5e3884c 100644
--- a/src/Microsoft.Graph/Generated/Models/DocumentSetContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/DocumentSetContent.cs
@@ -100,7 +100,7 @@ public DocumentSetContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DocumentSetContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DocumentSetContent();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ContentTypeInfo>("contentType", ContentType);
             writer.WriteStringValue("fileName", FileName);
             writer.WriteStringValue("folderName", FolderName);
diff --git a/src/Microsoft.Graph/Generated/Models/DocumentSetVersion.cs b/src/Microsoft.Graph/Generated/Models/DocumentSetVersion.cs
index 3b9c25470f5..68251d4d9b0 100644
--- a/src/Microsoft.Graph/Generated/Models/DocumentSetVersion.cs
+++ b/src/Microsoft.Graph/Generated/Models/DocumentSetVersion.cs
@@ -86,7 +86,7 @@ public DocumentSetVersion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DocumentSetVersion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DocumentSetVersion();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/DocumentSetVersionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DocumentSetVersionCollectionResponse.cs
index 87b3b4225ef..6998400e7f5 100644
--- a/src/Microsoft.Graph/Generated/Models/DocumentSetVersionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DocumentSetVersionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DocumentSetVersionCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DocumentSetVersionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DocumentSetVersionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DocumentSetVersion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DocumentSetVersionItem.cs b/src/Microsoft.Graph/Generated/Models/DocumentSetVersionItem.cs
index 327d093dc54..1fcf30746dd 100644
--- a/src/Microsoft.Graph/Generated/Models/DocumentSetVersionItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/DocumentSetVersionItem.cs
@@ -100,7 +100,7 @@ public DocumentSetVersionItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DocumentSetVersionItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DocumentSetVersionItem();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("itemId", ItemId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("title", Title);
diff --git a/src/Microsoft.Graph/Generated/Models/Domain.cs b/src/Microsoft.Graph/Generated/Models/Domain.cs
index 8f7ea18120c..bbd68e51443 100644
--- a/src/Microsoft.Graph/Generated/Models/Domain.cs
+++ b/src/Microsoft.Graph/Generated/Models/Domain.cs
@@ -237,7 +237,7 @@ public List<string> SupportedServices
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Domain CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Domain();
         }
         /// <summary>
@@ -274,7 +274,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("authenticationType", AuthenticationType);
             writer.WriteStringValue("availabilityStatus", AvailabilityStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/DomainCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DomainCollectionResponse.cs
index b5ee01cf60a..23b9a78b1b3 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DomainCollectionResponse : global::Microsoft.Graph.Models.B
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Domain>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DomainDnsCnameRecord.cs b/src/Microsoft.Graph/Generated/Models/DomainDnsCnameRecord.cs
index 918c713ce2f..d946f8706bd 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainDnsCnameRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainDnsCnameRecord.cs
@@ -35,7 +35,7 @@ public string CanonicalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainDnsCnameRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainDnsCnameRecord();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("canonicalName", CanonicalName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DomainDnsMxRecord.cs b/src/Microsoft.Graph/Generated/Models/DomainDnsMxRecord.cs
index 36e6eb3c37b..7a9d3a48895 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainDnsMxRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainDnsMxRecord.cs
@@ -41,7 +41,7 @@ public int? Preference
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainDnsMxRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainDnsMxRecord();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("mailExchange", MailExchange);
             writer.WriteIntValue("preference", Preference);
diff --git a/src/Microsoft.Graph/Generated/Models/DomainDnsRecord.cs b/src/Microsoft.Graph/Generated/Models/DomainDnsRecord.cs
index 49027563ddb..1cba681a9dd 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainDnsRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainDnsRecord.cs
@@ -79,7 +79,7 @@ public int? Ttl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainDnsRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -112,7 +112,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isOptional", IsOptional);
             writer.WriteStringValue("label", Label);
diff --git a/src/Microsoft.Graph/Generated/Models/DomainDnsRecordCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DomainDnsRecordCollectionResponse.cs
index c3844e3e0df..f5a4c450f60 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainDnsRecordCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainDnsRecordCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DomainDnsRecordCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainDnsRecordCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainDnsRecordCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DomainDnsRecord>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DomainDnsSrvRecord.cs b/src/Microsoft.Graph/Generated/Models/DomainDnsSrvRecord.cs
index 942bbd41941..b9b7363c527 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainDnsSrvRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainDnsSrvRecord.cs
@@ -85,7 +85,7 @@ public int? Weight
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainDnsSrvRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainDnsSrvRecord();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("nameTarget", NameTarget);
             writer.WriteIntValue("port", Port);
diff --git a/src/Microsoft.Graph/Generated/Models/DomainDnsTxtRecord.cs b/src/Microsoft.Graph/Generated/Models/DomainDnsTxtRecord.cs
index fe0b37d1f0a..928bbd7eb88 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainDnsTxtRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainDnsTxtRecord.cs
@@ -35,7 +35,7 @@ public string Text
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainDnsTxtRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainDnsTxtRecord();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("text", Text);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DomainDnsUnavailableRecord.cs b/src/Microsoft.Graph/Generated/Models/DomainDnsUnavailableRecord.cs
index f604edeaf2b..f0225d2007d 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainDnsUnavailableRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainDnsUnavailableRecord.cs
@@ -35,7 +35,7 @@ public string Description
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainDnsUnavailableRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainDnsUnavailableRecord();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DomainIdentitySource.cs b/src/Microsoft.Graph/Generated/Models/DomainIdentitySource.cs
index 62a11b70a42..5194b50dfd2 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainIdentitySource.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainIdentitySource.cs
@@ -58,7 +58,7 @@ public DomainIdentitySource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DomainIdentitySource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainIdentitySource();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("domainName", DomainName);
diff --git a/src/Microsoft.Graph/Generated/Models/DomainState.cs b/src/Microsoft.Graph/Generated/Models/DomainState.cs
index fd5f3939309..def5829dfdb 100644
--- a/src/Microsoft.Graph/Generated/Models/DomainState.cs
+++ b/src/Microsoft.Graph/Generated/Models/DomainState.cs
@@ -90,7 +90,7 @@ public DomainState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DomainState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DomainState();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastActionDateTime", LastActionDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("operation", Operation);
diff --git a/src/Microsoft.Graph/Generated/Models/Drive.cs b/src/Microsoft.Graph/Generated/Models/Drive.cs
index 88ece3b8224..dceab60a82a 100644
--- a/src/Microsoft.Graph/Generated/Models/Drive.cs
+++ b/src/Microsoft.Graph/Generated/Models/Drive.cs
@@ -202,7 +202,7 @@ public Drive() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Drive CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Drive();
         }
         /// <summary>
@@ -232,7 +232,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("bundles", Bundles);
             writer.WriteStringValue("driveType", DriveType);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveCollectionResponse.cs
index d5d56d73d45..5369b181192 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Drive>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveItem.cs b/src/Microsoft.Graph/Generated/Models/DriveItem.cs
index 5cfd7725950..3ceec3fea57 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveItem.cs
@@ -544,7 +544,7 @@ public DriveItem() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveItem();
         }
         /// <summary>
@@ -596,7 +596,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemAnalytics>("analytics", Analytics);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Audio>("audio", Audio);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveItemCollectionResponse.cs
index 27de67b1cf6..3b30c0bc453 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveItemCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveItemSource.cs b/src/Microsoft.Graph/Generated/Models/DriveItemSource.cs
index 8160c8815f8..1c32b738984 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveItemSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveItemSource.cs
@@ -74,7 +74,7 @@ public DriveItemSource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DriveItemSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveItemSource();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DriveItemSourceApplication>("application", Application);
             writer.WriteStringValue("externalId", ExternalId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveItemUploadableProperties.cs b/src/Microsoft.Graph/Generated/Models/DriveItemUploadableProperties.cs
index 8972aeab27b..f96c7eab91f 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveItemUploadableProperties.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveItemUploadableProperties.cs
@@ -138,7 +138,7 @@ public DriveItemUploadableProperties()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DriveItemUploadableProperties CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveItemUploadableProperties();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DriveItemSource>("driveItemSource", DriveItemSource);
             writer.WriteLongValue("fileSize", FileSize);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveItemVersion.cs b/src/Microsoft.Graph/Generated/Models/DriveItemVersion.cs
index 1a9a8141eeb..82ab12970af 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveItemVersion.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveItemVersion.cs
@@ -48,7 +48,7 @@ public DriveItemVersion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveItemVersion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveItemVersion();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("content", Content);
             writer.WriteLongValue("size", Size);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveItemVersionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveItemVersionCollectionResponse.cs
index 98410679f79..733534cb5d9 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveItemVersionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveItemVersionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveItemVersionCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveItemVersionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveItemVersionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItemVersion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveProtectionRule.cs b/src/Microsoft.Graph/Generated/Models/DriveProtectionRule.cs
index 0db370f81ed..ee884e915f9 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveProtectionRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveProtectionRule.cs
@@ -42,7 +42,7 @@ public DriveProtectionRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveProtectionRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveProtectionRule();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("driveExpression", DriveExpression);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveProtectionRuleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveProtectionRuleCollectionResponse.cs
index 9310c8cbd1e..43a7284f61c 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveProtectionRuleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveProtectionRuleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveProtectionRuleCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveProtectionRuleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveProtectionRuleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveProtectionRule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnit.cs b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnit.cs
index 57954d5325d..08903fa9465 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnit.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnit.cs
@@ -74,7 +74,7 @@ public DriveProtectionUnit() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveProtectionUnit CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveProtectionUnit();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("directoryObjectId", DirectoryObjectId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitCollectionResponse.cs
index fcdc4b07970..b7452d9a5fd 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveProtectionUnitCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveProtectionUnitCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveProtectionUnitCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveProtectionUnit>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJob.cs b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJob.cs
index bfcf24cca1c..a12c6e19f4b 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJob.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJob.cs
@@ -58,7 +58,7 @@ public DriveProtectionUnitsBulkAdditionJob() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("directoryObjectIds", DirectoryObjectIds);
             writer.WriteCollectionOfPrimitiveValues<string>("drives", Drives);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJobCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJobCollectionResponse.cs
index 1122c57b70c..f9ef5933a02 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJobCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveProtectionUnitsBulkAdditionJobCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveProtectionUnitsBulkAdditionJobCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJobCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJobCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveRecipient.cs b/src/Microsoft.Graph/Generated/Models/DriveRecipient.cs
index 3c5ea11ffe1..d14ef0d8b47 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveRecipient.cs
@@ -100,7 +100,7 @@ public DriveRecipient()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.DriveRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveRecipient();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("alias", Alias);
             writer.WriteStringValue("email", Email);
             writer.WriteStringValue("objectId", ObjectId);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifact.cs b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifact.cs
index 49458f24bbe..25037ea29b7 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifact.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifact.cs
@@ -67,7 +67,7 @@ public string RestoredSiteWebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveRestoreArtifact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveRestoreArtifact();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("restoredSiteId", RestoredSiteId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactCollectionResponse.cs
index c0a83782062..57bac08be3f 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveRestoreArtifactCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveRestoreArtifactCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveRestoreArtifactCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRestoreArtifact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequest.cs b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequest.cs
index 7c5ee4f9c47..4f92c2c01b6 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequest.cs
@@ -51,7 +51,7 @@ public List<string> Drives
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("directoryObjectIds", DirectoryObjectIds);
             writer.WriteCollectionOfPrimitiveValues<string>("drives", Drives);
diff --git a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
index 42eac19a016..e06367bfa85 100644
--- a/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/DriveRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DriveRestoreArtifactsBulkAdditionRequestCollectionResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EBookInstallSummary.cs b/src/Microsoft.Graph/Generated/Models/EBookInstallSummary.cs
index 5a0757febdf..99846f2e988 100644
--- a/src/Microsoft.Graph/Generated/Models/EBookInstallSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/EBookInstallSummary.cs
@@ -56,7 +56,7 @@ public int? NotInstalledUserCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EBookInstallSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EBookInstallSummary();
         }
         /// <summary>
@@ -81,7 +81,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("failedDeviceCount", FailedDeviceCount);
             writer.WriteIntValue("failedUserCount", FailedUserCount);
diff --git a/src/Microsoft.Graph/Generated/Models/Edge.cs b/src/Microsoft.Graph/Generated/Models/Edge.cs
index 3710df879b4..899043342c1 100644
--- a/src/Microsoft.Graph/Generated/Models/Edge.cs
+++ b/src/Microsoft.Graph/Generated/Models/Edge.cs
@@ -35,7 +35,7 @@ public partial class Edge : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Edge CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Edge();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.InternetExplorerMode>("internetExplorerMode", InternetExplorerMode);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EdgeSearchEngine.cs b/src/Microsoft.Graph/Generated/Models/EdgeSearchEngine.cs
index 1e7d1401d15..ade5e91d094 100644
--- a/src/Microsoft.Graph/Generated/Models/EdgeSearchEngine.cs
+++ b/src/Microsoft.Graph/Generated/Models/EdgeSearchEngine.cs
@@ -33,7 +33,7 @@ public EdgeSearchEngine() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EdgeSearchEngine CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EdgeSearchEngine();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EdgeSearchEngineType>("edgeSearchEngineType", EdgeSearchEngineType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineBase.cs b/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineBase.cs
index 45ca2d10742..ec136e8dff5 100644
--- a/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineBase.cs
@@ -53,7 +53,7 @@ public EdgeSearchEngineBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EdgeSearchEngineBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineCustom.cs b/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineCustom.cs
index 42737af5adf..59c6287f8b7 100644
--- a/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineCustom.cs
+++ b/src/Microsoft.Graph/Generated/Models/EdgeSearchEngineCustom.cs
@@ -43,7 +43,7 @@ public EdgeSearchEngineCustom() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EdgeSearchEngineCustom CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EdgeSearchEngineCustom();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("edgeSearchEngineOpenSearchXmlUrl", EdgeSearchEngineOpenSearchXmlUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EditionUpgradeConfiguration.cs b/src/Microsoft.Graph/Generated/Models/EditionUpgradeConfiguration.cs
index 582e5706fd4..768c9042bfb 100644
--- a/src/Microsoft.Graph/Generated/Models/EditionUpgradeConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/EditionUpgradeConfiguration.cs
@@ -71,7 +71,7 @@ public EditionUpgradeConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EditionUpgradeConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EditionUpgradeConfiguration();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("license", License);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EditionUpgradeLicenseType>("licenseType", LicenseType);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignment.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignment.cs
index 501853160f8..ea06185abdf 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignment.cs
@@ -357,7 +357,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignment();
         }
         /// <summary>
@@ -404,7 +404,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EducationAddedStudentAction>("addedStudentAction", AddedStudentAction);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EducationAddToCalendarOptions>("addToCalendarAction", AddToCalendarAction);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentClassRecipient.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentClassRecipient.cs
index 10582d020ec..c8f7f1c2bae 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentClassRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentClassRecipient.cs
@@ -26,7 +26,7 @@ public EducationAssignmentClassRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentClassRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentClassRecipient();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentCollectionResponse.cs
index 3ab70117e18..66ef7b1a076 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationAssignmentCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentDefaults.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentDefaults.cs
index 47abb44b40f..ed4144a406a 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentDefaults.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentDefaults.cs
@@ -54,7 +54,7 @@ public string NotificationChannelUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentDefaults CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentDefaults();
         }
         /// <summary>
@@ -77,7 +77,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EducationAddedStudentAction>("addedStudentAction", AddedStudentAction);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EducationAddToCalendarOptions>("addToCalendarAction", AddToCalendarAction);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentGrade.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentGrade.cs
index c641dfb5d38..97b43fb69e3 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentGrade.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentGrade.cs
@@ -74,7 +74,7 @@ public EducationAssignmentGrade()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationAssignmentGrade CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("gradedBy", GradedBy);
             writer.WriteDateTimeOffsetValue("gradedDateTime", GradedDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentGradeType.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentGradeType.cs
index b2e93ac9f44..83cd8f07760 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentGradeType.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentGradeType.cs
@@ -52,7 +52,7 @@ public EducationAssignmentGradeType()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationAssignmentGradeType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentGroupRecipient.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentGroupRecipient.cs
index c473b4b5936..f79c8044419 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentGroupRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentGroupRecipient.cs
@@ -26,7 +26,7 @@ public EducationAssignmentGroupRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentGroupRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentGroupRecipient();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentIndividualRecipient.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentIndividualRecipient.cs
index ed8e58d9218..0789a8cd0ac 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentIndividualRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentIndividualRecipient.cs
@@ -42,7 +42,7 @@ public EducationAssignmentIndividualRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentIndividualRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentIndividualRecipient();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("recipients", Recipients);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGrade.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGrade.cs
index e74a50b97a7..cc5401a60fa 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGrade.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGrade.cs
@@ -32,7 +32,7 @@ public EducationAssignmentPointsGrade() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentPointsGrade CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentPointsGrade();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteFloatValue("points", Points);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGradeType.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGradeType.cs
index c4981bf5f07..ede4d8e03da 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGradeType.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentPointsGradeType.cs
@@ -32,7 +32,7 @@ public EducationAssignmentPointsGradeType() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentPointsGradeType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentPointsGradeType();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteFloatValue("maxPoints", MaxPoints);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentRecipient.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentRecipient.cs
index 8a89ffd569b..ef3be3247ab 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentRecipient.cs
@@ -52,7 +52,7 @@ public EducationAssignmentRecipient()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationAssignmentRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentResource.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentResource.cs
index 80d0da0fa1d..5698f273870 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentResource.cs
@@ -41,7 +41,7 @@ public bool? DistributeForStudentWork
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("distributeForStudentWork", DistributeForStudentWork);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationResource>("resource", Resource);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentResourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentResourceCollectionResponse.cs
index 15e65b8fcd7..20cecb19fa1 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentResourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentResourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationAssignmentResourceCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentResourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentResourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationAssignmentResource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/EducationAssignmentSettings.cs
index add06b620f4..d405ea3ef47 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationAssignmentSettings.cs
@@ -41,7 +41,7 @@ public bool? SubmissionAnimationDisabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationAssignmentSettings();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationGradingCategory>("gradingCategories", GradingCategories);
             writer.WriteBoolValue("submissionAnimationDisabled", SubmissionAnimationDisabled);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationCategory.cs b/src/Microsoft.Graph/Generated/Models/EducationCategory.cs
index cb06b4482b8..88ed389eb90 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationCategory.cs
@@ -35,7 +35,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationCategory();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationCategoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationCategoryCollectionResponse.cs
index 627af5ec694..e761dae74e4 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationCategoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationCategoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationCategoryCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationCategoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationCategoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationChannelResource.cs b/src/Microsoft.Graph/Generated/Models/EducationChannelResource.cs
index 54073e53058..b46e1045b76 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationChannelResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationChannelResource.cs
@@ -42,7 +42,7 @@ public EducationChannelResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationChannelResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationChannelResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("url", Url);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationClass.cs b/src/Microsoft.Graph/Generated/Models/EducationClass.cs
index 648970a0ad0..1a3d3ecef80 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationClass.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationClass.cs
@@ -345,7 +345,7 @@ public string MailNickname
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationClass CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationClass();
         }
         /// <summary>
@@ -385,7 +385,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationCategory>("assignmentCategories", AssignmentCategories);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationAssignmentDefaults>("assignmentDefaults", AssignmentDefaults);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationClassCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationClassCollectionResponse.cs
index 761ef57fcca..efb1700734e 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationClassCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationClassCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationClassCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationClassCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationClassCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationClass>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationCourse.cs b/src/Microsoft.Graph/Generated/Models/EducationCourse.cs
index 6fff89a81a7..e9552b8269f 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationCourse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationCourse.cs
@@ -132,7 +132,7 @@ public EducationCourse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationCourse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationCourse();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("courseNumber", CourseNumber);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationExcelResource.cs b/src/Microsoft.Graph/Generated/Models/EducationExcelResource.cs
index 0b65f23b5b9..ab4382329e7 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationExcelResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationExcelResource.cs
@@ -42,7 +42,7 @@ public EducationExcelResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationExcelResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationExcelResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fileUrl", FileUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationExternalResource.cs b/src/Microsoft.Graph/Generated/Models/EducationExternalResource.cs
index e3b066a84ee..c6b52b7fabf 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationExternalResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationExternalResource.cs
@@ -42,7 +42,7 @@ public EducationExternalResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationExternalResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationExternalResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("webUrl", WebUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationFeedback.cs b/src/Microsoft.Graph/Generated/Models/EducationFeedback.cs
index 861edc5d312..80262d2f705 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationFeedback.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationFeedback.cs
@@ -90,7 +90,7 @@ public EducationFeedback()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationFeedback CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationFeedback();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("feedbackBy", FeedbackBy);
             writer.WriteDateTimeOffsetValue("feedbackDateTime", FeedbackDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationFeedbackOutcome.cs b/src/Microsoft.Graph/Generated/Models/EducationFeedbackOutcome.cs
index 22afba44a75..7e3f3c2658c 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationFeedbackOutcome.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationFeedbackOutcome.cs
@@ -58,7 +58,7 @@ public EducationFeedbackOutcome() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationFeedbackOutcome CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationFeedbackOutcome();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationFeedback>("feedback", Feedback);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationFeedback>("publishedFeedback", PublishedFeedback);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationFeedbackResourceOutcome.cs b/src/Microsoft.Graph/Generated/Models/EducationFeedbackResourceOutcome.cs
index f41cd3b1624..e24faf3fae0 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationFeedbackResourceOutcome.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationFeedbackResourceOutcome.cs
@@ -48,7 +48,7 @@ public EducationFeedbackResourceOutcome() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationFeedbackResourceOutcome CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationFeedbackResourceOutcome();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationResource>("feedbackResource", FeedbackResource);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EducationFeedbackResourceOutcomeStatus>("resourceStatus", ResourceStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationFileResource.cs b/src/Microsoft.Graph/Generated/Models/EducationFileResource.cs
index a14affd6867..d6ca8148455 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationFileResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationFileResource.cs
@@ -42,7 +42,7 @@ public EducationFileResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationFileResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationFileResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fileUrl", FileUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationGradingCategory.cs b/src/Microsoft.Graph/Generated/Models/EducationGradingCategory.cs
index 1a933bb9d6d..0b378bb2a87 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationGradingCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationGradingCategory.cs
@@ -41,7 +41,7 @@ public int? PercentageWeight
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationGradingCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationGradingCategory();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteIntValue("percentageWeight", PercentageWeight);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationGradingCategoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationGradingCategoryCollectionResponse.cs
index 62ea14ef3ae..aefa2b4e1df 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationGradingCategoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationGradingCategoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationGradingCategoryCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationGradingCategoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationGradingCategoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationGradingCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationItemBody.cs b/src/Microsoft.Graph/Generated/Models/EducationItemBody.cs
index 4215e4cd950..5897ed7d530 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationItemBody.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationItemBody.cs
@@ -74,7 +74,7 @@ public EducationItemBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationItemBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationItemBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("content", Content);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BodyType>("contentType", ContentType);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationLinkResource.cs b/src/Microsoft.Graph/Generated/Models/EducationLinkResource.cs
index 2e6205fa965..f885f499c8a 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationLinkResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationLinkResource.cs
@@ -42,7 +42,7 @@ public EducationLinkResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationLinkResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationLinkResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("link", Link);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationLinkedAssignmentResource.cs b/src/Microsoft.Graph/Generated/Models/EducationLinkedAssignmentResource.cs
index 8c4a1623854..f315943ec05 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationLinkedAssignmentResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationLinkedAssignmentResource.cs
@@ -42,7 +42,7 @@ public EducationLinkedAssignmentResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationLinkedAssignmentResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationLinkedAssignmentResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("url", Url);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationMediaResource.cs b/src/Microsoft.Graph/Generated/Models/EducationMediaResource.cs
index ad5b39d7d4e..9919393163b 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationMediaResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationMediaResource.cs
@@ -42,7 +42,7 @@ public EducationMediaResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationMediaResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationMediaResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fileUrl", FileUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationModule.cs b/src/Microsoft.Graph/Generated/Models/EducationModule.cs
index ba419bb3851..41e84bff0f3 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationModule.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationModule.cs
@@ -139,7 +139,7 @@ public string ResourcesFolderUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationModule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationModule();
         }
         /// <summary>
@@ -168,7 +168,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationModuleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationModuleCollectionResponse.cs
index 0a3d92f30c1..0b6467a0eff 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationModuleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationModuleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationModuleCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationModuleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationModuleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationModule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationModuleResource.cs b/src/Microsoft.Graph/Generated/Models/EducationModuleResource.cs
index b5ee36d3768..e17572dc08b 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationModuleResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationModuleResource.cs
@@ -35,7 +35,7 @@ public partial class EducationModuleResource : global::Microsoft.Graph.Models.En
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationModuleResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationModuleResource();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationResource>("resource", Resource);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationModuleResourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationModuleResourceCollectionResponse.cs
index b69c7d8a467..6453e48b5af 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationModuleResourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationModuleResourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationModuleResourceCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationModuleResourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationModuleResourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationModuleResource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationOnPremisesInfo.cs b/src/Microsoft.Graph/Generated/Models/EducationOnPremisesInfo.cs
index 0e4ff68be5f..45455680885 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationOnPremisesInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationOnPremisesInfo.cs
@@ -68,7 +68,7 @@ public EducationOnPremisesInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationOnPremisesInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationOnPremisesInfo();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("immutableId", ImmutableId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationOrganization.cs b/src/Microsoft.Graph/Generated/Models/EducationOrganization.cs
index 8827695b932..01d8a276e08 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationOrganization.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationOrganization.cs
@@ -73,7 +73,7 @@ public string ExternalSourceDetail
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationOrganization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationOutcome.cs b/src/Microsoft.Graph/Generated/Models/EducationOutcome.cs
index 790861d5c44..d09931163a0 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationOutcome.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationOutcome.cs
@@ -41,7 +41,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationOutcome CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("lastModifiedBy", LastModifiedBy);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationOutcomeCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationOutcomeCollectionResponse.cs
index 9ea502feed9..ec7017811df 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationOutcomeCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationOutcomeCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationOutcomeCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationOutcomeCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationOutcomeCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationOutcome>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationPointsOutcome.cs b/src/Microsoft.Graph/Generated/Models/EducationPointsOutcome.cs
index f1ef9a1dc5c..480b39435fe 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationPointsOutcome.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationPointsOutcome.cs
@@ -58,7 +58,7 @@ public EducationPointsOutcome() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationPointsOutcome CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationPointsOutcome();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationAssignmentPointsGrade>("points", Points);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationAssignmentPointsGrade>("publishedPoints", PublishedPoints);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationPowerPointResource.cs b/src/Microsoft.Graph/Generated/Models/EducationPowerPointResource.cs
index cbcca55377a..37a90fbaee5 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationPowerPointResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationPowerPointResource.cs
@@ -42,7 +42,7 @@ public EducationPowerPointResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationPowerPointResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationPowerPointResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fileUrl", FileUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationResource.cs b/src/Microsoft.Graph/Generated/Models/EducationResource.cs
index 06e617ad4c0..59662f33670 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationResource.cs
@@ -112,7 +112,7 @@ public EducationResource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -151,7 +151,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationRoot.cs b/src/Microsoft.Graph/Generated/Models/EducationRoot.cs
index b425379e6a2..c8e4de85b9c 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationRoot.cs
@@ -132,7 +132,7 @@ public EducationRoot()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationRoot();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationClass>("classes", Classes);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationUser>("me", Me);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationRubric.cs b/src/Microsoft.Graph/Generated/Models/EducationRubric.cs
index 15f9691d7c0..673c7f36070 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationRubric.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationRubric.cs
@@ -143,7 +143,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationRubric CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationRubric();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationItemBody>("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationRubricCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationRubricCollectionResponse.cs
index f5994bc77b4..942d63deebd 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationRubricCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationRubricCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationRubricCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationRubricCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationRubricCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationRubric>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationRubricOutcome.cs b/src/Microsoft.Graph/Generated/Models/EducationRubricOutcome.cs
index aac952dd535..b23edffb9e0 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationRubricOutcome.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationRubricOutcome.cs
@@ -90,7 +90,7 @@ public EducationRubricOutcome() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationRubricOutcome CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationRubricOutcome();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RubricQualityFeedbackModel>("publishedRubricQualityFeedback", PublishedRubricQualityFeedback);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RubricQualitySelectedColumnModel>("publishedRubricQualitySelectedLevels", PublishedRubricQualitySelectedLevels);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSchool.cs b/src/Microsoft.Graph/Generated/Models/EducationSchool.cs
index 99d4f10c020..5751994fcac 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSchool.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSchool.cs
@@ -250,7 +250,7 @@ public EducationSchool() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationSchool CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationSchool();
         }
         /// <summary>
@@ -283,7 +283,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PhysicalAddress>("address", Address);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AdministrativeUnit>("administrativeUnit", AdministrativeUnit);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSchoolCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationSchoolCollectionResponse.cs
index d942c76dd33..efd8621c5d2 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSchoolCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSchoolCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationSchoolCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationSchoolCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationSchoolCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationSchool>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationStudent.cs b/src/Microsoft.Graph/Generated/Models/EducationStudent.cs
index e29a65ab4ae..df214008683 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationStudent.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationStudent.cs
@@ -129,7 +129,7 @@ public EducationStudent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationStudent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationStudent();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateValue("birthDate", BirthDate);
             writer.WriteStringValue("externalId", ExternalId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EducationGender>("gender", Gender);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSubmission.cs b/src/Microsoft.Graph/Generated/Models/EducationSubmission.cs
index 59e85786169..e19a4bb7092 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSubmission.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSubmission.cs
@@ -269,7 +269,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationSubmission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationSubmission();
         }
         /// <summary>
@@ -308,7 +308,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationOutcome>("outcomes", Outcomes);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationSubmissionRecipient>("recipient", Recipient);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSubmissionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationSubmissionCollectionResponse.cs
index fac9842f2a1..bfa78b2d018 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSubmissionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSubmissionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationSubmissionCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationSubmissionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationSubmissionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationSubmission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSubmissionIndividualRecipient.cs b/src/Microsoft.Graph/Generated/Models/EducationSubmissionIndividualRecipient.cs
index 88c8622cfdc..32e875af453 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSubmissionIndividualRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSubmissionIndividualRecipient.cs
@@ -42,7 +42,7 @@ public EducationSubmissionIndividualRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationSubmissionIndividualRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationSubmissionIndividualRecipient();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userId", UserId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSubmissionRecipient.cs b/src/Microsoft.Graph/Generated/Models/EducationSubmissionRecipient.cs
index 69a5bf8dd0b..60be996affa 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSubmissionRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSubmissionRecipient.cs
@@ -52,7 +52,7 @@ public EducationSubmissionRecipient()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationSubmissionRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSubmissionResource.cs b/src/Microsoft.Graph/Generated/Models/EducationSubmissionResource.cs
index 10e12380570..449a561aa90 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSubmissionResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSubmissionResource.cs
@@ -51,7 +51,7 @@ public string AssignmentResourceUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationSubmissionResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationSubmissionResource();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("assignmentResourceUrl", AssignmentResourceUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationResource>("resource", Resource);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationSubmissionResourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationSubmissionResourceCollectionResponse.cs
index 7144ea4833c..4c86f21687a 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationSubmissionResourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationSubmissionResourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationSubmissionResourceCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationSubmissionResourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationSubmissionResourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationSubmissionResource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationTeacher.cs b/src/Microsoft.Graph/Generated/Models/EducationTeacher.cs
index 35c6c3b69bc..b334c28ac0a 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationTeacher.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationTeacher.cs
@@ -84,7 +84,7 @@ public EducationTeacher()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationTeacher CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationTeacher();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("externalId", ExternalId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("teacherNumber", TeacherNumber);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationTeamsAppResource.cs b/src/Microsoft.Graph/Generated/Models/EducationTeamsAppResource.cs
index a3e2f49fd19..8daca53213c 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationTeamsAppResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationTeamsAppResource.cs
@@ -90,7 +90,7 @@ public EducationTeamsAppResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationTeamsAppResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationTeamsAppResource();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appIconWebUrl", AppIconWebUrl);
             writer.WriteStringValue("appId", AppId);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationTerm.cs b/src/Microsoft.Graph/Generated/Models/EducationTerm.cs
index 1c9ef30e6b4..b808f11f0dc 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationTerm.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationTerm.cs
@@ -97,7 +97,7 @@ public EducationTerm()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EducationTerm CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationTerm();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateValue("endDate", EndDate);
             writer.WriteStringValue("externalId", ExternalId);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationUser.cs b/src/Microsoft.Graph/Generated/Models/EducationUser.cs
index 6a1bc369804..e61bb4aa608 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationUser.cs
@@ -577,7 +577,7 @@ public string UserType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationUser();
         }
         /// <summary>
@@ -634,7 +634,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("accountEnabled", AccountEnabled);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssignedLicense>("assignedLicenses", AssignedLicenses);
diff --git a/src/Microsoft.Graph/Generated/Models/EducationUserCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EducationUserCollectionResponse.cs
index 13bfc15a63f..b957b44f36e 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationUserCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationUserCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EducationUserCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationUserCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationUserCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EducationUser>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EducationWordResource.cs b/src/Microsoft.Graph/Generated/Models/EducationWordResource.cs
index 14d75dd905d..fdd400a20f1 100644
--- a/src/Microsoft.Graph/Generated/Models/EducationWordResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/EducationWordResource.cs
@@ -42,7 +42,7 @@ public EducationWordResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EducationWordResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EducationWordResource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fileUrl", FileUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EmailAddress.cs b/src/Microsoft.Graph/Generated/Models/EmailAddress.cs
index a3365cdda21..e7119181ba8 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailAddress.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailAddress.cs
@@ -84,7 +84,7 @@ public EmailAddress()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EmailAddress CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailAddress();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("address", Address);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethod.cs
index 682bdab423b..2f219d94c8d 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethod.cs
@@ -42,7 +42,7 @@ public EmailAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmailAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailAuthenticationMethod();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("emailAddress", EmailAddress);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodCollectionResponse.cs
index 75143fe7339..07764b56709 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EmailAuthenticationMethodCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmailAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EmailAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodConfiguration.cs
index 5700615cbba..4b4e62e7853 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailAuthenticationMethodConfiguration.cs
@@ -48,7 +48,7 @@ public EmailAuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmailAuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailAuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalEmailOtpState>("allowExternalIdToUseEmailOtp", AllowExternalIdToUseEmailOtp);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodTarget>("includeTargets", IncludeTargets);
diff --git a/src/Microsoft.Graph/Generated/Models/EmailFileAssessmentRequest.cs b/src/Microsoft.Graph/Generated/Models/EmailFileAssessmentRequest.cs
index e6d5a93003f..78cb22bcff3 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailFileAssessmentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailFileAssessmentRequest.cs
@@ -64,7 +64,7 @@ public EmailFileAssessmentRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmailFileAssessmentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailFileAssessmentRequest();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("contentData", ContentData);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MailDestinationRoutingReason>("destinationRoutingReason", DestinationRoutingReason);
diff --git a/src/Microsoft.Graph/Generated/Models/EmailIdentity.cs b/src/Microsoft.Graph/Generated/Models/EmailIdentity.cs
index 9d286edf1a3..6d8bf75c7d7 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailIdentity.cs
@@ -42,7 +42,7 @@ public EmailIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmailIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailIdentity();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("email", Email);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EmailPayloadDetail.cs b/src/Microsoft.Graph/Generated/Models/EmailPayloadDetail.cs
index b401b265cc2..412bd15edb5 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailPayloadDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailPayloadDetail.cs
@@ -80,7 +80,7 @@ public EmailPayloadDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmailPayloadDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailPayloadDetail();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fromEmail", FromEmail);
             writer.WriteStringValue("fromName", FromName);
diff --git a/src/Microsoft.Graph/Generated/Models/EmailSettings.cs b/src/Microsoft.Graph/Generated/Models/EmailSettings.cs
index 91410281fe7..6ae1187dcc2 100644
--- a/src/Microsoft.Graph/Generated/Models/EmailSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmailSettings.cs
@@ -74,7 +74,7 @@ public EmailSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EmailSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmailSettings();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("senderDomain", SenderDomain);
             writer.WriteBoolValue("useCompanyBranding", UseCompanyBranding);
diff --git a/src/Microsoft.Graph/Generated/Models/EmergencyCallEvent.cs b/src/Microsoft.Graph/Generated/Models/EmergencyCallEvent.cs
index cbff789c7e5..f033f67dba8 100644
--- a/src/Microsoft.Graph/Generated/Models/EmergencyCallEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmergencyCallEvent.cs
@@ -67,7 +67,7 @@ public string PolicyName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmergencyCallEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmergencyCallEvent();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmergencyCallerInfo>("callerInfo", CallerInfo);
             writer.WriteStringValue("emergencyNumberDialed", EmergencyNumberDialed);
diff --git a/src/Microsoft.Graph/Generated/Models/EmergencyCallerInfo.cs b/src/Microsoft.Graph/Generated/Models/EmergencyCallerInfo.cs
index b760d9d5b67..793c3fda2f3 100644
--- a/src/Microsoft.Graph/Generated/Models/EmergencyCallerInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmergencyCallerInfo.cs
@@ -132,7 +132,7 @@ public EmergencyCallerInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EmergencyCallerInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmergencyCallerInfo();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Location>("location", Location);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/EmployeeExperience.cs b/src/Microsoft.Graph/Generated/Models/EmployeeExperience.cs
index 83e1795f23a..d98d8fe2025 100644
--- a/src/Microsoft.Graph/Generated/Models/EmployeeExperience.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmployeeExperience.cs
@@ -117,7 +117,7 @@ public EmployeeExperience()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EmployeeExperience CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmployeeExperience();
         }
         /// <summary>
@@ -141,7 +141,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Community>("communities", Communities);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EngagementAsyncOperation>("engagementAsyncOperations", EngagementAsyncOperations);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LearningCourseActivity>("learningCourseActivities", LearningCourseActivities);
diff --git a/src/Microsoft.Graph/Generated/Models/EmployeeExperienceUser.cs b/src/Microsoft.Graph/Generated/Models/EmployeeExperienceUser.cs
index 881df4820d9..6518b856e6c 100644
--- a/src/Microsoft.Graph/Generated/Models/EmployeeExperienceUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmployeeExperienceUser.cs
@@ -35,7 +35,7 @@ public partial class EmployeeExperienceUser : global::Microsoft.Graph.Models.Ent
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EmployeeExperienceUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmployeeExperienceUser();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LearningCourseActivity>("learningCourseActivities", LearningCourseActivities);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EmployeeOrgData.cs b/src/Microsoft.Graph/Generated/Models/EmployeeOrgData.cs
index 76a1c6a850c..c66cb83f4b5 100644
--- a/src/Microsoft.Graph/Generated/Models/EmployeeOrgData.cs
+++ b/src/Microsoft.Graph/Generated/Models/EmployeeOrgData.cs
@@ -84,7 +84,7 @@ public EmployeeOrgData()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EmployeeOrgData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EmployeeOrgData();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("costCenter", CostCenter);
             writer.WriteStringValue("division", Division);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/EndUserNotification.cs b/src/Microsoft.Graph/Generated/Models/EndUserNotification.cs
index 578140296aa..3386c5f8e90 100644
--- a/src/Microsoft.Graph/Generated/Models/EndUserNotification.cs
+++ b/src/Microsoft.Graph/Generated/Models/EndUserNotification.cs
@@ -145,7 +145,7 @@ public List<string> SupportedLocales
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EndUserNotification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EndUserNotification();
         }
         /// <summary>
@@ -175,7 +175,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailIdentity>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/EndUserNotificationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EndUserNotificationCollectionResponse.cs
index ce1e2d69dd5..003f7f04b05 100644
--- a/src/Microsoft.Graph/Generated/Models/EndUserNotificationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EndUserNotificationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EndUserNotificationCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EndUserNotificationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EndUserNotificationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EndUserNotification>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetail.cs b/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetail.cs
index c8f04106b27..da812999a8b 100644
--- a/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetail.cs
@@ -105,7 +105,7 @@ public string Subject
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EndUserNotificationDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EndUserNotificationDetail();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("emailContent", EmailContent);
             writer.WriteBoolValue("isDefaultLangauge", IsDefaultLangauge);
diff --git a/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetailCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetailCollectionResponse.cs
index 9fb3051e1b2..8e9b4a2d0c0 100644
--- a/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetailCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EndUserNotificationDetailCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EndUserNotificationDetailCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EndUserNotificationDetailCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EndUserNotificationDetailCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EndUserNotificationDetail>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EndUserNotificationSetting.cs b/src/Microsoft.Graph/Generated/Models/EndUserNotificationSetting.cs
index ae7cc40f826..cd835295063 100644
--- a/src/Microsoft.Graph/Generated/Models/EndUserNotificationSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/EndUserNotificationSetting.cs
@@ -80,7 +80,7 @@ public EndUserNotificationSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EndUserNotificationSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -109,7 +109,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EndUserNotificationPreference>("notificationPreference", NotificationPreference);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PositiveReinforcementNotification>("positiveReinforcement", PositiveReinforcement);
diff --git a/src/Microsoft.Graph/Generated/Models/Endpoint.cs b/src/Microsoft.Graph/Generated/Models/Endpoint.cs
index 2b679ecd37d..31159ebe4e3 100644
--- a/src/Microsoft.Graph/Generated/Models/Endpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/Endpoint.cs
@@ -106,7 +106,7 @@ public Endpoint() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Endpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Endpoint();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("capability", Capability);
             writer.WriteStringValue("providerId", ProviderId);
diff --git a/src/Microsoft.Graph/Generated/Models/EndpointCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EndpointCollectionResponse.cs
index 2fe045cd8c3..b2424f0d01d 100644
--- a/src/Microsoft.Graph/Generated/Models/EndpointCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EndpointCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EndpointCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EndpointCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EndpointCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Endpoint>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperation.cs b/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperation.cs
index 33ae7747e21..07f94674242 100644
--- a/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperation.cs
@@ -42,7 +42,7 @@ public string ResourceId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EngagementAsyncOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EngagementAsyncOperation();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EngagementAsyncOperationType>("operationType", OperationType);
             writer.WriteStringValue("resourceId", ResourceId);
diff --git a/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperationCollectionResponse.cs
index 62b72032ee8..e283b1cb3ad 100644
--- a/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EngagementAsyncOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EngagementAsyncOperationCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EngagementAsyncOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EngagementAsyncOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EngagementAsyncOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignment.cs b/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignment.cs
index 9ab2933a8ae..90f18bc4c38 100644
--- a/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignment.cs
@@ -36,7 +36,7 @@ public partial class EnrollmentConfigurationAssignment : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignmentCollectionResponse.cs
index 6666c3a9deb..852936f21ce 100644
--- a/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EnrollmentConfigurationAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EnrollmentConfigurationAssignmentCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EnrollmentConfigurationAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EnrollmentConfigurationAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.EnrollmentConfigurationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EnrollmentTroubleshootingEvent.cs b/src/Microsoft.Graph/Generated/Models/EnrollmentTroubleshootingEvent.cs
index 180c576c711..3d273dfc726 100644
--- a/src/Microsoft.Graph/Generated/Models/EnrollmentTroubleshootingEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/EnrollmentTroubleshootingEvent.cs
@@ -128,7 +128,7 @@ public string UserId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EnrollmentTroubleshootingEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EnrollmentTroubleshootingEvent();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("deviceId", DeviceId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DeviceEnrollmentType>("enrollmentType", EnrollmentType);
diff --git a/src/Microsoft.Graph/Generated/Models/EnterpriseCodeSigningCertificate.cs b/src/Microsoft.Graph/Generated/Models/EnterpriseCodeSigningCertificate.cs
index 7486cb3b2cd..c538031bf8a 100644
--- a/src/Microsoft.Graph/Generated/Models/EnterpriseCodeSigningCertificate.cs
+++ b/src/Microsoft.Graph/Generated/Models/EnterpriseCodeSigningCertificate.cs
@@ -117,7 +117,7 @@ public DateTimeOffset? UploadDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EnterpriseCodeSigningCertificate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EnterpriseCodeSigningCertificate();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("content", Content);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/EntitlementManagement.cs b/src/Microsoft.Graph/Generated/Models/EntitlementManagement.cs
index a06544baf84..60cd460b352 100644
--- a/src/Microsoft.Graph/Generated/Models/EntitlementManagement.cs
+++ b/src/Microsoft.Graph/Generated/Models/EntitlementManagement.cs
@@ -211,7 +211,7 @@ public partial class EntitlementManagement : global::Microsoft.Graph.Models.Enti
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EntitlementManagement CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EntitlementManagement();
         }
         /// <summary>
@@ -242,7 +242,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Approval>("accessPackageAssignmentApprovals", AccessPackageAssignmentApprovals);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessPackage>("accessPackages", AccessPackages);
diff --git a/src/Microsoft.Graph/Generated/Models/EntitlementManagementSchedule.cs b/src/Microsoft.Graph/Generated/Models/EntitlementManagementSchedule.cs
index ceac4f65995..e499470f008 100644
--- a/src/Microsoft.Graph/Generated/Models/EntitlementManagementSchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/EntitlementManagementSchedule.cs
@@ -90,7 +90,7 @@ public EntitlementManagementSchedule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EntitlementManagementSchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EntitlementManagementSchedule();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExpirationPattern>("expiration", Expiration);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PatternedRecurrence>("recurrence", Recurrence);
diff --git a/src/Microsoft.Graph/Generated/Models/EntitlementManagementSettings.cs b/src/Microsoft.Graph/Generated/Models/EntitlementManagementSettings.cs
index d714db91f4b..41675163c26 100644
--- a/src/Microsoft.Graph/Generated/Models/EntitlementManagementSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/EntitlementManagementSettings.cs
@@ -31,7 +31,7 @@ public TimeSpan? DurationUntilExternalUserDeletedAfterBlocked
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EntitlementManagementSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EntitlementManagementSettings();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteTimeSpanValue("durationUntilExternalUserDeletedAfterBlocked", DurationUntilExternalUserDeletedAfterBlocked);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AccessPackageExternalUserLifecycleAction>("externalUserLifecycleAction", ExternalUserLifecycleAction);
diff --git a/src/Microsoft.Graph/Generated/Models/Entity.cs b/src/Microsoft.Graph/Generated/Models/Entity.cs
index b9cc2e0a8ff..ac7c78944fd 100644
--- a/src/Microsoft.Graph/Generated/Models/Entity.cs
+++ b/src/Microsoft.Graph/Generated/Models/Entity.cs
@@ -76,7 +76,7 @@ public Entity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Entity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -1108,7 +1108,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/EnumeratedDeviceRegistrationMembership.cs b/src/Microsoft.Graph/Generated/Models/EnumeratedDeviceRegistrationMembership.cs
index b486a7d3131..dd4995ec7e2 100644
--- a/src/Microsoft.Graph/Generated/Models/EnumeratedDeviceRegistrationMembership.cs
+++ b/src/Microsoft.Graph/Generated/Models/EnumeratedDeviceRegistrationMembership.cs
@@ -58,7 +58,7 @@ public EnumeratedDeviceRegistrationMembership() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EnumeratedDeviceRegistrationMembership CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EnumeratedDeviceRegistrationMembership();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("groups", Groups);
             writer.WriteCollectionOfPrimitiveValues<string>("users", Users);
diff --git a/src/Microsoft.Graph/Generated/Models/Event.cs b/src/Microsoft.Graph/Generated/Models/Event.cs
index 6fc1fc979e3..c0a4c743bea 100644
--- a/src/Microsoft.Graph/Generated/Models/Event.cs
+++ b/src/Microsoft.Graph/Generated/Models/Event.cs
@@ -560,7 +560,7 @@ public Event() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Event CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Event();
         }
         /// <summary>
@@ -623,7 +623,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowNewTimeProposals", AllowNewTimeProposals);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Attachment>("attachments", Attachments);
diff --git a/src/Microsoft.Graph/Generated/Models/EventCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/EventCollectionResponse.cs
index a1680dd0b6b..c400112e5e2 100644
--- a/src/Microsoft.Graph/Generated/Models/EventCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EventCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EventCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EventCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EventCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EventMessage.cs b/src/Microsoft.Graph/Generated/Models/EventMessage.cs
index 16a67037c81..ffc2568a1bd 100644
--- a/src/Microsoft.Graph/Generated/Models/EventMessage.cs
+++ b/src/Microsoft.Graph/Generated/Models/EventMessage.cs
@@ -136,7 +136,7 @@ public EventMessage() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EventMessage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("endDateTime", EndDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Event>("event", Event);
diff --git a/src/Microsoft.Graph/Generated/Models/EventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/EventMessageDetail.cs
index a938d9e4d02..4eaab0803dc 100644
--- a/src/Microsoft.Graph/Generated/Models/EventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/EventMessageDetail.cs
@@ -52,7 +52,7 @@ public EventMessageDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.EventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/EventMessageRequest.cs b/src/Microsoft.Graph/Generated/Models/EventMessageRequest.cs
index b38ce5f0a9c..5b7ad4a17f6 100644
--- a/src/Microsoft.Graph/Generated/Models/EventMessageRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/EventMessageRequest.cs
@@ -92,7 +92,7 @@ public EventMessageRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EventMessageRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EventMessageRequest();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowNewTimeProposals", AllowNewTimeProposals);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MeetingRequestType>("meetingRequestType", MeetingRequestType);
diff --git a/src/Microsoft.Graph/Generated/Models/EventMessageResponse.cs b/src/Microsoft.Graph/Generated/Models/EventMessageResponse.cs
index fc0fba263fc..bc874f564fb 100644
--- a/src/Microsoft.Graph/Generated/Models/EventMessageResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/EventMessageResponse.cs
@@ -48,7 +48,7 @@ public EventMessageResponse() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.EventMessageResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.EventMessageResponse();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("proposedNewTime", ProposedNewTime);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ResponseType>("responseType", ResponseType);
diff --git a/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicy.cs b/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicy.cs
index 2663711a287..926ae2ab53e 100644
--- a/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicy.cs
@@ -74,7 +74,7 @@ public ExchangeProtectionPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExchangeProtectionPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExchangeProtectionPolicy();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxProtectionRule>("mailboxInclusionRules", MailboxInclusionRules);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxProtectionUnit>("mailboxProtectionUnits", MailboxProtectionUnits);
diff --git a/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicyCollectionResponse.cs
index 02086c81a14..3c7365b9469 100644
--- a/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExchangeProtectionPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExchangeProtectionPolicyCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExchangeProtectionPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExchangeProtectionPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExchangeProtectionPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSession.cs b/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSession.cs
index 0d71a8ae7d8..435c2be4032 100644
--- a/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSession.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSession.cs
@@ -74,7 +74,7 @@ public ExchangeRestoreSession() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExchangeRestoreSession CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExchangeRestoreSession();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact>("granularMailboxRestoreArtifacts", GranularMailboxRestoreArtifacts);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxRestoreArtifact>("mailboxRestoreArtifacts", MailboxRestoreArtifacts);
diff --git a/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSessionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSessionCollectionResponse.cs
index 1e840857386..7621c924514 100644
--- a/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSessionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExchangeRestoreSessionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExchangeRestoreSessionCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExchangeRestoreSessionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExchangeRestoreSessionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExchangeRestoreSession>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExcludeTarget.cs b/src/Microsoft.Graph/Generated/Models/ExcludeTarget.cs
index 9650153c166..55b255fb97e 100644
--- a/src/Microsoft.Graph/Generated/Models/ExcludeTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExcludeTarget.cs
@@ -74,7 +74,7 @@ public ExcludeTarget()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExcludeTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExcludeTarget();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AuthenticationMethodTargetType>("targetType", TargetType);
diff --git a/src/Microsoft.Graph/Generated/Models/ExclusionGroupAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/ExclusionGroupAssignmentTarget.cs
index 88a0ccb4a78..875887a068f 100644
--- a/src/Microsoft.Graph/Generated/Models/ExclusionGroupAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExclusionGroupAssignmentTarget.cs
@@ -27,7 +27,7 @@ public ExclusionGroupAssignmentTarget() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExclusionGroupAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExclusionGroupAssignmentTarget();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ExpirationPattern.cs b/src/Microsoft.Graph/Generated/Models/ExpirationPattern.cs
index e76af3b0674..ad352a7ebcc 100644
--- a/src/Microsoft.Graph/Generated/Models/ExpirationPattern.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExpirationPattern.cs
@@ -70,7 +70,7 @@ public ExpirationPattern()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExpirationPattern CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExpirationPattern();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeSpanValue("duration", Duration);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ExpressionInputObject.cs b/src/Microsoft.Graph/Generated/Models/ExpressionInputObject.cs
index e139a56fa1d..7ce4e4e1adb 100644
--- a/src/Microsoft.Graph/Generated/Models/ExpressionInputObject.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExpressionInputObject.cs
@@ -84,7 +84,7 @@ public ExpressionInputObject()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExpressionInputObject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExpressionInputObject();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ObjectDefinition>("definition", Definition);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.StringKeyObjectValuePair>("properties", Properties);
diff --git a/src/Microsoft.Graph/Generated/Models/Extension.cs b/src/Microsoft.Graph/Generated/Models/Extension.cs
index 7b719cb8701..0de110b5340 100644
--- a/src/Microsoft.Graph/Generated/Models/Extension.cs
+++ b/src/Microsoft.Graph/Generated/Models/Extension.cs
@@ -19,7 +19,7 @@ public partial class Extension : global::Microsoft.Graph.Models.Entity, IParsabl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Extension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -43,7 +43,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ExtensionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExtensionCollectionResponse.cs
index fd900f17dd1..c613dac0651 100644
--- a/src/Microsoft.Graph/Generated/Models/ExtensionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExtensionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExtensionCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExtensionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExtensionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Extension>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExtensionProperty.cs b/src/Microsoft.Graph/Generated/Models/ExtensionProperty.cs
index 9e2d61f3263..7c5f1a9b85a 100644
--- a/src/Microsoft.Graph/Generated/Models/ExtensionProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExtensionProperty.cs
@@ -102,7 +102,7 @@ public ExtensionProperty() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExtensionProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExtensionProperty();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appDisplayName", AppDisplayName);
             writer.WriteStringValue("dataType", DataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ExtensionPropertyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExtensionPropertyCollectionResponse.cs
index 66dc290008d..ba0db7ad6bb 100644
--- a/src/Microsoft.Graph/Generated/Models/ExtensionPropertyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExtensionPropertyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExtensionPropertyCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExtensionPropertyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExtensionPropertyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExtensionSchemaProperty.cs b/src/Microsoft.Graph/Generated/Models/ExtensionSchemaProperty.cs
index 81fe594fe76..cbeab66f72e 100644
--- a/src/Microsoft.Graph/Generated/Models/ExtensionSchemaProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExtensionSchemaProperty.cs
@@ -84,7 +84,7 @@ public ExtensionSchemaProperty()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExtensionSchemaProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExtensionSchemaProperty();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Acl.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Acl.cs
index 02f0d5b2f4a..efd87585f15 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Acl.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Acl.cs
@@ -80,7 +80,7 @@ public Acl()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.Acl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.Acl();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalConnectors.AccessType>("accessType", AccessType);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalConnectors.AclType>("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ActivitySettings.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ActivitySettings.cs
index 8e4cd507e03..c60fc9ae112 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ActivitySettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ActivitySettings.cs
@@ -68,7 +68,7 @@ public ActivitySettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.ActivitySettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ActivitySettings();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.UrlToItemResolverBase>("urlToItemResolvers", UrlToItemResolvers);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Configuration.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Configuration.cs
index 9f1fadcf33a..e4dfc450b2d 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Configuration.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Configuration.cs
@@ -68,7 +68,7 @@ public Configuration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.Configuration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.Configuration();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("authorizedAppIds", AuthorizedAppIds);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperation.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperation.cs
index 74eaa6374cc..daed9c98fff 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperation.cs
@@ -41,7 +41,7 @@ public partial class ConnectionOperation : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperationStatus>("status", Status);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperationCollectionResponse.cs
index 3d21d2bd137..52b021df5ac 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ConnectionOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ConnectionOperationCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ConnectionOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/DisplayTemplate.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/DisplayTemplate.cs
index 46ae2b66661..9a533309cb7 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/DisplayTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/DisplayTemplate.cs
@@ -106,7 +106,7 @@ public DisplayTemplate()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.DisplayTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.DisplayTemplate();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteObjectValue<UntypedNode>("layout", Layout);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/External.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/External.cs
index 421bd6a7640..59a102821eb 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/External.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/External.cs
@@ -68,7 +68,7 @@ public External()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.External CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.External();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection>("connections", Connections);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivity.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivity.cs
index eb40b42fb51..1208ef94c25 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivity.cs
@@ -47,7 +47,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -74,7 +74,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalConnectors.Identity>("performedBy", PerformedBy);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityCollectionResponse.cs
index 816e5348463..23e3683526a 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExternalActivityCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityResult.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityResult.cs
index 5dccaf1a02e..4e539dc0025 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalActivityResult.cs
@@ -35,7 +35,7 @@ public partial class ExternalActivityResult : global::Microsoft.Graph.Models.Ext
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivityResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivityResult();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnection.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnection.cs
index e0fd7f4dbf4..16e990ae906 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnection.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnection.cs
@@ -185,7 +185,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection();
         }
         /// <summary>
@@ -215,7 +215,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalConnectors.ActivitySettings>("activitySettings", ActivitySettings);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalConnectors.Configuration>("configuration", Configuration);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnectionCollectionResponse.cs
index 8a310d9a37d..46dbb627f6c 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalConnectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExternalConnectionCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalConnection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroup.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroup.cs
index 31263afb9e7..6c0c8f845c4 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroup.cs
@@ -67,7 +67,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroupCollectionResponse.cs
index 8bdebd6f32a..1d075194520 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalGroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExternalGroupCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalGroup>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItem.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItem.cs
index d04bdad181b..7e1972c4c39 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItem.cs
@@ -83,7 +83,7 @@ public partial class ExternalItem : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.Acl>("acl", Acl);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalActivity>("activities", Activities);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemCollectionResponse.cs
index adcf8b92eb3..9801a6733fa 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExternalItemCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ExternalItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.ExternalItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemContent.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemContent.cs
index 742569b40b0..08ae2624906 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ExternalItemContent.cs
@@ -74,7 +74,7 @@ public ExternalItemContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.ExternalItemContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ExternalItemContent();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalConnectors.ExternalItemContentType>("type", Type);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Identity.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Identity.cs
index d2c46e3d731..47934593180 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Identity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Identity.cs
@@ -25,7 +25,7 @@ public partial class Identity : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.Identity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.Identity();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalConnectors.IdentityType>("type", Type);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/IdentityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/IdentityCollectionResponse.cs
index 8289c270b10..d66099274ae 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/IdentityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/IdentityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IdentityCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.IdentityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.IdentityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.Identity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ItemIdResolver.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ItemIdResolver.cs
index def4ffe0092..3162951dbf5 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ItemIdResolver.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/ItemIdResolver.cs
@@ -58,7 +58,7 @@ public ItemIdResolver() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.ItemIdResolver CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.ItemIdResolver();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("itemId", ItemId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalConnectors.UrlMatchInfo>("urlMatchInfo", UrlMatchInfo);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Properties.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Properties.cs
index d804c7262f5..e2e95394dcf 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Properties.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Properties.cs
@@ -52,7 +52,7 @@ public Properties()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.Properties CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.Properties();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Property.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Property.cs
index 965e476a0c8..92f01c6a754 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Property.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Property.cs
@@ -130,7 +130,7 @@ public Property()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.Property CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.Property();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("aliases", Aliases);
             writer.WriteBoolValue("isQueryable", IsQueryable);
             writer.WriteBoolValue("isRefinable", IsRefinable);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/PropertyRule.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/PropertyRule.cs
index 5a5c713554c..bd1b49062a0 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/PropertyRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/PropertyRule.cs
@@ -96,7 +96,7 @@ public PropertyRule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.PropertyRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.PropertyRule();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExternalConnectors.RuleOperation>("operation", Operation);
             writer.WriteStringValue("property", Property);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Schema.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Schema.cs
index f1f978fc912..359218b29f3 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Schema.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/Schema.cs
@@ -51,7 +51,7 @@ public string BaseType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalConnectors.Schema CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.Schema();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("baseType", BaseType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.Property>("properties", Properties);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/SearchSettings.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/SearchSettings.cs
index d9a8450f6a6..5f0799b2d59 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/SearchSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/SearchSettings.cs
@@ -68,7 +68,7 @@ public SearchSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.SearchSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.SearchSettings();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalConnectors.DisplayTemplate>("searchResultTemplates", SearchResultTemplates);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlMatchInfo.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlMatchInfo.cs
index 946e437f03f..02b01b6e826 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlMatchInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlMatchInfo.cs
@@ -84,7 +84,7 @@ public UrlMatchInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.UrlMatchInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalConnectors.UrlMatchInfo();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("baseUrls", BaseUrls);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("urlPattern", UrlPattern);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlToItemResolverBase.cs b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlToItemResolverBase.cs
index 1240829529f..93060d23bde 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlToItemResolverBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalConnectors/UrlToItemResolverBase.cs
@@ -58,7 +58,7 @@ public UrlToItemResolverBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalConnectors.UrlToItemResolverBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -84,7 +84,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("priority", Priority);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalDomainFederation.cs b/src/Microsoft.Graph/Generated/Models/ExternalDomainFederation.cs
index e15929a2639..b744ba5ecec 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalDomainFederation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalDomainFederation.cs
@@ -74,7 +74,7 @@ public ExternalDomainFederation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalDomainFederation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalDomainFederation();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("domainName", DomainName);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalDomainName.cs b/src/Microsoft.Graph/Generated/Models/ExternalDomainName.cs
index 2069e3f16a9..432f1991a84 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalDomainName.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalDomainName.cs
@@ -19,7 +19,7 @@ public partial class ExternalDomainName : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalDomainName CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalDomainName();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalLink.cs b/src/Microsoft.Graph/Generated/Models/ExternalLink.cs
index ef1a7de3f0e..36058741c61 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalLink.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalLink.cs
@@ -68,7 +68,7 @@ public ExternalLink()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExternalLink CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalLink();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("href", Href);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalSponsors.cs b/src/Microsoft.Graph/Generated/Models/ExternalSponsors.cs
index 037cc6c54ef..a82949437c5 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalSponsors.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalSponsors.cs
@@ -26,7 +26,7 @@ public ExternalSponsors() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalSponsors CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalSponsors();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlow.cs b/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlow.cs
index ed10b1e9529..2ed3a22e7ea 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlow.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlow.cs
@@ -122,7 +122,7 @@ public ExternalUsersSelfServiceSignUpEventsFlow() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalUsersSelfServiceSignUpEventsFlow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalUsersSelfServiceSignUpEventsFlow();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAttributeCollectionHandler>("onAttributeCollection", OnAttributeCollection);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAttributeCollectionStartHandler>("onAttributeCollectionStart", OnAttributeCollectionStart);
diff --git a/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlowCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlowCollectionResponse.cs
index c025b1830ce..aac96ac669a 100644
--- a/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlowCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExternalUsersSelfServiceSignUpEventsFlowCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ExternalUsersSelfServiceSignUpEventsFlowCollectionResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ExternalUsersSelfServiceSignUpEventsFlowCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExternalUsersSelfServiceSignUpEventsFlowCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalUsersSelfServiceSignUpEventsFlow>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ExtractSensitivityLabelsResult.cs b/src/Microsoft.Graph/Generated/Models/ExtractSensitivityLabelsResult.cs
index 17095892797..ac852f09a48 100644
--- a/src/Microsoft.Graph/Generated/Models/ExtractSensitivityLabelsResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/ExtractSensitivityLabelsResult.cs
@@ -68,7 +68,7 @@ public ExtractSensitivityLabelsResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ExtractSensitivityLabelsResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ExtractSensitivityLabelsResult();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SensitivityLabelAssignment>("labels", Labels);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/FallbackToMicrosoftProviderOnError.cs b/src/Microsoft.Graph/Generated/Models/FallbackToMicrosoftProviderOnError.cs
index 5717053b714..be44091ed3f 100644
--- a/src/Microsoft.Graph/Generated/Models/FallbackToMicrosoftProviderOnError.cs
+++ b/src/Microsoft.Graph/Generated/Models/FallbackToMicrosoftProviderOnError.cs
@@ -26,7 +26,7 @@ public FallbackToMicrosoftProviderOnError() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FallbackToMicrosoftProviderOnError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FallbackToMicrosoftProviderOnError();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicy.cs b/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicy.cs
index ac31312e254..e864a2f4a45 100644
--- a/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicy.cs
@@ -85,7 +85,7 @@ public bool? IsEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FeatureRolloutPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FeatureRolloutPolicy();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("appliesTo", AppliesTo);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicyCollectionResponse.cs
index 2462fb10f7b..e70e9f23624 100644
--- a/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/FeatureRolloutPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class FeatureRolloutPolicyCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FeatureRolloutPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FeatureRolloutPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FeatureRolloutPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/FeatureTarget.cs b/src/Microsoft.Graph/Generated/Models/FeatureTarget.cs
index e93ab404b20..227223afcc2 100644
--- a/src/Microsoft.Graph/Generated/Models/FeatureTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/FeatureTarget.cs
@@ -74,7 +74,7 @@ public FeatureTarget()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FeatureTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FeatureTarget();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.FeatureTargetType>("targetType", TargetType);
diff --git a/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredential.cs b/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredential.cs
index 569ad9f007c..55059069b4e 100644
--- a/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredential.cs
+++ b/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredential.cs
@@ -99,7 +99,7 @@ public string Subject
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FederatedIdentityCredential CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FederatedIdentityCredential();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("audiences", Audiences);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredentialCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredentialCollectionResponse.cs
index 8cc7d4d82b5..9c5902583f3 100644
--- a/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredentialCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/FederatedIdentityCredentialCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class FederatedIdentityCredentialCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FederatedIdentityCredentialCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FederatedIdentityCredentialCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FederatedIdentityCredential>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethod.cs
index b2d1b0dcc08..bf740f825d4 100644
--- a/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethod.cs
@@ -102,7 +102,7 @@ public Fido2AuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Fido2AuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Fido2AuthenticationMethod();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("aaGuid", AaGuid);
             writer.WriteCollectionOfPrimitiveValues<string>("attestationCertificates", AttestationCertificates);
diff --git a/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodCollectionResponse.cs
index 5025bcc1998..7d47c165198 100644
--- a/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class Fido2AuthenticationMethodCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Fido2AuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Fido2AuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Fido2AuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodConfiguration.cs
index d8c8fefd89e..f356c33806c 100644
--- a/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Fido2AuthenticationMethodConfiguration.cs
@@ -70,7 +70,7 @@ public Fido2AuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Fido2AuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Fido2AuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodTarget>("includeTargets", IncludeTargets);
             writer.WriteBoolValue("isAttestationEnforced", IsAttestationEnforced);
diff --git a/src/Microsoft.Graph/Generated/Models/Fido2CombinationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Fido2CombinationConfiguration.cs
index 40a36124679..67cc76e1c0b 100644
--- a/src/Microsoft.Graph/Generated/Models/Fido2CombinationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Fido2CombinationConfiguration.cs
@@ -42,7 +42,7 @@ public Fido2CombinationConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Fido2CombinationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Fido2CombinationConfiguration();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("allowedAAGUIDs", AllowedAAGUIDs);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Fido2KeyRestrictions.cs b/src/Microsoft.Graph/Generated/Models/Fido2KeyRestrictions.cs
index 3ccb2c0d56c..2f01126af65 100644
--- a/src/Microsoft.Graph/Generated/Models/Fido2KeyRestrictions.cs
+++ b/src/Microsoft.Graph/Generated/Models/Fido2KeyRestrictions.cs
@@ -80,7 +80,7 @@ public Fido2KeyRestrictions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Fido2KeyRestrictions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Fido2KeyRestrictions();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("aaGuids", AaGuids);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Fido2RestrictionEnforcementType>("enforcementType", EnforcementType);
             writer.WriteBoolValue("isEnforced", IsEnforced);
diff --git a/src/Microsoft.Graph/Generated/Models/FieldValueSet.cs b/src/Microsoft.Graph/Generated/Models/FieldValueSet.cs
index 1dde265ed21..142530a3441 100644
--- a/src/Microsoft.Graph/Generated/Models/FieldValueSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/FieldValueSet.cs
@@ -19,7 +19,7 @@ public partial class FieldValueSet : global::Microsoft.Graph.Models.Entity, IPar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FieldValueSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FieldValueSet();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/FileAssessmentRequest.cs b/src/Microsoft.Graph/Generated/Models/FileAssessmentRequest.cs
index 683fce0dd3c..37079dd8872 100644
--- a/src/Microsoft.Graph/Generated/Models/FileAssessmentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileAssessmentRequest.cs
@@ -58,7 +58,7 @@ public FileAssessmentRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FileAssessmentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileAssessmentRequest();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("contentData", ContentData);
             writer.WriteStringValue("fileName", FileName);
diff --git a/src/Microsoft.Graph/Generated/Models/FileAttachment.cs b/src/Microsoft.Graph/Generated/Models/FileAttachment.cs
index bad4d648487..1f4b42eb475 100644
--- a/src/Microsoft.Graph/Generated/Models/FileAttachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileAttachment.cs
@@ -74,7 +74,7 @@ public FileAttachment() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FileAttachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileAttachment();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("contentBytes", ContentBytes);
             writer.WriteStringValue("contentId", ContentId);
diff --git a/src/Microsoft.Graph/Generated/Models/FileEncryptionInfo.cs b/src/Microsoft.Graph/Generated/Models/FileEncryptionInfo.cs
index ac8e14a68ec..45bec9d4b7b 100644
--- a/src/Microsoft.Graph/Generated/Models/FileEncryptionInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileEncryptionInfo.cs
@@ -165,7 +165,7 @@ public FileEncryptionInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FileEncryptionInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileEncryptionInfo();
         }
         /// <summary>
@@ -192,7 +192,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("encryptionKey", EncryptionKey);
             writer.WriteByteArrayValue("fileDigest", FileDigest);
             writer.WriteStringValue("fileDigestAlgorithm", FileDigestAlgorithm);
diff --git a/src/Microsoft.Graph/Generated/Models/FileHash.cs b/src/Microsoft.Graph/Generated/Models/FileHash.cs
index 84c0da15190..e71ac41b4db 100644
--- a/src/Microsoft.Graph/Generated/Models/FileHash.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileHash.cs
@@ -74,7 +74,7 @@ public FileHash()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FileHash CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileHash();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.FileHashType>("hashType", HashType);
             writer.WriteStringValue("hashValue", HashValue);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/FileObject.cs b/src/Microsoft.Graph/Generated/Models/FileObject.cs
index c19880e5393..392fdeafd25 100644
--- a/src/Microsoft.Graph/Generated/Models/FileObject.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileObject.cs
@@ -90,7 +90,7 @@ public FileObject()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FileObject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileObject();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Hashes>("hashes", Hashes);
             writer.WriteStringValue("mimeType", MimeType);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/FileSecurityState.cs b/src/Microsoft.Graph/Generated/Models/FileSecurityState.cs
index db4b3c327d3..82f99b48d42 100644
--- a/src/Microsoft.Graph/Generated/Models/FileSecurityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileSecurityState.cs
@@ -116,7 +116,7 @@ public FileSecurityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FileSecurityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileSecurityState();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileHash>("fileHash", FileHash);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/FileStorage.cs b/src/Microsoft.Graph/Generated/Models/FileStorage.cs
index b48902c67b0..e2445e792c4 100644
--- a/src/Microsoft.Graph/Generated/Models/FileStorage.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileStorage.cs
@@ -51,7 +51,7 @@ public partial class FileStorage : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FileStorage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileStorage();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FileStorageContainer>("containers", Containers);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FileStorageContainer>("deletedContainers", DeletedContainers);
diff --git a/src/Microsoft.Graph/Generated/Models/FileStorageContainer.cs b/src/Microsoft.Graph/Generated/Models/FileStorageContainer.cs
index c752c50200a..f56a75bfc58 100644
--- a/src/Microsoft.Graph/Generated/Models/FileStorageContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileStorageContainer.cs
@@ -187,7 +187,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FileStorageContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileStorageContainer();
         }
         /// <summary>
@@ -219,7 +219,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ColumnDefinition>("columns", Columns);
             writer.WriteGuidValue("containerTypeId", ContainerTypeId);
diff --git a/src/Microsoft.Graph/Generated/Models/FileStorageContainerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/FileStorageContainerCollectionResponse.cs
index 3fd2115b5e5..6e0baad469e 100644
--- a/src/Microsoft.Graph/Generated/Models/FileStorageContainerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileStorageContainerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class FileStorageContainerCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FileStorageContainerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileStorageContainerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FileStorageContainer>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/FileStorageContainerCustomPropertyDictionary.cs b/src/Microsoft.Graph/Generated/Models/FileStorageContainerCustomPropertyDictionary.cs
index 2aaf481b8c9..34a92e75bba 100644
--- a/src/Microsoft.Graph/Generated/Models/FileStorageContainerCustomPropertyDictionary.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileStorageContainerCustomPropertyDictionary.cs
@@ -19,7 +19,7 @@ public partial class FileStorageContainerCustomPropertyDictionary : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FileStorageContainerCustomPropertyDictionary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileStorageContainerCustomPropertyDictionary();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/FileStorageContainerSettings.cs b/src/Microsoft.Graph/Generated/Models/FileStorageContainerSettings.cs
index fbff03a35f2..4cc887e96f2 100644
--- a/src/Microsoft.Graph/Generated/Models/FileStorageContainerSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileStorageContainerSettings.cs
@@ -70,7 +70,7 @@ public FileStorageContainerSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FileStorageContainerSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileStorageContainerSettings();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isItemVersioningEnabled", IsItemVersioningEnabled);
             writer.WriteBoolValue("isOcrEnabled", IsOcrEnabled);
             writer.WriteIntValue("itemMajorVersionLimit", ItemMajorVersionLimit);
diff --git a/src/Microsoft.Graph/Generated/Models/FileStorageContainerViewpoint.cs b/src/Microsoft.Graph/Generated/Models/FileStorageContainerViewpoint.cs
index d68ac01f187..0b636944fa6 100644
--- a/src/Microsoft.Graph/Generated/Models/FileStorageContainerViewpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileStorageContainerViewpoint.cs
@@ -68,7 +68,7 @@ public FileStorageContainerViewpoint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FileStorageContainerViewpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileStorageContainerViewpoint();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("effectiveRole", EffectiveRole);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/FileSystemInfo.cs b/src/Microsoft.Graph/Generated/Models/FileSystemInfo.cs
index 05849cfce97..766bc427c55 100644
--- a/src/Microsoft.Graph/Generated/Models/FileSystemInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/FileSystemInfo.cs
@@ -70,7 +70,7 @@ public FileSystemInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FileSystemInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FileSystemInfo();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteDateTimeOffsetValue("lastAccessedDateTime", LastAccessedDateTime);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Filter.cs b/src/Microsoft.Graph/Generated/Models/Filter.cs
index cc2acd37f0e..5bff9c6e925 100644
--- a/src/Microsoft.Graph/Generated/Models/Filter.cs
+++ b/src/Microsoft.Graph/Generated/Models/Filter.cs
@@ -100,7 +100,7 @@ public Filter()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Filter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Filter();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterGroup>("categoryFilterGroups", CategoryFilterGroups);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterGroup>("groups", Groups);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterGroup>("inputFilterGroups", InputFilterGroups);
diff --git a/src/Microsoft.Graph/Generated/Models/FilterClause.cs b/src/Microsoft.Graph/Generated/Models/FilterClause.cs
index 366dfe633e2..815a7530c63 100644
--- a/src/Microsoft.Graph/Generated/Models/FilterClause.cs
+++ b/src/Microsoft.Graph/Generated/Models/FilterClause.cs
@@ -100,7 +100,7 @@ public FilterClause()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FilterClause CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FilterClause();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("operatorName", OperatorName);
             writer.WriteStringValue("sourceOperandName", SourceOperandName);
diff --git a/src/Microsoft.Graph/Generated/Models/FilterGroup.cs b/src/Microsoft.Graph/Generated/Models/FilterGroup.cs
index 75a5ccf1bd7..759df97b131 100644
--- a/src/Microsoft.Graph/Generated/Models/FilterGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/FilterGroup.cs
@@ -84,7 +84,7 @@ public FilterGroup()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FilterGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FilterGroup();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterClause>("clauses", Clauses);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/FilterOperand.cs b/src/Microsoft.Graph/Generated/Models/FilterOperand.cs
index c9398b8b7ca..cf9b127f9d3 100644
--- a/src/Microsoft.Graph/Generated/Models/FilterOperand.cs
+++ b/src/Microsoft.Graph/Generated/Models/FilterOperand.cs
@@ -68,7 +68,7 @@ public FilterOperand()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FilterOperand CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FilterOperand();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/FilterOperatorSchema.cs b/src/Microsoft.Graph/Generated/Models/FilterOperatorSchema.cs
index 1e84f04d6f3..cfabebef9ac 100644
--- a/src/Microsoft.Graph/Generated/Models/FilterOperatorSchema.cs
+++ b/src/Microsoft.Graph/Generated/Models/FilterOperatorSchema.cs
@@ -47,7 +47,7 @@ public partial class FilterOperatorSchema : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FilterOperatorSchema CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FilterOperatorSchema();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ScopeOperatorType>("arity", Arity);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ScopeOperatorMultiValuedComparisonType>("multivaluedComparisonType", MultivaluedComparisonType);
diff --git a/src/Microsoft.Graph/Generated/Models/FilterOperatorSchemaCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/FilterOperatorSchemaCollectionResponse.cs
index cc46041fc45..ae27aea4c2c 100644
--- a/src/Microsoft.Graph/Generated/Models/FilterOperatorSchemaCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/FilterOperatorSchemaCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class FilterOperatorSchemaCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.FilterOperatorSchemaCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FilterOperatorSchemaCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterOperatorSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Folder.cs b/src/Microsoft.Graph/Generated/Models/Folder.cs
index 7ee5230f0b9..1b502feba66 100644
--- a/src/Microsoft.Graph/Generated/Models/Folder.cs
+++ b/src/Microsoft.Graph/Generated/Models/Folder.cs
@@ -74,7 +74,7 @@ public Folder()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Folder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Folder();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("childCount", ChildCount);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FolderView>("view", View);
diff --git a/src/Microsoft.Graph/Generated/Models/FolderView.cs b/src/Microsoft.Graph/Generated/Models/FolderView.cs
index 2fb3031c9c4..ecae434fc6c 100644
--- a/src/Microsoft.Graph/Generated/Models/FolderView.cs
+++ b/src/Microsoft.Graph/Generated/Models/FolderView.cs
@@ -100,7 +100,7 @@ public FolderView()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FolderView CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FolderView();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("sortBy", SortBy);
             writer.WriteStringValue("sortOrder", SortOrder);
diff --git a/src/Microsoft.Graph/Generated/Models/FollowupFlag.cs b/src/Microsoft.Graph/Generated/Models/FollowupFlag.cs
index f89d2102092..1a5dc3d4ae8 100644
--- a/src/Microsoft.Graph/Generated/Models/FollowupFlag.cs
+++ b/src/Microsoft.Graph/Generated/Models/FollowupFlag.cs
@@ -106,7 +106,7 @@ public FollowupFlag()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FollowupFlag CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FollowupFlag();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("completedDateTime", CompletedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("dueDateTime", DueDateTime);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.FollowupFlagStatus>("flagStatus", FlagStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/FreeBusyError.cs b/src/Microsoft.Graph/Generated/Models/FreeBusyError.cs
index 0f370f1b790..4c5d0c903b3 100644
--- a/src/Microsoft.Graph/Generated/Models/FreeBusyError.cs
+++ b/src/Microsoft.Graph/Generated/Models/FreeBusyError.cs
@@ -84,7 +84,7 @@ public FreeBusyError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.FreeBusyError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.FreeBusyError();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("responseCode", ResponseCode);
diff --git a/src/Microsoft.Graph/Generated/Models/GenericError.cs b/src/Microsoft.Graph/Generated/Models/GenericError.cs
index 36424194b46..bbc0addcaba 100644
--- a/src/Microsoft.Graph/Generated/Models/GenericError.cs
+++ b/src/Microsoft.Graph/Generated/Models/GenericError.cs
@@ -84,7 +84,7 @@ public GenericError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.GenericError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GenericError();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/GeoCoordinates.cs b/src/Microsoft.Graph/Generated/Models/GeoCoordinates.cs
index 95162691d23..a8f56baf808 100644
--- a/src/Microsoft.Graph/Generated/Models/GeoCoordinates.cs
+++ b/src/Microsoft.Graph/Generated/Models/GeoCoordinates.cs
@@ -70,7 +70,7 @@ public GeoCoordinates()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.GeoCoordinates CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GeoCoordinates();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDoubleValue("altitude", Altitude);
             writer.WriteDoubleValue("latitude", Latitude);
             writer.WriteDoubleValue("longitude", Longitude);
diff --git a/src/Microsoft.Graph/Generated/Models/GeolocationColumn.cs b/src/Microsoft.Graph/Generated/Models/GeolocationColumn.cs
index 5449742d0bb..fc83404b679 100644
--- a/src/Microsoft.Graph/Generated/Models/GeolocationColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/GeolocationColumn.cs
@@ -52,7 +52,7 @@ public GeolocationColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.GeolocationColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GeolocationColumn();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/GovernanceInsight.cs b/src/Microsoft.Graph/Generated/Models/GovernanceInsight.cs
index 5af8919b019..118c5474968 100644
--- a/src/Microsoft.Graph/Generated/Models/GovernanceInsight.cs
+++ b/src/Microsoft.Graph/Generated/Models/GovernanceInsight.cs
@@ -25,7 +25,7 @@ public DateTimeOffset? InsightCreatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GovernanceInsight CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -51,7 +51,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("insightCreatedDateTime", InsightCreatedDateTime);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/GovernanceInsightCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/GovernanceInsightCollectionResponse.cs
index f583ada2d3d..2ff160b1181 100644
--- a/src/Microsoft.Graph/Generated/Models/GovernanceInsightCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/GovernanceInsightCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class GovernanceInsightCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GovernanceInsightCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GovernanceInsightCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GovernanceInsight>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifact.cs b/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifact.cs
index badfe1f7442..56c5be8e640 100644
--- a/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifact.cs
+++ b/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifact.cs
@@ -41,7 +41,7 @@ public string SearchResponseId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("artifactCount", ArtifactCount);
             writer.WriteStringValue("searchResponseId", SearchResponseId);
diff --git a/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifactCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifactCollectionResponse.cs
index 27ea8d008e5..355452cbec4 100644
--- a/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifactCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/GranularMailboxRestoreArtifactCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class GranularMailboxRestoreArtifactCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GranularMailboxRestoreArtifactCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GranularMailboxRestoreArtifactCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Group.cs b/src/Microsoft.Graph/Generated/Models/Group.cs
index ab283e2a194..bb02b35dd5b 100644
--- a/src/Microsoft.Graph/Generated/Models/Group.cs
+++ b/src/Microsoft.Graph/Generated/Models/Group.cs
@@ -945,7 +945,7 @@ public Group() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Group CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Group();
         }
         /// <summary>
@@ -1032,7 +1032,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("acceptedSenders", AcceptedSenders);
             writer.WriteBoolValue("allowExternalSenders", AllowExternalSenders);
diff --git a/src/Microsoft.Graph/Generated/Models/GroupAssignmentTarget.cs b/src/Microsoft.Graph/Generated/Models/GroupAssignmentTarget.cs
index 96c03cd4395..d595914d99e 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupAssignmentTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupAssignmentTarget.cs
@@ -43,7 +43,7 @@ public GroupAssignmentTarget() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupAssignmentTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -68,7 +68,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("groupId", GroupId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/GroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/GroupCollectionResponse.cs
index cc0fb9b4107..39008e299d3 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class GroupCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Group>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/GroupFilter.cs b/src/Microsoft.Graph/Generated/Models/GroupFilter.cs
index 952695048cc..11c0171641c 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupFilter.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupFilter.cs
@@ -68,7 +68,7 @@ public GroupFilter()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.GroupFilter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupFilter();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("includedGroups", IncludedGroups);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicy.cs b/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicy.cs
index 844a0feee84..ad5f8640cb7 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicy.cs
@@ -57,7 +57,7 @@ public string ManagedGroupTypes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupLifecyclePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupLifecyclePolicy();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("alternateNotificationEmails", AlternateNotificationEmails);
             writer.WriteIntValue("groupLifetimeInDays", GroupLifetimeInDays);
diff --git a/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicyCollectionResponse.cs
index d21a22db0fe..3dcd3ea3db3 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupLifecyclePolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class GroupLifecyclePolicyCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupLifecyclePolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupLifecyclePolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GroupLifecyclePolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/GroupMembers.cs b/src/Microsoft.Graph/Generated/Models/GroupMembers.cs
index c10d876c96b..36dfecb0bab 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupMembers.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupMembers.cs
@@ -58,7 +58,7 @@ public GroupMembers() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupMembers CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupMembers();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("groupId", GroupId);
diff --git a/src/Microsoft.Graph/Generated/Models/GroupPeerOutlierRecommendationInsightSettings.cs b/src/Microsoft.Graph/Generated/Models/GroupPeerOutlierRecommendationInsightSettings.cs
index 751d5926ac8..51a2f562cbb 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupPeerOutlierRecommendationInsightSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupPeerOutlierRecommendationInsightSettings.cs
@@ -26,7 +26,7 @@ public GroupPeerOutlierRecommendationInsightSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupPeerOutlierRecommendationInsightSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupPeerOutlierRecommendationInsightSettings();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/GroupScope.cs b/src/Microsoft.Graph/Generated/Models/GroupScope.cs
index ee9814a0c30..0239b3f70d6 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupScope.cs
@@ -26,7 +26,7 @@ public GroupScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupScope();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/GroupSetting.cs b/src/Microsoft.Graph/Generated/Models/GroupSetting.cs
index 6631689dc3a..22d212cd4e7 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupSetting.cs
@@ -67,7 +67,7 @@ public string TemplateId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupSetting();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("templateId", TemplateId);
diff --git a/src/Microsoft.Graph/Generated/Models/GroupSettingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/GroupSettingCollectionResponse.cs
index 5124d787852..b48a68aa6a3 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupSettingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupSettingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class GroupSettingCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupSettingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupSettingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GroupSetting>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/GroupSettingTemplate.cs b/src/Microsoft.Graph/Generated/Models/GroupSettingTemplate.cs
index 71d22734c6b..53df204de11 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupSettingTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupSettingTemplate.cs
@@ -74,7 +74,7 @@ public GroupSettingTemplate() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupSettingTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupSettingTemplate();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/GroupSettingTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/GroupSettingTemplateCollectionResponse.cs
index e4b5fecbc9c..674f99db7bb 100644
--- a/src/Microsoft.Graph/Generated/Models/GroupSettingTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/GroupSettingTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class GroupSettingTemplateCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.GroupSettingTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.GroupSettingTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.GroupSettingTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Hashes.cs b/src/Microsoft.Graph/Generated/Models/Hashes.cs
index a68ee494987..28ca743d1a7 100644
--- a/src/Microsoft.Graph/Generated/Models/Hashes.cs
+++ b/src/Microsoft.Graph/Generated/Models/Hashes.cs
@@ -116,7 +116,7 @@ public Hashes()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Hashes CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Hashes();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("crc32Hash", Crc32Hash);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("quickXorHash", QuickXorHash);
diff --git a/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicy.cs b/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicy.cs
index 4b18f485458..c1ff39e6096 100644
--- a/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicy.cs
@@ -26,7 +26,7 @@ public HomeRealmDiscoveryPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicyCollectionResponse.cs
index f15c665a545..b18c5743a7a 100644
--- a/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/HomeRealmDiscoveryPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HomeRealmDiscoveryPolicyCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/HorizontalSection.cs b/src/Microsoft.Graph/Generated/Models/HorizontalSection.cs
index a6006f68b8a..a31b3655883 100644
--- a/src/Microsoft.Graph/Generated/Models/HorizontalSection.cs
+++ b/src/Microsoft.Graph/Generated/Models/HorizontalSection.cs
@@ -47,7 +47,7 @@ public partial class HorizontalSection : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.HorizontalSection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HorizontalSection();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.HorizontalSectionColumn>("columns", Columns);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SectionEmphasisType>("emphasis", Emphasis);
diff --git a/src/Microsoft.Graph/Generated/Models/HorizontalSectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/HorizontalSectionCollectionResponse.cs
index d39de54b832..27e39fc7e02 100644
--- a/src/Microsoft.Graph/Generated/Models/HorizontalSectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/HorizontalSectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HorizontalSectionCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.HorizontalSectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HorizontalSectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.HorizontalSection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumn.cs b/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumn.cs
index 9295d4d2045..ba766a70c1f 100644
--- a/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumn.cs
@@ -41,7 +41,7 @@ public int? Width
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.HorizontalSectionColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HorizontalSectionColumn();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WebPart>("webparts", Webparts);
             writer.WriteIntValue("width", Width);
diff --git a/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumnCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumnCollectionResponse.cs
index a4ddf686eb7..c864999d30f 100644
--- a/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumnCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/HorizontalSectionColumnCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HorizontalSectionColumnCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.HorizontalSectionColumnCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HorizontalSectionColumnCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.HorizontalSectionColumn>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/HostSecurityState.cs b/src/Microsoft.Graph/Generated/Models/HostSecurityState.cs
index 78de777e003..1e230cc3075 100644
--- a/src/Microsoft.Graph/Generated/Models/HostSecurityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/HostSecurityState.cs
@@ -166,7 +166,7 @@ public HostSecurityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.HostSecurityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HostSecurityState();
         }
         /// <summary>
@@ -195,7 +195,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("fqdn", Fqdn);
             writer.WriteBoolValue("isAzureAdJoined", IsAzureAdJoined);
             writer.WriteBoolValue("isAzureAdRegistered", IsAzureAdRegistered);
diff --git a/src/Microsoft.Graph/Generated/Models/HttpRequestEndpoint.cs b/src/Microsoft.Graph/Generated/Models/HttpRequestEndpoint.cs
index e562663ffb3..cf7666ec7e4 100644
--- a/src/Microsoft.Graph/Generated/Models/HttpRequestEndpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/HttpRequestEndpoint.cs
@@ -42,7 +42,7 @@ public HttpRequestEndpoint() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.HttpRequestEndpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HttpRequestEndpoint();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("targetUrl", TargetUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/HyperlinkOrPictureColumn.cs b/src/Microsoft.Graph/Generated/Models/HyperlinkOrPictureColumn.cs
index 09c2a299f4e..cfa203f5824 100644
--- a/src/Microsoft.Graph/Generated/Models/HyperlinkOrPictureColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/HyperlinkOrPictureColumn.cs
@@ -58,7 +58,7 @@ public HyperlinkOrPictureColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.HyperlinkOrPictureColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.HyperlinkOrPictureColumn();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isPicture", IsPicture);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/IPv4CidrRange.cs b/src/Microsoft.Graph/Generated/Models/IPv4CidrRange.cs
index eec411d6ce2..2862e9b2f54 100644
--- a/src/Microsoft.Graph/Generated/Models/IPv4CidrRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/IPv4CidrRange.cs
@@ -42,7 +42,7 @@ public IPv4CidrRange() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IPv4CidrRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IPv4CidrRange();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("cidrAddress", CidrAddress);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IPv4Range.cs b/src/Microsoft.Graph/Generated/Models/IPv4Range.cs
index 79eae4f3a06..1801a6c31fd 100644
--- a/src/Microsoft.Graph/Generated/Models/IPv4Range.cs
+++ b/src/Microsoft.Graph/Generated/Models/IPv4Range.cs
@@ -59,7 +59,7 @@ public IPv4Range() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IPv4Range CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IPv4Range();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("lowerAddress", LowerAddress);
             writer.WriteStringValue("upperAddress", UpperAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/IPv6CidrRange.cs b/src/Microsoft.Graph/Generated/Models/IPv6CidrRange.cs
index 5ebbd8ee3ff..4888abc5d2d 100644
--- a/src/Microsoft.Graph/Generated/Models/IPv6CidrRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/IPv6CidrRange.cs
@@ -42,7 +42,7 @@ public IPv6CidrRange() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IPv6CidrRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IPv6CidrRange();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("cidrAddress", CidrAddress);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IPv6Range.cs b/src/Microsoft.Graph/Generated/Models/IPv6Range.cs
index 672ebbc4c02..cedb2551ce4 100644
--- a/src/Microsoft.Graph/Generated/Models/IPv6Range.cs
+++ b/src/Microsoft.Graph/Generated/Models/IPv6Range.cs
@@ -59,7 +59,7 @@ public IPv6Range() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IPv6Range CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IPv6Range();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("lowerAddress", LowerAddress);
             writer.WriteStringValue("upperAddress", UpperAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/Identity.cs b/src/Microsoft.Graph/Generated/Models/Identity.cs
index 599f6935f38..f3f4af1d2bb 100644
--- a/src/Microsoft.Graph/Generated/Models/Identity.cs
+++ b/src/Microsoft.Graph/Generated/Models/Identity.cs
@@ -85,7 +85,7 @@ public Identity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Identity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -131,7 +131,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityApiConnector.cs b/src/Microsoft.Graph/Generated/Models/IdentityApiConnector.cs
index aa0dc552dbc..e48678534fe 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityApiConnector.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityApiConnector.cs
@@ -67,7 +67,7 @@ public string TargetUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityApiConnector CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityApiConnector();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ApiAuthenticationConfigurationBase>("authenticationConfiguration", AuthenticationConfiguration);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityApiConnectorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityApiConnectorCollectionResponse.cs
index 44dc8eca4f1..958c85f9a7c 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityApiConnectorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityApiConnectorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IdentityApiConnectorCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityApiConnectorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityApiConnectorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityApiConnector>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityBuiltInUserFlowAttribute.cs b/src/Microsoft.Graph/Generated/Models/IdentityBuiltInUserFlowAttribute.cs
index 930ef0de6b6..2a06f49c926 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityBuiltInUserFlowAttribute.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityBuiltInUserFlowAttribute.cs
@@ -26,7 +26,7 @@ public IdentityBuiltInUserFlowAttribute() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityBuiltInUserFlowAttribute CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityBuiltInUserFlowAttribute();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityContainer.cs b/src/Microsoft.Graph/Generated/Models/IdentityContainer.cs
index e92809d0c47..16ae5922b8f 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityContainer.cs
@@ -147,7 +147,7 @@ public partial class IdentityContainer : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityContainer();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityApiConnector>("apiConnectors", ApiConnectors);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationEventListener>("authenticationEventListeners", AuthenticationEventListeners);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityCustomUserFlowAttribute.cs b/src/Microsoft.Graph/Generated/Models/IdentityCustomUserFlowAttribute.cs
index dd6b6974a6b..aa3074ed3a8 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityCustomUserFlowAttribute.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityCustomUserFlowAttribute.cs
@@ -26,7 +26,7 @@ public IdentityCustomUserFlowAttribute() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityCustomUserFlowAttribute CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityCustomUserFlowAttribute();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/AttributeChangeTrigger.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/AttributeChangeTrigger.cs
index 43967fbc3da..704cf8ed8ac 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/AttributeChangeTrigger.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/AttributeChangeTrigger.cs
@@ -42,7 +42,7 @@ public AttributeChangeTrigger() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.AttributeChangeTrigger CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.AttributeChangeTrigger();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.TriggerAttribute>("triggerAttributes", TriggerAttributes);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtension.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtension.cs
index a5bf7a3c4bc..f87e6eea1d3 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtension.cs
@@ -86,7 +86,7 @@ public CustomTaskExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionCallbackConfiguration>("callbackConfiguration", CallbackConfiguration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.User>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackConfiguration.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackConfiguration.cs
index 78b21e9850e..e99e304ee13 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackConfiguration.cs
@@ -42,7 +42,7 @@ public CustomTaskExtensionCallbackConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackConfiguration();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Application>("authorizedApps", AuthorizedApps);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackData.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackData.cs
index 057c1015d70..af25712caa7 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackData.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCallbackData.cs
@@ -32,7 +32,7 @@ public CustomTaskExtensionCallbackData() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCallbackData();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionOperationStatus>("operationStatus", OperationStatus);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCalloutData.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCalloutData.cs
index 3ef341ec1df..98dbd94506b 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCalloutData.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCalloutData.cs
@@ -90,7 +90,7 @@ public CustomTaskExtensionCalloutData() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCalloutData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCalloutData();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.User>("subject", Subject);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject>("task", Task);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCollectionResponse.cs
index bfb1b176913..a7c25764747 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/CustomTaskExtensionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CustomTaskExtensionCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtensionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/GroupBasedSubjectSet.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/GroupBasedSubjectSet.cs
index e2dc2080fd0..c7af73c4f3d 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/GroupBasedSubjectSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/GroupBasedSubjectSet.cs
@@ -42,7 +42,7 @@ public GroupBasedSubjectSet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.GroupBasedSubjectSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.GroupBasedSubjectSet();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Group>("groups", Groups);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/IdentityGovernance.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/IdentityGovernance.cs
index 82539d63728..864275738b2 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/IdentityGovernance.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/IdentityGovernance.cs
@@ -148,7 +148,7 @@ public IdentityGovernance()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.IdentityGovernance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.IdentityGovernance();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessReviewSet>("accessReviews", AccessReviews);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppConsentApprovalRoute>("appConsent", AppConsent);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EntitlementManagement>("entitlementManagement", EntitlementManagement);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Insights.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Insights.cs
index f0a7f38e230..7a04b6295cc 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Insights.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Insights.cs
@@ -19,7 +19,7 @@ public partial class Insights : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.Insights CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.Insights();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleManagementSettings.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleManagementSettings.cs
index c32c7c93006..39dd457f0a6 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleManagementSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleManagementSettings.cs
@@ -41,7 +41,7 @@ public int? WorkflowScheduleIntervalInHours
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.LifecycleManagementSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.LifecycleManagementSettings();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailSettings>("emailSettings", EmailSettings);
             writer.WriteIntValue("workflowScheduleIntervalInHours", WorkflowScheduleIntervalInHours);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleWorkflowsContainer.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleWorkflowsContainer.cs
index adcf097149e..076c47aa263 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleWorkflowsContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/LifecycleWorkflowsContainer.cs
@@ -131,7 +131,7 @@ public partial class LifecycleWorkflowsContainer : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.LifecycleWorkflowsContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.LifecycleWorkflowsContainer();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.CustomTaskExtension>("customTaskExtensions", CustomTaskExtensions);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeletedItemContainer>("deletedItems", DeletedItems);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/MembershipChangeTrigger.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/MembershipChangeTrigger.cs
index 0a30140a91f..463abb4370a 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/MembershipChangeTrigger.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/MembershipChangeTrigger.cs
@@ -32,7 +32,7 @@ public MembershipChangeTrigger() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.MembershipChangeTrigger CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.MembershipChangeTrigger();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityGovernance.MembershipChangeType>("changeType", ChangeType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/OnDemandExecutionOnly.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/OnDemandExecutionOnly.cs
index 7978cdbfdb1..d4cc1ed200d 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/OnDemandExecutionOnly.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/OnDemandExecutionOnly.cs
@@ -26,7 +26,7 @@ public OnDemandExecutionOnly() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.OnDemandExecutionOnly CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.OnDemandExecutionOnly();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Parameter.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Parameter.cs
index 4502965e4ee..4d7246af3df 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Parameter.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Parameter.cs
@@ -90,7 +90,7 @@ public Parameter()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.Parameter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.Parameter();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("values", Values);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RuleBasedSubjectSet.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RuleBasedSubjectSet.cs
index 5e7f7867932..9d010e7fefc 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RuleBasedSubjectSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RuleBasedSubjectSet.cs
@@ -42,7 +42,7 @@ public RuleBasedSubjectSet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.RuleBasedSubjectSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.RuleBasedSubjectSet();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("rule", Rule);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Run.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Run.cs
index 7f8fc920ba7..5261a2f9817 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Run.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Run.cs
@@ -123,7 +123,7 @@ public int? TotalUsersCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.Run CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.Run();
         }
         /// <summary>
@@ -156,7 +156,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteIntValue("failedTasksCount", FailedTasksCount);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunCollectionResponse.cs
index 4b256401bec..fef74be1ee6 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RunCollectionResponse : global::Microsoft.Graph.Models.Base
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.RunCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.RunCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.Run>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunSummary.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunSummary.cs
index 67a567cc62a..05038da5906 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/RunSummary.cs
@@ -88,7 +88,7 @@ public RunSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.RunSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.RunSummary();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("failedRuns", FailedRuns);
             writer.WriteIntValue("failedTasks", FailedTasks);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskCollectionResponse.cs
index 698975f2ff8..2830a0eab77 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TaskCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.TaskObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinition.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinition.cs
index 9209a92eb95..23bd9085f7a 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinition.cs
@@ -85,7 +85,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskDefinition();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityGovernance.LifecycleTaskCategory>("category", Category);
             writer.WriteBoolValue("continueOnError", ContinueOnError);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinitionCollectionResponse.cs
index 73f6b3d3b6b..a521fe0774c 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TaskDefinitionCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.TaskDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskObject.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskObject.cs
index 34eac510e43..abed84f46fd 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskObject.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskObject.cs
@@ -123,7 +123,7 @@ public string TaskDefinitionId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskObject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskObject();
         }
         /// <summary>
@@ -151,7 +151,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.KeyValuePair>("arguments", Arguments);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityGovernance.LifecycleTaskCategory>("category", Category);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResult.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResult.cs
index 6bb84dd4015..a9be9ccfe28 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResult.cs
@@ -91,7 +91,7 @@ public DateTimeOffset? StartedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskProcessingResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskProcessingResult();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResultCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResultCollectionResponse.cs
index 4bf5226e1cb..561015b5bfa 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResultCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskProcessingResultCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TaskProcessingResultCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskProcessingResultCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskProcessingResultCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.TaskProcessingResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReport.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReport.cs
index f814b7fb6d1..8b9ea2d62d3 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReport.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReport.cs
@@ -131,7 +131,7 @@ public int? UnprocessedUsersCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskReport CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskReport();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteIntValue("failedUsersCount", FailedUsersCount);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportCollectionResponse.cs
index 0d9714524e0..e36d3de218c 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TaskReportCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TaskReportCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskReportCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.TaskReport>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportSummary.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportSummary.cs
index dd15c482c8c..2e8a82a2adb 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TaskReportSummary.cs
@@ -76,7 +76,7 @@ public TaskReportSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.TaskReportSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TaskReportSummary();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("failedTasks", FailedTasks);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("successfulTasks", SuccessfulTasks);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TimeBasedAttributeTrigger.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TimeBasedAttributeTrigger.cs
index 035a1713803..27b78ca040a 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TimeBasedAttributeTrigger.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TimeBasedAttributeTrigger.cs
@@ -38,7 +38,7 @@ public TimeBasedAttributeTrigger() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TimeBasedAttributeTrigger CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TimeBasedAttributeTrigger();
         }
         /// <summary>
@@ -59,7 +59,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("offsetInDays", OffsetInDays);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityGovernance.WorkflowTriggerTimeBasedAttribute>("timeBasedAttribute", TimeBasedAttribute);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopTasksInsightsSummary.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopTasksInsightsSummary.cs
index e6239627ffc..1d2f97e241b 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopTasksInsightsSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopTasksInsightsSummary.cs
@@ -120,7 +120,7 @@ public TopTasksInsightsSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.TopTasksInsightsSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TopTasksInsightsSummary();
         }
         /// <summary>
@@ -148,7 +148,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("failedTasks", FailedTasks);
             writer.WriteIntValue("failedUsers", FailedUsers);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopWorkflowsInsightsSummary.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopWorkflowsInsightsSummary.cs
index bbc9d101457..f50bfc4656d 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopWorkflowsInsightsSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TopWorkflowsInsightsSummary.cs
@@ -132,7 +132,7 @@ public TopWorkflowsInsightsSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.TopWorkflowsInsightsSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TopWorkflowsInsightsSummary();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("failedRuns", FailedRuns);
             writer.WriteIntValue("failedUsers", FailedUsers);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAndScopeBasedConditions.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAndScopeBasedConditions.cs
index 42420a0ce89..97042c7f8fc 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAndScopeBasedConditions.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAndScopeBasedConditions.cs
@@ -58,7 +58,7 @@ public TriggerAndScopeBasedConditions() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.TriggerAndScopeBasedConditions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TriggerAndScopeBasedConditions();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SubjectSet>("scope", Scope);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityGovernance.WorkflowExecutionTrigger>("trigger", Trigger);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAttribute.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAttribute.cs
index f1090aaff6b..fd701691c62 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAttribute.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/TriggerAttribute.cs
@@ -68,7 +68,7 @@ public TriggerAttribute()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.TriggerAttribute CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.TriggerAttribute();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResult.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResult.cs
index dfe72386909..b69597efae4 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResult.cs
@@ -105,7 +105,7 @@ public int? WorkflowVersion
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.UserProcessingResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.UserProcessingResult();
         }
         /// <summary>
@@ -135,7 +135,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteIntValue("failedTasksCount", FailedTasksCount);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResultCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResultCollectionResponse.cs
index 618c010e36d..9277df9df18 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResultCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserProcessingResultCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserProcessingResultCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.UserProcessingResultCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.UserProcessingResultCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.UserProcessingResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserSummary.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserSummary.cs
index aa5ef57bf29..ab29490ac4d 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/UserSummary.cs
@@ -82,7 +82,7 @@ public UserSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.UserSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.UserSummary();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("failedTasks", FailedTasks);
             writer.WriteIntValue("failedUsers", FailedUsers);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Workflow.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Workflow.cs
index 74331152153..8903f6893f1 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Workflow.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/Workflow.cs
@@ -140,7 +140,7 @@ public Workflow() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.Workflow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.Workflow();
         }
         /// <summary>
@@ -168,7 +168,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("deletedDateTime", DeletedDateTime);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.UserProcessingResult>("executionScope", ExecutionScope);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowBase.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowBase.cs
index b12fbcb130a..730ef77631c 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowBase.cs
@@ -178,7 +178,7 @@ public WorkflowBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.WorkflowBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -215,7 +215,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityGovernance.LifecycleWorkflowCategory>("category", Category);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.User>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowCollectionResponse.cs
index 0bd814c667d..542fc31cfc7 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkflowCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.Workflow>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionConditions.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionConditions.cs
index 7e629eab58f..89dd1c2bebf 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionConditions.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionConditions.cs
@@ -52,7 +52,7 @@ public WorkflowExecutionConditions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.WorkflowExecutionConditions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionTrigger.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionTrigger.cs
index 93a776940a9..55cafc33ab9 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionTrigger.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowExecutionTrigger.cs
@@ -52,7 +52,7 @@ public WorkflowExecutionTrigger()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.WorkflowExecutionTrigger CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplate.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplate.cs
index 365520421e4..f651a93a012 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplate.cs
@@ -89,7 +89,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowTemplate();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityGovernance.LifecycleWorkflowCategory>("category", Category);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplateCollectionResponse.cs
index a8a729293b6..4a3f121c87d 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkflowTemplateCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.WorkflowTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersion.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersion.cs
index f9067c78ab4..6f9422c89db 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersion.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersion.cs
@@ -32,7 +32,7 @@ public WorkflowVersion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowVersion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowVersion();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("versionNumber", VersionNumber);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersionCollectionResponse.cs
index c3c1df0eca6..9ee8e44a4a1 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowVersionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkflowVersionCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowVersionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowVersionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityGovernance.WorkflowVersion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsByCategory.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsByCategory.cs
index ecffa9cbccd..ea3249df2dd 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsByCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsByCategory.cs
@@ -106,7 +106,7 @@ public WorkflowsInsightsByCategory()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.WorkflowsInsightsByCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowsInsightsByCategory();
         }
         /// <summary>
@@ -135,7 +135,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("failedJoinerRuns", FailedJoinerRuns);
             writer.WriteIntValue("failedLeaverRuns", FailedLeaverRuns);
             writer.WriteIntValue("failedMoverRuns", FailedMoverRuns);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsSummary.cs b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsSummary.cs
index c74bbc29064..35a13813e95 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityGovernance/WorkflowsInsightsSummary.cs
@@ -106,7 +106,7 @@ public WorkflowsInsightsSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityGovernance.WorkflowsInsightsSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityGovernance.WorkflowsInsightsSummary();
         }
         /// <summary>
@@ -135,7 +135,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("failedRuns", FailedRuns);
             writer.WriteIntValue("failedTasks", FailedTasks);
             writer.WriteIntValue("failedUsers", FailedUsers);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityProtectionRoot.cs b/src/Microsoft.Graph/Generated/Models/IdentityProtectionRoot.cs
index ac74b2127e5..5c74543295e 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityProtectionRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityProtectionRoot.cs
@@ -116,7 +116,7 @@ public IdentityProtectionRoot()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentityProtectionRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityProtectionRoot();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskDetection>("riskDetections", RiskDetections);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskyServicePrincipal>("riskyServicePrincipals", RiskyServicePrincipals);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityProvider.cs b/src/Microsoft.Graph/Generated/Models/IdentityProvider.cs
index fbb932a5ab3..1dd3ca12706 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityProvider.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityProvider.cs
@@ -83,7 +83,7 @@ public string Type
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityProvider CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityProvider();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("clientId", ClientId);
             writer.WriteStringValue("clientSecret", ClientSecret);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityProviderBase.cs b/src/Microsoft.Graph/Generated/Models/IdentityProviderBase.cs
index 6f44d3e4518..6a40660e415 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityProviderBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityProviderBase.cs
@@ -35,7 +35,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityProviderBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -65,7 +65,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityProviderBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityProviderBaseCollectionResponse.cs
index 27a796b807c..307f3e47c88 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityProviderBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityProviderBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IdentityProviderBaseCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityProviderBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityProviderBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityProviderBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityProviderCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityProviderCollectionResponse.cs
index e27e7ed35a6..b13e0e74419 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityProviderCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityProviderCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IdentityProviderCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityProviderCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityProviderCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityProvider>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentitySecurityDefaultsEnforcementPolicy.cs b/src/Microsoft.Graph/Generated/Models/IdentitySecurityDefaultsEnforcementPolicy.cs
index 7d642cd3fc7..dac1af7f46f 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentitySecurityDefaultsEnforcementPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentitySecurityDefaultsEnforcementPolicy.cs
@@ -32,7 +32,7 @@ public IdentitySecurityDefaultsEnforcementPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentitySecurityDefaultsEnforcementPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentitySecurityDefaultsEnforcementPolicy();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isEnabled", IsEnabled);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentitySet.cs b/src/Microsoft.Graph/Generated/Models/IdentitySet.cs
index 5fc3691fe83..3adddeeff55 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentitySet.cs
@@ -100,7 +100,7 @@ public IdentitySet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -133,7 +133,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("application", Application);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("device", Device);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentitySource.cs b/src/Microsoft.Graph/Generated/Models/IdentitySource.cs
index e620ed27778..1c4adfe2daf 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentitySource.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentitySource.cs
@@ -52,7 +52,7 @@ public IdentitySource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdentitySource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -81,7 +81,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityUserFlow.cs b/src/Microsoft.Graph/Generated/Models/IdentityUserFlow.cs
index e5393a1a232..7548f72569f 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityUserFlow.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityUserFlow.cs
@@ -31,7 +31,7 @@ public float? UserFlowTypeVersion
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityUserFlow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserFlowType>("userFlowType", UserFlowType);
             writer.WriteFloatValue("userFlowTypeVersion", UserFlowTypeVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttribute.cs b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttribute.cs
index fd2ab5b59ce..6d545aff0ab 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttribute.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttribute.cs
@@ -63,7 +63,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityUserFlowAttribute CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -92,7 +92,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IdentityUserFlowAttributeDataType>("dataType", DataType);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignment.cs b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignment.cs
index 27b163be025..a04b4dc8f0d 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignment.cs
@@ -85,7 +85,7 @@ public bool? RequiresVerification
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteBoolValue("isOptional", IsOptional);
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignmentCollectionResponse.cs
index 372c97ecc38..5ef04106ba5 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IdentityUserFlowAttributeAssignmentCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityUserFlowAttributeAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeCollectionResponse.cs
index b8a44669d26..be10d9a4357 100644
--- a/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdentityUserFlowAttributeCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IdentityUserFlowAttributeCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IdentityUserFlowAttributeCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdentityUserFlowAttributeCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityUserFlowAttribute>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IdleSessionSignOut.cs b/src/Microsoft.Graph/Generated/Models/IdleSessionSignOut.cs
index 704f1895b48..19f023fadd5 100644
--- a/src/Microsoft.Graph/Generated/Models/IdleSessionSignOut.cs
+++ b/src/Microsoft.Graph/Generated/Models/IdleSessionSignOut.cs
@@ -70,7 +70,7 @@ public IdleSessionSignOut()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IdleSessionSignOut CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IdleSessionSignOut();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("signOutAfterInSeconds", SignOutAfterInSeconds);
diff --git a/src/Microsoft.Graph/Generated/Models/Image.cs b/src/Microsoft.Graph/Generated/Models/Image.cs
index ca3b9218936..7b5c56d28bc 100644
--- a/src/Microsoft.Graph/Generated/Models/Image.cs
+++ b/src/Microsoft.Graph/Generated/Models/Image.cs
@@ -64,7 +64,7 @@ public Image()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Image CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Image();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("height", Height);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("width", Width);
diff --git a/src/Microsoft.Graph/Generated/Models/ImageInfo.cs b/src/Microsoft.Graph/Generated/Models/ImageInfo.cs
index 3304542970b..f5f44b932c8 100644
--- a/src/Microsoft.Graph/Generated/Models/ImageInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ImageInfo.cs
@@ -106,7 +106,7 @@ public ImageInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ImageInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ImageInfo();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("addImageQuery", AddImageQuery);
             writer.WriteStringValue("alternateText", AlternateText);
             writer.WriteStringValue("alternativeText", AlternativeText);
diff --git a/src/Microsoft.Graph/Generated/Models/ImplicitGrantSettings.cs b/src/Microsoft.Graph/Generated/Models/ImplicitGrantSettings.cs
index 18126aebcf9..3a7345f7f8d 100644
--- a/src/Microsoft.Graph/Generated/Models/ImplicitGrantSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/ImplicitGrantSettings.cs
@@ -64,7 +64,7 @@ public ImplicitGrantSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ImplicitGrantSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ImplicitGrantSettings();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("enableAccessTokenIssuance", EnableAccessTokenIssuance);
             writer.WriteBoolValue("enableIdTokenIssuance", EnableIdTokenIssuance);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentity.cs b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentity.cs
index 1edd2dfce76..960d6cc9d45 100644
--- a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentity.cs
@@ -132,7 +132,7 @@ public string SerialNumber
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("assignedUserPrincipalName", AssignedUserPrincipalName);
             writer.WriteStringValue("groupTag", GroupTag);
diff --git a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityCollectionResponse.cs
index 439f2ca9098..1ab7e156eaa 100644
--- a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ImportedWindowsAutopilotDeviceIdentityCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityState.cs b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityState.cs
index d62d73818b1..f19a23c3dfc 100644
--- a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityState.cs
@@ -96,7 +96,7 @@ public ImportedWindowsAutopilotDeviceIdentityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentityState();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("deviceErrorCode", DeviceErrorCode);
             writer.WriteStringValue("deviceErrorName", DeviceErrorName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentityImportStatus>("deviceImportStatus", DeviceImportStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityUpload.cs b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityUpload.cs
index a5c928d3d45..eaaee7376e2 100644
--- a/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityUpload.cs
+++ b/src/Microsoft.Graph/Generated/Models/ImportedWindowsAutopilotDeviceIdentityUpload.cs
@@ -48,7 +48,7 @@ public DateTimeOffset? CreatedDateTimeUtc
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentityUpload CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentityUpload();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTimeUtc", CreatedDateTimeUtc);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ImportedWindowsAutopilotDeviceIdentity>("deviceIdentities", DeviceIdentities);
diff --git a/src/Microsoft.Graph/Generated/Models/InboundOutboundPolicyConfiguration.cs b/src/Microsoft.Graph/Generated/Models/InboundOutboundPolicyConfiguration.cs
index 422ef9fa28c..ad13171fd8a 100644
--- a/src/Microsoft.Graph/Generated/Models/InboundOutboundPolicyConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/InboundOutboundPolicyConfiguration.cs
@@ -64,7 +64,7 @@ public InboundOutboundPolicyConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InboundOutboundPolicyConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InboundOutboundPolicyConfiguration();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("inboundAllowed", InboundAllowed);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("outboundAllowed", OutboundAllowed);
diff --git a/src/Microsoft.Graph/Generated/Models/IncludeAllAccountTargetContent.cs b/src/Microsoft.Graph/Generated/Models/IncludeAllAccountTargetContent.cs
index dcb0c64c923..52a6a8ec190 100644
--- a/src/Microsoft.Graph/Generated/Models/IncludeAllAccountTargetContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/IncludeAllAccountTargetContent.cs
@@ -26,7 +26,7 @@ public IncludeAllAccountTargetContent() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IncludeAllAccountTargetContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IncludeAllAccountTargetContent();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IncomingCallOptions.cs b/src/Microsoft.Graph/Generated/Models/IncomingCallOptions.cs
index 35b2e3a595d..3b0c6d48d0f 100644
--- a/src/Microsoft.Graph/Generated/Models/IncomingCallOptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/IncomingCallOptions.cs
@@ -26,7 +26,7 @@ public IncomingCallOptions() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IncomingCallOptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IncomingCallOptions();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IncomingContext.cs b/src/Microsoft.Graph/Generated/Models/IncomingContext.cs
index 717ca2384eb..902bff99d6e 100644
--- a/src/Microsoft.Graph/Generated/Models/IncomingContext.cs
+++ b/src/Microsoft.Graph/Generated/Models/IncomingContext.cs
@@ -116,7 +116,7 @@ public IncomingContext()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IncomingContext CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IncomingContext();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("observedParticipantId", ObservedParticipantId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("onBehalfOf", OnBehalfOf);
diff --git a/src/Microsoft.Graph/Generated/Models/IncompleteData.cs b/src/Microsoft.Graph/Generated/Models/IncompleteData.cs
index 07fc1317a0f..00d5d035055 100644
--- a/src/Microsoft.Graph/Generated/Models/IncompleteData.cs
+++ b/src/Microsoft.Graph/Generated/Models/IncompleteData.cs
@@ -64,7 +64,7 @@ public IncompleteData()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IncompleteData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IncompleteData();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("missingDataBeforeDateTime", MissingDataBeforeDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("wasThrottled", WasThrottled);
diff --git a/src/Microsoft.Graph/Generated/Models/InferenceClassification.cs b/src/Microsoft.Graph/Generated/Models/InferenceClassification.cs
index 03f239d5b0e..2f85ee66aac 100644
--- a/src/Microsoft.Graph/Generated/Models/InferenceClassification.cs
+++ b/src/Microsoft.Graph/Generated/Models/InferenceClassification.cs
@@ -35,7 +35,7 @@ public partial class InferenceClassification : global::Microsoft.Graph.Models.En
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InferenceClassification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InferenceClassification();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.InferenceClassificationOverride>("overrides", Overrides);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverride.cs b/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverride.cs
index 554afb53f98..c371a60252d 100644
--- a/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverride.cs
+++ b/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverride.cs
@@ -41,7 +41,7 @@ public partial class InferenceClassificationOverride : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InferenceClassificationOverride CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InferenceClassificationOverride();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.InferenceClassificationType>("classifyAs", ClassifyAs);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailAddress>("senderEmailAddress", SenderEmailAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverrideCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverrideCollectionResponse.cs
index 447ba5c5d08..cd20691b585 100644
--- a/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverrideCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/InferenceClassificationOverrideCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class InferenceClassificationOverrideCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InferenceClassificationOverrideCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InferenceClassificationOverrideCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.InferenceClassificationOverride>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InformationProtection.cs b/src/Microsoft.Graph/Generated/Models/InformationProtection.cs
index e4a80738b50..0ce8e795fa0 100644
--- a/src/Microsoft.Graph/Generated/Models/InformationProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/InformationProtection.cs
@@ -84,7 +84,7 @@ public InformationProtection()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InformationProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InformationProtection();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Bitlocker>("bitlocker", Bitlocker);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ThreatAssessmentRequest>("threatAssessmentRequests", ThreatAssessmentRequests);
diff --git a/src/Microsoft.Graph/Generated/Models/InformationalUrl.cs b/src/Microsoft.Graph/Generated/Models/InformationalUrl.cs
index f0f21473663..c5d267149ea 100644
--- a/src/Microsoft.Graph/Generated/Models/InformationalUrl.cs
+++ b/src/Microsoft.Graph/Generated/Models/InformationalUrl.cs
@@ -132,7 +132,7 @@ public InformationalUrl()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InformationalUrl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InformationalUrl();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("logoUrl", LogoUrl);
             writer.WriteStringValue("marketingUrl", MarketingUrl);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Initiator.cs b/src/Microsoft.Graph/Generated/Models/Initiator.cs
index d45adaaa123..a606bb0e72f 100644
--- a/src/Microsoft.Graph/Generated/Models/Initiator.cs
+++ b/src/Microsoft.Graph/Generated/Models/Initiator.cs
@@ -32,7 +32,7 @@ public Initiator() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Initiator CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Initiator();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.InitiatorType>("initiatorType", InitiatorType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InsightIdentity.cs b/src/Microsoft.Graph/Generated/Models/InsightIdentity.cs
index 1227a963bd7..6d82df232cd 100644
--- a/src/Microsoft.Graph/Generated/Models/InsightIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/InsightIdentity.cs
@@ -100,7 +100,7 @@ public InsightIdentity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InsightIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InsightIdentity();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("address", Address);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("id", Id);
diff --git a/src/Microsoft.Graph/Generated/Models/InsightValueDouble.cs b/src/Microsoft.Graph/Generated/Models/InsightValueDouble.cs
index e044f26e2b2..32141ac44db 100644
--- a/src/Microsoft.Graph/Generated/Models/InsightValueDouble.cs
+++ b/src/Microsoft.Graph/Generated/Models/InsightValueDouble.cs
@@ -33,7 +33,7 @@ public InsightValueDouble() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InsightValueDouble CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InsightValueDouble();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InsightValueInt.cs b/src/Microsoft.Graph/Generated/Models/InsightValueInt.cs
index 58e70ba0fcf..a6fbcf08388 100644
--- a/src/Microsoft.Graph/Generated/Models/InsightValueInt.cs
+++ b/src/Microsoft.Graph/Generated/Models/InsightValueInt.cs
@@ -33,7 +33,7 @@ public InsightValueInt() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InsightValueInt CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InsightValueInt();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InsightsSettings.cs b/src/Microsoft.Graph/Generated/Models/InsightsSettings.cs
index 0584c05f8e3..0440f4bf92a 100644
--- a/src/Microsoft.Graph/Generated/Models/InsightsSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/InsightsSettings.cs
@@ -41,7 +41,7 @@ public bool? IsEnabledInOrganization
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InsightsSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InsightsSettings();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("disabledForGroup", DisabledForGroup);
             writer.WriteBoolValue("isEnabledInOrganization", IsEnabledInOrganization);
diff --git a/src/Microsoft.Graph/Generated/Models/IntegerRange.cs b/src/Microsoft.Graph/Generated/Models/IntegerRange.cs
index d6209174f5a..3e705cda915 100644
--- a/src/Microsoft.Graph/Generated/Models/IntegerRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/IntegerRange.cs
@@ -64,7 +64,7 @@ public IntegerRange()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IntegerRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IntegerRange();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteLongValue("end", End);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("start", Start);
diff --git a/src/Microsoft.Graph/Generated/Models/IntegratedApplicationMetadata.cs b/src/Microsoft.Graph/Generated/Models/IntegratedApplicationMetadata.cs
index ef51fb40951..088894b1175 100644
--- a/src/Microsoft.Graph/Generated/Models/IntegratedApplicationMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/IntegratedApplicationMetadata.cs
@@ -84,7 +84,7 @@ public IntegratedApplicationMetadata()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IntegratedApplicationMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -111,7 +111,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("version", Version);
diff --git a/src/Microsoft.Graph/Generated/Models/InternalDomainFederation.cs b/src/Microsoft.Graph/Generated/Models/InternalDomainFederation.cs
index 26c9fde8d06..cf7cf4ae514 100644
--- a/src/Microsoft.Graph/Generated/Models/InternalDomainFederation.cs
+++ b/src/Microsoft.Graph/Generated/Models/InternalDomainFederation.cs
@@ -124,7 +124,7 @@ public InternalDomainFederation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InternalDomainFederation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InternalDomainFederation();
         }
         /// <summary>
@@ -151,7 +151,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("activeSignInUri", ActiveSignInUri);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.FederatedIdpMfaBehavior>("federatedIdpMfaBehavior", FederatedIdpMfaBehavior);
diff --git a/src/Microsoft.Graph/Generated/Models/InternalDomainFederationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/InternalDomainFederationCollectionResponse.cs
index b3970c256d0..9120f031918 100644
--- a/src/Microsoft.Graph/Generated/Models/InternalDomainFederationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/InternalDomainFederationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class InternalDomainFederationCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InternalDomainFederationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InternalDomainFederationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.InternalDomainFederation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InternalSponsors.cs b/src/Microsoft.Graph/Generated/Models/InternalSponsors.cs
index accbc12a052..a64402bfd4c 100644
--- a/src/Microsoft.Graph/Generated/Models/InternalSponsors.cs
+++ b/src/Microsoft.Graph/Generated/Models/InternalSponsors.cs
@@ -26,7 +26,7 @@ public InternalSponsors() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InternalSponsors CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InternalSponsors();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/InternetExplorerMode.cs b/src/Microsoft.Graph/Generated/Models/InternetExplorerMode.cs
index 4acc91c7944..c372de6753c 100644
--- a/src/Microsoft.Graph/Generated/Models/InternetExplorerMode.cs
+++ b/src/Microsoft.Graph/Generated/Models/InternetExplorerMode.cs
@@ -35,7 +35,7 @@ public partial class InternetExplorerMode : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InternetExplorerMode CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InternetExplorerMode();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BrowserSiteList>("siteLists", SiteLists);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InternetMessageHeader.cs b/src/Microsoft.Graph/Generated/Models/InternetMessageHeader.cs
index e99fcc0786e..22f184622b7 100644
--- a/src/Microsoft.Graph/Generated/Models/InternetMessageHeader.cs
+++ b/src/Microsoft.Graph/Generated/Models/InternetMessageHeader.cs
@@ -84,7 +84,7 @@ public InternetMessageHeader()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InternetMessageHeader CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InternetMessageHeader();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/IntuneBrand.cs b/src/Microsoft.Graph/Generated/Models/IntuneBrand.cs
index 5ef792539f9..0981f3f393c 100644
--- a/src/Microsoft.Graph/Generated/Models/IntuneBrand.cs
+++ b/src/Microsoft.Graph/Generated/Models/IntuneBrand.cs
@@ -247,7 +247,7 @@ public IntuneBrand()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IntuneBrand CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IntuneBrand();
         }
         /// <summary>
@@ -281,7 +281,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contactITEmailAddress", ContactITEmailAddress);
             writer.WriteStringValue("contactITName", ContactITName);
             writer.WriteStringValue("contactITNotes", ContactITNotes);
diff --git a/src/Microsoft.Graph/Generated/Models/InvestigationSecurityState.cs b/src/Microsoft.Graph/Generated/Models/InvestigationSecurityState.cs
index 96561e417b7..3d7634f2a3c 100644
--- a/src/Microsoft.Graph/Generated/Models/InvestigationSecurityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/InvestigationSecurityState.cs
@@ -84,7 +84,7 @@ public InvestigationSecurityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InvestigationSecurityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InvestigationSecurityState();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("status", Status);
diff --git a/src/Microsoft.Graph/Generated/Models/Invitation.cs b/src/Microsoft.Graph/Generated/Models/Invitation.cs
index 1e692402eee..0fc05fd49e3 100644
--- a/src/Microsoft.Graph/Generated/Models/Invitation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Invitation.cs
@@ -175,7 +175,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Invitation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Invitation();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.User>("invitedUser", InvitedUser);
             writer.WriteStringValue("invitedUserDisplayName", InvitedUserDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/InvitationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/InvitationCollectionResponse.cs
index 009f38fb393..6ef01be980d 100644
--- a/src/Microsoft.Graph/Generated/Models/InvitationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/InvitationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class InvitationCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InvitationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InvitationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Invitation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InvitationParticipantInfo.cs b/src/Microsoft.Graph/Generated/Models/InvitationParticipantInfo.cs
index 8474db42d23..e7b55e1204b 100644
--- a/src/Microsoft.Graph/Generated/Models/InvitationParticipantInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/InvitationParticipantInfo.cs
@@ -112,7 +112,7 @@ public InvitationParticipantInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InvitationParticipantInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InvitationParticipantInfo();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("hidden", Hidden);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("identity", Identity);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/InvitationRedemptionIdentityProviderConfiguration.cs b/src/Microsoft.Graph/Generated/Models/InvitationRedemptionIdentityProviderConfiguration.cs
index 461af152956..f7b1960d0ca 100644
--- a/src/Microsoft.Graph/Generated/Models/InvitationRedemptionIdentityProviderConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/InvitationRedemptionIdentityProviderConfiguration.cs
@@ -74,7 +74,7 @@ public InvitationRedemptionIdentityProviderConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InvitationRedemptionIdentityProviderConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.B2bIdentityProvidersType>("fallbackIdentityProvider", FallbackIdentityProvider);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.B2bIdentityProvidersType>("primaryIdentityProviderPrecedenceOrder", PrimaryIdentityProviderPrecedenceOrder);
diff --git a/src/Microsoft.Graph/Generated/Models/InviteParticipantsOperation.cs b/src/Microsoft.Graph/Generated/Models/InviteParticipantsOperation.cs
index f827a7ffbe1..9552c59d71a 100644
--- a/src/Microsoft.Graph/Generated/Models/InviteParticipantsOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/InviteParticipantsOperation.cs
@@ -35,7 +35,7 @@ public partial class InviteParticipantsOperation : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.InviteParticipantsOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InviteParticipantsOperation();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.InvitationParticipantInfo>("participants", Participants);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/InvitedUserMessageInfo.cs b/src/Microsoft.Graph/Generated/Models/InvitedUserMessageInfo.cs
index e79bdc5d951..d564869290b 100644
--- a/src/Microsoft.Graph/Generated/Models/InvitedUserMessageInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/InvitedUserMessageInfo.cs
@@ -100,7 +100,7 @@ public InvitedUserMessageInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.InvitedUserMessageInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.InvitedUserMessageInfo();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ccRecipients", CcRecipients);
             writer.WriteStringValue("customizedMessageBody", CustomizedMessageBody);
             writer.WriteStringValue("messageLanguage", MessageLanguage);
diff --git a/src/Microsoft.Graph/Generated/Models/IosCertificateProfile.cs b/src/Microsoft.Graph/Generated/Models/IosCertificateProfile.cs
index a8f3a7ed57c..afbb1d51db0 100644
--- a/src/Microsoft.Graph/Generated/Models/IosCertificateProfile.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosCertificateProfile.cs
@@ -27,7 +27,7 @@ public IosCertificateProfile() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosCertificateProfile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosCertificateProfile();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IosCompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/IosCompliancePolicy.cs
index d025334f41d..50241d7248d 100644
--- a/src/Microsoft.Graph/Generated/Models/IosCompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosCompliancePolicy.cs
@@ -131,7 +131,7 @@ public IosCompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosCompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosCompliancePolicy();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("deviceThreatProtectionEnabled", DeviceThreatProtectionEnabled);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DeviceThreatProtectionLevel>("deviceThreatProtectionRequiredSecurityLevel", DeviceThreatProtectionRequiredSecurityLevel);
diff --git a/src/Microsoft.Graph/Generated/Models/IosCustomConfiguration.cs b/src/Microsoft.Graph/Generated/Models/IosCustomConfiguration.cs
index b8873260d1d..feb4fdd96d9 100644
--- a/src/Microsoft.Graph/Generated/Models/IosCustomConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosCustomConfiguration.cs
@@ -75,7 +75,7 @@ public IosCustomConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosCustomConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosCustomConfiguration();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("payload", Payload);
             writer.WriteStringValue("payloadFileName", PayloadFileName);
diff --git a/src/Microsoft.Graph/Generated/Models/IosDdmLobAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/IosDdmLobAppAssignmentSettings.cs
index 9ac0c3da094..f5b8e9d98d9 100644
--- a/src/Microsoft.Graph/Generated/Models/IosDdmLobAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosDdmLobAppAssignmentSettings.cs
@@ -77,7 +77,7 @@ public IosDdmLobAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosDdmLobAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosDdmLobAppAssignmentSettings();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("associatedDomains", AssociatedDomains);
             writer.WriteBoolValue("associatedDomainsDirectDownloadAllowed", AssociatedDomainsDirectDownloadAllowed);
diff --git a/src/Microsoft.Graph/Generated/Models/IosDeviceFeaturesConfiguration.cs b/src/Microsoft.Graph/Generated/Models/IosDeviceFeaturesConfiguration.cs
index 3650e6c326d..1658c1a2292 100644
--- a/src/Microsoft.Graph/Generated/Models/IosDeviceFeaturesConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosDeviceFeaturesConfiguration.cs
@@ -107,7 +107,7 @@ public IosDeviceFeaturesConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosDeviceFeaturesConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosDeviceFeaturesConfiguration();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("assetTagTemplate", AssetTagTemplate);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosHomeScreenItem>("homeScreenDockIcons", HomeScreenDockIcons);
diff --git a/src/Microsoft.Graph/Generated/Models/IosDeviceType.cs b/src/Microsoft.Graph/Generated/Models/IosDeviceType.cs
index 326e1d5bee7..c69e7092993 100644
--- a/src/Microsoft.Graph/Generated/Models/IosDeviceType.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosDeviceType.cs
@@ -65,7 +65,7 @@ public IosDeviceType()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IosDeviceType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosDeviceType();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("iPad", IPad);
             writer.WriteBoolValue("iPhoneAndIPod", IPhoneAndIPod);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IosGeneralDeviceConfiguration.cs b/src/Microsoft.Graph/Generated/Models/IosGeneralDeviceConfiguration.cs
index 27c986ea6ae..19dbc39cf58 100644
--- a/src/Microsoft.Graph/Generated/Models/IosGeneralDeviceConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosGeneralDeviceConfiguration.cs
@@ -1003,7 +1003,7 @@ public IosGeneralDeviceConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosGeneralDeviceConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosGeneralDeviceConfiguration();
         }
         /// <summary>
@@ -1153,7 +1153,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("accountBlockModification", AccountBlockModification);
             writer.WriteBoolValue("activationLockAllowWhenSupervised", ActivationLockAllowWhenSupervised);
diff --git a/src/Microsoft.Graph/Generated/Models/IosHomeScreenApp.cs b/src/Microsoft.Graph/Generated/Models/IosHomeScreenApp.cs
index 8f561157b3d..0074ff44bb8 100644
--- a/src/Microsoft.Graph/Generated/Models/IosHomeScreenApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosHomeScreenApp.cs
@@ -43,7 +43,7 @@ public IosHomeScreenApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosHomeScreenApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosHomeScreenApp();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("bundleID", BundleID);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolder.cs b/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolder.cs
index 5e190b1231a..9c32e742da2 100644
--- a/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolder.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolder.cs
@@ -43,7 +43,7 @@ public IosHomeScreenFolder() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosHomeScreenFolder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosHomeScreenFolder();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosHomeScreenFolderPage>("pages", Pages);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolderPage.cs b/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolderPage.cs
index 3490888a551..d44e28c216f 100644
--- a/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolderPage.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosHomeScreenFolderPage.cs
@@ -85,7 +85,7 @@ public IosHomeScreenFolderPage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IosHomeScreenFolderPage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosHomeScreenFolderPage();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosHomeScreenApp>("apps", Apps);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IosHomeScreenItem.cs b/src/Microsoft.Graph/Generated/Models/IosHomeScreenItem.cs
index 2afc7395c1f..64bd69ef1da 100644
--- a/src/Microsoft.Graph/Generated/Models/IosHomeScreenItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosHomeScreenItem.cs
@@ -69,7 +69,7 @@ public IosHomeScreenItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IosHomeScreenItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/IosHomeScreenPage.cs b/src/Microsoft.Graph/Generated/Models/IosHomeScreenPage.cs
index d460267ad46..b581030ec52 100644
--- a/src/Microsoft.Graph/Generated/Models/IosHomeScreenPage.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosHomeScreenPage.cs
@@ -85,7 +85,7 @@ public IosHomeScreenPage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IosHomeScreenPage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosHomeScreenPage();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosHomeScreenItem>("icons", Icons);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/IosLobApp.cs b/src/Microsoft.Graph/Generated/Models/IosLobApp.cs
index a1bc0e8e470..253c9fb47ba 100644
--- a/src/Microsoft.Graph/Generated/Models/IosLobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosLobApp.cs
@@ -113,7 +113,7 @@ public IosLobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosLobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosLobApp();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IosDeviceType>("applicableDeviceType", ApplicableDeviceType);
             writer.WriteStringValue("buildNumber", BuildNumber);
diff --git a/src/Microsoft.Graph/Generated/Models/IosLobAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/IosLobAppAssignmentSettings.cs
index d61e1b57c5a..b67c65e75f6 100644
--- a/src/Microsoft.Graph/Generated/Models/IosLobAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosLobAppAssignmentSettings.cs
@@ -55,7 +55,7 @@ public IosLobAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosLobAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosLobAppAssignmentSettings();
         }
         /// <summary>
@@ -77,7 +77,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isRemovable", IsRemovable);
             writer.WriteBoolValue("uninstallOnDeviceRemoval", UninstallOnDeviceRemoval);
diff --git a/src/Microsoft.Graph/Generated/Models/IosLobAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IosLobAppCollectionResponse.cs
index 28c928cfda9..ca23a8971a1 100644
--- a/src/Microsoft.Graph/Generated/Models/IosLobAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosLobAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IosLobAppCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosLobAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosLobAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosLobApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosLobAppProvisioningConfigurationAssignment.cs b/src/Microsoft.Graph/Generated/Models/IosLobAppProvisioningConfigurationAssignment.cs
index f696732f26a..4adaba91f54 100644
--- a/src/Microsoft.Graph/Generated/Models/IosLobAppProvisioningConfigurationAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosLobAppProvisioningConfigurationAssignment.cs
@@ -36,7 +36,7 @@ public partial class IosLobAppProvisioningConfigurationAssignment : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosLobAppProvisioningConfigurationAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosLobAppProvisioningConfigurationAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosManagedAppProtection.cs b/src/Microsoft.Graph/Generated/Models/IosManagedAppProtection.cs
index da2eae082f2..cbda325f6df 100644
--- a/src/Microsoft.Graph/Generated/Models/IosManagedAppProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosManagedAppProtection.cs
@@ -109,7 +109,7 @@ public IosManagedAppProtection() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosManagedAppProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosManagedAppProtection();
         }
         /// <summary>
@@ -135,7 +135,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ManagedAppDataEncryptionType>("appDataEncryptionType", AppDataEncryptionType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
diff --git a/src/Microsoft.Graph/Generated/Models/IosManagedAppProtectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IosManagedAppProtectionCollectionResponse.cs
index 8082cb05ecf..32d36a2dfab 100644
--- a/src/Microsoft.Graph/Generated/Models/IosManagedAppProtectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosManagedAppProtectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IosManagedAppProtectionCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosManagedAppProtectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosManagedAppProtectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosManagedAppProtection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosManagedAppRegistration.cs b/src/Microsoft.Graph/Generated/Models/IosManagedAppRegistration.cs
index 591bfc810d8..350deb9f128 100644
--- a/src/Microsoft.Graph/Generated/Models/IosManagedAppRegistration.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosManagedAppRegistration.cs
@@ -27,7 +27,7 @@ public IosManagedAppRegistration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosManagedAppRegistration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosManagedAppRegistration();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IosMinimumOperatingSystem.cs b/src/Microsoft.Graph/Generated/Models/IosMinimumOperatingSystem.cs
index 79f81602481..38d5302eca3 100644
--- a/src/Microsoft.Graph/Generated/Models/IosMinimumOperatingSystem.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosMinimumOperatingSystem.cs
@@ -101,7 +101,7 @@ public IosMinimumOperatingSystem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IosMinimumOperatingSystem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosMinimumOperatingSystem();
         }
         /// <summary>
@@ -129,7 +129,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("v10_0", V100);
             writer.WriteBoolValue("v11_0", V110);
diff --git a/src/Microsoft.Graph/Generated/Models/IosMobileAppConfiguration.cs b/src/Microsoft.Graph/Generated/Models/IosMobileAppConfiguration.cs
index d06d7febe83..afe9355bb9d 100644
--- a/src/Microsoft.Graph/Generated/Models/IosMobileAppConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosMobileAppConfiguration.cs
@@ -59,7 +59,7 @@ public IosMobileAppConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosMobileAppConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosMobileAppConfiguration();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("encodedSettingXml", EncodedSettingXml);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppConfigurationSettingItem>("settings", Settings);
diff --git a/src/Microsoft.Graph/Generated/Models/IosMobileAppIdentifier.cs b/src/Microsoft.Graph/Generated/Models/IosMobileAppIdentifier.cs
index 6c2c7c6e14e..c828cdb4f1d 100644
--- a/src/Microsoft.Graph/Generated/Models/IosMobileAppIdentifier.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosMobileAppIdentifier.cs
@@ -43,7 +43,7 @@ public IosMobileAppIdentifier() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosMobileAppIdentifier CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosMobileAppIdentifier();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("bundleId", BundleId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosNetworkUsageRule.cs b/src/Microsoft.Graph/Generated/Models/IosNetworkUsageRule.cs
index ea1e9b36097..2350dc4d0ed 100644
--- a/src/Microsoft.Graph/Generated/Models/IosNetworkUsageRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosNetworkUsageRule.cs
@@ -81,7 +81,7 @@ public IosNetworkUsageRule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IosNetworkUsageRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosNetworkUsageRule();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("cellularDataBlocked", CellularDataBlocked);
             writer.WriteBoolValue("cellularDataBlockWhenRoaming", CellularDataBlockWhenRoaming);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppListItem>("managedApps", ManagedApps);
diff --git a/src/Microsoft.Graph/Generated/Models/IosNotificationSettings.cs b/src/Microsoft.Graph/Generated/Models/IosNotificationSettings.cs
index 61668fb5a84..a1653769f1f 100644
--- a/src/Microsoft.Graph/Generated/Models/IosNotificationSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosNotificationSettings.cs
@@ -137,7 +137,7 @@ public IosNotificationSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IosNotificationSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosNotificationSettings();
         }
         /// <summary>
@@ -166,7 +166,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.IosNotificationAlertType>("alertType", AlertType);
             writer.WriteStringValue("appName", AppName);
             writer.WriteBoolValue("badgesEnabled", BadgesEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/IosStoreApp.cs b/src/Microsoft.Graph/Generated/Models/IosStoreApp.cs
index f4cf4d6e43b..c8258cfaf45 100644
--- a/src/Microsoft.Graph/Generated/Models/IosStoreApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosStoreApp.cs
@@ -91,7 +91,7 @@ public IosStoreApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosStoreApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosStoreApp();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IosDeviceType>("applicableDeviceType", ApplicableDeviceType);
             writer.WriteStringValue("appStoreUrl", AppStoreUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/IosStoreAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/IosStoreAppAssignmentSettings.cs
index 0ee2a5ce03f..1939b671c33 100644
--- a/src/Microsoft.Graph/Generated/Models/IosStoreAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosStoreAppAssignmentSettings.cs
@@ -55,7 +55,7 @@ public IosStoreAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosStoreAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosStoreAppAssignmentSettings();
         }
         /// <summary>
@@ -77,7 +77,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isRemovable", IsRemovable);
             writer.WriteBoolValue("uninstallOnDeviceRemoval", UninstallOnDeviceRemoval);
diff --git a/src/Microsoft.Graph/Generated/Models/IosStoreAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IosStoreAppCollectionResponse.cs
index 7cabdd61a48..5125e7f9344 100644
--- a/src/Microsoft.Graph/Generated/Models/IosStoreAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosStoreAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IosStoreAppCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosStoreAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosStoreAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosStoreApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosUpdateConfiguration.cs b/src/Microsoft.Graph/Generated/Models/IosUpdateConfiguration.cs
index f986853a586..40fec4611c7 100644
--- a/src/Microsoft.Graph/Generated/Models/IosUpdateConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosUpdateConfiguration.cs
@@ -62,7 +62,7 @@ public IosUpdateConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosUpdateConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosUpdateConfiguration();
         }
         /// <summary>
@@ -85,7 +85,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteTimeValue("activeHoursEnd", ActiveHoursEnd);
             writer.WriteTimeValue("activeHoursStart", ActiveHoursStart);
diff --git a/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatus.cs b/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatus.cs
index 41d02801340..bcba84d7688 100644
--- a/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatus.cs
@@ -155,7 +155,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosUpdateDeviceStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosUpdateDeviceStatus();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("complianceGracePeriodExpirationDateTime", ComplianceGracePeriodExpirationDateTime);
             writer.WriteStringValue("deviceDisplayName", DeviceDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatusCollectionResponse.cs
index 11cfac46a96..221c1076bec 100644
--- a/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosUpdateDeviceStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IosUpdateDeviceStatusCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosUpdateDeviceStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosUpdateDeviceStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosUpdateDeviceStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosVppApp.cs b/src/Microsoft.Graph/Generated/Models/IosVppApp.cs
index 4379ffe8ce1..891a7803a67 100644
--- a/src/Microsoft.Graph/Generated/Models/IosVppApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosVppApp.cs
@@ -147,7 +147,7 @@ public IosVppApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosVppApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosVppApp();
         }
         /// <summary>
@@ -176,7 +176,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IosDeviceType>("applicableDeviceType", ApplicableDeviceType);
             writer.WriteStringValue("appStoreUrl", AppStoreUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/IosVppAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/IosVppAppAssignmentSettings.cs
index 78e56bb4dcd..2918554602c 100644
--- a/src/Microsoft.Graph/Generated/Models/IosVppAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosVppAppAssignmentSettings.cs
@@ -49,7 +49,7 @@ public IosVppAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosVppAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosVppAppAssignmentSettings();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("useDeviceLicensing", UseDeviceLicensing);
             writer.WriteStringValue("vpnConfigurationId", VpnConfigurationId);
diff --git a/src/Microsoft.Graph/Generated/Models/IosVppAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/IosVppAppCollectionResponse.cs
index 4164c5afbdf..2e15258de47 100644
--- a/src/Microsoft.Graph/Generated/Models/IosVppAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosVppAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IosVppAppCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosVppAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosVppAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IosVppApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/IosVppEBook.cs b/src/Microsoft.Graph/Generated/Models/IosVppEBook.cs
index a00f59807ff..0068da7ebc7 100644
--- a/src/Microsoft.Graph/Generated/Models/IosVppEBook.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosVppEBook.cs
@@ -125,7 +125,7 @@ public IosVppEBook() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosVppEBook CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosVppEBook();
         }
         /// <summary>
@@ -152,7 +152,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appleId", AppleId);
             writer.WriteCollectionOfPrimitiveValues<string>("genres", Genres);
diff --git a/src/Microsoft.Graph/Generated/Models/IosVppEBookAssignment.cs b/src/Microsoft.Graph/Generated/Models/IosVppEBookAssignment.cs
index bb2623dde6b..443c6a5736a 100644
--- a/src/Microsoft.Graph/Generated/Models/IosVppEBookAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosVppEBookAssignment.cs
@@ -20,7 +20,7 @@ public partial class IosVppEBookAssignment : global::Microsoft.Graph.Models.Mana
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosVppEBookAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosVppEBookAssignment();
         }
         /// <summary>
@@ -39,7 +39,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/IosiPadOSWebClip.cs b/src/Microsoft.Graph/Generated/Models/IosiPadOSWebClip.cs
index 307b26bc07a..d50e22c6ccc 100644
--- a/src/Microsoft.Graph/Generated/Models/IosiPadOSWebClip.cs
+++ b/src/Microsoft.Graph/Generated/Models/IosiPadOSWebClip.cs
@@ -49,7 +49,7 @@ public IosiPadOSWebClip() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IosiPadOSWebClip CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IosiPadOSWebClip();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appUrl", AppUrl);
             writer.WriteBoolValue("useManagedBrowser", UseManagedBrowser);
diff --git a/src/Microsoft.Graph/Generated/Models/IpNamedLocation.cs b/src/Microsoft.Graph/Generated/Models/IpNamedLocation.cs
index 21726daf4dd..2b996f12e4e 100644
--- a/src/Microsoft.Graph/Generated/Models/IpNamedLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/IpNamedLocation.cs
@@ -41,7 +41,7 @@ public bool? IsTrusted
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.IpNamedLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.IpNamedLocation();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IpRange>("ipRanges", IpRanges);
             writer.WriteBoolValue("isTrusted", IsTrusted);
diff --git a/src/Microsoft.Graph/Generated/Models/IpRange.cs b/src/Microsoft.Graph/Generated/Models/IpRange.cs
index f22f0f448f5..d5e112c67ef 100644
--- a/src/Microsoft.Graph/Generated/Models/IpRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/IpRange.cs
@@ -52,7 +52,7 @@ public IpRange()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.IpRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ItemActionStat.cs b/src/Microsoft.Graph/Generated/Models/ItemActionStat.cs
index 5d63659be1a..7737bcd2f9c 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemActionStat.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemActionStat.cs
@@ -64,7 +64,7 @@ public ItemActionStat()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ItemActionStat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemActionStat();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("actionCount", ActionCount);
             writer.WriteIntValue("actorCount", ActorCount);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ItemActivity.cs b/src/Microsoft.Graph/Generated/Models/ItemActivity.cs
index 3aa32d2d825..5fba9b4367f 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemActivity.cs
@@ -73,7 +73,7 @@ public DateTimeOffset? ActivityDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemActivity();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AccessAction>("access", Access);
             writer.WriteDateTimeOffsetValue("activityDateTime", ActivityDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ItemActivityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ItemActivityCollectionResponse.cs
index 8448e2777e3..3b20fd55515 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemActivityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemActivityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ItemActivityCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemActivityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemActivityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ItemActivityStat.cs b/src/Microsoft.Graph/Generated/Models/ItemActivityStat.cs
index deeae54f9da..22e84c1f45c 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemActivityStat.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemActivityStat.cs
@@ -149,7 +149,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemActivityStat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemActivityStat();
         }
         /// <summary>
@@ -178,7 +178,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemActionStat>("access", Access);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivity>("activities", Activities);
diff --git a/src/Microsoft.Graph/Generated/Models/ItemActivityStatCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ItemActivityStatCollectionResponse.cs
index 44a033bd968..fecc0828654 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemActivityStatCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemActivityStatCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ItemActivityStatCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemActivityStatCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemActivityStatCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ItemAnalytics.cs b/src/Microsoft.Graph/Generated/Models/ItemAnalytics.cs
index 27b7a6a0b8f..6ed55e52faf 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemAnalytics.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemAnalytics.cs
@@ -67,7 +67,7 @@ public partial class ItemAnalytics : global::Microsoft.Graph.Models.Entity, IPar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemAnalytics CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemAnalytics();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemActivityStat>("allTime", AllTime);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("itemActivityStats", ItemActivityStats);
diff --git a/src/Microsoft.Graph/Generated/Models/ItemAttachment.cs b/src/Microsoft.Graph/Generated/Models/ItemAttachment.cs
index cea19583629..8a4407de85a 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemAttachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemAttachment.cs
@@ -42,7 +42,7 @@ public ItemAttachment() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemAttachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemAttachment();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OutlookItem>("item", Item);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ItemBody.cs b/src/Microsoft.Graph/Generated/Models/ItemBody.cs
index 690611bf068..2272d40a5b8 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemBody.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemBody.cs
@@ -74,7 +74,7 @@ public ItemBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ItemBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("content", Content);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BodyType>("contentType", ContentType);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ItemInsights.cs b/src/Microsoft.Graph/Generated/Models/ItemInsights.cs
index 923e1460a58..6f35e983d1e 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemInsights.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemInsights.cs
@@ -19,7 +19,7 @@ public partial class ItemInsights : global::Microsoft.Graph.Models.OfficeGraphIn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemInsights CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemInsights();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ItemPreviewInfo.cs b/src/Microsoft.Graph/Generated/Models/ItemPreviewInfo.cs
index 9c80278b61c..2a4550902af 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemPreviewInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemPreviewInfo.cs
@@ -100,7 +100,7 @@ public ItemPreviewInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ItemPreviewInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemPreviewInfo();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("getUrl", GetUrl);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("postParameters", PostParameters);
diff --git a/src/Microsoft.Graph/Generated/Models/ItemReference.cs b/src/Microsoft.Graph/Generated/Models/ItemReference.cs
index 980c537e811..d7411dd53de 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemReference.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemReference.cs
@@ -180,7 +180,7 @@ public ItemReference()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ItemReference CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemReference();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("driveId", DriveId);
             writer.WriteStringValue("driveType", DriveType);
             writer.WriteStringValue("id", Id);
diff --git a/src/Microsoft.Graph/Generated/Models/ItemRetentionLabel.cs b/src/Microsoft.Graph/Generated/Models/ItemRetentionLabel.cs
index b9e5fc1dff1..3c477e85ccf 100644
--- a/src/Microsoft.Graph/Generated/Models/ItemRetentionLabel.cs
+++ b/src/Microsoft.Graph/Generated/Models/ItemRetentionLabel.cs
@@ -79,7 +79,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ItemRetentionLabel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ItemRetentionLabel();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isLabelAppliedExplicitly", IsLabelAppliedExplicitly);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("labelAppliedBy", LabelAppliedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/JoinMeetingIdMeetingInfo.cs b/src/Microsoft.Graph/Generated/Models/JoinMeetingIdMeetingInfo.cs
index a3735602125..b075eafef86 100644
--- a/src/Microsoft.Graph/Generated/Models/JoinMeetingIdMeetingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/JoinMeetingIdMeetingInfo.cs
@@ -58,7 +58,7 @@ public JoinMeetingIdMeetingInfo() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.JoinMeetingIdMeetingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.JoinMeetingIdMeetingInfo();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("joinMeetingId", JoinMeetingId);
             writer.WriteStringValue("passcode", Passcode);
diff --git a/src/Microsoft.Graph/Generated/Models/JoinMeetingIdSettings.cs b/src/Microsoft.Graph/Generated/Models/JoinMeetingIdSettings.cs
index 4893d14c26f..b2f35a141f2 100644
--- a/src/Microsoft.Graph/Generated/Models/JoinMeetingIdSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/JoinMeetingIdSettings.cs
@@ -90,7 +90,7 @@ public JoinMeetingIdSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.JoinMeetingIdSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.JoinMeetingIdSettings();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isPasscodeRequired", IsPasscodeRequired);
             writer.WriteStringValue("joinMeetingId", JoinMeetingId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/KeyCredential.cs b/src/Microsoft.Graph/Generated/Models/KeyCredential.cs
index c15b65cd9c6..2b5c742ea93 100644
--- a/src/Microsoft.Graph/Generated/Models/KeyCredential.cs
+++ b/src/Microsoft.Graph/Generated/Models/KeyCredential.cs
@@ -150,7 +150,7 @@ public KeyCredential()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.KeyCredential CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.KeyCredential();
         }
         /// <summary>
@@ -178,7 +178,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("customKeyIdentifier", CustomKeyIdentifier);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/KeyCredentialConfiguration.cs b/src/Microsoft.Graph/Generated/Models/KeyCredentialConfiguration.cs
index 7669b4fd6b8..310853c1ade 100644
--- a/src/Microsoft.Graph/Generated/Models/KeyCredentialConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/KeyCredentialConfiguration.cs
@@ -76,7 +76,7 @@ public KeyCredentialConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.KeyCredentialConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.KeyCredentialConfiguration();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeSpanValue("maxLifetime", MaxLifetime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("restrictForAppsCreatedAfterDateTime", RestrictForAppsCreatedAfterDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/KeyValue.cs b/src/Microsoft.Graph/Generated/Models/KeyValue.cs
index 00eadf7287e..c1af992ff15 100644
--- a/src/Microsoft.Graph/Generated/Models/KeyValue.cs
+++ b/src/Microsoft.Graph/Generated/Models/KeyValue.cs
@@ -84,7 +84,7 @@ public KeyValue()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.KeyValue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.KeyValue();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/KeyValuePair.cs b/src/Microsoft.Graph/Generated/Models/KeyValuePair.cs
index 7ff29c88639..ec9716c12f1 100644
--- a/src/Microsoft.Graph/Generated/Models/KeyValuePair.cs
+++ b/src/Microsoft.Graph/Generated/Models/KeyValuePair.cs
@@ -84,7 +84,7 @@ public KeyValuePair()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.KeyValuePair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.KeyValuePair();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/LabelContentRight.cs b/src/Microsoft.Graph/Generated/Models/LabelContentRight.cs
index 7f9238217fa..bff14be40af 100644
--- a/src/Microsoft.Graph/Generated/Models/LabelContentRight.cs
+++ b/src/Microsoft.Graph/Generated/Models/LabelContentRight.cs
@@ -73,7 +73,7 @@ public string Format
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LabelContentRight CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LabelContentRight();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("cid", Cid);
             writer.WriteStringValue("format", Format);
diff --git a/src/Microsoft.Graph/Generated/Models/LandingPage.cs b/src/Microsoft.Graph/Generated/Models/LandingPage.cs
index a1a88625ee2..8eb7a6f7ea4 100644
--- a/src/Microsoft.Graph/Generated/Models/LandingPage.cs
+++ b/src/Microsoft.Graph/Generated/Models/LandingPage.cs
@@ -155,7 +155,7 @@ public List<string> SupportedLocales
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LandingPage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LandingPage();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailIdentity>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/LandingPageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LandingPageCollectionResponse.cs
index 6a057cced64..4eb2b7356f2 100644
--- a/src/Microsoft.Graph/Generated/Models/LandingPageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LandingPageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LandingPageCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LandingPageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LandingPageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LandingPage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LandingPageDetail.cs b/src/Microsoft.Graph/Generated/Models/LandingPageDetail.cs
index 0befe7f654e..2d340229627 100644
--- a/src/Microsoft.Graph/Generated/Models/LandingPageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/LandingPageDetail.cs
@@ -57,7 +57,7 @@ public string Language
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LandingPageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LandingPageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("content", Content);
             writer.WriteBoolValue("isDefaultLangauge", IsDefaultLangauge);
diff --git a/src/Microsoft.Graph/Generated/Models/LandingPageDetailCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LandingPageDetailCollectionResponse.cs
index c017e655af9..b0ab61873d6 100644
--- a/src/Microsoft.Graph/Generated/Models/LandingPageDetailCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LandingPageDetailCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LandingPageDetailCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LandingPageDetailCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LandingPageDetailCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LandingPageDetail>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LearningAssignment.cs b/src/Microsoft.Graph/Generated/Models/LearningAssignment.cs
index fe8e31af7da..b999fc525f3 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningAssignment.cs
@@ -79,7 +79,7 @@ public string AssignerUserId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LearningAssignment();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("assignedDateTime", AssignedDateTime);
             writer.WriteStringValue("assignerUserId", AssignerUserId);
diff --git a/src/Microsoft.Graph/Generated/Models/LearningContent.cs b/src/Microsoft.Graph/Generated/Models/LearningContent.cs
index 1c50dbf6101..1ee6dffe980 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningContent.cs
@@ -243,7 +243,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LearningContent();
         }
         /// <summary>
@@ -281,7 +281,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("additionalTags", AdditionalTags);
             writer.WriteStringValue("contentWebUrl", ContentWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/LearningContentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LearningContentCollectionResponse.cs
index d547f7e8512..ca264c435a7 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningContentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningContentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LearningContentCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningContentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LearningContentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LearningContent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LearningCourseActivity.cs b/src/Microsoft.Graph/Generated/Models/LearningCourseActivity.cs
index d4c83e3e85f..f2046efa5a7 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningCourseActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningCourseActivity.cs
@@ -101,7 +101,7 @@ public string LearningProviderId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningCourseActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -133,7 +133,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteIntValue("completionPercentage", CompletionPercentage);
diff --git a/src/Microsoft.Graph/Generated/Models/LearningCourseActivityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LearningCourseActivityCollectionResponse.cs
index 3d229c322c4..df3bc477c11 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningCourseActivityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningCourseActivityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LearningCourseActivityCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningCourseActivityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LearningCourseActivityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LearningCourseActivity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LearningProvider.cs b/src/Microsoft.Graph/Generated/Models/LearningProvider.cs
index 297f710cb11..60b8eaa78b5 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningProvider.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningProvider.cs
@@ -153,7 +153,7 @@ public string SquareLogoWebUrlForLightTheme
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningProvider CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LearningProvider();
         }
         /// <summary>
@@ -181,7 +181,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteBoolValue("isCourseActivitySyncEnabled", IsCourseActivitySyncEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/LearningProviderCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LearningProviderCollectionResponse.cs
index 0e433304ec6..0e62fba9085 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningProviderCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningProviderCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LearningProviderCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningProviderCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LearningProviderCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LearningProvider>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LearningSelfInitiatedCourse.cs b/src/Microsoft.Graph/Generated/Models/LearningSelfInitiatedCourse.cs
index 418fd7a2562..fd9de2dcdab 100644
--- a/src/Microsoft.Graph/Generated/Models/LearningSelfInitiatedCourse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LearningSelfInitiatedCourse.cs
@@ -25,7 +25,7 @@ public DateTimeOffset? StartedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LearningSelfInitiatedCourse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LearningSelfInitiatedCourse();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("startedDateTime", StartedDateTime);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LicenseAssignmentState.cs b/src/Microsoft.Graph/Generated/Models/LicenseAssignmentState.cs
index 9238715d214..9fe332f5a00 100644
--- a/src/Microsoft.Graph/Generated/Models/LicenseAssignmentState.cs
+++ b/src/Microsoft.Graph/Generated/Models/LicenseAssignmentState.cs
@@ -128,7 +128,7 @@ public LicenseAssignmentState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LicenseAssignmentState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LicenseAssignmentState();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("assignedByGroup", AssignedByGroup);
             writer.WriteCollectionOfPrimitiveValues<Guid?>("disabledPlans", DisabledPlans);
             writer.WriteStringValue("error", Error);
diff --git a/src/Microsoft.Graph/Generated/Models/LicenseDetails.cs b/src/Microsoft.Graph/Generated/Models/LicenseDetails.cs
index ca5c57dd541..c13aa2a32f2 100644
--- a/src/Microsoft.Graph/Generated/Models/LicenseDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/LicenseDetails.cs
@@ -57,7 +57,7 @@ public string SkuPartNumber
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LicenseDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LicenseDetails();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServicePlanInfo>("servicePlans", ServicePlans);
             writer.WriteGuidValue("skuId", SkuId);
diff --git a/src/Microsoft.Graph/Generated/Models/LicenseDetailsCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LicenseDetailsCollectionResponse.cs
index 6a18b676531..b5f9e133d6b 100644
--- a/src/Microsoft.Graph/Generated/Models/LicenseDetailsCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LicenseDetailsCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LicenseDetailsCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LicenseDetailsCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LicenseDetailsCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LicenseDetails>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LicenseProcessingState.cs b/src/Microsoft.Graph/Generated/Models/LicenseProcessingState.cs
index 1de4cfc11df..3963a8237ea 100644
--- a/src/Microsoft.Graph/Generated/Models/LicenseProcessingState.cs
+++ b/src/Microsoft.Graph/Generated/Models/LicenseProcessingState.cs
@@ -68,7 +68,7 @@ public LicenseProcessingState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LicenseProcessingState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LicenseProcessingState();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("state", State);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/LicenseUnitsDetail.cs b/src/Microsoft.Graph/Generated/Models/LicenseUnitsDetail.cs
index 8a3d107a2a2..13f65751a38 100644
--- a/src/Microsoft.Graph/Generated/Models/LicenseUnitsDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/LicenseUnitsDetail.cs
@@ -76,7 +76,7 @@ public LicenseUnitsDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LicenseUnitsDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LicenseUnitsDetail();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("enabled", Enabled);
             writer.WriteIntValue("lockedOut", LockedOut);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/LinkedResource.cs b/src/Microsoft.Graph/Generated/Models/LinkedResource.cs
index c7fc2f32c80..10b9e3c0952 100644
--- a/src/Microsoft.Graph/Generated/Models/LinkedResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/LinkedResource.cs
@@ -83,7 +83,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LinkedResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LinkedResource();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("applicationName", ApplicationName);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/LinkedResourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LinkedResourceCollectionResponse.cs
index 224204971a1..feac31dd732 100644
--- a/src/Microsoft.Graph/Generated/Models/LinkedResourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LinkedResourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LinkedResourceCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LinkedResourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LinkedResourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LinkedResource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/List.cs b/src/Microsoft.Graph/Generated/Models/List.cs
index add6d075325..8a25a6f0e19 100644
--- a/src/Microsoft.Graph/Generated/Models/List.cs
+++ b/src/Microsoft.Graph/Generated/Models/List.cs
@@ -186,7 +186,7 @@ public List() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.List CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.List();
         }
         /// <summary>
@@ -215,7 +215,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ColumnDefinition>("columns", Columns);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("contentTypes", ContentTypes);
diff --git a/src/Microsoft.Graph/Generated/Models/ListCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ListCollectionResponse.cs
index aed97e1c470..7f360ba1b93 100644
--- a/src/Microsoft.Graph/Generated/Models/ListCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ListCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ListCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ListCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ListCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.List>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ListInfo.cs b/src/Microsoft.Graph/Generated/Models/ListInfo.cs
index 2fc1678b29c..7fc132e6437 100644
--- a/src/Microsoft.Graph/Generated/Models/ListInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ListInfo.cs
@@ -80,7 +80,7 @@ public ListInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ListInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ListInfo();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("contentTypesEnabled", ContentTypesEnabled);
             writer.WriteBoolValue("hidden", Hidden);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ListItem.cs b/src/Microsoft.Graph/Generated/Models/ListItem.cs
index e4329221f86..49639c86642 100644
--- a/src/Microsoft.Graph/Generated/Models/ListItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ListItem.cs
@@ -138,7 +138,7 @@ public ListItem() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ListItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ListItem();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemAnalytics>("analytics", Analytics);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ContentTypeInfo>("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/ListItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ListItemCollectionResponse.cs
index c1731502d41..90d42101a8d 100644
--- a/src/Microsoft.Graph/Generated/Models/ListItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ListItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ListItemCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ListItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ListItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ListItemVersion.cs b/src/Microsoft.Graph/Generated/Models/ListItemVersion.cs
index ecf0e63cb3a..659d4981ce5 100644
--- a/src/Microsoft.Graph/Generated/Models/ListItemVersion.cs
+++ b/src/Microsoft.Graph/Generated/Models/ListItemVersion.cs
@@ -42,7 +42,7 @@ public ListItemVersion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ListItemVersion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -67,7 +67,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FieldValueSet>("fields", Fields);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ListItemVersionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ListItemVersionCollectionResponse.cs
index 683b2bd5ba5..16dabee2c4c 100644
--- a/src/Microsoft.Graph/Generated/Models/ListItemVersionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ListItemVersionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ListItemVersionCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ListItemVersionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ListItemVersionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItemVersion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LobbyBypassSettings.cs b/src/Microsoft.Graph/Generated/Models/LobbyBypassSettings.cs
index 1ac82533a81..34e12bf384a 100644
--- a/src/Microsoft.Graph/Generated/Models/LobbyBypassSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/LobbyBypassSettings.cs
@@ -64,7 +64,7 @@ public LobbyBypassSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LobbyBypassSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LobbyBypassSettings();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isDialInBypassEnabled", IsDialInBypassEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.LobbyBypassScope>("scope", Scope);
diff --git a/src/Microsoft.Graph/Generated/Models/LocalAdminPasswordSettings.cs b/src/Microsoft.Graph/Generated/Models/LocalAdminPasswordSettings.cs
index 7436fce1c10..430640b19ce 100644
--- a/src/Microsoft.Graph/Generated/Models/LocalAdminPasswordSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/LocalAdminPasswordSettings.cs
@@ -58,7 +58,7 @@ public LocalAdminPasswordSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LocalAdminPasswordSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LocalAdminPasswordSettings();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/LocaleInfo.cs b/src/Microsoft.Graph/Generated/Models/LocaleInfo.cs
index db51f2fcc48..cb6980faca5 100644
--- a/src/Microsoft.Graph/Generated/Models/LocaleInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/LocaleInfo.cs
@@ -84,7 +84,7 @@ public LocaleInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LocaleInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LocaleInfo();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("locale", Locale);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessage.cs b/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessage.cs
index 148b4199249..348e8623956 100644
--- a/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessage.cs
+++ b/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessage.cs
@@ -80,7 +80,7 @@ public string Subject
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LocalizedNotificationMessage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LocalizedNotificationMessage();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isDefault", IsDefault);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessageCollectionResponse.cs
index 5e61ddddb66..32096863be0 100644
--- a/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LocalizedNotificationMessageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LocalizedNotificationMessageCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LocalizedNotificationMessageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LocalizedNotificationMessageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LocalizedNotificationMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LocateDeviceActionResult.cs b/src/Microsoft.Graph/Generated/Models/LocateDeviceActionResult.cs
index fc555a201f4..0f60c00fffd 100644
--- a/src/Microsoft.Graph/Generated/Models/LocateDeviceActionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/LocateDeviceActionResult.cs
@@ -36,7 +36,7 @@ public partial class LocateDeviceActionResult : global::Microsoft.Graph.Models.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LocateDeviceActionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LocateDeviceActionResult();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceGeoLocation>("deviceLocation", DeviceLocation);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Location.cs b/src/Microsoft.Graph/Generated/Models/Location.cs
index 2175b2ff7df..12fc0361c1c 100644
--- a/src/Microsoft.Graph/Generated/Models/Location.cs
+++ b/src/Microsoft.Graph/Generated/Models/Location.cs
@@ -160,7 +160,7 @@ public Location()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Location CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -193,7 +193,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PhysicalAddress>("address", Address);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OutlookGeoCoordinates>("coordinates", Coordinates);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/LocationConstraint.cs b/src/Microsoft.Graph/Generated/Models/LocationConstraint.cs
index 6c2df552d89..b3a6d784733 100644
--- a/src/Microsoft.Graph/Generated/Models/LocationConstraint.cs
+++ b/src/Microsoft.Graph/Generated/Models/LocationConstraint.cs
@@ -80,7 +80,7 @@ public LocationConstraint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LocationConstraint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LocationConstraint();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isRequired", IsRequired);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LocationConstraintItem>("locations", Locations);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/LocationConstraintItem.cs b/src/Microsoft.Graph/Generated/Models/LocationConstraintItem.cs
index 4d5b831dca5..cf9118349c3 100644
--- a/src/Microsoft.Graph/Generated/Models/LocationConstraintItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/LocationConstraintItem.cs
@@ -32,7 +32,7 @@ public LocationConstraintItem() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LocationConstraintItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LocationConstraintItem();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("resolveAvailability", ResolveAvailability);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LogicAppTriggerEndpointConfiguration.cs b/src/Microsoft.Graph/Generated/Models/LogicAppTriggerEndpointConfiguration.cs
index 543a62a89c5..b4c1f1b113e 100644
--- a/src/Microsoft.Graph/Generated/Models/LogicAppTriggerEndpointConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/LogicAppTriggerEndpointConfiguration.cs
@@ -90,7 +90,7 @@ public LogicAppTriggerEndpointConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LogicAppTriggerEndpointConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LogicAppTriggerEndpointConfiguration();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("logicAppWorkflowName", LogicAppWorkflowName);
             writer.WriteStringValue("resourceGroupName", ResourceGroupName);
diff --git a/src/Microsoft.Graph/Generated/Models/LoginPage.cs b/src/Microsoft.Graph/Generated/Models/LoginPage.cs
index 02b7576ca48..90175f9b12d 100644
--- a/src/Microsoft.Graph/Generated/Models/LoginPage.cs
+++ b/src/Microsoft.Graph/Generated/Models/LoginPage.cs
@@ -139,7 +139,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LoginPage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LoginPage();
         }
         /// <summary>
@@ -168,7 +168,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("content", Content);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailIdentity>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/LoginPageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LoginPageCollectionResponse.cs
index 2c6d9df970a..eba899645d0 100644
--- a/src/Microsoft.Graph/Generated/Models/LoginPageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LoginPageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LoginPageCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LoginPageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LoginPageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LoginPage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LoginPageLayoutConfiguration.cs b/src/Microsoft.Graph/Generated/Models/LoginPageLayoutConfiguration.cs
index ff798c5c14c..f54cb388f47 100644
--- a/src/Microsoft.Graph/Generated/Models/LoginPageLayoutConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/LoginPageLayoutConfiguration.cs
@@ -70,7 +70,7 @@ public LoginPageLayoutConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LoginPageLayoutConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LoginPageLayoutConfiguration();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isFooterShown", IsFooterShown);
             writer.WriteBoolValue("isHeaderShown", IsHeaderShown);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.LayoutTemplateType>("layoutTemplateType", LayoutTemplateType);
diff --git a/src/Microsoft.Graph/Generated/Models/LoginPageTextVisibilitySettings.cs b/src/Microsoft.Graph/Generated/Models/LoginPageTextVisibilitySettings.cs
index 142172c473e..c9d49c64d61 100644
--- a/src/Microsoft.Graph/Generated/Models/LoginPageTextVisibilitySettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/LoginPageTextVisibilitySettings.cs
@@ -88,7 +88,7 @@ public LoginPageTextVisibilitySettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LoginPageTextVisibilitySettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LoginPageTextVisibilitySettings();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("hideAccountResetCredentials", HideAccountResetCredentials);
             writer.WriteBoolValue("hideCannotAccessYourAccount", HideCannotAccessYourAccount);
             writer.WriteBoolValue("hideForgotMyPassword", HideForgotMyPassword);
diff --git a/src/Microsoft.Graph/Generated/Models/LongRunningOperation.cs b/src/Microsoft.Graph/Generated/Models/LongRunningOperation.cs
index 276b9a23507..c0fce40d9a7 100644
--- a/src/Microsoft.Graph/Generated/Models/LongRunningOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/LongRunningOperation.cs
@@ -70,7 +70,7 @@ public string StatusDetail
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LongRunningOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteDateTimeOffsetValue("lastActionDateTime", LastActionDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/LongRunningOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/LongRunningOperationCollectionResponse.cs
index e936bcab2a7..e2832084323 100644
--- a/src/Microsoft.Graph/Generated/Models/LongRunningOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/LongRunningOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class LongRunningOperationCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.LongRunningOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LongRunningOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LongRunningOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/LookupColumn.cs b/src/Microsoft.Graph/Generated/Models/LookupColumn.cs
index 0410abe24e4..26f88398a67 100644
--- a/src/Microsoft.Graph/Generated/Models/LookupColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/LookupColumn.cs
@@ -112,7 +112,7 @@ public LookupColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.LookupColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.LookupColumn();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowMultipleValues", AllowMultipleValues);
             writer.WriteBoolValue("allowUnlimitedLength", AllowUnlimitedLength);
             writer.WriteStringValue("columnName", ColumnName);
diff --git a/src/Microsoft.Graph/Generated/Models/M365AppsInstallationOptions.cs b/src/Microsoft.Graph/Generated/Models/M365AppsInstallationOptions.cs
index 5f5a1423287..db5944ef154 100644
--- a/src/Microsoft.Graph/Generated/Models/M365AppsInstallationOptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/M365AppsInstallationOptions.cs
@@ -57,7 +57,7 @@ public partial class M365AppsInstallationOptions : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.M365AppsInstallationOptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.M365AppsInstallationOptions();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppsInstallationOptionsForMac>("appsForMac", AppsForMac);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppsInstallationOptionsForWindows>("appsForWindows", AppsForWindows);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSCompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/MacOSCompliancePolicy.cs
index bfbd5c05a0f..5e79b9fcce4 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSCompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSCompliancePolicy.cs
@@ -149,7 +149,7 @@ public MacOSCompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSCompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSCompliancePolicy();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("deviceThreatProtectionEnabled", DeviceThreatProtectionEnabled);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DeviceThreatProtectionLevel>("deviceThreatProtectionRequiredSecurityLevel", DeviceThreatProtectionRequiredSecurityLevel);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSCustomConfiguration.cs b/src/Microsoft.Graph/Generated/Models/MacOSCustomConfiguration.cs
index 4c4b9e26bb2..86f98186f13 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSCustomConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSCustomConfiguration.cs
@@ -75,7 +75,7 @@ public MacOSCustomConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSCustomConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSCustomConfiguration();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("payload", Payload);
             writer.WriteStringValue("payloadFileName", PayloadFileName);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSDeviceFeaturesConfiguration.cs b/src/Microsoft.Graph/Generated/Models/MacOSDeviceFeaturesConfiguration.cs
index ee54261136f..31dc0fdc4a5 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSDeviceFeaturesConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSDeviceFeaturesConfiguration.cs
@@ -27,7 +27,7 @@ public MacOSDeviceFeaturesConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSDeviceFeaturesConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSDeviceFeaturesConfiguration();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSDmgApp.cs b/src/Microsoft.Graph/Generated/Models/MacOSDmgApp.cs
index e9018b32090..3a7c0508817 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSDmgApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSDmgApp.cs
@@ -97,7 +97,7 @@ public MacOSDmgApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSDmgApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSDmgApp();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("ignoreVersionDetection", IgnoreVersionDetection);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MacOSIncludedApp>("includedApps", IncludedApps);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSDmgAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MacOSDmgAppCollectionResponse.cs
index dae59121acc..a0c9f34ac81 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSDmgAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSDmgAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MacOSDmgAppCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSDmgAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSDmgAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MacOSDmgApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSGeneralDeviceConfiguration.cs b/src/Microsoft.Graph/Generated/Models/MacOSGeneralDeviceConfiguration.cs
index 1498c79d6e6..f1fc3d6a8e2 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSGeneralDeviceConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSGeneralDeviceConfiguration.cs
@@ -119,7 +119,7 @@ public MacOSGeneralDeviceConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSGeneralDeviceConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSGeneralDeviceConfiguration();
         }
         /// <summary>
@@ -150,7 +150,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AppListType>("compliantAppListType", CompliantAppListType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppListItem>("compliantAppsList", CompliantAppsList);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSIncludedApp.cs b/src/Microsoft.Graph/Generated/Models/MacOSIncludedApp.cs
index f77d21f2997..e530a3f9db3 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSIncludedApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSIncludedApp.cs
@@ -85,7 +85,7 @@ public MacOSIncludedApp()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MacOSIncludedApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSIncludedApp();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("bundleId", BundleId);
             writer.WriteStringValue("bundleVersion", BundleVersion);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSLobApp.cs b/src/Microsoft.Graph/Generated/Models/MacOSLobApp.cs
index 7820f80a9c1..ff58477c894 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSLobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSLobApp.cs
@@ -141,7 +141,7 @@ public MacOSLobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSLobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSLobApp();
         }
         /// <summary>
@@ -169,7 +169,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("buildNumber", BuildNumber);
             writer.WriteStringValue("bundleId", BundleId);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSLobAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MacOSLobAppCollectionResponse.cs
index c74b02c2692..e1d6d9c7fc8 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSLobAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSLobAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MacOSLobAppCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSLobAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSLobAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MacOSLobApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSLobChildApp.cs b/src/Microsoft.Graph/Generated/Models/MacOSLobChildApp.cs
index 10552ec884e..5a6dd540b5b 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSLobChildApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSLobChildApp.cs
@@ -101,7 +101,7 @@ public MacOSLobChildApp()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MacOSLobChildApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSLobChildApp();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("buildNumber", BuildNumber);
             writer.WriteStringValue("bundleId", BundleId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftDefenderApp.cs b/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftDefenderApp.cs
index 07367a12b12..1a924fec90e 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftDefenderApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftDefenderApp.cs
@@ -27,7 +27,7 @@ public MacOSMicrosoftDefenderApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSMicrosoftDefenderApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSMicrosoftDefenderApp();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftEdgeApp.cs b/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftEdgeApp.cs
index b99ff5d3744..62b4950b64c 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftEdgeApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSMicrosoftEdgeApp.cs
@@ -33,7 +33,7 @@ public MacOSMicrosoftEdgeApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSMicrosoftEdgeApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSMicrosoftEdgeApp();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MicrosoftEdgeChannel>("channel", Channel);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSMinimumOperatingSystem.cs b/src/Microsoft.Graph/Generated/Models/MacOSMinimumOperatingSystem.cs
index ad1ef2545c3..eb2eb4eb159 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSMinimumOperatingSystem.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSMinimumOperatingSystem.cs
@@ -125,7 +125,7 @@ public MacOSMinimumOperatingSystem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MacOSMinimumOperatingSystem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSMinimumOperatingSystem();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("v10_10", V1010);
             writer.WriteBoolValue("v10_11", V1011);
diff --git a/src/Microsoft.Graph/Generated/Models/MacOSOfficeSuiteApp.cs b/src/Microsoft.Graph/Generated/Models/MacOSOfficeSuiteApp.cs
index 0a0834ab22f..9d144d4e8c1 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOSOfficeSuiteApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOSOfficeSuiteApp.cs
@@ -27,7 +27,7 @@ public MacOSOfficeSuiteApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOSOfficeSuiteApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOSOfficeSuiteApp();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/MacOsLobAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/MacOsLobAppAssignmentSettings.cs
index 7f8f6f50ca0..ad7426fe95a 100644
--- a/src/Microsoft.Graph/Generated/Models/MacOsLobAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/MacOsLobAppAssignmentSettings.cs
@@ -33,7 +33,7 @@ public MacOsLobAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MacOsLobAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MacOsLobAppAssignmentSettings();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("uninstallOnDeviceRemoval", UninstallOnDeviceRemoval);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailAssessmentRequest.cs b/src/Microsoft.Graph/Generated/Models/MailAssessmentRequest.cs
index e5f49a751e1..778c07c1ffa 100644
--- a/src/Microsoft.Graph/Generated/Models/MailAssessmentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailAssessmentRequest.cs
@@ -64,7 +64,7 @@ public MailAssessmentRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailAssessmentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailAssessmentRequest();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MailDestinationRoutingReason>("destinationRoutingReason", DestinationRoutingReason);
             writer.WriteStringValue("messageUri", MessageUri);
diff --git a/src/Microsoft.Graph/Generated/Models/MailFolder.cs b/src/Microsoft.Graph/Generated/Models/MailFolder.cs
index e26de8d32ed..2331eacca7a 100644
--- a/src/Microsoft.Graph/Generated/Models/MailFolder.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailFolder.cs
@@ -155,7 +155,7 @@ public int? UnreadItemCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailFolder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -190,7 +190,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("childFolderCount", ChildFolderCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailFolder>("childFolders", ChildFolders);
diff --git a/src/Microsoft.Graph/Generated/Models/MailFolderCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MailFolderCollectionResponse.cs
index b7b7c9ce786..8be850e2f9b 100644
--- a/src/Microsoft.Graph/Generated/Models/MailFolderCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailFolderCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MailFolderCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailFolderCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailFolderCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailSearchFolder.cs b/src/Microsoft.Graph/Generated/Models/MailSearchFolder.cs
index 1b651507b61..aea074f5b25 100644
--- a/src/Microsoft.Graph/Generated/Models/MailSearchFolder.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailSearchFolder.cs
@@ -70,7 +70,7 @@ public MailSearchFolder() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailSearchFolder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailSearchFolder();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("filterQuery", FilterQuery);
             writer.WriteBoolValue("includeNestedFolders", IncludeNestedFolders);
diff --git a/src/Microsoft.Graph/Generated/Models/MailTips.cs b/src/Microsoft.Graph/Generated/Models/MailTips.cs
index a46fb7266d0..772d9201288 100644
--- a/src/Microsoft.Graph/Generated/Models/MailTips.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailTips.cs
@@ -174,7 +174,7 @@ public MailTips()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MailTips CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailTips();
         }
         /// <summary>
@@ -206,7 +206,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AutomaticRepliesMailTips>("automaticReplies", AutomaticReplies);
             writer.WriteStringValue("customMailTip", CustomMailTip);
             writer.WriteBoolValue("deliveryRestricted", DeliveryRestricted);
diff --git a/src/Microsoft.Graph/Generated/Models/MailTipsError.cs b/src/Microsoft.Graph/Generated/Models/MailTipsError.cs
index 40085f79f78..06a58604c99 100644
--- a/src/Microsoft.Graph/Generated/Models/MailTipsError.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailTipsError.cs
@@ -84,7 +84,7 @@ public MailTipsError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MailTipsError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailTipsError();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxProtectionRule.cs b/src/Microsoft.Graph/Generated/Models/MailboxProtectionRule.cs
index 35b0f148948..06e2ef87cb3 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxProtectionRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxProtectionRule.cs
@@ -42,7 +42,7 @@ public MailboxProtectionRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxProtectionRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxProtectionRule();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("mailboxExpression", MailboxExpression);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxProtectionRuleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MailboxProtectionRuleCollectionResponse.cs
index a1229b71958..c19ab30977d 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxProtectionRuleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxProtectionRuleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MailboxProtectionRuleCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxProtectionRuleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxProtectionRuleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxProtectionRule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnit.cs b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnit.cs
index 2e4adac749c..ba733063f45 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnit.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnit.cs
@@ -74,7 +74,7 @@ public MailboxProtectionUnit() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxProtectionUnit CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxProtectionUnit();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("directoryObjectId", DirectoryObjectId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitCollectionResponse.cs
index 30b3510ef52..b2a719c1c8a 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MailboxProtectionUnitCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxProtectionUnitCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxProtectionUnitCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxProtectionUnit>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJob.cs b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJob.cs
index 4bb9d1c3741..5c3e785f8cd 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJob.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJob.cs
@@ -58,7 +58,7 @@ public MailboxProtectionUnitsBulkAdditionJob() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("directoryObjectIds", DirectoryObjectIds);
             writer.WriteCollectionOfPrimitiveValues<string>("mailboxes", Mailboxes);
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJobCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJobCollectionResponse.cs
index ae8d80a53d5..cf58382f8b2 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJobCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxProtectionUnitsBulkAdditionJobCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MailboxProtectionUnitsBulkAdditionJobCollectionResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJobCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJobCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifact.cs b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifact.cs
index 8c3f2106256..73c479987db 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifact.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifact.cs
@@ -57,7 +57,7 @@ public int? RestoredItemCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxRestoreArtifact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -84,7 +84,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("restoredFolderId", RestoredFolderId);
             writer.WriteIntValue("restoredItemCount", RestoredItemCount);
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactCollectionResponse.cs
index b74a62635b3..c7954fc6c66 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MailboxRestoreArtifactCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxRestoreArtifactCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxRestoreArtifactCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxRestoreArtifact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequest.cs b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequest.cs
index 688358267da..90b4986760b 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequest.cs
@@ -51,7 +51,7 @@ public List<string> Mailboxes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("directoryObjectIds", DirectoryObjectIds);
             writer.WriteCollectionOfPrimitiveValues<string>("mailboxes", Mailboxes);
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
index 328f11eb2f4..383c8097684 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MailboxRestoreArtifactsBulkAdditionRequestCollectionRespons
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MailboxSettings.cs b/src/Microsoft.Graph/Generated/Models/MailboxSettings.cs
index cd3d507db53..435ab7aafac 100644
--- a/src/Microsoft.Graph/Generated/Models/MailboxSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/MailboxSettings.cs
@@ -176,7 +176,7 @@ public MailboxSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MailboxSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MailboxSettings();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("archiveFolder", ArchiveFolder);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AutomaticRepliesSetting>("automaticRepliesSetting", AutomaticRepliesSetting);
             writer.WriteStringValue("dateFormat", DateFormat);
diff --git a/src/Microsoft.Graph/Generated/Models/Malware.cs b/src/Microsoft.Graph/Generated/Models/Malware.cs
index 16dedb90065..0422e7e1e95 100644
--- a/src/Microsoft.Graph/Generated/Models/Malware.cs
+++ b/src/Microsoft.Graph/Generated/Models/Malware.cs
@@ -68,7 +68,7 @@ public Malware()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Malware CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Malware();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/MalwareState.cs b/src/Microsoft.Graph/Generated/Models/MalwareState.cs
index 58161fd2e52..ab62508357d 100644
--- a/src/Microsoft.Graph/Generated/Models/MalwareState.cs
+++ b/src/Microsoft.Graph/Generated/Models/MalwareState.cs
@@ -122,7 +122,7 @@ public MalwareState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MalwareState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MalwareState();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("category", Category);
             writer.WriteStringValue("family", Family);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDevice.cs b/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDevice.cs
index 943256368ff..c38fe1501c1 100644
--- a/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDevice.cs
+++ b/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDevice.cs
@@ -66,7 +66,7 @@ public DateTimeOffset? LastStateChangeDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MalwareStateForWindowsDevice CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MalwareStateForWindowsDevice();
         }
         /// <summary>
@@ -91,7 +91,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("detectionCount", DetectionCount);
             writer.WriteStringValue("deviceName", DeviceName);
diff --git a/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDeviceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDeviceCollectionResponse.cs
index b3cae71a529..28b4bf03a45 100644
--- a/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDeviceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MalwareStateForWindowsDeviceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MalwareStateForWindowsDeviceCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MalwareStateForWindowsDeviceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MalwareStateForWindowsDeviceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MalwareStateForWindowsDevice>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobApp.cs
index 8365e7ac6c7..505b7d2f6c6 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobApp.cs
@@ -91,7 +91,7 @@ public ManagedAndroidLobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAndroidLobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAndroidLobApp();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AndroidMinimumOperatingSystem>("minimumSupportedOperatingSystem", MinimumSupportedOperatingSystem);
             writer.WriteStringValue("packageId", PackageId);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobAppCollectionResponse.cs
index 40741e2b864..9ac82057b3a 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAndroidLobAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedAndroidLobAppCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAndroidLobAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAndroidLobAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAndroidLobApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAndroidStoreApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedAndroidStoreApp.cs
index 3390ad448ab..d79726e5563 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAndroidStoreApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAndroidStoreApp.cs
@@ -75,7 +75,7 @@ public ManagedAndroidStoreApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAndroidStoreApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAndroidStoreApp();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appStoreUrl", AppStoreUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AndroidMinimumOperatingSystem>("minimumSupportedOperatingSystem", MinimumSupportedOperatingSystem);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedApp.cs
index 3eaa53cc626..9c997118364 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedApp.cs
@@ -49,7 +49,7 @@ public ManagedApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ManagedAppAvailability>("appAvailability", AppAvailability);
             writer.WriteStringValue("version", Version);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppConfiguration.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppConfiguration.cs
index 2d5acce8f62..10271532301 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppConfiguration.cs
@@ -43,7 +43,7 @@ public ManagedAppConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -68,7 +68,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.KeyValuePair>("customSettings", CustomSettings);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppDiagnosticStatus.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppDiagnosticStatus.cs
index 4a13c32db59..8d4bd1a5785 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppDiagnosticStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppDiagnosticStatus.cs
@@ -101,7 +101,7 @@ public ManagedAppDiagnosticStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ManagedAppDiagnosticStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppDiagnosticStatus();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("mitigationInstruction", MitigationInstruction);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("state", State);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppOperation.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppOperation.cs
index 4ef129f4543..84c4a9b4c6d 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppOperation.cs
@@ -74,7 +74,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppOperation();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppOperationCollectionResponse.cs
index bfabe8965e0..cf3a6dfe021 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedAppOperationCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicy.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicy.cs
index 4b5bc44253e..35cd5e0fd8b 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicy.cs
@@ -80,7 +80,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -118,7 +118,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyCollectionResponse.cs
index f5b89012ba6..288e22341ab 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedAppPolicyCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummary.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummary.cs
index 2f1e6acefd9..da7f9f473d0 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummary.cs
@@ -80,7 +80,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummary();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("configurationDeployedUserCount", ConfigurationDeployedUserCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummaryPerApp>("configurationDeploymentSummaryPerApp", ConfigurationDeploymentSummaryPerApp);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummaryPerApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummaryPerApp.cs
index 51a14f836f6..1e57c2dc04b 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummaryPerApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppPolicyDeploymentSummaryPerApp.cs
@@ -75,7 +75,7 @@ public ManagedAppPolicyDeploymentSummaryPerApp()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummaryPerApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppPolicyDeploymentSummaryPerApp();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("configurationAppliedUserCount", ConfigurationAppliedUserCount);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MobileAppIdentifier>("mobileAppIdentifier", MobileAppIdentifier);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppProtection.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppProtection.cs
index 61b51e09484..7dd215bbe51 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppProtection.cs
@@ -239,7 +239,7 @@ public ManagedAppProtection() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -293,7 +293,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.ManagedAppDataStorageLocation>("allowedDataStorageLocations", AllowedDataStorageLocations);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ManagedAppDataTransferLevel>("allowedInboundDataTransferSources", AllowedInboundDataTransferSources);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppRegistration.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppRegistration.cs
index b274c775312..0db9ff2540b 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppRegistration.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppRegistration.cs
@@ -240,7 +240,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppRegistration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -280,7 +280,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MobileAppIdentifier>("appIdentifier", AppIdentifier);
             writer.WriteStringValue("applicationVersion", ApplicationVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppRegistrationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppRegistrationCollectionResponse.cs
index ee8b2833514..632df2b9fdd 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppRegistrationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppRegistrationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedAppRegistrationCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppRegistrationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppRegistrationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppRegistration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppStatus.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppStatus.cs
index dd36390206f..01181e3d28d 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppStatus.cs
@@ -52,7 +52,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("version", Version);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppStatusCollectionResponse.cs
index 30d884b058b..77104bcd45c 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedAppStatusCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedAppStatusRaw.cs b/src/Microsoft.Graph/Generated/Models/ManagedAppStatusRaw.cs
index 8bfc7494d66..8f0e85864c5 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedAppStatusRaw.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedAppStatusRaw.cs
@@ -43,7 +43,7 @@ public ManagedAppStatusRaw() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedAppStatusRaw CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedAppStatusRaw();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<UntypedNode>("content", Content);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDevice.cs b/src/Microsoft.Graph/Generated/Models/ManagedDevice.cs
index 0c3faa7b0a8..0d73a4337ec 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDevice.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDevice.cs
@@ -760,7 +760,7 @@ public string WiFiMacAddress
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDevice CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDevice();
         }
         /// <summary>
@@ -839,7 +839,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ComplianceState>("complianceState", ComplianceState);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceCategory>("deviceCategory", DeviceCategory);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceCollectionResponse.cs
index b7c1ffc540a..fb314ace5a4 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedDeviceCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedDevice>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfiguration.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfiguration.cs
index a130ac727f2..3385d9cb711 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfiguration.cs
@@ -166,7 +166,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -201,7 +201,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment>("assignments", Assignments);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignment.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignment.cs
index ba830991a06..e3c65678f19 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignment.cs
@@ -36,7 +36,7 @@ public partial class ManagedDeviceMobileAppConfigurationAssignment : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignmentCollectionResponse.cs
index 91f6413bb95..78486df2720 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedDeviceMobileAppConfigurationAssignmentCollectionResp
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationCollectionResponse.cs
index 73f6488167d..a119126ce1d 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedDeviceMobileAppConfigurationCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatus.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatus.cs
index 51e0b369033..613618c1771 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatus.cs
@@ -102,7 +102,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus();
         }
         /// <summary>
@@ -128,7 +128,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("complianceGracePeriodExpirationDateTime", ComplianceGracePeriodExpirationDateTime);
             writer.WriteStringValue("deviceDisplayName", DeviceDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatusCollectionResponse.cs
index f4384c2cc2c..e2ecf6def4e 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedDeviceMobileAppConfigurationDeviceStatusCollectionRe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceSummary.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceSummary.cs
index 6448c135837..1e69e506456 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationDeviceSummary.cs
@@ -62,7 +62,7 @@ public int? SuccessCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationDeviceSummary();
         }
         /// <summary>
@@ -88,7 +88,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("configurationVersion", ConfigurationVersion);
             writer.WriteIntValue("errorCount", ErrorCount);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatus.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatus.cs
index 17e76c53735..fa8629e64c5 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatus.cs
@@ -70,7 +70,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("devicesCount", DevicesCount);
             writer.WriteDateTimeOffsetValue("lastReportedDateTime", LastReportedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatusCollectionResponse.cs
index 8c3a58a7929..624141930ce 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedDeviceMobileAppConfigurationUserStatusCollectionResp
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserSummary.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserSummary.cs
index 1ee421a6e4c..d2bdf574910 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceMobileAppConfigurationUserSummary.cs
@@ -62,7 +62,7 @@ public int? SuccessCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceMobileAppConfigurationUserSummary();
         }
         /// <summary>
@@ -88,7 +88,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("configurationVersion", ConfigurationVersion);
             writer.WriteIntValue("errorCount", ErrorCount);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedDeviceOverview.cs b/src/Microsoft.Graph/Generated/Models/ManagedDeviceOverview.cs
index fda4563880c..e8cbec09a17 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedDeviceOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedDeviceOverview.cs
@@ -70,7 +70,7 @@ public int? MdmEnrolledCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedDeviceOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedDeviceOverview();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceExchangeAccessStateSummary>("deviceExchangeAccessStateSummary", DeviceExchangeAccessStateSummary);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceOperatingSystemSummary>("deviceOperatingSystemSummary", DeviceOperatingSystemSummary);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedEBook.cs b/src/Microsoft.Graph/Generated/Models/ManagedEBook.cs
index abce546f21f..d7c90249a5e 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedEBook.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedEBook.cs
@@ -198,7 +198,7 @@ public string Publisher
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedEBook CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -235,7 +235,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedEBookAssignment>("assignments", Assignments);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignment.cs b/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignment.cs
index 470f606ac8d..158140d4b4f 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignment.cs
@@ -42,7 +42,7 @@ public partial class ManagedEBookAssignment : global::Microsoft.Graph.Models.Ent
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedEBookAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -68,7 +68,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.InstallIntent>("installIntent", InstallIntent);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignmentCollectionResponse.cs
index 1c5db9c1f58..c2d962479f4 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedEBookAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedEBookAssignmentCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedEBookAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedEBookAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedEBookAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedEBookCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedEBookCollectionResponse.cs
index 833e244cb61..8474a4594ee 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedEBookCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedEBookCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedEBookCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedEBookCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedEBookCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedEBook>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedIOSLobApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedIOSLobApp.cs
index a8a00b3402c..5b19904b217 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedIOSLobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedIOSLobApp.cs
@@ -113,7 +113,7 @@ public ManagedIOSLobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedIOSLobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedIOSLobApp();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IosDeviceType>("applicableDeviceType", ApplicableDeviceType);
             writer.WriteStringValue("buildNumber", BuildNumber);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedIOSLobAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedIOSLobAppCollectionResponse.cs
index 2ffebf310c7..76e9885addc 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedIOSLobAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedIOSLobAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedIOSLobAppCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedIOSLobAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedIOSLobAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedIOSLobApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedIOSStoreApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedIOSStoreApp.cs
index 76c0ac4e94b..3fe6da05121 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedIOSStoreApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedIOSStoreApp.cs
@@ -91,7 +91,7 @@ public ManagedIOSStoreApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedIOSStoreApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedIOSStoreApp();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IosDeviceType>("applicableDeviceType", ApplicableDeviceType);
             writer.WriteStringValue("appStoreUrl", AppStoreUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedMobileApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedMobileApp.cs
index c711c665fad..d5cf3de30e2 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedMobileApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedMobileApp.cs
@@ -52,7 +52,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedMobileApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedMobileApp();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MobileAppIdentifier>("mobileAppIdentifier", MobileAppIdentifier);
             writer.WriteStringValue("version", Version);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedMobileAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedMobileAppCollectionResponse.cs
index a449b49ba7c..4e5bc0ebbed 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedMobileAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedMobileAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedMobileAppCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedMobileAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedMobileAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedMobileLobApp.cs b/src/Microsoft.Graph/Generated/Models/ManagedMobileLobApp.cs
index abcaa0a05f0..6a536d21b2c 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedMobileLobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedMobileLobApp.cs
@@ -81,7 +81,7 @@ public ManagedMobileLobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedMobileLobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("committedContentVersion", CommittedContentVersion);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppContent>("contentVersions", ContentVersions);
diff --git a/src/Microsoft.Graph/Generated/Models/ManagedMobileLobAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ManagedMobileLobAppCollectionResponse.cs
index 8208dc311e9..86ffb8bf13f 100644
--- a/src/Microsoft.Graph/Generated/Models/ManagedMobileLobAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ManagedMobileLobAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManagedMobileLobAppCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ManagedMobileLobAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ManagedMobileLobAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileLobApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicy.cs b/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicy.cs
index ccd8d559c67..9648e240bdb 100644
--- a/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicy.cs
@@ -27,7 +27,7 @@ public MdmWindowsInformationProtectionPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicyCollectionResponse.cs
index ef43db75c6d..8938823191a 100644
--- a/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MdmWindowsInformationProtectionPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MdmWindowsInformationProtectionPolicyCollectionResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MdmWindowsInformationProtectionPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MediaConfig.cs b/src/Microsoft.Graph/Generated/Models/MediaConfig.cs
index 73e1d8c20d8..5894c9d305a 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaConfig.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaConfig.cs
@@ -52,7 +52,7 @@ public MediaConfig()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaConfig CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingAustralia.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingAustralia.cs
index a5904f6a55d..3c178828fdc 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingAustralia.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingAustralia.cs
@@ -64,7 +64,7 @@ public MediaContentRatingAustralia()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingAustralia CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingAustralia();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingAustraliaMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingAustraliaTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingCanada.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingCanada.cs
index d66848e4744..dcc4d0c0c0d 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingCanada.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingCanada.cs
@@ -64,7 +64,7 @@ public MediaContentRatingCanada()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingCanada CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingCanada();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingCanadaMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingCanadaTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingFrance.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingFrance.cs
index 73c30c5e295..bf6ee30078d 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingFrance.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingFrance.cs
@@ -64,7 +64,7 @@ public MediaContentRatingFrance()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingFrance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingFrance();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingFranceMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingFranceTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingGermany.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingGermany.cs
index 1170e416434..fd913e57eb2 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingGermany.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingGermany.cs
@@ -64,7 +64,7 @@ public MediaContentRatingGermany()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingGermany CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingGermany();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingGermanyMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingGermanyTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingIreland.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingIreland.cs
index b09ca712969..2c0c9e6c223 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingIreland.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingIreland.cs
@@ -64,7 +64,7 @@ public MediaContentRatingIreland()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingIreland CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingIreland();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingIrelandMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingIrelandTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingJapan.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingJapan.cs
index dca7bc10017..01279522698 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingJapan.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingJapan.cs
@@ -64,7 +64,7 @@ public MediaContentRatingJapan()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingJapan CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingJapan();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingJapanMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingJapanTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingNewZealand.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingNewZealand.cs
index 766d79b9aa2..822e39a32c6 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingNewZealand.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingNewZealand.cs
@@ -64,7 +64,7 @@ public MediaContentRatingNewZealand()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingNewZealand CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingNewZealand();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingNewZealandMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingNewZealandTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedKingdom.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedKingdom.cs
index d17e20935d1..df770ce328b 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedKingdom.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedKingdom.cs
@@ -64,7 +64,7 @@ public MediaContentRatingUnitedKingdom()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingUnitedKingdom CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingUnitedKingdom();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingUnitedKingdomMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingUnitedKingdomTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedStates.cs b/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedStates.cs
index 275e76d28e6..d2deaf2a7b2 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedStates.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaContentRatingUnitedStates.cs
@@ -64,7 +64,7 @@ public MediaContentRatingUnitedStates()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaContentRatingUnitedStates CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaContentRatingUnitedStates();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingUnitedStatesMoviesType>("movieRating", MovieRating);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RatingUnitedStatesTelevisionType>("tvRating", TvRating);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaInfo.cs b/src/Microsoft.Graph/Generated/Models/MediaInfo.cs
index 420d846b69a..4ced495e24f 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaInfo.cs
@@ -84,7 +84,7 @@ public MediaInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaInfo();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("resourceId", ResourceId);
             writer.WriteStringValue("uri", Uri);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaPrompt.cs b/src/Microsoft.Graph/Generated/Models/MediaPrompt.cs
index 1d654e9f2e7..62088481ff3 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaPrompt.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaPrompt.cs
@@ -42,7 +42,7 @@ public MediaPrompt() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MediaPrompt CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaPrompt();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MediaInfo>("mediaInfo", MediaInfo);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MediaSource.cs b/src/Microsoft.Graph/Generated/Models/MediaSource.cs
index a280da1db2b..2dc96b7ef70 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaSource.cs
@@ -58,7 +58,7 @@ public MediaSource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaSource();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MediaSourceContentCategory>("contentCategory", ContentCategory);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/MediaStream.cs b/src/Microsoft.Graph/Generated/Models/MediaStream.cs
index 6b0fb327a40..e0810842eef 100644
--- a/src/Microsoft.Graph/Generated/Models/MediaStream.cs
+++ b/src/Microsoft.Graph/Generated/Models/MediaStream.cs
@@ -102,7 +102,7 @@ public MediaStream()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MediaStream CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MediaStream();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MediaDirection>("direction", Direction);
             writer.WriteStringValue("label", Label);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Modality>("mediaType", MediaType);
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReport.cs b/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReport.cs
index c767fd128c1..ece923ccf27 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReport.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReport.cs
@@ -69,7 +69,7 @@ public int? TotalParticipantCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MeetingAttendanceReport CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MeetingAttendanceReport();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendanceRecord>("attendanceRecords", AttendanceRecords);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventExternalInformation>("externalEventInformation", ExternalEventInformation);
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReportCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReportCollectionResponse.cs
index ecca5bd4351..51c1ae724ca 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReportCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingAttendanceReportCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MeetingAttendanceReportCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MeetingAttendanceReportCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MeetingAttendanceReportCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MeetingAttendanceReport>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingInfo.cs b/src/Microsoft.Graph/Generated/Models/MeetingInfo.cs
index 3eb5a0d84e7..6065de75d0f 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingInfo.cs
@@ -52,7 +52,7 @@ public MeetingInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MeetingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingParticipantInfo.cs b/src/Microsoft.Graph/Generated/Models/MeetingParticipantInfo.cs
index 22258134897..1554d2dab7b 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingParticipantInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingParticipantInfo.cs
@@ -90,7 +90,7 @@ public MeetingParticipantInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MeetingParticipantInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -118,7 +118,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("identity", Identity);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.OnlineMeetingRole>("role", Role);
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingParticipants.cs b/src/Microsoft.Graph/Generated/Models/MeetingParticipants.cs
index 921bc01ddf1..d730fb031dd 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingParticipants.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingParticipants.cs
@@ -84,7 +84,7 @@ public MeetingParticipants()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MeetingParticipants CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MeetingParticipants();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MeetingParticipantInfo>("attendees", Attendees);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MeetingParticipantInfo>("organizer", Organizer);
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingPolicyUpdatedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/MeetingPolicyUpdatedEventMessageDetail.cs
index f03c7574130..22eb220ba97 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingPolicyUpdatedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingPolicyUpdatedEventMessageDetail.cs
@@ -64,7 +64,7 @@ public MeetingPolicyUpdatedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MeetingPolicyUpdatedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MeetingPolicyUpdatedEventMessageDetail();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteBoolValue("meetingChatEnabled", MeetingChatEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestion.cs b/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestion.cs
index 23c51be1a4b..c2db19abfe5 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestion.cs
@@ -134,7 +134,7 @@ public MeetingTimeSuggestion()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MeetingTimeSuggestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MeetingTimeSuggestion();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeAvailability>("attendeeAvailability", AttendeeAvailability);
             writer.WriteDoubleValue("confidence", Confidence);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Location>("locations", Locations);
diff --git a/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestionsResult.cs b/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestionsResult.cs
index f2222520afa..785a84525ef 100644
--- a/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestionsResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/MeetingTimeSuggestionsResult.cs
@@ -84,7 +84,7 @@ public MeetingTimeSuggestionsResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MeetingTimeSuggestionsResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MeetingTimeSuggestionsResult();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("emptySuggestionsReason", EmptySuggestionsReason);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MeetingTimeSuggestion>("meetingTimeSuggestions", MeetingTimeSuggestions);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/MembersAddedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/MembersAddedEventMessageDetail.cs
index ee7ba95c0d2..bb4a728761e 100644
--- a/src/Microsoft.Graph/Generated/Models/MembersAddedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/MembersAddedEventMessageDetail.cs
@@ -64,7 +64,7 @@ public MembersAddedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MembersAddedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MembersAddedEventMessageDetail();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamworkUserIdentity>("members", Members);
diff --git a/src/Microsoft.Graph/Generated/Models/MembersDeletedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/MembersDeletedEventMessageDetail.cs
index 741f77f95c5..0418d288a00 100644
--- a/src/Microsoft.Graph/Generated/Models/MembersDeletedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/MembersDeletedEventMessageDetail.cs
@@ -58,7 +58,7 @@ public MembersDeletedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MembersDeletedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MembersDeletedEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamworkUserIdentity>("members", Members);
diff --git a/src/Microsoft.Graph/Generated/Models/MembersJoinedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/MembersJoinedEventMessageDetail.cs
index a53c16a44e8..9b945164c91 100644
--- a/src/Microsoft.Graph/Generated/Models/MembersJoinedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/MembersJoinedEventMessageDetail.cs
@@ -58,7 +58,7 @@ public MembersJoinedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MembersJoinedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MembersJoinedEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamworkUserIdentity>("members", Members);
diff --git a/src/Microsoft.Graph/Generated/Models/MembersLeftEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/MembersLeftEventMessageDetail.cs
index 51eca0fef45..13145489946 100644
--- a/src/Microsoft.Graph/Generated/Models/MembersLeftEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/MembersLeftEventMessageDetail.cs
@@ -58,7 +58,7 @@ public MembersLeftEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MembersLeftEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MembersLeftEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamworkUserIdentity>("members", Members);
diff --git a/src/Microsoft.Graph/Generated/Models/MembershipOutlierInsight.cs b/src/Microsoft.Graph/Generated/Models/MembershipOutlierInsight.cs
index 5b14614a49f..507c84bc02d 100644
--- a/src/Microsoft.Graph/Generated/Models/MembershipOutlierInsight.cs
+++ b/src/Microsoft.Graph/Generated/Models/MembershipOutlierInsight.cs
@@ -118,7 +118,7 @@ public MembershipOutlierInsight() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MembershipOutlierInsight CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MembershipOutlierInsight();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DirectoryObject>("container", Container);
             writer.WriteStringValue("containerId", ContainerId);
diff --git a/src/Microsoft.Graph/Generated/Models/Message.cs b/src/Microsoft.Graph/Generated/Models/Message.cs
index d65381b46eb..70565bcf412 100644
--- a/src/Microsoft.Graph/Generated/Models/Message.cs
+++ b/src/Microsoft.Graph/Generated/Models/Message.cs
@@ -416,7 +416,7 @@ public Message() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Message CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -473,7 +473,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Attachment>("attachments", Attachments);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("bccRecipients", BccRecipients);
diff --git a/src/Microsoft.Graph/Generated/Models/MessageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MessageCollectionResponse.cs
index e0665f17e65..23f89b9f948 100644
--- a/src/Microsoft.Graph/Generated/Models/MessageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MessageCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MessageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Message>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MessagePinnedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/MessagePinnedEventMessageDetail.cs
index 4ea4423b619..8086e5b5a90 100644
--- a/src/Microsoft.Graph/Generated/Models/MessagePinnedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessagePinnedEventMessageDetail.cs
@@ -48,7 +48,7 @@ public MessagePinnedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MessagePinnedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessagePinnedEventMessageDetail();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("eventDateTime", EventDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
diff --git a/src/Microsoft.Graph/Generated/Models/MessageRule.cs b/src/Microsoft.Graph/Generated/Models/MessageRule.cs
index 41497944772..8afca11550d 100644
--- a/src/Microsoft.Graph/Generated/Models/MessageRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessageRule.cs
@@ -107,7 +107,7 @@ public int? Sequence
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MessageRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessageRule();
         }
         /// <summary>
@@ -134,7 +134,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MessageRuleActions>("actions", Actions);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MessageRulePredicates>("conditions", Conditions);
diff --git a/src/Microsoft.Graph/Generated/Models/MessageRuleActions.cs b/src/Microsoft.Graph/Generated/Models/MessageRuleActions.cs
index 9e5b24fa3fe..c5841b5a217 100644
--- a/src/Microsoft.Graph/Generated/Models/MessageRuleActions.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessageRuleActions.cs
@@ -178,7 +178,7 @@ public MessageRuleActions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MessageRuleActions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessageRuleActions();
         }
         /// <summary>
@@ -209,7 +209,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("assignCategories", AssignCategories);
             writer.WriteStringValue("copyToFolder", CopyToFolder);
             writer.WriteBoolValue("delete", Delete);
diff --git a/src/Microsoft.Graph/Generated/Models/MessageRuleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MessageRuleCollectionResponse.cs
index 5e5220b1b1e..a97ca4be907 100644
--- a/src/Microsoft.Graph/Generated/Models/MessageRuleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessageRuleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MessageRuleCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MessageRuleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessageRuleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MessageRule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MessageRulePredicates.cs b/src/Microsoft.Graph/Generated/Models/MessageRulePredicates.cs
index c73453a9a2f..8ccd7ad1fbf 100644
--- a/src/Microsoft.Graph/Generated/Models/MessageRulePredicates.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessageRulePredicates.cs
@@ -332,7 +332,7 @@ public MessageRulePredicates()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MessageRulePredicates CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessageRulePredicates();
         }
         /// <summary>
@@ -382,7 +382,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("bodyContains", BodyContains);
             writer.WriteCollectionOfPrimitiveValues<string>("bodyOrSubjectContains", BodyOrSubjectContains);
             writer.WriteCollectionOfPrimitiveValues<string>("categories", Categories);
diff --git a/src/Microsoft.Graph/Generated/Models/MessageSecurityState.cs b/src/Microsoft.Graph/Generated/Models/MessageSecurityState.cs
index eabd468e325..f8efec1b0e5 100644
--- a/src/Microsoft.Graph/Generated/Models/MessageSecurityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessageSecurityState.cs
@@ -186,7 +186,7 @@ public MessageSecurityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MessageSecurityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessageSecurityState();
         }
         /// <summary>
@@ -215,7 +215,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("connectingIP", ConnectingIP);
             writer.WriteStringValue("deliveryAction", DeliveryAction);
             writer.WriteStringValue("deliveryLocation", DeliveryLocation);
diff --git a/src/Microsoft.Graph/Generated/Models/MessageUnpinnedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/MessageUnpinnedEventMessageDetail.cs
index 1cae064c84d..a5ff6b82554 100644
--- a/src/Microsoft.Graph/Generated/Models/MessageUnpinnedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/MessageUnpinnedEventMessageDetail.cs
@@ -48,7 +48,7 @@ public MessageUnpinnedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MessageUnpinnedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MessageUnpinnedEventMessageDetail();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("eventDateTime", EventDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
diff --git a/src/Microsoft.Graph/Generated/Models/MetaDataKeyStringPair.cs b/src/Microsoft.Graph/Generated/Models/MetaDataKeyStringPair.cs
index d4681b26948..64d457ce0f7 100644
--- a/src/Microsoft.Graph/Generated/Models/MetaDataKeyStringPair.cs
+++ b/src/Microsoft.Graph/Generated/Models/MetaDataKeyStringPair.cs
@@ -84,7 +84,7 @@ public MetaDataKeyStringPair()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MetaDataKeyStringPair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MetaDataKeyStringPair();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftAccountUserConversationMember.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftAccountUserConversationMember.cs
index 9e870333929..99d2ca8f365 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftAccountUserConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftAccountUserConversationMember.cs
@@ -42,7 +42,7 @@ public MicrosoftAccountUserConversationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftAccountUserConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftAccountUserConversationMember();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userId", UserId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethod.cs
index 70e61341936..4754d396c9f 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethod.cs
@@ -96,7 +96,7 @@ public MicrosoftAuthenticatorAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethod();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Device>("device", Device);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodCollectionResponse.cs
index fe59b6685a4..30cac3c2abe 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MicrosoftAuthenticatorAuthenticationMethodCollectionRespons
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodConfiguration.cs
index 616ef3436cb..6a56a99d4d8 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodConfiguration.cs
@@ -64,7 +64,7 @@ public MicrosoftAuthenticatorAuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MicrosoftAuthenticatorFeatureSettings>("featureSettings", FeatureSettings);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethodTarget>("includeTargets", IncludeTargets);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodTarget.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodTarget.cs
index 0890a03a8a9..37db9c882a6 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorAuthenticationMethodTarget.cs
@@ -25,7 +25,7 @@ public partial class MicrosoftAuthenticatorAuthenticationMethodTarget : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethodTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMethodTarget();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MicrosoftAuthenticatorAuthenticationMode>("authenticationMode", AuthenticationMode);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorFeatureSettings.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorFeatureSettings.cs
index f8d0e83bee1..a45b8be9874 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorFeatureSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftAuthenticatorFeatureSettings.cs
@@ -84,7 +84,7 @@ public MicrosoftAuthenticatorFeatureSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MicrosoftAuthenticatorFeatureSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftAuthenticatorFeatureSettings();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationMethodFeatureConfiguration>("displayAppInformationRequiredState", DisplayAppInformationRequiredState);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationMethodFeatureConfiguration>("displayLocationInformationRequiredState", DisplayLocationInformationRequiredState);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftCustomTrainingSetting.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftCustomTrainingSetting.cs
index a78e958da66..d1b5cea84fc 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftCustomTrainingSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftCustomTrainingSetting.cs
@@ -54,7 +54,7 @@ public MicrosoftCustomTrainingSetting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftCustomTrainingSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftCustomTrainingSetting();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completionDateTime", CompletionDateTime);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MicrosoftTrainingAssignmentMapping>("trainingAssignmentMappings", TrainingAssignmentMappings);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftManagedDesktop.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftManagedDesktop.cs
index 459aab097bc..22b82d18b99 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftManagedDesktop.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftManagedDesktop.cs
@@ -74,7 +74,7 @@ public MicrosoftManagedDesktop()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MicrosoftManagedDesktop CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftManagedDesktop();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MicrosoftManagedDesktopType>("managedType", ManagedType);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("profile", Profile);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftManagedTrainingSetting.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftManagedTrainingSetting.cs
index 0f95c02c5f9..d6a88f10f95 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftManagedTrainingSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftManagedTrainingSetting.cs
@@ -38,7 +38,7 @@ public MicrosoftManagedTrainingSetting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftManagedTrainingSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftManagedTrainingSetting();
         }
         /// <summary>
@@ -59,7 +59,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completionDateTime", CompletionDateTime);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TrainingCompletionDuration>("trainingCompletionDuration", TrainingCompletionDuration);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessApp.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessApp.cs
index 7fc923dc9d5..3f068c262b6 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessApp.cs
@@ -77,7 +77,7 @@ public MicrosoftStoreForBusinessApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftStoreForBusinessApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftStoreForBusinessApp();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MicrosoftStoreForBusinessLicenseType>("licenseType", LicenseType);
             writer.WriteStringValue("packageIdentityName", PackageIdentityName);
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppAssignmentSettings.cs
index 8d312874450..214b6bfd35c 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppAssignmentSettings.cs
@@ -33,7 +33,7 @@ public MicrosoftStoreForBusinessAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftStoreForBusinessAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftStoreForBusinessAppAssignmentSettings();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("useDeviceContext", UseDeviceContext);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppCollectionResponse.cs
index ab0353116de..f0c012f3c5d 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftStoreForBusinessAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MicrosoftStoreForBusinessAppCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftStoreForBusinessAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftStoreForBusinessAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MicrosoftStoreForBusinessApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MicrosoftTrainingAssignmentMapping.cs b/src/Microsoft.Graph/Generated/Models/MicrosoftTrainingAssignmentMapping.cs
index c5b18a9fd32..cdf02e61083 100644
--- a/src/Microsoft.Graph/Generated/Models/MicrosoftTrainingAssignmentMapping.cs
+++ b/src/Microsoft.Graph/Generated/Models/MicrosoftTrainingAssignmentMapping.cs
@@ -58,7 +58,7 @@ public MicrosoftTrainingAssignmentMapping() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MicrosoftTrainingAssignmentMapping CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MicrosoftTrainingAssignmentMapping();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.TrainingAssignedTo>("assignedTo", AssignedTo);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Training>("training", Training);
diff --git a/src/Microsoft.Graph/Generated/Models/MimeContent.cs b/src/Microsoft.Graph/Generated/Models/MimeContent.cs
index 68207e0544e..97248cc767f 100644
--- a/src/Microsoft.Graph/Generated/Models/MimeContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/MimeContent.cs
@@ -85,7 +85,7 @@ public MimeContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MimeContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MimeContent();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("type", Type);
             writer.WriteByteArrayValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileApp.cs b/src/Microsoft.Graph/Generated/Models/MobileApp.cs
index ad11c899dcf..019ebd4c8e7 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileApp.cs
@@ -220,7 +220,7 @@ public string Publisher
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -284,7 +284,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppAssignment>("assignments", Assignments);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppCategory>("categories", Categories);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppAssignment.cs b/src/Microsoft.Graph/Generated/Models/MobileAppAssignment.cs
index 8ade79119f2..0ebcfe5f8f8 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppAssignment.cs
@@ -58,7 +58,7 @@ public partial class MobileAppAssignment : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppAssignment();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.InstallIntent>("intent", Intent);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MobileAppAssignmentSettings>("settings", Settings);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentCollectionResponse.cs
index ad153b9d04e..92c23055edd 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileAppAssignmentCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentSettings.cs
index 30dbfe2d699..6ebd5911f7a 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppAssignmentSettings.cs
@@ -53,7 +53,7 @@ public MobileAppAssignmentSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MobileAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppCategory.cs b/src/Microsoft.Graph/Generated/Models/MobileAppCategory.cs
index 0b6904797e2..0f435d771ee 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppCategory.cs
@@ -42,7 +42,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppCategory();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppCategoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileAppCategoryCollectionResponse.cs
index 40f7da3806c..b211c15fdb8 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppCategoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppCategoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileAppCategoryCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppCategoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppCategoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileAppCollectionResponse.cs
index 84d48e1248d..1c72c2655f2 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileAppCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppContent.cs b/src/Microsoft.Graph/Generated/Models/MobileAppContent.cs
index 5e3e2526384..22c78f09770 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppContent.cs
@@ -52,7 +52,7 @@ public partial class MobileAppContent : global::Microsoft.Graph.Models.Entity, I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppContent();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileContainedApp>("containedApps", ContainedApps);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppContentFile>("files", Files);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppContentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileAppContentCollectionResponse.cs
index d962010c5c3..d6c0d1e60b2 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppContentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppContentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileAppContentCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppContentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppContentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppContent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppContentFile.cs b/src/Microsoft.Graph/Generated/Models/MobileAppContentFile.cs
index 7433bea9d8e..2d865bd0f19 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppContentFile.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppContentFile.cs
@@ -110,7 +110,7 @@ public long? SizeEncrypted
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppContentFile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppContentFile();
         }
         /// <summary>
@@ -139,7 +139,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isDependency", IsDependency);
             writer.WriteByteArrayValue("manifest", Manifest);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppContentFileCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileAppContentFileCollectionResponse.cs
index 0a3828dc117..27f2a220a76 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppContentFileCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppContentFileCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileAppContentFileCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppContentFileCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppContentFileCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppContentFile>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppIdentifier.cs b/src/Microsoft.Graph/Generated/Models/MobileAppIdentifier.cs
index ab4c5de2ef5..fe135a156a2 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppIdentifier.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppIdentifier.cs
@@ -53,7 +53,7 @@ public MobileAppIdentifier()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MobileAppIdentifier CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppInstallTimeSettings.cs b/src/Microsoft.Graph/Generated/Models/MobileAppInstallTimeSettings.cs
index 15330fc09df..129b3bcd8d5 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppInstallTimeSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppInstallTimeSettings.cs
@@ -71,7 +71,7 @@ public MobileAppInstallTimeSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MobileAppInstallTimeSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppInstallTimeSettings();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("deadlineDateTime", DeadlineDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppRelationship.cs b/src/Microsoft.Graph/Generated/Models/MobileAppRelationship.cs
index 7e18a953d95..31d94c98f3c 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppRelationship.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppRelationship.cs
@@ -148,7 +148,7 @@ public string TargetPublisherDisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppRelationship CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppRelationship();
         }
         /// <summary>
@@ -175,7 +175,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("targetId", TargetId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppRelationshipCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileAppRelationshipCollectionResponse.cs
index 66f8837e946..f87dcc2ae82 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppRelationshipCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppRelationshipCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileAppRelationshipCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppRelationshipCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppRelationshipCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppRelationship>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEvent.cs b/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEvent.cs
index 35f6dd127dc..dd75891e719 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEvent.cs
@@ -35,7 +35,7 @@ public partial class MobileAppTroubleshootingEvent : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AppLogCollectionRequest>("appLogCollectionRequests", AppLogCollectionRequests);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEventCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEventCollectionResponse.cs
index 25ad604f626..6e941beb850 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEventCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileAppTroubleshootingEventCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileAppTroubleshootingEventCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileAppTroubleshootingEventCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileAppTroubleshootingEventCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppTroubleshootingEvent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileContainedApp.cs b/src/Microsoft.Graph/Generated/Models/MobileContainedApp.cs
index f6a019e859f..248eb53d893 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileContainedApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileContainedApp.cs
@@ -20,7 +20,7 @@ public partial class MobileContainedApp : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileContainedApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -44,7 +44,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileContainedAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileContainedAppCollectionResponse.cs
index eb4fe2d5f81..ccde41761a4 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileContainedAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileContainedAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileContainedAppCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileContainedAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileContainedAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileContainedApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MobileLobApp.cs b/src/Microsoft.Graph/Generated/Models/MobileLobApp.cs
index 2defb356973..527049eafd7 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileLobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileLobApp.cs
@@ -81,7 +81,7 @@ public MobileLobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileLobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -116,7 +116,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("committedContentVersion", CommittedContentVersion);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileAppContent>("contentVersions", ContentVersions);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnector.cs b/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnector.cs
index 229baf69530..8aa62802699 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnector.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnector.cs
@@ -110,7 +110,7 @@ public bool? WindowsEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileThreatDefenseConnector CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileThreatDefenseConnector();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowPartnerToCollectIOSApplicationMetadata", AllowPartnerToCollectIOSApplicationMetadata);
             writer.WriteBoolValue("allowPartnerToCollectIOSPersonalApplicationMetadata", AllowPartnerToCollectIOSPersonalApplicationMetadata);
diff --git a/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnectorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnectorCollectionResponse.cs
index 2cdbc51d697..8bd407c81b6 100644
--- a/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnectorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MobileThreatDefenseConnectorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MobileThreatDefenseConnectorCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MobileThreatDefenseConnectorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MobileThreatDefenseConnectorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MobileThreatDefenseConnector>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ModifiedProperty.cs b/src/Microsoft.Graph/Generated/Models/ModifiedProperty.cs
index ce812bf2b5c..11aadc00fdd 100644
--- a/src/Microsoft.Graph/Generated/Models/ModifiedProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/ModifiedProperty.cs
@@ -100,7 +100,7 @@ public ModifiedProperty()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ModifiedProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ModifiedProperty();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("newValue", NewValue);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganization.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganization.cs
index 10e2581590d..7ee53b36e94 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganization.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganization.cs
@@ -95,7 +95,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MultiTenantOrganization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganization();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationIdentitySyncPolicyTemplate.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationIdentitySyncPolicyTemplate.cs
index 43105657e74..225533a6db5 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationIdentitySyncPolicyTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationIdentitySyncPolicyTemplate.cs
@@ -41,7 +41,7 @@ public partial class MultiTenantOrganizationIdentitySyncPolicyTemplate : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MultiTenantOrganizationIdentitySyncPolicyTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganizationIdentitySyncPolicyTemplate();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TemplateApplicationLevel>("templateApplicationLevel", TemplateApplicationLevel);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantUserSyncInbound>("userSyncInbound", UserSyncInbound);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestRecord.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestRecord.cs
index b66327d16b1..da9d53abbc3 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestRecord.cs
@@ -63,7 +63,7 @@ public string AddedByTenantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MultiTenantOrganizationJoinRequestRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganizationJoinRequestRecord();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("addedByTenantId", AddedByTenantId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MultiTenantOrganizationMemberState>("memberState", MemberState);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestTransitionDetails.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestTransitionDetails.cs
index 2e34db3bfcd..cb9a41555c8 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestTransitionDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationJoinRequestTransitionDetails.cs
@@ -80,7 +80,7 @@ public MultiTenantOrganizationJoinRequestTransitionDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MultiTenantOrganizationJoinRequestTransitionDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganizationJoinRequestTransitionDetails();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MultiTenantOrganizationMemberState>("desiredMemberState", DesiredMemberState);
             writer.WriteStringValue("details", Details);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMember.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMember.cs
index f9dc6cc9ade..30bb7bd99c5 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMember.cs
@@ -104,7 +104,7 @@ public MultiTenantOrganizationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MultiTenantOrganizationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganizationMember();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteGuidValue("addedByTenantId", AddedByTenantId);
             writer.WriteDateTimeOffsetValue("addedDateTime", AddedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberCollectionResponse.cs
index 6fb76582393..b7b44b00224 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class MultiTenantOrganizationMemberCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MultiTenantOrganizationMemberCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganizationMemberCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MultiTenantOrganizationMember>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberTransitionDetails.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberTransitionDetails.cs
index e8163408f5d..779007e64d3 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberTransitionDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationMemberTransitionDetails.cs
@@ -86,7 +86,7 @@ public MultiTenantOrganizationMemberTransitionDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.MultiTenantOrganizationMemberTransitionDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganizationMemberTransitionDetails();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MultiTenantOrganizationMemberRole>("desiredRole", DesiredRole);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MultiTenantOrganizationMemberState>("desiredState", DesiredState);
             writer.WriteStringValue("details", Details);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationPartnerConfigurationTemplate.cs b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationPartnerConfigurationTemplate.cs
index be0fd11ca8d..dc6bb7e223c 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationPartnerConfigurationTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiTenantOrganizationPartnerConfigurationTemplate.cs
@@ -121,7 +121,7 @@ public partial class MultiTenantOrganizationPartnerConfigurationTemplate : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MultiTenantOrganizationPartnerConfigurationTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiTenantOrganizationPartnerConfigurationTemplate();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.InboundOutboundPolicyConfiguration>("automaticUserConsentSettings", AutomaticUserConsentSettings);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CrossTenantAccessPolicyB2BSetting>("b2bCollaborationInbound", B2bCollaborationInbound);
diff --git a/src/Microsoft.Graph/Generated/Models/MultiValueLegacyExtendedProperty.cs b/src/Microsoft.Graph/Generated/Models/MultiValueLegacyExtendedProperty.cs
index b2cc704b176..72f55081242 100644
--- a/src/Microsoft.Graph/Generated/Models/MultiValueLegacyExtendedProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/MultiValueLegacyExtendedProperty.cs
@@ -35,7 +35,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MultiValueLegacyExtendedProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MultiValueLegacyExtendedProperty();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/MuteParticipantOperation.cs b/src/Microsoft.Graph/Generated/Models/MuteParticipantOperation.cs
index bf9148b94c1..3d413a1a0a4 100644
--- a/src/Microsoft.Graph/Generated/Models/MuteParticipantOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/MuteParticipantOperation.cs
@@ -19,7 +19,7 @@ public partial class MuteParticipantOperation : global::Microsoft.Graph.Models.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.MuteParticipantOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.MuteParticipantOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/NamedLocation.cs b/src/Microsoft.Graph/Generated/Models/NamedLocation.cs
index 04d8311ec63..7d58652e278 100644
--- a/src/Microsoft.Graph/Generated/Models/NamedLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/NamedLocation.cs
@@ -47,7 +47,7 @@ public DateTimeOffset? ModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NamedLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -75,7 +75,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/NamedLocationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/NamedLocationCollectionResponse.cs
index 171d143823b..7f0782e6a2d 100644
--- a/src/Microsoft.Graph/Generated/Models/NamedLocationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/NamedLocationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class NamedLocationCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NamedLocationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NamedLocationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.NamedLocation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/NetworkConnection.cs b/src/Microsoft.Graph/Generated/Models/NetworkConnection.cs
index eb1f5d2df15..ae4c37c5bf1 100644
--- a/src/Microsoft.Graph/Generated/Models/NetworkConnection.cs
+++ b/src/Microsoft.Graph/Generated/Models/NetworkConnection.cs
@@ -332,7 +332,7 @@ public NetworkConnection()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.NetworkConnection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NetworkConnection();
         }
         /// <summary>
@@ -372,7 +372,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationName", ApplicationName);
             writer.WriteStringValue("destinationAddress", DestinationAddress);
             writer.WriteStringValue("destinationDomain", DestinationDomain);
diff --git a/src/Microsoft.Graph/Generated/Models/NoDeviceRegistrationMembership.cs b/src/Microsoft.Graph/Generated/Models/NoDeviceRegistrationMembership.cs
index 5d768630c51..646839cf79f 100644
--- a/src/Microsoft.Graph/Generated/Models/NoDeviceRegistrationMembership.cs
+++ b/src/Microsoft.Graph/Generated/Models/NoDeviceRegistrationMembership.cs
@@ -26,7 +26,7 @@ public NoDeviceRegistrationMembership() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NoDeviceRegistrationMembership CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NoDeviceRegistrationMembership();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/NoTrainingNotificationSetting.cs b/src/Microsoft.Graph/Generated/Models/NoTrainingNotificationSetting.cs
index f4e3b914ed7..ac36d2897c8 100644
--- a/src/Microsoft.Graph/Generated/Models/NoTrainingNotificationSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/NoTrainingNotificationSetting.cs
@@ -42,7 +42,7 @@ public NoTrainingNotificationSetting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NoTrainingNotificationSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NoTrainingNotificationSetting();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SimulationNotification>("simulationNotification", SimulationNotification);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/NoTrainingSetting.cs b/src/Microsoft.Graph/Generated/Models/NoTrainingSetting.cs
index 9459fa6cdbe..04c9833e3d3 100644
--- a/src/Microsoft.Graph/Generated/Models/NoTrainingSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/NoTrainingSetting.cs
@@ -26,7 +26,7 @@ public NoTrainingSetting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NoTrainingSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NoTrainingSetting();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Notebook.cs b/src/Microsoft.Graph/Generated/Models/Notebook.cs
index a43b4671162..d6d626b96e7 100644
--- a/src/Microsoft.Graph/Generated/Models/Notebook.cs
+++ b/src/Microsoft.Graph/Generated/Models/Notebook.cs
@@ -124,7 +124,7 @@ public Notebook() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Notebook CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Notebook();
         }
         /// <summary>
@@ -151,7 +151,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isDefault", IsDefault);
             writer.WriteBoolValue("isShared", IsShared);
diff --git a/src/Microsoft.Graph/Generated/Models/NotebookCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/NotebookCollectionResponse.cs
index 120be1a00c6..340da474639 100644
--- a/src/Microsoft.Graph/Generated/Models/NotebookCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/NotebookCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class NotebookCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NotebookCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NotebookCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Notebook>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/NotebookLinks.cs b/src/Microsoft.Graph/Generated/Models/NotebookLinks.cs
index b3b1402425f..c2cab0df410 100644
--- a/src/Microsoft.Graph/Generated/Models/NotebookLinks.cs
+++ b/src/Microsoft.Graph/Generated/Models/NotebookLinks.cs
@@ -84,7 +84,7 @@ public NotebookLinks()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.NotebookLinks CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NotebookLinks();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteClientUrl", OneNoteClientUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteWebUrl", OneNoteWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplate.cs b/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplate.cs
index 1df0c28cfdc..df94b1a8085 100644
--- a/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplate.cs
@@ -96,7 +96,7 @@ public List<string> RoleScopeTagIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NotificationMessageTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NotificationMessageTemplate();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.NotificationTemplateBrandingOptions>("brandingOptions", BrandingOptions);
             writer.WriteStringValue("defaultLocale", DefaultLocale);
diff --git a/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplateCollectionResponse.cs
index 37755abb321..83ed07d02d7 100644
--- a/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/NotificationMessageTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class NotificationMessageTemplateCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.NotificationMessageTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NotificationMessageTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.NotificationMessageTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/NumberColumn.cs b/src/Microsoft.Graph/Generated/Models/NumberColumn.cs
index 2893807a89e..56293ecd03b 100644
--- a/src/Microsoft.Graph/Generated/Models/NumberColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/NumberColumn.cs
@@ -96,7 +96,7 @@ public NumberColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.NumberColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.NumberColumn();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("decimalPlaces", DecimalPlaces);
             writer.WriteStringValue("displayAs", DisplayAs);
             writer.WriteDoubleValue("maximum", Maximum);
diff --git a/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrant.cs b/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrant.cs
index 432807a899c..f0d87caec83 100644
--- a/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrant.cs
+++ b/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrant.cs
@@ -99,7 +99,7 @@ public string Scope
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OAuth2PermissionGrant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OAuth2PermissionGrant();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("clientId", ClientId);
             writer.WriteStringValue("consentType", ConsentType);
diff --git a/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrantCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrantCollectionResponse.cs
index 621712a2aa4..3209fd850a4 100644
--- a/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrantCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OAuth2PermissionGrantCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OAuth2PermissionGrantCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OAuth2PermissionGrantCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OAuth2PermissionGrantCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OAuth2PermissionGrant>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OAuthConsentAppDetail.cs b/src/Microsoft.Graph/Generated/Models/OAuthConsentAppDetail.cs
index 6806a7b1913..94fcd35a385 100644
--- a/src/Microsoft.Graph/Generated/Models/OAuthConsentAppDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/OAuthConsentAppDetail.cs
@@ -90,7 +90,7 @@ public OAuthConsentAppDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OAuthConsentAppDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OAuthConsentAppDetail();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.OAuthAppScope>("appScope", AppScope);
             writer.WriteStringValue("displayLogo", DisplayLogo);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/ODataErrors/ErrorDetails.cs b/src/Microsoft.Graph/Generated/Models/ODataErrors/ErrorDetails.cs
index 14a64e7c1d5..15bc83a9718 100644
--- a/src/Microsoft.Graph/Generated/Models/ODataErrors/ErrorDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/ODataErrors/ErrorDetails.cs
@@ -84,7 +84,7 @@ public ErrorDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ODataErrors.ErrorDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ODataErrors.ErrorDetails();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("target", Target);
diff --git a/src/Microsoft.Graph/Generated/Models/ODataErrors/InnerError.cs b/src/Microsoft.Graph/Generated/Models/ODataErrors/InnerError.cs
index 7c682970c6a..7c5f059924e 100644
--- a/src/Microsoft.Graph/Generated/Models/ODataErrors/InnerError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ODataErrors/InnerError.cs
@@ -90,7 +90,7 @@ public InnerError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ODataErrors.InnerError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ODataErrors.InnerError();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("client-request-id", ClientRequestId);
             writer.WriteDateTimeOffsetValue("date", Date);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ODataErrors/MainError.cs b/src/Microsoft.Graph/Generated/Models/ODataErrors/MainError.cs
index cb81e13ba35..48b3572432c 100644
--- a/src/Microsoft.Graph/Generated/Models/ODataErrors/MainError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ODataErrors/MainError.cs
@@ -116,7 +116,7 @@ public MainError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ODataErrors.MainError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ODataErrors.MainError();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ODataErrors.ErrorDetails>("details", Details);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ODataErrors.InnerError>("innerError", InnerError);
diff --git a/src/Microsoft.Graph/Generated/Models/ODataErrors/ODataError.cs b/src/Microsoft.Graph/Generated/Models/ODataErrors/ODataError.cs
index ce2e4119e10..7b9cdef67dc 100644
--- a/src/Microsoft.Graph/Generated/Models/ODataErrors/ODataError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ODataErrors/ODataError.cs
@@ -55,7 +55,7 @@ public ODataError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ODataErrors.ODataError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ODataErrors.ODataError();
         }
         /// <summary>
@@ -75,7 +75,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ODataErrors.MainError>("error", Error);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ObjectDefinition.cs b/src/Microsoft.Graph/Generated/Models/ObjectDefinition.cs
index 96b5759d37e..9f1e4cc5468 100644
--- a/src/Microsoft.Graph/Generated/Models/ObjectDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/ObjectDefinition.cs
@@ -116,7 +116,7 @@ public ObjectDefinition()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ObjectDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ObjectDefinition();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeDefinition>("attributes", Attributes);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ObjectDefinitionMetadataEntry>("metadata", Metadata);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/ObjectDefinitionMetadataEntry.cs b/src/Microsoft.Graph/Generated/Models/ObjectDefinitionMetadataEntry.cs
index 4d32bd8881d..34c29d32320 100644
--- a/src/Microsoft.Graph/Generated/Models/ObjectDefinitionMetadataEntry.cs
+++ b/src/Microsoft.Graph/Generated/Models/ObjectDefinitionMetadataEntry.cs
@@ -74,7 +74,7 @@ public ObjectDefinitionMetadataEntry()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ObjectDefinitionMetadataEntry CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ObjectDefinitionMetadataEntry();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ObjectDefinitionMetadata>("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/ObjectIdentity.cs b/src/Microsoft.Graph/Generated/Models/ObjectIdentity.cs
index b99a4f3b0a4..2ac119487e0 100644
--- a/src/Microsoft.Graph/Generated/Models/ObjectIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ObjectIdentity.cs
@@ -100,7 +100,7 @@ public ObjectIdentity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ObjectIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ObjectIdentity();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("issuer", Issuer);
             writer.WriteStringValue("issuerAssignedId", IssuerAssignedId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ObjectMapping.cs b/src/Microsoft.Graph/Generated/Models/ObjectMapping.cs
index e88a9efa6a7..97c1d2084c7 100644
--- a/src/Microsoft.Graph/Generated/Models/ObjectMapping.cs
+++ b/src/Microsoft.Graph/Generated/Models/ObjectMapping.cs
@@ -160,7 +160,7 @@ public ObjectMapping()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ObjectMapping CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ObjectMapping();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeMapping>("attributeMappings", AttributeMappings);
             writer.WriteBoolValue("enabled", Enabled);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ObjectFlowTypes>("flowTypes", FlowTypes);
diff --git a/src/Microsoft.Graph/Generated/Models/ObjectMappingMetadataEntry.cs b/src/Microsoft.Graph/Generated/Models/ObjectMappingMetadataEntry.cs
index 845db04eeda..c25bb46f554 100644
--- a/src/Microsoft.Graph/Generated/Models/ObjectMappingMetadataEntry.cs
+++ b/src/Microsoft.Graph/Generated/Models/ObjectMappingMetadataEntry.cs
@@ -74,7 +74,7 @@ public ObjectMappingMetadataEntry()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ObjectMappingMetadataEntry CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ObjectMappingMetadataEntry();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ObjectMappingMetadata>("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/OfferShiftRequest.cs b/src/Microsoft.Graph/Generated/Models/OfferShiftRequest.cs
index 95dfcd1925e..1f0e8a3df92 100644
--- a/src/Microsoft.Graph/Generated/Models/OfferShiftRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/OfferShiftRequest.cs
@@ -80,7 +80,7 @@ public OfferShiftRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OfferShiftRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -108,7 +108,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("recipientActionMessage", RecipientActionMessage);
             writer.WriteStringValue("recipientUserId", RecipientUserId);
diff --git a/src/Microsoft.Graph/Generated/Models/OfferShiftRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OfferShiftRequestCollectionResponse.cs
index 32d89ea5367..47834f848de 100644
--- a/src/Microsoft.Graph/Generated/Models/OfferShiftRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OfferShiftRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OfferShiftRequestCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OfferShiftRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OfferShiftRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OfferShiftRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OfficeGraphInsights.cs b/src/Microsoft.Graph/Generated/Models/OfficeGraphInsights.cs
index 8b9f4ec7715..32cc1750dd0 100644
--- a/src/Microsoft.Graph/Generated/Models/OfficeGraphInsights.cs
+++ b/src/Microsoft.Graph/Generated/Models/OfficeGraphInsights.cs
@@ -67,7 +67,7 @@ public partial class OfficeGraphInsights : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OfficeGraphInsights CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SharedInsight>("shared", Shared);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Trending>("trending", Trending);
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSetting.cs b/src/Microsoft.Graph/Generated/Models/OmaSetting.cs
index 521d4272c8e..75958c79c7c 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSetting.cs
@@ -101,7 +101,7 @@ public OmaSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OmaSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -135,7 +135,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSettingBase64.cs b/src/Microsoft.Graph/Generated/Models/OmaSettingBase64.cs
index c4075b9665b..8f53abed2ed 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSettingBase64.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSettingBase64.cs
@@ -59,7 +59,7 @@ public OmaSettingBase64() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OmaSettingBase64 CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OmaSettingBase64();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fileName", FileName);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSettingBoolean.cs b/src/Microsoft.Graph/Generated/Models/OmaSettingBoolean.cs
index 3321038db9a..07fae3a79c2 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSettingBoolean.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSettingBoolean.cs
@@ -33,7 +33,7 @@ public OmaSettingBoolean() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OmaSettingBoolean CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OmaSettingBoolean();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSettingDateTime.cs b/src/Microsoft.Graph/Generated/Models/OmaSettingDateTime.cs
index eddea6bc47c..252413500a2 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSettingDateTime.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSettingDateTime.cs
@@ -33,7 +33,7 @@ public OmaSettingDateTime() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OmaSettingDateTime CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OmaSettingDateTime();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSettingFloatingPoint.cs b/src/Microsoft.Graph/Generated/Models/OmaSettingFloatingPoint.cs
index 94b997c4a2d..9c13d0bae3f 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSettingFloatingPoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSettingFloatingPoint.cs
@@ -33,7 +33,7 @@ public OmaSettingFloatingPoint() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OmaSettingFloatingPoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OmaSettingFloatingPoint();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteFloatValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSettingInteger.cs b/src/Microsoft.Graph/Generated/Models/OmaSettingInteger.cs
index f8b67f05fd8..38d92121e57 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSettingInteger.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSettingInteger.cs
@@ -33,7 +33,7 @@ public OmaSettingInteger() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OmaSettingInteger CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OmaSettingInteger();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSettingString.cs b/src/Microsoft.Graph/Generated/Models/OmaSettingString.cs
index 5f3e060654b..26609d8d276 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSettingString.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSettingString.cs
@@ -43,7 +43,7 @@ public OmaSettingString() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OmaSettingString CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OmaSettingString();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OmaSettingStringXml.cs b/src/Microsoft.Graph/Generated/Models/OmaSettingStringXml.cs
index ee163be2ded..1f93483ea39 100644
--- a/src/Microsoft.Graph/Generated/Models/OmaSettingStringXml.cs
+++ b/src/Microsoft.Graph/Generated/Models/OmaSettingStringXml.cs
@@ -59,7 +59,7 @@ public OmaSettingStringXml() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OmaSettingStringXml CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OmaSettingStringXml();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fileName", FileName);
             writer.WriteByteArrayValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionExternalUsersSelfServiceSignUp.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionExternalUsersSelfServiceSignUp.cs
index 89d90a68ebe..fb3e2b3b6b9 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionExternalUsersSelfServiceSignUp.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionExternalUsersSelfServiceSignUp.cs
@@ -58,7 +58,7 @@ public OnAttributeCollectionExternalUsersSelfServiceSignUp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionExternalUsersSelfServiceSignUp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionExternalUsersSelfServiceSignUp();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationAttributeCollectionPage>("attributeCollectionPage", AttributeCollectionPage);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityUserFlowAttribute>("attributes", Attributes);
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionHandler.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionHandler.cs
index bb8947ec68b..376d369e8a4 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionHandler.cs
@@ -52,7 +52,7 @@ public OnAttributeCollectionHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnAttributeCollectionHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionListener.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionListener.cs
index 191efb45b6f..fc6c06825a9 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionListener.cs
@@ -42,7 +42,7 @@ public OnAttributeCollectionListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAttributeCollectionHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtension.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtension.cs
index d697ae08898..2fb8013c14f 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtension.cs
@@ -26,7 +26,7 @@ public OnAttributeCollectionStartCustomExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionStartCustomExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionStartCustomExtension();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtensionHandler.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtensionHandler.cs
index 55f2d72c438..3a12f4bf6db 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtensionHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartCustomExtensionHandler.cs
@@ -58,7 +58,7 @@ public OnAttributeCollectionStartCustomExtensionHandler() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionStartCustomExtensionHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionStartCustomExtensionHandler();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionOverwriteConfiguration>("configuration", Configuration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAttributeCollectionStartCustomExtension>("customExtension", CustomExtension);
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartHandler.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartHandler.cs
index 2c6afac58eb..21ffca5a9b9 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartHandler.cs
@@ -52,7 +52,7 @@ public OnAttributeCollectionStartHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnAttributeCollectionStartHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartListener.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartListener.cs
index 509d173c0bf..97817c3c78c 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionStartListener.cs
@@ -42,7 +42,7 @@ public OnAttributeCollectionStartListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionStartListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionStartListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAttributeCollectionStartHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtension.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtension.cs
index e5f14890ad3..ba763334e77 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtension.cs
@@ -26,7 +26,7 @@ public OnAttributeCollectionSubmitCustomExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionSubmitCustomExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionSubmitCustomExtension();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtensionHandler.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtensionHandler.cs
index 0e27f25c686..ccdd4e1326f 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtensionHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitCustomExtensionHandler.cs
@@ -58,7 +58,7 @@ public OnAttributeCollectionSubmitCustomExtensionHandler() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionSubmitCustomExtensionHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionSubmitCustomExtensionHandler();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionOverwriteConfiguration>("configuration", Configuration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAttributeCollectionSubmitCustomExtension>("customExtension", CustomExtension);
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitHandler.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitHandler.cs
index 39fa2597334..09a9890c649 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitHandler.cs
@@ -52,7 +52,7 @@ public OnAttributeCollectionSubmitHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnAttributeCollectionSubmitHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitListener.cs b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitListener.cs
index 6e274cd3afd..19914e00bf6 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAttributeCollectionSubmitListener.cs
@@ -42,7 +42,7 @@ public OnAttributeCollectionSubmitListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAttributeCollectionSubmitListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAttributeCollectionSubmitListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAttributeCollectionSubmitHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp.cs b/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp.cs
index daf1a10330b..a2abad04b48 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp.cs
@@ -42,7 +42,7 @@ public OnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAuthenticationMethodLoadStartExternalUsersSelfServiceSignUp();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IdentityProviderBase>("identityProviders", IdentityProviders);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartHandler.cs b/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartHandler.cs
index 89808b230d7..117c5f366d5 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartHandler.cs
@@ -52,7 +52,7 @@ public OnAuthenticationMethodLoadStartHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnAuthenticationMethodLoadStartHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartListener.cs b/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartListener.cs
index 8b33d26c3a4..6f531d285b2 100644
--- a/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnAuthenticationMethodLoadStartListener.cs
@@ -42,7 +42,7 @@ public OnAuthenticationMethodLoadStartListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnAuthenticationMethodLoadStartListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnAuthenticationMethodLoadStartListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnAuthenticationMethodLoadStartHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnEmailOtpSendListener.cs b/src/Microsoft.Graph/Generated/Models/OnEmailOtpSendListener.cs
index 9419b2e32ac..db143409b03 100644
--- a/src/Microsoft.Graph/Generated/Models/OnEmailOtpSendListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnEmailOtpSendListener.cs
@@ -42,7 +42,7 @@ public OnEmailOtpSendListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnEmailOtpSendListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnEmailOtpSendListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnOtpSendHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartExternalUsersSelfServiceSignUp.cs b/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartExternalUsersSelfServiceSignUp.cs
index 20d3d2de346..8a47c584968 100644
--- a/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartExternalUsersSelfServiceSignUp.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartExternalUsersSelfServiceSignUp.cs
@@ -32,7 +32,7 @@ public OnInteractiveAuthFlowStartExternalUsersSelfServiceSignUp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnInteractiveAuthFlowStartExternalUsersSelfServiceSignUp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnInteractiveAuthFlowStartExternalUsersSelfServiceSignUp();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isSignUpAllowed", IsSignUpAllowed);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartHandler.cs b/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartHandler.cs
index e53b1807ec7..218211a51de 100644
--- a/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartHandler.cs
@@ -52,7 +52,7 @@ public OnInteractiveAuthFlowStartHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnInteractiveAuthFlowStartHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartListener.cs b/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartListener.cs
index 9a4b1a9b324..561f552aa29 100644
--- a/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnInteractiveAuthFlowStartListener.cs
@@ -42,7 +42,7 @@ public OnInteractiveAuthFlowStartListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnInteractiveAuthFlowStartListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnInteractiveAuthFlowStartListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnInteractiveAuthFlowStartHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtension.cs b/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtension.cs
index 9ce21afbac2..96b77e48d63 100644
--- a/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtension.cs
@@ -26,7 +26,7 @@ public OnOtpSendCustomExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnOtpSendCustomExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnOtpSendCustomExtension();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtensionHandler.cs b/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtensionHandler.cs
index a5a70c59365..3f3e90c310f 100644
--- a/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtensionHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnOtpSendCustomExtensionHandler.cs
@@ -58,7 +58,7 @@ public OnOtpSendCustomExtensionHandler() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnOtpSendCustomExtensionHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnOtpSendCustomExtensionHandler();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionOverwriteConfiguration>("configuration", Configuration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnOtpSendCustomExtension>("customExtension", CustomExtension);
diff --git a/src/Microsoft.Graph/Generated/Models/OnOtpSendHandler.cs b/src/Microsoft.Graph/Generated/Models/OnOtpSendHandler.cs
index 45c6e25de7c..5d22b6eaf7a 100644
--- a/src/Microsoft.Graph/Generated/Models/OnOtpSendHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnOtpSendHandler.cs
@@ -52,7 +52,7 @@ public OnOtpSendHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnOtpSendHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesAccidentalDeletionPrevention.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesAccidentalDeletionPrevention.cs
index c4f592bbe7a..e9b7a59ea4a 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesAccidentalDeletionPrevention.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesAccidentalDeletionPrevention.cs
@@ -64,7 +64,7 @@ public OnPremisesAccidentalDeletionPrevention()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnPremisesAccidentalDeletionPrevention CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesAccidentalDeletionPrevention();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("alertThreshold", AlertThreshold);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationDeletionPreventionType>("synchronizationPreventionType", SynchronizationPreventionType);
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesConditionalAccessSettings.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesConditionalAccessSettings.cs
index 0370fb37528..e145d8bd900 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesConditionalAccessSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesConditionalAccessSettings.cs
@@ -64,7 +64,7 @@ public bool? OverrideDefaultRule
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnPremisesConditionalAccessSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesConditionalAccessSettings();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("enabled", Enabled);
             writer.WriteCollectionOfPrimitiveValues<Guid?>("excludedGroups", ExcludedGroups);
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronization.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronization.cs
index fca804826f7..c1b31428aa7 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronization.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronization.cs
@@ -51,7 +51,7 @@ public partial class OnPremisesDirectorySynchronization : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationConfiguration>("configuration", Configuration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationFeature>("features", Features);
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationCollectionResponse.cs
index 2b66f635cb5..91cd5112c0b 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OnPremisesDirectorySynchronizationCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnPremisesDirectorySynchronization>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationConfiguration.cs
index 657b28b906d..4c535c1590f 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationConfiguration.cs
@@ -68,7 +68,7 @@ public OnPremisesDirectorySynchronizationConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationConfiguration();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnPremisesAccidentalDeletionPrevention>("accidentalDeletionPrevention", AccidentalDeletionPrevention);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationFeature.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationFeature.cs
index 3949a41820f..2ce133567a3 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationFeature.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesDirectorySynchronizationFeature.cs
@@ -166,7 +166,7 @@ public OnPremisesDirectorySynchronizationFeature()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationFeature CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesDirectorySynchronizationFeature();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("blockCloudObjectTakeoverThroughHardMatchEnabled", BlockCloudObjectTakeoverThroughHardMatchEnabled);
             writer.WriteBoolValue("blockSoftMatchEnabled", BlockSoftMatchEnabled);
             writer.WriteBoolValue("bypassDirSyncOverridesEnabled", BypassDirSyncOverridesEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesExtensionAttributes.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesExtensionAttributes.cs
index 35debbcd635..cc860e9988f 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesExtensionAttributes.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesExtensionAttributes.cs
@@ -292,7 +292,7 @@ public OnPremisesExtensionAttributes()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnPremisesExtensionAttributes CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesExtensionAttributes();
         }
         /// <summary>
@@ -327,7 +327,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("extensionAttribute1", ExtensionAttribute1);
             writer.WriteStringValue("extensionAttribute10", ExtensionAttribute10);
             writer.WriteStringValue("extensionAttribute11", ExtensionAttribute11);
diff --git a/src/Microsoft.Graph/Generated/Models/OnPremisesProvisioningError.cs b/src/Microsoft.Graph/Generated/Models/OnPremisesProvisioningError.cs
index 206b7b960c9..354eda9eeda 100644
--- a/src/Microsoft.Graph/Generated/Models/OnPremisesProvisioningError.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnPremisesProvisioningError.cs
@@ -106,7 +106,7 @@ public OnPremisesProvisioningError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnPremisesProvisioningError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnPremisesProvisioningError();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("category", Category);
             writer.WriteDateTimeOffsetValue("occurredDateTime", OccurredDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtension.cs b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtension.cs
index 898afea0187..a71d9be61c9 100644
--- a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtension.cs
@@ -42,7 +42,7 @@ public OnTokenIssuanceStartCustomExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnTokenIssuanceStartCustomExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnTokenIssuanceStartCustomExtension();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnTokenIssuanceStartReturnClaim>("claimsForTokenConfiguration", ClaimsForTokenConfiguration);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtensionHandler.cs b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtensionHandler.cs
index 2a64ca9d51d..c131189e5dc 100644
--- a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtensionHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartCustomExtensionHandler.cs
@@ -58,7 +58,7 @@ public OnTokenIssuanceStartCustomExtensionHandler() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnTokenIssuanceStartCustomExtensionHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnTokenIssuanceStartCustomExtensionHandler();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomExtensionOverwriteConfiguration>("configuration", Configuration);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnTokenIssuanceStartCustomExtension>("customExtension", CustomExtension);
diff --git a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartHandler.cs b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartHandler.cs
index adf81bc6b2f..ddaa2a17ea6 100644
--- a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartHandler.cs
@@ -52,7 +52,7 @@ public OnTokenIssuanceStartHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnTokenIssuanceStartHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartListener.cs b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartListener.cs
index 6f186bc1412..b8534b7badf 100644
--- a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartListener.cs
@@ -42,7 +42,7 @@ public OnTokenIssuanceStartListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnTokenIssuanceStartListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnTokenIssuanceStartListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnTokenIssuanceStartHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartReturnClaim.cs b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartReturnClaim.cs
index 460f48ea196..535ef5be582 100644
--- a/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartReturnClaim.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnTokenIssuanceStartReturnClaim.cs
@@ -68,7 +68,7 @@ public OnTokenIssuanceStartReturnClaim()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnTokenIssuanceStartReturnClaim CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnTokenIssuanceStartReturnClaim();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("claimIdInApiResponse", ClaimIdInApiResponse);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/OnUserCreateStartExternalUsersSelfServiceSignUp.cs b/src/Microsoft.Graph/Generated/Models/OnUserCreateStartExternalUsersSelfServiceSignUp.cs
index 777edaffd83..0974f9ba5e0 100644
--- a/src/Microsoft.Graph/Generated/Models/OnUserCreateStartExternalUsersSelfServiceSignUp.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnUserCreateStartExternalUsersSelfServiceSignUp.cs
@@ -32,7 +32,7 @@ public OnUserCreateStartExternalUsersSelfServiceSignUp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnUserCreateStartExternalUsersSelfServiceSignUp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnUserCreateStartExternalUsersSelfServiceSignUp();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserType>("userTypeToCreate", UserTypeToCreate);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnUserCreateStartHandler.cs b/src/Microsoft.Graph/Generated/Models/OnUserCreateStartHandler.cs
index e607b2bdd7c..6a2b84fba69 100644
--- a/src/Microsoft.Graph/Generated/Models/OnUserCreateStartHandler.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnUserCreateStartHandler.cs
@@ -52,7 +52,7 @@ public OnUserCreateStartHandler()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnUserCreateStartHandler CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnUserCreateStartListener.cs b/src/Microsoft.Graph/Generated/Models/OnUserCreateStartListener.cs
index e27fa9909d2..13b1a83de12 100644
--- a/src/Microsoft.Graph/Generated/Models/OnUserCreateStartListener.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnUserCreateStartListener.cs
@@ -42,7 +42,7 @@ public OnUserCreateStartListener() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnUserCreateStartListener CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnUserCreateStartListener();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnUserCreateStartHandler>("handler", Handler);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicy.cs b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicy.cs
index 45a3c7e0f70..584f6e09067 100644
--- a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicy.cs
@@ -74,7 +74,7 @@ public OneDriveForBusinessProtectionPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveProtectionRule>("driveInclusionRules", DriveInclusionRules);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveProtectionUnit>("driveProtectionUnits", DriveProtectionUnits);
diff --git a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicyCollectionResponse.cs
index 2c29dba8423..997c163ddbf 100644
--- a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessProtectionPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OneDriveForBusinessProtectionPolicyCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSession.cs b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSession.cs
index 93b98f7ac85..c01baa6c308 100644
--- a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSession.cs
+++ b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSession.cs
@@ -58,7 +58,7 @@ public OneDriveForBusinessRestoreSession() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRestoreArtifact>("driveRestoreArtifacts", DriveRestoreArtifacts);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest>("driveRestoreArtifactsBulkAdditionRequests", DriveRestoreArtifactsBulkAdditionRequests);
diff --git a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSessionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSessionCollectionResponse.cs
index a641743816d..6d1757a1629 100644
--- a/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSessionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OneDriveForBusinessRestoreSessionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OneDriveForBusinessRestoreSessionCollectionResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSessionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSessionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Onenote.cs b/src/Microsoft.Graph/Generated/Models/Onenote.cs
index 0c551b069b1..4348d9a1647 100644
--- a/src/Microsoft.Graph/Generated/Models/Onenote.cs
+++ b/src/Microsoft.Graph/Generated/Models/Onenote.cs
@@ -115,7 +115,7 @@ public partial class Onenote : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Onenote CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Onenote();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Notebook>("notebooks", Notebooks);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenoteOperation>("operations", Operations);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteEntityBaseModel.cs b/src/Microsoft.Graph/Generated/Models/OnenoteEntityBaseModel.cs
index 616ca3b6b6b..bdb66bcb780 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteEntityBaseModel.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteEntityBaseModel.cs
@@ -35,7 +35,7 @@ public string Self
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteEntityBaseModel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -66,7 +66,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("self", Self);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteEntityHierarchyModel.cs b/src/Microsoft.Graph/Generated/Models/OnenoteEntityHierarchyModel.cs
index ea3a3684ffc..881ef53f7c7 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteEntityHierarchyModel.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteEntityHierarchyModel.cs
@@ -80,7 +80,7 @@ public OnenoteEntityHierarchyModel() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteEntityHierarchyModel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteEntitySchemaObjectModel.cs b/src/Microsoft.Graph/Generated/Models/OnenoteEntitySchemaObjectModel.cs
index a0b911a5c93..5571d2dcee4 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteEntitySchemaObjectModel.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteEntitySchemaObjectModel.cs
@@ -32,7 +32,7 @@ public OnenoteEntitySchemaObjectModel() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteEntitySchemaObjectModel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -61,7 +61,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteOperation.cs b/src/Microsoft.Graph/Generated/Models/OnenoteOperation.cs
index 63e3796c2c4..1caaf2ad9ea 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteOperation.cs
@@ -83,7 +83,7 @@ public string ResourceLocation
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenoteOperation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnenoteOperationError>("error", Error);
             writer.WriteStringValue("percentComplete", PercentComplete);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OnenoteOperationCollectionResponse.cs
index b0d0570fb6a..3d51fdb7c96 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OnenoteOperationCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenoteOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenoteOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteOperationError.cs b/src/Microsoft.Graph/Generated/Models/OnenoteOperationError.cs
index 26546513e3f..85fb7827d64 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteOperationError.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteOperationError.cs
@@ -84,7 +84,7 @@ public OnenoteOperationError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnenoteOperationError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenoteOperationError();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenotePage.cs b/src/Microsoft.Graph/Generated/Models/OnenotePage.cs
index 3b0987dd60b..284805b4235 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenotePage.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenotePage.cs
@@ -172,7 +172,7 @@ public OnenotePage() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenotePage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenotePage();
         }
         /// <summary>
@@ -202,7 +202,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("content", Content);
             writer.WriteStringValue("contentUrl", ContentUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenotePageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OnenotePageCollectionResponse.cs
index 919bb8e2b1e..8dc6b2bf3a6 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenotePageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenotePageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OnenotePageCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenotePageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenotePageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnenotePagePreview.cs b/src/Microsoft.Graph/Generated/Models/OnenotePagePreview.cs
index bc9b2042bf7..9e23713bfb7 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenotePagePreview.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenotePagePreview.cs
@@ -84,7 +84,7 @@ public OnenotePagePreview()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnenotePagePreview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenotePagePreview();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OnenotePagePreviewLinks>("links", Links);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("previewText", PreviewText);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenotePagePreviewLinks.cs b/src/Microsoft.Graph/Generated/Models/OnenotePagePreviewLinks.cs
index f73f3f6bfba..1bbf20baf4b 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenotePagePreviewLinks.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenotePagePreviewLinks.cs
@@ -68,7 +68,7 @@ public OnenotePagePreviewLinks()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnenotePagePreviewLinks CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenotePagePreviewLinks();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("previewImageUrl", PreviewImageUrl);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenotePatchContentCommand.cs b/src/Microsoft.Graph/Generated/Models/OnenotePatchContentCommand.cs
index cd089d89f61..3acd60494c0 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenotePatchContentCommand.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenotePatchContentCommand.cs
@@ -96,7 +96,7 @@ public OnenotePatchContentCommand()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnenotePatchContentCommand CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenotePatchContentCommand();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.OnenotePatchActionType>("action", Action);
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteResource.cs b/src/Microsoft.Graph/Generated/Models/OnenoteResource.cs
index 5095efa6750..23ea49dd15e 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteResource.cs
@@ -58,7 +58,7 @@ public OnenoteResource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenoteResource();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("content", Content);
             writer.WriteStringValue("contentUrl", ContentUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteResourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OnenoteResourceCollectionResponse.cs
index af3d0e62f43..2f1628a128c 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteResourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteResourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OnenoteResourceCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteResourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenoteResourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenoteResource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteSection.cs b/src/Microsoft.Graph/Generated/Models/OnenoteSection.cs
index 645d9fc86a6..09796cd2ab0 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteSection.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteSection.cs
@@ -112,7 +112,7 @@ public OnenoteSection() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteSection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenoteSection();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isDefault", IsDefault);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SectionLinks>("links", Links);
diff --git a/src/Microsoft.Graph/Generated/Models/OnenoteSectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OnenoteSectionCollectionResponse.cs
index fafa04f2011..4e99a9abed8 100644
--- a/src/Microsoft.Graph/Generated/Models/OnenoteSectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnenoteSectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OnenoteSectionCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnenoteSectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnenoteSectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenoteSection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnlineMeeting.cs b/src/Microsoft.Graph/Generated/Models/OnlineMeeting.cs
index a0978b3bc36..febb833b7ea 100644
--- a/src/Microsoft.Graph/Generated/Models/OnlineMeeting.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnlineMeeting.cs
@@ -162,7 +162,7 @@ public OnlineMeeting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnlineMeeting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnlineMeeting();
         }
         /// <summary>
@@ -192,7 +192,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("attendeeReport", AttendeeReport);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BroadcastMeetingSettings>("broadcastSettings", BroadcastSettings);
diff --git a/src/Microsoft.Graph/Generated/Models/OnlineMeetingBase.cs b/src/Microsoft.Graph/Generated/Models/OnlineMeetingBase.cs
index a1078033491..b1d48e92b72 100644
--- a/src/Microsoft.Graph/Generated/Models/OnlineMeetingBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnlineMeetingBase.cs
@@ -154,7 +154,7 @@ public bool? AllowWhiteboard
             set { BackingStore?.Set("chatRestrictions", value); }
         }
 #endif
-        /// <summary>The isEndToEndEncryptionEnabled property</summary>
+        /// <summary>Indicates whether end-to-end encryption (E2EE) is enabled for the online meeting.</summary>
         public bool? IsEndToEndEncryptionEnabled
         {
             get { return BackingStore?.Get<bool?>("isEndToEndEncryptionEnabled"); }
@@ -297,7 +297,7 @@ public string VideoTeleconferenceId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnlineMeetingBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -350,7 +350,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowAttendeeToEnableCamera", AllowAttendeeToEnableCamera);
             writer.WriteBoolValue("allowAttendeeToEnableMic", AllowAttendeeToEnableMic);
diff --git a/src/Microsoft.Graph/Generated/Models/OnlineMeetingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OnlineMeetingCollectionResponse.cs
index c46433b0e00..4665a215bab 100644
--- a/src/Microsoft.Graph/Generated/Models/OnlineMeetingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnlineMeetingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OnlineMeetingCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OnlineMeetingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnlineMeetingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnlineMeeting>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OnlineMeetingInfo.cs b/src/Microsoft.Graph/Generated/Models/OnlineMeetingInfo.cs
index 29899148307..4d947d8d79c 100644
--- a/src/Microsoft.Graph/Generated/Models/OnlineMeetingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnlineMeetingInfo.cs
@@ -148,7 +148,7 @@ public OnlineMeetingInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnlineMeetingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnlineMeetingInfo();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("conferenceId", ConferenceId);
             writer.WriteStringValue("joinUrl", JoinUrl);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OnlineMeetingRestricted.cs b/src/Microsoft.Graph/Generated/Models/OnlineMeetingRestricted.cs
index 92b7657e800..e3e7ce25278 100644
--- a/src/Microsoft.Graph/Generated/Models/OnlineMeetingRestricted.cs
+++ b/src/Microsoft.Graph/Generated/Models/OnlineMeetingRestricted.cs
@@ -64,7 +64,7 @@ public OnlineMeetingRestricted()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OnlineMeetingRestricted CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OnlineMeetingRestricted();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.OnlineMeetingContentSharingDisabledReason>("contentSharingDisabled", ContentSharingDisabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.OnlineMeetingVideoDisabledReason>("videoDisabled", VideoDisabled);
diff --git a/src/Microsoft.Graph/Generated/Models/OpenShift.cs b/src/Microsoft.Graph/Generated/Models/OpenShift.cs
index d84314b5a2a..0fd3a9427b3 100644
--- a/src/Microsoft.Graph/Generated/Models/OpenShift.cs
+++ b/src/Microsoft.Graph/Generated/Models/OpenShift.cs
@@ -80,7 +80,7 @@ public OpenShift() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OpenShift CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OpenShift();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OpenShiftItem>("draftOpenShift", DraftOpenShift);
             writer.WriteBoolValue("isStagedForDeletion", IsStagedForDeletion);
diff --git a/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequest.cs b/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequest.cs
index 1c886822b95..9ef0e501e96 100644
--- a/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequest.cs
@@ -42,7 +42,7 @@ public OpenShiftChangeRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OpenShiftChangeRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OpenShiftChangeRequest();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("openShiftId", OpenShiftId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequestCollectionResponse.cs
index 7d64918dc11..563d0915120 100644
--- a/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OpenShiftChangeRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OpenShiftChangeRequestCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OpenShiftChangeRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OpenShiftChangeRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OpenShiftChangeRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OpenShiftCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OpenShiftCollectionResponse.cs
index a58061ea7a7..a4890bdd46c 100644
--- a/src/Microsoft.Graph/Generated/Models/OpenShiftCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OpenShiftCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OpenShiftCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OpenShiftCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OpenShiftCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OpenShift>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OpenShiftItem.cs b/src/Microsoft.Graph/Generated/Models/OpenShiftItem.cs
index 4607b808f0b..01b3c61caba 100644
--- a/src/Microsoft.Graph/Generated/Models/OpenShiftItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/OpenShiftItem.cs
@@ -32,7 +32,7 @@ public OpenShiftItem() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OpenShiftItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OpenShiftItem();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("openSlotCount", OpenSlotCount);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OpenTypeExtension.cs b/src/Microsoft.Graph/Generated/Models/OpenTypeExtension.cs
index c542497110d..a33ec358fae 100644
--- a/src/Microsoft.Graph/Generated/Models/OpenTypeExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/OpenTypeExtension.cs
@@ -42,7 +42,7 @@ public OpenTypeExtension() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OpenTypeExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OpenTypeExtension();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("extensionName", ExtensionName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OperatingSystemSpecifications.cs b/src/Microsoft.Graph/Generated/Models/OperatingSystemSpecifications.cs
index 86a732395a1..359ad3b9107 100644
--- a/src/Microsoft.Graph/Generated/Models/OperatingSystemSpecifications.cs
+++ b/src/Microsoft.Graph/Generated/Models/OperatingSystemSpecifications.cs
@@ -84,7 +84,7 @@ public OperatingSystemSpecifications()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OperatingSystemSpecifications CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OperatingSystemSpecifications();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("operatingSystemPlatform", OperatingSystemPlatform);
             writer.WriteStringValue("operatingSystemVersion", OperatingSystemVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/Operation.cs b/src/Microsoft.Graph/Generated/Models/Operation.cs
index e91f55af4e5..a704fcc526b 100644
--- a/src/Microsoft.Graph/Generated/Models/Operation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Operation.cs
@@ -37,7 +37,7 @@ public DateTimeOffset? LastActionDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Operation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -64,7 +64,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteDateTimeOffsetValue("lastActionDateTime", LastActionDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/OperationError.cs b/src/Microsoft.Graph/Generated/Models/OperationError.cs
index 4b7ce092ee5..d8a8ef5303f 100644
--- a/src/Microsoft.Graph/Generated/Models/OperationError.cs
+++ b/src/Microsoft.Graph/Generated/Models/OperationError.cs
@@ -84,7 +84,7 @@ public OperationError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OperationError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OperationError();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OptionalClaim.cs b/src/Microsoft.Graph/Generated/Models/OptionalClaim.cs
index 04c813e8e66..b4400445fe4 100644
--- a/src/Microsoft.Graph/Generated/Models/OptionalClaim.cs
+++ b/src/Microsoft.Graph/Generated/Models/OptionalClaim.cs
@@ -106,7 +106,7 @@ public OptionalClaim()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OptionalClaim CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OptionalClaim();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("additionalProperties", AdditionalProperties);
             writer.WriteBoolValue("essential", Essential);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/OptionalClaims.cs b/src/Microsoft.Graph/Generated/Models/OptionalClaims.cs
index 08508e022db..81d243b837f 100644
--- a/src/Microsoft.Graph/Generated/Models/OptionalClaims.cs
+++ b/src/Microsoft.Graph/Generated/Models/OptionalClaims.cs
@@ -100,7 +100,7 @@ public OptionalClaims()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OptionalClaims CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OptionalClaims();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OptionalClaim>("accessToken", AccessToken);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OptionalClaim>("idToken", IdToken);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OrgContact.cs b/src/Microsoft.Graph/Generated/Models/OrgContact.cs
index 537ba725728..31f503903f6 100644
--- a/src/Microsoft.Graph/Generated/Models/OrgContact.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrgContact.cs
@@ -310,7 +310,7 @@ public OrgContact() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrgContact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OrgContact();
         }
         /// <summary>
@@ -348,7 +348,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PhysicalOfficeAddress>("addresses", Addresses);
             writer.WriteStringValue("companyName", CompanyName);
diff --git a/src/Microsoft.Graph/Generated/Models/OrgContactCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OrgContactCollectionResponse.cs
index df1eed4e74c..f6203878e3e 100644
--- a/src/Microsoft.Graph/Generated/Models/OrgContactCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrgContactCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OrgContactCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrgContactCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OrgContactCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OrgContact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Organization.cs b/src/Microsoft.Graph/Generated/Models/Organization.cs
index c2af32be7f4..fc3ac6090f7 100644
--- a/src/Microsoft.Graph/Generated/Models/Organization.cs
+++ b/src/Microsoft.Graph/Generated/Models/Organization.cs
@@ -408,7 +408,7 @@ public Organization() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Organization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Organization();
         }
         /// <summary>
@@ -454,7 +454,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssignedPlan>("assignedPlans", AssignedPlans);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.OrganizationalBranding>("branding", Branding);
diff --git a/src/Microsoft.Graph/Generated/Models/OrganizationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OrganizationCollectionResponse.cs
index de3dd216471..1c4e09d801c 100644
--- a/src/Microsoft.Graph/Generated/Models/OrganizationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrganizationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OrganizationCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrganizationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OrganizationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Organization>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OrganizationalBranding.cs b/src/Microsoft.Graph/Generated/Models/OrganizationalBranding.cs
index f37e701f970..b98995af109 100644
--- a/src/Microsoft.Graph/Generated/Models/OrganizationalBranding.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrganizationalBranding.cs
@@ -42,7 +42,7 @@ public OrganizationalBranding() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrganizationalBranding CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OrganizationalBranding();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OrganizationalBrandingLocalization>("localizations", Localizations);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalization.cs b/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalization.cs
index 5d9a08eb608..fb79763142b 100644
--- a/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalization.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalization.cs
@@ -26,7 +26,7 @@ public OrganizationalBrandingLocalization() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrganizationalBrandingLocalization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OrganizationalBrandingLocalization();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalizationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalizationCollectionResponse.cs
index 693576f0e99..2bba418a8a7 100644
--- a/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalizationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingLocalizationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OrganizationalBrandingLocalizationCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrganizationalBrandingLocalizationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OrganizationalBrandingLocalizationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OrganizationalBrandingLocalization>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingProperties.cs b/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingProperties.cs
index a3a92376652..0c103aff03d 100644
--- a/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingProperties.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrganizationalBrandingProperties.cs
@@ -515,7 +515,7 @@ public string UsernameHintText
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrganizationalBrandingProperties CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -571,7 +571,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("backgroundColor", BackgroundColor);
             writer.WriteByteArrayValue("backgroundImage", BackgroundImage);
diff --git a/src/Microsoft.Graph/Generated/Models/OrganizerMeetingInfo.cs b/src/Microsoft.Graph/Generated/Models/OrganizerMeetingInfo.cs
index 1b26ffc308a..9fdaa3230fd 100644
--- a/src/Microsoft.Graph/Generated/Models/OrganizerMeetingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/OrganizerMeetingInfo.cs
@@ -42,7 +42,7 @@ public OrganizerMeetingInfo() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OrganizerMeetingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OrganizerMeetingInfo();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("organizer", Organizer);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OsVersionCount.cs b/src/Microsoft.Graph/Generated/Models/OsVersionCount.cs
index 8a8c0d24906..51996708627 100644
--- a/src/Microsoft.Graph/Generated/Models/OsVersionCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/OsVersionCount.cs
@@ -81,7 +81,7 @@ public OsVersionCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OsVersionCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OsVersionCount();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("deviceCount", DeviceCount);
             writer.WriteDateTimeOffsetValue("lastUpdateDateTime", LastUpdateDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OutOfBoxExperienceSetting.cs b/src/Microsoft.Graph/Generated/Models/OutOfBoxExperienceSetting.cs
index 83353ba5e6f..8f746e258c5 100644
--- a/src/Microsoft.Graph/Generated/Models/OutOfBoxExperienceSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutOfBoxExperienceSetting.cs
@@ -89,7 +89,7 @@ public OutOfBoxExperienceSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OutOfBoxExperienceSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OutOfBoxExperienceSetting();
         }
         /// <summary>
@@ -115,7 +115,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsDeviceUsageType>("deviceUsageType", DeviceUsageType);
             writer.WriteBoolValue("escapeLinkHidden", EscapeLinkHidden);
             writer.WriteBoolValue("eulaHidden", EulaHidden);
diff --git a/src/Microsoft.Graph/Generated/Models/OutOfOfficeSettings.cs b/src/Microsoft.Graph/Generated/Models/OutOfOfficeSettings.cs
index 01a79af0ac9..a0b066d3112 100644
--- a/src/Microsoft.Graph/Generated/Models/OutOfOfficeSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutOfOfficeSettings.cs
@@ -74,7 +74,7 @@ public OutOfOfficeSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OutOfOfficeSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OutOfOfficeSettings();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isOutOfOffice", IsOutOfOffice);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/OutgoingCallOptions.cs b/src/Microsoft.Graph/Generated/Models/OutgoingCallOptions.cs
index f4d82c79aba..3cc8690107c 100644
--- a/src/Microsoft.Graph/Generated/Models/OutgoingCallOptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutgoingCallOptions.cs
@@ -26,7 +26,7 @@ public OutgoingCallOptions() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OutgoingCallOptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OutgoingCallOptions();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/OutlookCategory.cs b/src/Microsoft.Graph/Generated/Models/OutlookCategory.cs
index f57a96f6999..547db88b786 100644
--- a/src/Microsoft.Graph/Generated/Models/OutlookCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutlookCategory.cs
@@ -41,7 +41,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OutlookCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OutlookCategory();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.CategoryColor>("color", Color);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/OutlookCategoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/OutlookCategoryCollectionResponse.cs
index 75a7dc33431..12d9b32f90c 100644
--- a/src/Microsoft.Graph/Generated/Models/OutlookCategoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutlookCategoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OutlookCategoryCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OutlookCategoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OutlookCategoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OutlookCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/OutlookGeoCoordinates.cs b/src/Microsoft.Graph/Generated/Models/OutlookGeoCoordinates.cs
index 12dd3d05e3e..26625482063 100644
--- a/src/Microsoft.Graph/Generated/Models/OutlookGeoCoordinates.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutlookGeoCoordinates.cs
@@ -82,7 +82,7 @@ public OutlookGeoCoordinates()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.OutlookGeoCoordinates CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OutlookGeoCoordinates();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDoubleValue("accuracy", Accuracy);
             writer.WriteDoubleValue("altitude", Altitude);
             writer.WriteDoubleValue("altitudeAccuracy", AltitudeAccuracy);
diff --git a/src/Microsoft.Graph/Generated/Models/OutlookItem.cs b/src/Microsoft.Graph/Generated/Models/OutlookItem.cs
index ac98b15dc8b..ddda2299186 100644
--- a/src/Microsoft.Graph/Generated/Models/OutlookItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutlookItem.cs
@@ -63,7 +63,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OutlookItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -98,7 +98,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("categories", Categories);
             writer.WriteStringValue("changeKey", ChangeKey);
diff --git a/src/Microsoft.Graph/Generated/Models/OutlookUser.cs b/src/Microsoft.Graph/Generated/Models/OutlookUser.cs
index 26f7a16fba2..d0dfcdf8daa 100644
--- a/src/Microsoft.Graph/Generated/Models/OutlookUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/OutlookUser.cs
@@ -35,7 +35,7 @@ public partial class OutlookUser : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.OutlookUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.OutlookUser();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OutlookCategory>("masterCategories", MasterCategories);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Package.cs b/src/Microsoft.Graph/Generated/Models/Package.cs
index b445a5f0aca..643100578a1 100644
--- a/src/Microsoft.Graph/Generated/Models/Package.cs
+++ b/src/Microsoft.Graph/Generated/Models/Package.cs
@@ -68,7 +68,7 @@ public Package()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Package CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Package();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("type", Type);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PageLinks.cs b/src/Microsoft.Graph/Generated/Models/PageLinks.cs
index 3dc526adc4e..daf9476390b 100644
--- a/src/Microsoft.Graph/Generated/Models/PageLinks.cs
+++ b/src/Microsoft.Graph/Generated/Models/PageLinks.cs
@@ -84,7 +84,7 @@ public PageLinks()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PageLinks CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PageLinks();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteClientUrl", OneNoteClientUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteWebUrl", OneNoteWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/ParentalControlSettings.cs b/src/Microsoft.Graph/Generated/Models/ParentalControlSettings.cs
index 96a35b5ef2b..fa04b004878 100644
--- a/src/Microsoft.Graph/Generated/Models/ParentalControlSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/ParentalControlSettings.cs
@@ -84,7 +84,7 @@ public ParentalControlSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ParentalControlSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ParentalControlSettings();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("countriesBlockedForMinors", CountriesBlockedForMinors);
             writer.WriteStringValue("legalAgeGroupRule", LegalAgeGroupRule);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ParseExpressionResponse.cs b/src/Microsoft.Graph/Generated/Models/ParseExpressionResponse.cs
index dcef239f623..47f89b279dd 100644
--- a/src/Microsoft.Graph/Generated/Models/ParseExpressionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ParseExpressionResponse.cs
@@ -112,7 +112,7 @@ public ParseExpressionResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ParseExpressionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ParseExpressionResponse();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
             writer.WriteCollectionOfPrimitiveValues<string>("evaluationResult", EvaluationResult);
             writer.WriteBoolValue("evaluationSucceeded", EvaluationSucceeded);
diff --git a/src/Microsoft.Graph/Generated/Models/Participant.cs b/src/Microsoft.Graph/Generated/Models/Participant.cs
index 7c45452848a..9924c37ecbf 100644
--- a/src/Microsoft.Graph/Generated/Models/Participant.cs
+++ b/src/Microsoft.Graph/Generated/Models/Participant.cs
@@ -133,7 +133,7 @@ public long? RosterSequenceNumber
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Participant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Participant();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ParticipantInfo>("info", Info);
             writer.WriteBoolValue("isInLobby", IsInLobby);
diff --git a/src/Microsoft.Graph/Generated/Models/ParticipantCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ParticipantCollectionResponse.cs
index 8381915b39e..36bf8d2b793 100644
--- a/src/Microsoft.Graph/Generated/Models/ParticipantCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ParticipantCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ParticipantCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ParticipantCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ParticipantCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Participant>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ParticipantInfo.cs b/src/Microsoft.Graph/Generated/Models/ParticipantInfo.cs
index 54afed404eb..8b4de394c48 100644
--- a/src/Microsoft.Graph/Generated/Models/ParticipantInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ParticipantInfo.cs
@@ -138,7 +138,7 @@ public ParticipantInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ParticipantInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ParticipantInfo();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("countryCode", CountryCode);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.EndpointType>("endpointType", EndpointType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("identity", Identity);
diff --git a/src/Microsoft.Graph/Generated/Models/ParticipantJoiningNotification.cs b/src/Microsoft.Graph/Generated/Models/ParticipantJoiningNotification.cs
index 95eec6056e0..f15a0e74c88 100644
--- a/src/Microsoft.Graph/Generated/Models/ParticipantJoiningNotification.cs
+++ b/src/Microsoft.Graph/Generated/Models/ParticipantJoiningNotification.cs
@@ -35,7 +35,7 @@ public partial class ParticipantJoiningNotification : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ParticipantJoiningNotification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ParticipantJoiningNotification();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Call>("call", Call);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ParticipantLeftNotification.cs b/src/Microsoft.Graph/Generated/Models/ParticipantLeftNotification.cs
index 3033b93362e..616be876bd3 100644
--- a/src/Microsoft.Graph/Generated/Models/ParticipantLeftNotification.cs
+++ b/src/Microsoft.Graph/Generated/Models/ParticipantLeftNotification.cs
@@ -51,7 +51,7 @@ public string ParticipantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ParticipantLeftNotification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ParticipantLeftNotification();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Call>("call", Call);
             writer.WriteStringValue("participantId", ParticipantId);
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/AzureUsage.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/AzureUsage.cs
index fac0b3098df..d3916a82b60 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/AzureUsage.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/AzureUsage.cs
@@ -51,7 +51,7 @@ public partial class AzureUsage : global::Microsoft.Graph.Models.Entity, IParsab
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.AzureUsage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.AzureUsage();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Partners.Billing.BilledUsage>("billed", Billed);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Partners.Billing.UnbilledUsage>("unbilled", Unbilled);
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledReconciliation.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledReconciliation.cs
index af377f2f5d8..d930564207b 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledReconciliation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledReconciliation.cs
@@ -19,7 +19,7 @@ public partial class BilledReconciliation : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.BilledReconciliation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.BilledReconciliation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledUsage.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledUsage.cs
index 3104f5d5a40..59d5a408ed8 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledUsage.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/BilledUsage.cs
@@ -19,7 +19,7 @@ public partial class BilledUsage : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.BilledUsage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.BilledUsage();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Billing.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Billing.cs
index ecf01a8858d..b58c1331143 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Billing.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Billing.cs
@@ -83,7 +83,7 @@ public partial class Billing : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.Billing CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.Billing();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Partners.Billing.Manifest>("manifests", Manifests);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Partners.Billing.Operation>("operations", Operations);
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/BillingReconciliation.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/BillingReconciliation.cs
index 9c46ade56e3..b15062ecc4d 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/BillingReconciliation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/BillingReconciliation.cs
@@ -51,7 +51,7 @@ public partial class BillingReconciliation : global::Microsoft.Graph.Models.Enti
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.BillingReconciliation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.BillingReconciliation();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Partners.Billing.BilledReconciliation>("billed", Billed);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Partners.Billing.UnbilledReconciliation>("unbilled", Unbilled);
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Blob.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Blob.cs
index dab602e4816..6a9907f5122 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Blob.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Blob.cs
@@ -84,7 +84,7 @@ public Blob()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Partners.Billing.Blob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.Blob();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("partitionValue", PartitionValue);
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/ExportSuccessOperation.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/ExportSuccessOperation.cs
index 27892a8c7ca..752c1aa7409 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/ExportSuccessOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/ExportSuccessOperation.cs
@@ -35,7 +35,7 @@ public partial class ExportSuccessOperation : global::Microsoft.Graph.Models.Par
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.ExportSuccessOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.ExportSuccessOperation();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Partners.Billing.Manifest>("resourceLocation", ResourceLocation);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/FailedOperation.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/FailedOperation.cs
index 88795a8b086..f82e9aa2398 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/FailedOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/FailedOperation.cs
@@ -35,7 +35,7 @@ public partial class FailedOperation : global::Microsoft.Graph.Models.Partners.B
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.FailedOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.FailedOperation();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Manifest.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Manifest.cs
index fa71b0a223b..f7064027ec8 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Manifest.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Manifest.cs
@@ -159,7 +159,7 @@ public string SchemaVersion
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.Manifest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.Manifest();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("blobCount", BlobCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Partners.Billing.Blob>("blobs", Blobs);
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/ManifestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/ManifestCollectionResponse.cs
index 3b7312015e8..b9128e52f39 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/ManifestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/ManifestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ManifestCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.ManifestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.ManifestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Partners.Billing.Manifest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Operation.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Operation.cs
index 0de13ba3357..186de081911 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/Operation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/Operation.cs
@@ -37,7 +37,7 @@ public DateTimeOffset? LastActionDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.Operation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -66,7 +66,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteDateTimeOffsetValue("lastActionDateTime", LastActionDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/OperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/OperationCollectionResponse.cs
index 91f5175fdbb..ab16fef8776 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/OperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/OperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class OperationCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.OperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.OperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Partners.Billing.Operation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/RunningOperation.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/RunningOperation.cs
index 09f3bd5af91..2cf5345e9d4 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/RunningOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/RunningOperation.cs
@@ -19,7 +19,7 @@ public partial class RunningOperation : global::Microsoft.Graph.Models.Partners.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.RunningOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.RunningOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledReconciliation.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledReconciliation.cs
index 32f12b5d044..25a5f0eaf5b 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledReconciliation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledReconciliation.cs
@@ -19,7 +19,7 @@ public partial class UnbilledReconciliation : global::Microsoft.Graph.Models.Ent
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.UnbilledReconciliation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.UnbilledReconciliation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledUsage.cs b/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledUsage.cs
index 31adb26318e..b00bc711b42 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledUsage.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Billing/UnbilledUsage.cs
@@ -19,7 +19,7 @@ public partial class UnbilledUsage : global::Microsoft.Graph.Models.Entity, IPar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Billing.UnbilledUsage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Billing.UnbilledUsage();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Partners/Partners.cs b/src/Microsoft.Graph/Generated/Models/Partners/Partners.cs
index 0ec99d932e5..d86454a8d62 100644
--- a/src/Microsoft.Graph/Generated/Models/Partners/Partners.cs
+++ b/src/Microsoft.Graph/Generated/Models/Partners/Partners.cs
@@ -36,7 +36,7 @@ public partial class Partners : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Partners.Partners CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Partners.Partners();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Partners.Billing.Billing>("billing", Billing);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethod.cs
index c25c4aa23f1..8ff6c245c7e 100644
--- a/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethod.cs
@@ -48,7 +48,7 @@ public PasswordAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PasswordAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PasswordAuthenticationMethod();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("password", Password);
diff --git a/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethodCollectionResponse.cs
index 50bd2a9a915..dbf71e28773 100644
--- a/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PasswordAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PasswordAuthenticationMethodCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PasswordAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PasswordAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PasswordAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PasswordCredential.cs b/src/Microsoft.Graph/Generated/Models/PasswordCredential.cs
index 26a51ed3bba..7b00ca41105 100644
--- a/src/Microsoft.Graph/Generated/Models/PasswordCredential.cs
+++ b/src/Microsoft.Graph/Generated/Models/PasswordCredential.cs
@@ -134,7 +134,7 @@ public PasswordCredential()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PasswordCredential CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PasswordCredential();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("customKeyIdentifier", CustomKeyIdentifier);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/PasswordCredentialConfiguration.cs b/src/Microsoft.Graph/Generated/Models/PasswordCredentialConfiguration.cs
index 3baf719d4c8..0b78183694b 100644
--- a/src/Microsoft.Graph/Generated/Models/PasswordCredentialConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/PasswordCredentialConfiguration.cs
@@ -76,7 +76,7 @@ public PasswordCredentialConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PasswordCredentialConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PasswordCredentialConfiguration();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeSpanValue("maxLifetime", MaxLifetime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("restrictForAppsCreatedAfterDateTime", RestrictForAppsCreatedAfterDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/PasswordProfile.cs b/src/Microsoft.Graph/Generated/Models/PasswordProfile.cs
index 5a6f8995c7a..4b9169f0713 100644
--- a/src/Microsoft.Graph/Generated/Models/PasswordProfile.cs
+++ b/src/Microsoft.Graph/Generated/Models/PasswordProfile.cs
@@ -80,7 +80,7 @@ public PasswordProfile()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PasswordProfile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PasswordProfile();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("forceChangePasswordNextSignIn", ForceChangePasswordNextSignIn);
             writer.WriteBoolValue("forceChangePasswordNextSignInWithMfa", ForceChangePasswordNextSignInWithMfa);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PasswordResetResponse.cs b/src/Microsoft.Graph/Generated/Models/PasswordResetResponse.cs
index 98eeee2b04b..ee7df974569 100644
--- a/src/Microsoft.Graph/Generated/Models/PasswordResetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PasswordResetResponse.cs
@@ -68,7 +68,7 @@ public PasswordResetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PasswordResetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PasswordResetResponse();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("newPassword", NewPassword);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PatternedRecurrence.cs b/src/Microsoft.Graph/Generated/Models/PatternedRecurrence.cs
index ad4660f58ae..54792c5a094 100644
--- a/src/Microsoft.Graph/Generated/Models/PatternedRecurrence.cs
+++ b/src/Microsoft.Graph/Generated/Models/PatternedRecurrence.cs
@@ -84,7 +84,7 @@ public PatternedRecurrence()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PatternedRecurrence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PatternedRecurrence();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RecurrencePattern>("pattern", Pattern);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RecurrenceRange>("range", Range);
diff --git a/src/Microsoft.Graph/Generated/Models/Payload.cs b/src/Microsoft.Graph/Generated/Models/Payload.cs
index d3ee3e15972..2d4fe117612 100644
--- a/src/Microsoft.Graph/Generated/Models/Payload.cs
+++ b/src/Microsoft.Graph/Generated/Models/Payload.cs
@@ -221,7 +221,7 @@ public double? PredictedCompromiseRate
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Payload CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Payload();
         }
         /// <summary>
@@ -262,7 +262,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PayloadBrand>("brand", Brand);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PayloadComplexity>("complexity", Complexity);
diff --git a/src/Microsoft.Graph/Generated/Models/PayloadCoachmark.cs b/src/Microsoft.Graph/Generated/Models/PayloadCoachmark.cs
index ab13143e97b..6b8185ee252 100644
--- a/src/Microsoft.Graph/Generated/Models/PayloadCoachmark.cs
+++ b/src/Microsoft.Graph/Generated/Models/PayloadCoachmark.cs
@@ -138,7 +138,7 @@ public PayloadCoachmark()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PayloadCoachmark CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PayloadCoachmark();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CoachmarkLocation>("coachmarkLocation", CoachmarkLocation);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("indicator", Indicator);
diff --git a/src/Microsoft.Graph/Generated/Models/PayloadCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PayloadCollectionResponse.cs
index 16ed67c1f30..fe78499c06d 100644
--- a/src/Microsoft.Graph/Generated/Models/PayloadCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PayloadCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PayloadCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PayloadCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PayloadCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Payload>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PayloadDetail.cs b/src/Microsoft.Graph/Generated/Models/PayloadDetail.cs
index 046e284b7b6..aea34b8d7ce 100644
--- a/src/Microsoft.Graph/Generated/Models/PayloadDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/PayloadDetail.cs
@@ -100,7 +100,7 @@ public PayloadDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PayloadDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -128,7 +128,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PayloadCoachmark>("coachmarks", Coachmarks);
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PendingContentUpdate.cs b/src/Microsoft.Graph/Generated/Models/PendingContentUpdate.cs
index 2a04084608a..36025b7df47 100644
--- a/src/Microsoft.Graph/Generated/Models/PendingContentUpdate.cs
+++ b/src/Microsoft.Graph/Generated/Models/PendingContentUpdate.cs
@@ -58,7 +58,7 @@ public PendingContentUpdate()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PendingContentUpdate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PendingContentUpdate();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("queuedDateTime", QueuedDateTime);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PendingOperations.cs b/src/Microsoft.Graph/Generated/Models/PendingOperations.cs
index 25b1d2f0440..a738cfe1fb1 100644
--- a/src/Microsoft.Graph/Generated/Models/PendingOperations.cs
+++ b/src/Microsoft.Graph/Generated/Models/PendingOperations.cs
@@ -68,7 +68,7 @@ public PendingOperations()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PendingOperations CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PendingOperations();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PendingContentUpdate>("pendingContentUpdate", PendingContentUpdate);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PeopleAdminSettings.cs b/src/Microsoft.Graph/Generated/Models/PeopleAdminSettings.cs
index 7e50e350034..11d86730b01 100644
--- a/src/Microsoft.Graph/Generated/Models/PeopleAdminSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/PeopleAdminSettings.cs
@@ -67,7 +67,7 @@ public partial class PeopleAdminSettings : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PeopleAdminSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PeopleAdminSettings();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.InsightsSettings>("itemInsights", ItemInsights);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProfileCardProperty>("profileCardProperties", ProfileCardProperties);
diff --git a/src/Microsoft.Graph/Generated/Models/Permission.cs b/src/Microsoft.Graph/Generated/Models/Permission.cs
index f75d8753c1b..6228996f986 100644
--- a/src/Microsoft.Graph/Generated/Models/Permission.cs
+++ b/src/Microsoft.Graph/Generated/Models/Permission.cs
@@ -175,7 +175,7 @@ public string ShareId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Permission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Permission();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("grantedTo", GrantedTo);
diff --git a/src/Microsoft.Graph/Generated/Models/PermissionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PermissionCollectionResponse.cs
index 49eb680c778..7c71a47988d 100644
--- a/src/Microsoft.Graph/Generated/Models/PermissionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PermissionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PermissionCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PermissionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PermissionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSet.cs b/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSet.cs
index e52712b806a..c39aa04635c 100644
--- a/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSet.cs
@@ -127,7 +127,7 @@ public string ResourceApplication
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PermissionGrantConditionSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PermissionGrantConditionSet();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("clientApplicationIds", ClientApplicationIds);
             writer.WriteCollectionOfPrimitiveValues<string>("clientApplicationPublisherIds", ClientApplicationPublisherIds);
diff --git a/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSetCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSetCollectionResponse.cs
index 50f1f0fa3df..f7bf40a7be9 100644
--- a/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSetCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PermissionGrantConditionSetCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PermissionGrantConditionSetCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PermissionGrantConditionSetCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PermissionGrantConditionSetCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PermissionGrantConditionSet>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicy.cs b/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicy.cs
index dbb99444e30..f671163ce3c 100644
--- a/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicy.cs
@@ -58,7 +58,7 @@ public PermissionGrantPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PermissionGrantPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PermissionGrantPolicy();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PermissionGrantConditionSet>("excludes", Excludes);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PermissionGrantConditionSet>("includes", Includes);
diff --git a/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicyCollectionResponse.cs
index 5ff2ced61c6..092b00bd1ab 100644
--- a/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PermissionGrantPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PermissionGrantPolicyCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PermissionGrantPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PermissionGrantPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PermissionGrantPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PermissionScope.cs b/src/Microsoft.Graph/Generated/Models/PermissionScope.cs
index 47c71e56774..1407350e238 100644
--- a/src/Microsoft.Graph/Generated/Models/PermissionScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/PermissionScope.cs
@@ -176,7 +176,7 @@ public PermissionScope()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PermissionScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PermissionScope();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("adminConsentDescription", AdminConsentDescription);
             writer.WriteStringValue("adminConsentDisplayName", AdminConsentDisplayName);
             writer.WriteGuidValue("id", Id);
diff --git a/src/Microsoft.Graph/Generated/Models/PersistentBrowserSessionControl.cs b/src/Microsoft.Graph/Generated/Models/PersistentBrowserSessionControl.cs
index d06efe76eb6..7c906287076 100644
--- a/src/Microsoft.Graph/Generated/Models/PersistentBrowserSessionControl.cs
+++ b/src/Microsoft.Graph/Generated/Models/PersistentBrowserSessionControl.cs
@@ -32,7 +32,7 @@ public PersistentBrowserSessionControl() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PersistentBrowserSessionControl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PersistentBrowserSessionControl();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PersistentBrowserSessionMode>("mode", Mode);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Person.cs b/src/Microsoft.Graph/Generated/Models/Person.cs
index f0b617ab8f2..674360ff71b 100644
--- a/src/Microsoft.Graph/Generated/Models/Person.cs
+++ b/src/Microsoft.Graph/Generated/Models/Person.cs
@@ -313,7 +313,7 @@ public string YomiCompany
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Person CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Person();
         }
         /// <summary>
@@ -351,7 +351,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("birthday", Birthday);
             writer.WriteStringValue("companyName", CompanyName);
diff --git a/src/Microsoft.Graph/Generated/Models/PersonCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PersonCollectionResponse.cs
index b2692479c85..bb63ad9ed73 100644
--- a/src/Microsoft.Graph/Generated/Models/PersonCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PersonCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PersonCollectionResponse : global::Microsoft.Graph.Models.B
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PersonCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PersonCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Person>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PersonOrGroupColumn.cs b/src/Microsoft.Graph/Generated/Models/PersonOrGroupColumn.cs
index 5cc705060f6..20eb74f060e 100644
--- a/src/Microsoft.Graph/Generated/Models/PersonOrGroupColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/PersonOrGroupColumn.cs
@@ -90,7 +90,7 @@ public PersonOrGroupColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PersonOrGroupColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PersonOrGroupColumn();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowMultipleSelection", AllowMultipleSelection);
             writer.WriteStringValue("chooseFromType", ChooseFromType);
             writer.WriteStringValue("displayAs", DisplayAs);
diff --git a/src/Microsoft.Graph/Generated/Models/PersonType.cs b/src/Microsoft.Graph/Generated/Models/PersonType.cs
index c4a3a738914..8ae3516de41 100644
--- a/src/Microsoft.Graph/Generated/Models/PersonType.cs
+++ b/src/Microsoft.Graph/Generated/Models/PersonType.cs
@@ -84,7 +84,7 @@ public PersonType()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PersonType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PersonType();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("class", Class);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("subclass", Subclass);
diff --git a/src/Microsoft.Graph/Generated/Models/Phone.cs b/src/Microsoft.Graph/Generated/Models/Phone.cs
index 3f88a7a4b07..c81f04b2c2f 100644
--- a/src/Microsoft.Graph/Generated/Models/Phone.cs
+++ b/src/Microsoft.Graph/Generated/Models/Phone.cs
@@ -106,7 +106,7 @@ public Phone()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Phone CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Phone();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("language", Language);
             writer.WriteStringValue("number", Number);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethod.cs
index 10a50e44875..69e7ba92347 100644
--- a/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethod.cs
@@ -54,7 +54,7 @@ public PhoneAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PhoneAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PhoneAuthenticationMethod();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("phoneNumber", PhoneNumber);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AuthenticationPhoneType>("phoneType", PhoneType);
diff --git a/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethodCollectionResponse.cs
index c6d8127ff70..bd38d726fcd 100644
--- a/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PhoneAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PhoneAuthenticationMethodCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PhoneAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PhoneAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PhoneAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PhoneUserConversationMember.cs b/src/Microsoft.Graph/Generated/Models/PhoneUserConversationMember.cs
index d561bdc8e43..22ad4f05e3e 100644
--- a/src/Microsoft.Graph/Generated/Models/PhoneUserConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/PhoneUserConversationMember.cs
@@ -42,7 +42,7 @@ public PhoneUserConversationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PhoneUserConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PhoneUserConversationMember();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("phoneNumber", PhoneNumber);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Photo.cs b/src/Microsoft.Graph/Generated/Models/Photo.cs
index eba0d4df21b..4fc09605aab 100644
--- a/src/Microsoft.Graph/Generated/Models/Photo.cs
+++ b/src/Microsoft.Graph/Generated/Models/Photo.cs
@@ -126,7 +126,7 @@ public Photo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Photo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Photo();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("cameraMake", CameraMake);
             writer.WriteStringValue("cameraModel", CameraModel);
             writer.WriteDoubleValue("exposureDenominator", ExposureDenominator);
diff --git a/src/Microsoft.Graph/Generated/Models/PhysicalAddress.cs b/src/Microsoft.Graph/Generated/Models/PhysicalAddress.cs
index 62c0167b38f..0b0de232319 100644
--- a/src/Microsoft.Graph/Generated/Models/PhysicalAddress.cs
+++ b/src/Microsoft.Graph/Generated/Models/PhysicalAddress.cs
@@ -132,7 +132,7 @@ public PhysicalAddress()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PhysicalAddress CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PhysicalAddress();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("city", City);
             writer.WriteStringValue("countryOrRegion", CountryOrRegion);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PhysicalOfficeAddress.cs b/src/Microsoft.Graph/Generated/Models/PhysicalOfficeAddress.cs
index 3ced9f705f1..e0eca1c90ae 100644
--- a/src/Microsoft.Graph/Generated/Models/PhysicalOfficeAddress.cs
+++ b/src/Microsoft.Graph/Generated/Models/PhysicalOfficeAddress.cs
@@ -148,7 +148,7 @@ public PhysicalOfficeAddress()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PhysicalOfficeAddress CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PhysicalOfficeAddress();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("city", City);
             writer.WriteStringValue("countryOrRegion", CountryOrRegion);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfo.cs b/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfo.cs
index 183952016b9..ea37030abd4 100644
--- a/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfo.cs
@@ -35,7 +35,7 @@ public partial class PinnedChatMessageInfo : global::Microsoft.Graph.Models.Enti
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PinnedChatMessageInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PinnedChatMessageInfo();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ChatMessage>("message", Message);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfoCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfoCollectionResponse.cs
index f3e8f157afb..7730e3d7d28 100644
--- a/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfoCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PinnedChatMessageInfoCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PinnedChatMessageInfoCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PinnedChatMessageInfoCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PinnedChatMessageInfoCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PinnedChatMessageInfo>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Pkcs12Certificate.cs b/src/Microsoft.Graph/Generated/Models/Pkcs12Certificate.cs
index 078d8f5d9b4..e83abcc218f 100644
--- a/src/Microsoft.Graph/Generated/Models/Pkcs12Certificate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Pkcs12Certificate.cs
@@ -58,7 +58,7 @@ public Pkcs12Certificate() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Pkcs12Certificate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Pkcs12Certificate();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("password", Password);
             writer.WriteStringValue("pkcs12Value", Pkcs12Value);
diff --git a/src/Microsoft.Graph/Generated/Models/Pkcs12CertificateInformation.cs b/src/Microsoft.Graph/Generated/Models/Pkcs12CertificateInformation.cs
index e4a0894d6ff..98794598b5e 100644
--- a/src/Microsoft.Graph/Generated/Models/Pkcs12CertificateInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Pkcs12CertificateInformation.cs
@@ -86,7 +86,7 @@ public Pkcs12CertificateInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Pkcs12CertificateInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Pkcs12CertificateInformation();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isActive", IsActive);
             writer.WriteLongValue("notAfter", NotAfter);
             writer.WriteLongValue("notBefore", NotBefore);
diff --git a/src/Microsoft.Graph/Generated/Models/Place.cs b/src/Microsoft.Graph/Generated/Models/Place.cs
index 17eb632c71b..998b049057f 100644
--- a/src/Microsoft.Graph/Generated/Models/Place.cs
+++ b/src/Microsoft.Graph/Generated/Models/Place.cs
@@ -83,7 +83,7 @@ public string Phone
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Place CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -112,7 +112,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PhysicalAddress>("address", Address);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/Planner.cs b/src/Microsoft.Graph/Generated/Models/Planner.cs
index cfd2f706a5e..d9a3de15305 100644
--- a/src/Microsoft.Graph/Generated/Models/Planner.cs
+++ b/src/Microsoft.Graph/Generated/Models/Planner.cs
@@ -67,7 +67,7 @@ public partial class Planner : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Planner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Planner();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerBucket>("buckets", Buckets);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerPlan>("plans", Plans);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerAppliedCategories.cs b/src/Microsoft.Graph/Generated/Models/PlannerAppliedCategories.cs
index 0089cc0ba51..abcf005f1a6 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerAppliedCategories.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerAppliedCategories.cs
@@ -52,7 +52,7 @@ public PlannerAppliedCategories()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerAppliedCategories CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerAppliedCategories();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerAssignedToTaskBoardTaskFormat.cs b/src/Microsoft.Graph/Generated/Models/PlannerAssignedToTaskBoardTaskFormat.cs
index 11f77078e74..6a3c6390d64 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerAssignedToTaskBoardTaskFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerAssignedToTaskBoardTaskFormat.cs
@@ -51,7 +51,7 @@ public string UnassignedOrderHint
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PlannerOrderHintsByAssignee>("orderHintsByAssignee", OrderHintsByAssignee);
             writer.WriteStringValue("unassignedOrderHint", UnassignedOrderHint);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerAssignments.cs b/src/Microsoft.Graph/Generated/Models/PlannerAssignments.cs
index 68927aff857..02ea64eb5cd 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerAssignments.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerAssignments.cs
@@ -52,7 +52,7 @@ public PlannerAssignments()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerAssignments CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerAssignments();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerBucket.cs b/src/Microsoft.Graph/Generated/Models/PlannerBucket.cs
index d435f8a3224..74ff287b53e 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerBucket.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerBucket.cs
@@ -83,7 +83,7 @@ public string PlanId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerBucket CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerBucket();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("orderHint", OrderHint);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerBucketCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PlannerBucketCollectionResponse.cs
index a636ba95098..065bfc36eab 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerBucketCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerBucketCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PlannerBucketCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerBucketCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerBucketCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerBucket>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerBucketTaskBoardTaskFormat.cs b/src/Microsoft.Graph/Generated/Models/PlannerBucketTaskBoardTaskFormat.cs
index 81d5d5bfca8..491741e099c 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerBucketTaskBoardTaskFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerBucketTaskBoardTaskFormat.cs
@@ -35,7 +35,7 @@ public string OrderHint
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("orderHint", OrderHint);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerCategoryDescriptions.cs b/src/Microsoft.Graph/Generated/Models/PlannerCategoryDescriptions.cs
index d3989452e2a..1622c8ca1c6 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerCategoryDescriptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerCategoryDescriptions.cs
@@ -452,7 +452,7 @@ public PlannerCategoryDescriptions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerCategoryDescriptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerCategoryDescriptions();
         }
         /// <summary>
@@ -497,7 +497,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("category1", Category1);
             writer.WriteStringValue("category10", Category10);
             writer.WriteStringValue("category11", Category11);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerChecklistItems.cs b/src/Microsoft.Graph/Generated/Models/PlannerChecklistItems.cs
index b1a05f9f1ca..a498a29b315 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerChecklistItems.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerChecklistItems.cs
@@ -52,7 +52,7 @@ public PlannerChecklistItems()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerChecklistItems CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerChecklistItems();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerExternalReferences.cs b/src/Microsoft.Graph/Generated/Models/PlannerExternalReferences.cs
index defac7e3810..dace8b8ca8e 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerExternalReferences.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerExternalReferences.cs
@@ -52,7 +52,7 @@ public PlannerExternalReferences()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerExternalReferences CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerExternalReferences();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerGroup.cs b/src/Microsoft.Graph/Generated/Models/PlannerGroup.cs
index 65a2a8b6975..6d50c3f9b2d 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerGroup.cs
@@ -35,7 +35,7 @@ public partial class PlannerGroup : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerGroup();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerPlan>("plans", Plans);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerOrderHintsByAssignee.cs b/src/Microsoft.Graph/Generated/Models/PlannerOrderHintsByAssignee.cs
index 9a2d526ab50..fe7458260aa 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerOrderHintsByAssignee.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerOrderHintsByAssignee.cs
@@ -52,7 +52,7 @@ public PlannerOrderHintsByAssignee()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerOrderHintsByAssignee CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerOrderHintsByAssignee();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerPlan.cs b/src/Microsoft.Graph/Generated/Models/PlannerPlan.cs
index 124bc102440..a5753da7c21 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerPlan.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerPlan.cs
@@ -137,7 +137,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerPlan CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerPlan();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerBucket>("buckets", Buckets);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PlannerPlanContainer>("container", Container);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerPlanCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PlannerPlanCollectionResponse.cs
index 886d24e6a8e..18b2d3091a2 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerPlanCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerPlanCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PlannerPlanCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerPlanCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerPlanCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerPlan>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerPlanContainer.cs b/src/Microsoft.Graph/Generated/Models/PlannerPlanContainer.cs
index 883f8c8c8c9..61c7a4a9120 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerPlanContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerPlanContainer.cs
@@ -90,7 +90,7 @@ public PlannerPlanContainer()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerPlanContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerPlanContainer();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("containerId", ContainerId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PlannerContainerType>("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerPlanDetails.cs b/src/Microsoft.Graph/Generated/Models/PlannerPlanDetails.cs
index 0723b9ac43e..8ea93614407 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerPlanDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerPlanDetails.cs
@@ -51,7 +51,7 @@ public partial class PlannerPlanDetails : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerPlanDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerPlanDetails();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PlannerCategoryDescriptions>("categoryDescriptions", CategoryDescriptions);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PlannerUserIds>("sharedWith", SharedWith);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerProgressTaskBoardTaskFormat.cs b/src/Microsoft.Graph/Generated/Models/PlannerProgressTaskBoardTaskFormat.cs
index 3c4e7f0c8d8..9063254b9d6 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerProgressTaskBoardTaskFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerProgressTaskBoardTaskFormat.cs
@@ -35,7 +35,7 @@ public string OrderHint
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("orderHint", OrderHint);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerTask.cs b/src/Microsoft.Graph/Generated/Models/PlannerTask.cs
index 6e8a8af4e33..c8b25621202 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerTask.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerTask.cs
@@ -309,7 +309,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerTask CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerTask();
         }
         /// <summary>
@@ -353,7 +353,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("activeChecklistItemCount", ActiveChecklistItemCount);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PlannerAppliedCategories>("appliedCategories", AppliedCategories);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerTaskCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PlannerTaskCollectionResponse.cs
index 8ca98b860df..c52fdcdaf18 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerTaskCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerTaskCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PlannerTaskCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerTaskCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerTaskCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerTask>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerTaskDetails.cs b/src/Microsoft.Graph/Generated/Models/PlannerTaskDetails.cs
index b3ab676e111..8d7ccda9a08 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerTaskDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerTaskDetails.cs
@@ -73,7 +73,7 @@ public string Description
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerTaskDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerTaskDetails();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PlannerChecklistItems>("checklist", Checklist);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerUser.cs b/src/Microsoft.Graph/Generated/Models/PlannerUser.cs
index ec11a0cb67d..a085260b715 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerUser.cs
@@ -51,7 +51,7 @@ public partial class PlannerUser : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlannerUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerUser();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerPlan>("plans", Plans);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlannerTask>("tasks", Tasks);
diff --git a/src/Microsoft.Graph/Generated/Models/PlannerUserIds.cs b/src/Microsoft.Graph/Generated/Models/PlannerUserIds.cs
index 0bdf3d5e854..d5b52b4e761 100644
--- a/src/Microsoft.Graph/Generated/Models/PlannerUserIds.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlannerUserIds.cs
@@ -52,7 +52,7 @@ public PlannerUserIds()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PlannerUserIds CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlannerUserIds();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethod.cs
index 443c3ee02ba..8a1912021eb 100644
--- a/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethod.cs
@@ -76,7 +76,7 @@ public PlatformCredentialAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlatformCredentialAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlatformCredentialAuthenticationMethod();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Device>("device", Device);
diff --git a/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethodCollectionResponse.cs
index 1811fe4217f..5abb1dc6611 100644
--- a/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlatformCredentialAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PlatformCredentialAuthenticationMethodCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlatformCredentialAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlatformCredentialAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PlatformCredentialAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PlayPromptOperation.cs b/src/Microsoft.Graph/Generated/Models/PlayPromptOperation.cs
index 929fa2a53ea..cfe8988f0b4 100644
--- a/src/Microsoft.Graph/Generated/Models/PlayPromptOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/PlayPromptOperation.cs
@@ -19,7 +19,7 @@ public partial class PlayPromptOperation : global::Microsoft.Graph.Models.CommsO
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PlayPromptOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PlayPromptOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyBase.cs b/src/Microsoft.Graph/Generated/Models/PolicyBase.cs
index 6db0db7cd95..34f73be1550 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyBase.cs
@@ -58,7 +58,7 @@ public PolicyBase() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -95,7 +95,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyBinding.cs b/src/Microsoft.Graph/Generated/Models/PolicyBinding.cs
index 4999d1fa272..fb9b43967e3 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyBinding.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyBinding.cs
@@ -84,7 +84,7 @@ public PolicyBinding()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PolicyBinding CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyBinding();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScopeBase>("exclusions", Exclusions);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScopeBase>("inclusions", Inclusions);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyLocation.cs b/src/Microsoft.Graph/Generated/Models/PolicyLocation.cs
index 8d13a2b0ca8..273ca534f91 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyLocation.cs
@@ -68,7 +68,7 @@ public PolicyLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PolicyLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyLocationApplication.cs b/src/Microsoft.Graph/Generated/Models/PolicyLocationApplication.cs
index 738e8f4e20b..e055f97d384 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyLocationApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyLocationApplication.cs
@@ -26,7 +26,7 @@ public PolicyLocationApplication() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyLocationApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyLocationApplication();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyLocationDomain.cs b/src/Microsoft.Graph/Generated/Models/PolicyLocationDomain.cs
index 5a95400bfa3..e7d76cd8122 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyLocationDomain.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyLocationDomain.cs
@@ -26,7 +26,7 @@ public PolicyLocationDomain() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyLocationDomain CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyLocationDomain();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyLocationUrl.cs b/src/Microsoft.Graph/Generated/Models/PolicyLocationUrl.cs
index bbc9b33aa98..a9a7a5ea068 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyLocationUrl.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyLocationUrl.cs
@@ -26,7 +26,7 @@ public PolicyLocationUrl() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyLocationUrl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyLocationUrl();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyRoot.cs b/src/Microsoft.Graph/Generated/Models/PolicyRoot.cs
index 4e715474a56..ee0489f5d7b 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyRoot.cs
@@ -339,7 +339,7 @@ public partial class PolicyRoot : global::Microsoft.Graph.Models.Entity, IParsab
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyRoot();
         }
         /// <summary>
@@ -378,7 +378,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy>("activityBasedTimeoutPolicies", ActivityBasedTimeoutPolicies);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AdminConsentRequestPolicy>("adminConsentRequestPolicy", AdminConsentRequestPolicy);
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyScopeBase.cs b/src/Microsoft.Graph/Generated/Models/PolicyScopeBase.cs
index 759657a3da0..4fd31847b7c 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyScopeBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyScopeBase.cs
@@ -96,7 +96,7 @@ public PolicyScopeBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PolicyScopeBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -126,7 +126,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserActivityTypes>("activities", Activities);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExecutionMode>("executionMode", ExecutionMode);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PolicyLocation>("locations", Locations);
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyTemplate.cs b/src/Microsoft.Graph/Generated/Models/PolicyTemplate.cs
index ae3d9a93acf..f100bca7b21 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyTemplate.cs
@@ -51,7 +51,7 @@ public partial class PolicyTemplate : global::Microsoft.Graph.Models.Entity, IPa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyTemplate();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MultiTenantOrganizationIdentitySyncPolicyTemplate>("multiTenantOrganizationIdentitySynchronization", MultiTenantOrganizationIdentitySynchronization);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MultiTenantOrganizationPartnerConfigurationTemplate>("multiTenantOrganizationPartnerConfiguration", MultiTenantOrganizationPartnerConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyTenantScope.cs b/src/Microsoft.Graph/Generated/Models/PolicyTenantScope.cs
index 9426c5fe9d8..fdc5b397d1e 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyTenantScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyTenantScope.cs
@@ -42,7 +42,7 @@ public PolicyTenantScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyTenantScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyTenantScope();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PolicyBinding>("policyScope", PolicyScope);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PolicyUserScope.cs b/src/Microsoft.Graph/Generated/Models/PolicyUserScope.cs
index c22b1a6e4c5..5ba54de0cc9 100644
--- a/src/Microsoft.Graph/Generated/Models/PolicyUserScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/PolicyUserScope.cs
@@ -26,7 +26,7 @@ public PolicyUserScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PolicyUserScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PolicyUserScope();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/PositiveReinforcementNotification.cs b/src/Microsoft.Graph/Generated/Models/PositiveReinforcementNotification.cs
index d7773e1eb06..467fbd67425 100644
--- a/src/Microsoft.Graph/Generated/Models/PositiveReinforcementNotification.cs
+++ b/src/Microsoft.Graph/Generated/Models/PositiveReinforcementNotification.cs
@@ -32,7 +32,7 @@ public PositiveReinforcementNotification() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PositiveReinforcementNotification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PositiveReinforcementNotification();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.NotificationDeliveryPreference>("deliveryPreference", DeliveryPreference);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Post.cs b/src/Microsoft.Graph/Generated/Models/Post.cs
index 5313f32c939..74caf7c1ca0 100644
--- a/src/Microsoft.Graph/Generated/Models/Post.cs
+++ b/src/Microsoft.Graph/Generated/Models/Post.cs
@@ -214,7 +214,7 @@ public Post() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Post CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Post();
         }
         /// <summary>
@@ -246,7 +246,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Attachment>("attachments", Attachments);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("body", Body);
diff --git a/src/Microsoft.Graph/Generated/Models/PostCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PostCollectionResponse.cs
index 6da4950421a..448925be6b6 100644
--- a/src/Microsoft.Graph/Generated/Models/PostCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PostCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PostCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PostCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PostCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Post>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PreAuthorizedApplication.cs b/src/Microsoft.Graph/Generated/Models/PreAuthorizedApplication.cs
index 1d9c22d12d3..a267d34f471 100644
--- a/src/Microsoft.Graph/Generated/Models/PreAuthorizedApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/PreAuthorizedApplication.cs
@@ -84,7 +84,7 @@ public PreAuthorizedApplication()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PreAuthorizedApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PreAuthorizedApplication();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appId", AppId);
             writer.WriteCollectionOfPrimitiveValues<string>("delegatedPermissionIds", DelegatedPermissionIds);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Presence.cs b/src/Microsoft.Graph/Generated/Models/Presence.cs
index 9975cda20ef..9645a484849 100644
--- a/src/Microsoft.Graph/Generated/Models/Presence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Presence.cs
@@ -99,7 +99,7 @@ public string SequenceNumber
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Presence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Presence();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("activity", Activity);
             writer.WriteStringValue("availability", Availability);
diff --git a/src/Microsoft.Graph/Generated/Models/PresenceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PresenceCollectionResponse.cs
index a171c606848..71e0854e302 100644
--- a/src/Microsoft.Graph/Generated/Models/PresenceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PresenceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PresenceCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PresenceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PresenceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Presence>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PresenceStatusMessage.cs b/src/Microsoft.Graph/Generated/Models/PresenceStatusMessage.cs
index 244f37bf9f3..50c550680b4 100644
--- a/src/Microsoft.Graph/Generated/Models/PresenceStatusMessage.cs
+++ b/src/Microsoft.Graph/Generated/Models/PresenceStatusMessage.cs
@@ -90,7 +90,7 @@ public PresenceStatusMessage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PresenceStatusMessage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PresenceStatusMessage();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("expiryDateTime", ExpiryDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PrincipalResourceMembershipsScope.cs b/src/Microsoft.Graph/Generated/Models/PrincipalResourceMembershipsScope.cs
index d2c4772b5f0..c4737ab1e8c 100644
--- a/src/Microsoft.Graph/Generated/Models/PrincipalResourceMembershipsScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrincipalResourceMembershipsScope.cs
@@ -58,7 +58,7 @@ public PrincipalResourceMembershipsScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrincipalResourceMembershipsScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrincipalResourceMembershipsScope();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewScope>("principalScopes", PrincipalScopes);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AccessReviewScope>("resourceScopes", ResourceScopes);
diff --git a/src/Microsoft.Graph/Generated/Models/Print.cs b/src/Microsoft.Graph/Generated/Models/Print.cs
index 62ffe185a4d..f8419e03083 100644
--- a/src/Microsoft.Graph/Generated/Models/Print.cs
+++ b/src/Microsoft.Graph/Generated/Models/Print.cs
@@ -164,7 +164,7 @@ public Print()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Print CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Print();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintConnector>("connectors", Connectors);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintOperation>("operations", Operations);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintCertificateSigningRequest.cs b/src/Microsoft.Graph/Generated/Models/PrintCertificateSigningRequest.cs
index de8cf6cc9a1..b4b4d19b819 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintCertificateSigningRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintCertificateSigningRequest.cs
@@ -84,7 +84,7 @@ public PrintCertificateSigningRequest()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintCertificateSigningRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintCertificateSigningRequest();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("transportKey", TransportKey);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintConnector.cs b/src/Microsoft.Graph/Generated/Models/PrintConnector.cs
index d6ec1fa31f0..3c8f408c5d1 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintConnector.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintConnector.cs
@@ -105,7 +105,7 @@ public DateTimeOffset? RegisteredDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintConnector CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintConnector();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appVersion", AppVersion);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintConnectorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintConnectorCollectionResponse.cs
index f1bd360d523..fc0ada84d5f 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintConnectorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintConnectorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintConnectorCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintConnectorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintConnectorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintConnector>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintDocument.cs b/src/Microsoft.Graph/Generated/Models/PrintDocument.cs
index 2f385f8dd63..997c258830e 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintDocument.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintDocument.cs
@@ -69,7 +69,7 @@ public DateTimeOffset? UploadedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintDocument CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintDocument();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintDocumentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintDocumentCollectionResponse.cs
index 051112eeef2..30c611a5b7e 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintDocumentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintDocumentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintDocumentCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintDocumentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintDocumentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintDocument>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintDocumentUploadProperties.cs b/src/Microsoft.Graph/Generated/Models/PrintDocumentUploadProperties.cs
index a1f3d714931..d466a848486 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintDocumentUploadProperties.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintDocumentUploadProperties.cs
@@ -90,7 +90,7 @@ public PrintDocumentUploadProperties()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintDocumentUploadProperties CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintDocumentUploadProperties();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteStringValue("documentName", DocumentName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintJob.cs b/src/Microsoft.Graph/Generated/Models/PrintJob.cs
index 408976de97e..16eb5f68bb2 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintJob.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintJob.cs
@@ -155,7 +155,7 @@ public string RedirectedTo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintJob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintJob();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("acknowledgedDateTime", AcknowledgedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintJobConfiguration>("configuration", Configuration);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintJobCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintJobCollectionResponse.cs
index d6354598b0c..319182ef9ae 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintJobCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintJobCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintJobCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintJobCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintJobCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintJobConfiguration.cs b/src/Microsoft.Graph/Generated/Models/PrintJobConfiguration.cs
index 88a3750c914..74943511056 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintJobConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintJobConfiguration.cs
@@ -236,7 +236,7 @@ public PrintJobConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintJobConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintJobConfiguration();
         }
         /// <summary>
@@ -275,7 +275,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("collate", Collate);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrintColorMode>("colorMode", ColorMode);
             writer.WriteIntValue("copies", Copies);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintJobStatus.cs b/src/Microsoft.Graph/Generated/Models/PrintJobStatus.cs
index dc3b699a2e0..7cceddc4be7 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintJobStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintJobStatus.cs
@@ -96,7 +96,7 @@ public PrintJobStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintJobStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintJobStatus();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.PrintJobStateDetail>("details", Details);
             writer.WriteBoolValue("isAcquiredByPrinter", IsAcquiredByPrinter);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintMargin.cs b/src/Microsoft.Graph/Generated/Models/PrintMargin.cs
index c74695a72d0..203f31de248 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintMargin.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintMargin.cs
@@ -76,7 +76,7 @@ public PrintMargin()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintMargin CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintMargin();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("bottom", Bottom);
             writer.WriteIntValue("left", Left);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintOperation.cs b/src/Microsoft.Graph/Generated/Models/PrintOperation.cs
index 97111d2f51e..a6eb339c141 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintOperation.cs
@@ -41,7 +41,7 @@ public DateTimeOffset? CreatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -67,7 +67,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintOperationStatus>("status", Status);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintOperationCollectionResponse.cs
index c94dc910be7..aae24e05384 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintOperationCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintOperationStatus.cs b/src/Microsoft.Graph/Generated/Models/PrintOperationStatus.cs
index 9cf5c076a71..2ed18c04714 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintOperationStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintOperationStatus.cs
@@ -74,7 +74,7 @@ public PrintOperationStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintOperationStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintOperationStatus();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrintOperationProcessingState>("state", State);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintService.cs b/src/Microsoft.Graph/Generated/Models/PrintService.cs
index 8966556dbbb..8f9e405a085 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintService.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintService.cs
@@ -35,7 +35,7 @@ public partial class PrintService : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintService CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintService();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintServiceEndpoint>("endpoints", Endpoints);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintServiceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintServiceCollectionResponse.cs
index 1e9a91215e0..d3552fe5bc6 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintServiceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintServiceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintServiceCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintServiceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintServiceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintService>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintServiceEndpoint.cs b/src/Microsoft.Graph/Generated/Models/PrintServiceEndpoint.cs
index a8fd5348cd7..ff4d58d3af9 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintServiceEndpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintServiceEndpoint.cs
@@ -51,7 +51,7 @@ public string Uri
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintServiceEndpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintServiceEndpoint();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("uri", Uri);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintServiceEndpointCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintServiceEndpointCollectionResponse.cs
index 1876f6eadb8..dddc2efee0b 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintServiceEndpointCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintServiceEndpointCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintServiceEndpointCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintServiceEndpointCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintServiceEndpointCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintServiceEndpoint>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintSettings.cs b/src/Microsoft.Graph/Generated/Models/PrintSettings.cs
index 559843bec32..f711c151410 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintSettings.cs
@@ -74,7 +74,7 @@ public PrintSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintSettings();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("documentConversionEnabled", DocumentConversionEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrinterDiscoverySettings>("printerDiscoverySettings", PrinterDiscoverySettings);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintTask.cs b/src/Microsoft.Graph/Generated/Models/PrintTask.cs
index c2f1be4d60d..cc06029c300 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintTask.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintTask.cs
@@ -83,7 +83,7 @@ public string ParentUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintTask CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintTask();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintTaskDefinition>("definition", Definition);
             writer.WriteStringValue("parentUrl", ParentUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintTaskCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintTaskCollectionResponse.cs
index 7217e715a92..c55e9d7ad94 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintTaskCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintTaskCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintTaskCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintTaskCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintTaskCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintTask>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintTaskDefinition.cs b/src/Microsoft.Graph/Generated/Models/PrintTaskDefinition.cs
index 2c8d91d1969..551258a5004 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintTaskDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintTaskDefinition.cs
@@ -67,7 +67,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintTaskDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintTaskDefinition();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppIdentity>("createdBy", CreatedBy);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintTaskDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintTaskDefinitionCollectionResponse.cs
index 01d294294df..169fb978b95 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintTaskDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintTaskDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintTaskDefinitionCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintTaskDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintTaskDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintTaskDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintTaskStatus.cs b/src/Microsoft.Graph/Generated/Models/PrintTaskStatus.cs
index 6b5686d73ff..e0469a6373c 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintTaskStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintTaskStatus.cs
@@ -74,7 +74,7 @@ public PrintTaskStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrintTaskStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintTaskStatus();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrintTaskProcessingState>("state", State);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintTaskTrigger.cs b/src/Microsoft.Graph/Generated/Models/PrintTaskTrigger.cs
index 543b45d0e53..23179f5e258 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintTaskTrigger.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintTaskTrigger.cs
@@ -41,7 +41,7 @@ public partial class PrintTaskTrigger : global::Microsoft.Graph.Models.Entity, I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintTaskTrigger CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintTaskTrigger();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintTaskDefinition>("definition", Definition);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrintEvent>("event", Event);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintTaskTriggerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintTaskTriggerCollectionResponse.cs
index 259b2cba0ee..9e98c655065 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintTaskTriggerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintTaskTriggerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintTaskTriggerCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintTaskTriggerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintTaskTriggerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintTaskTrigger>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintUsage.cs b/src/Microsoft.Graph/Generated/Models/PrintUsage.cs
index 6208326cfa5..f587778bc00 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintUsage.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintUsage.cs
@@ -86,7 +86,7 @@ public Date? UsageDate
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintUsage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -122,7 +122,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteLongValue("blackAndWhitePageCount", BlackAndWhitePageCount);
             writer.WriteLongValue("colorPageCount", ColorPageCount);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinter.cs b/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinter.cs
index 08f09d5e4e2..9fee9aaa880 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinter.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinter.cs
@@ -58,7 +58,7 @@ public PrintUsageByPrinter() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintUsageByPrinter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintUsageByPrinter();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("printerId", PrinterId);
             writer.WriteStringValue("printerName", PrinterName);
diff --git a/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinterCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinterCollectionResponse.cs
index 931fab04fd2..7064bbcff4e 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinterCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintUsageByPrinterCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintUsageByPrinterCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintUsageByPrinterCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintUsageByPrinterCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintUsageByPrinter>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintUsageByUser.cs b/src/Microsoft.Graph/Generated/Models/PrintUsageByUser.cs
index 3bf9e727c27..26981855e80 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintUsageByUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintUsageByUser.cs
@@ -42,7 +42,7 @@ public PrintUsageByUser() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintUsageByUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintUsageByUser();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrintUsageByUserCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrintUsageByUserCollectionResponse.cs
index ac1f4f0e59a..fcc3b0d26c8 100644
--- a/src/Microsoft.Graph/Generated/Models/PrintUsageByUserCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrintUsageByUserCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrintUsageByUserCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrintUsageByUserCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrintUsageByUserCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintUsageByUser>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Printer.cs b/src/Microsoft.Graph/Generated/Models/Printer.cs
index fca177f3e96..e25b20ee986 100644
--- a/src/Microsoft.Graph/Generated/Models/Printer.cs
+++ b/src/Microsoft.Graph/Generated/Models/Printer.cs
@@ -98,7 +98,7 @@ public Printer() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Printer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Printer();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintConnector>("connectors", Connectors);
             writer.WriteBoolValue("hasPhysicalDevice", HasPhysicalDevice);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterBase.cs b/src/Microsoft.Graph/Generated/Models/PrinterBase.cs
index f581ccd4a18..103d613ba25 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterBase.cs
@@ -153,7 +153,7 @@ public string Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrinterBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -187,7 +187,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrinterCapabilities>("capabilities", Capabilities);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrinterDefaults>("defaults", Defaults);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterCapabilities.cs b/src/Microsoft.Graph/Generated/Models/PrinterCapabilities.cs
index 296403c86c1..2e60dc53031 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterCapabilities.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterCapabilities.cs
@@ -412,7 +412,7 @@ public PrinterCapabilities()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrinterCapabilities CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterCapabilities();
         }
         /// <summary>
@@ -457,7 +457,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<int?>("bottomMargins", BottomMargins);
             writer.WriteBoolValue("collation", Collation);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.PrintColorMode>("colorModes", ColorModes);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrinterCollectionResponse.cs
index 9e029c00e60..0a5d58664c2 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrinterCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrinterCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Printer>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterCreateOperation.cs b/src/Microsoft.Graph/Generated/Models/PrinterCreateOperation.cs
index 08f4661aabe..57dab0ed0af 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterCreateOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterCreateOperation.cs
@@ -58,7 +58,7 @@ public PrinterCreateOperation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrinterCreateOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterCreateOperation();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("certificate", Certificate);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Printer>("printer", Printer);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterDefaults.cs b/src/Microsoft.Graph/Generated/Models/PrinterDefaults.cs
index c6fd27c22c0..24560c4d59f 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterDefaults.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterDefaults.cs
@@ -224,7 +224,7 @@ public PrinterDefaults()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrinterDefaults CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterDefaults();
         }
         /// <summary>
@@ -261,7 +261,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrintColorMode>("colorMode", ColorMode);
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteIntValue("copiesPerJob", CopiesPerJob);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterDiscoverySettings.cs b/src/Microsoft.Graph/Generated/Models/PrinterDiscoverySettings.cs
index 464325c5b13..086b96680df 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterDiscoverySettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterDiscoverySettings.cs
@@ -68,7 +68,7 @@ public PrinterDiscoverySettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrinterDiscoverySettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterDiscoverySettings();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AirPrintSettings>("airPrint", AirPrint);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterLocation.cs b/src/Microsoft.Graph/Generated/Models/PrinterLocation.cs
index d5d6502e9ce..125655b0668 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterLocation.cs
@@ -294,7 +294,7 @@ public PrinterLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrinterLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterLocation();
         }
         /// <summary>
@@ -331,7 +331,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("altitudeInMeters", AltitudeInMeters);
             writer.WriteStringValue("building", Building);
             writer.WriteStringValue("city", City);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterShare.cs b/src/Microsoft.Graph/Generated/Models/PrinterShare.cs
index 6d32c0d7010..eed20f405c8 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterShare.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterShare.cs
@@ -102,7 +102,7 @@ public PrinterShare() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrinterShare CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterShare();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowAllUsers", AllowAllUsers);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Group>("allowedGroups", AllowedGroups);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterShareCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrinterShareCollectionResponse.cs
index 63b56bfd915..48030230163 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterShareCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterShareCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrinterShareCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrinterShareCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterShareCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrinterShare>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterShareViewpoint.cs b/src/Microsoft.Graph/Generated/Models/PrinterShareViewpoint.cs
index 06a1417bb5d..bd9c173610f 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterShareViewpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterShareViewpoint.cs
@@ -58,7 +58,7 @@ public PrinterShareViewpoint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrinterShareViewpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterShareViewpoint();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastUsedDateTime", LastUsedDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PrinterStatus.cs b/src/Microsoft.Graph/Generated/Models/PrinterStatus.cs
index 97687d17bc1..b25a4e7cf62 100644
--- a/src/Microsoft.Graph/Generated/Models/PrinterStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrinterStatus.cs
@@ -90,7 +90,7 @@ public PrinterStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrinterStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrinterStatus();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.PrinterProcessingStateDetail>("details", Details);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Privacy.cs b/src/Microsoft.Graph/Generated/Models/Privacy.cs
index 51c2c75d22b..4d957278ad1 100644
--- a/src/Microsoft.Graph/Generated/Models/Privacy.cs
+++ b/src/Microsoft.Graph/Generated/Models/Privacy.cs
@@ -68,7 +68,7 @@ public Privacy()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Privacy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Privacy();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SubjectRightsRequest>("subjectRightsRequests", SubjectRightsRequests);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivacyProfile.cs b/src/Microsoft.Graph/Generated/Models/PrivacyProfile.cs
index f14799235cd..a1550487d80 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivacyProfile.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivacyProfile.cs
@@ -84,7 +84,7 @@ public PrivacyProfile()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PrivacyProfile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivacyProfile();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contactEmail", ContactEmail);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("statementUrl", StatementUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroup.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroup.cs
index fbd489af38c..c9e94403e5b 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroup.cs
@@ -131,7 +131,7 @@ public partial class PrivilegedAccessGroup : global::Microsoft.Graph.Models.Enti
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroup();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Approval>("assignmentApprovals", AssignmentApprovals);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance>("assignmentScheduleInstances", AssignmentScheduleInstances);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentSchedule.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentSchedule.cs
index 83649d6d91a..e9a4ea131d6 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentSchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentSchedule.cs
@@ -124,7 +124,7 @@ public PrivilegedAccessGroupAssignmentSchedule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule();
         }
         /// <summary>
@@ -151,7 +151,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupRelationships>("accessId", AccessId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule>("activatedUsing", ActivatedUsing);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleCollectionResponse.cs
index 55dbd868623..ee7073f0f8f 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrivilegedAccessGroupAssignmentScheduleCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentSchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstance.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstance.cs
index d20b3900ae1..52c799e94e3 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstance.cs
@@ -140,7 +140,7 @@ public PrivilegedAccessGroupAssignmentScheduleInstance() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance();
         }
         /// <summary>
@@ -168,7 +168,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupRelationships>("accessId", AccessId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance>("activatedUsing", ActivatedUsing);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstanceCollectionResponse.cs
index 4d34dd748b8..4d78c3e8c00 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleInstanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrivilegedAccessGroupAssignmentScheduleInstanceCollectionRe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequest.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequest.cs
index de27c9c1014..81f77d062e0 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequest.cs
@@ -144,7 +144,7 @@ public PrivilegedAccessGroupAssignmentScheduleRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupRelationships>("accessId", AccessId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule>("activatedUsing", ActivatedUsing);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequestCollectionResponse.cs
index e9003cba544..cde6581da60 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupAssignmentScheduleRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrivilegedAccessGroupAssignmentScheduleRequestCollectionRes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupAssignmentScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilitySchedule.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilitySchedule.cs
index e9785c0b0d1..4332bce9475 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilitySchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilitySchedule.cs
@@ -102,7 +102,7 @@ public PrivilegedAccessGroupEligibilitySchedule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupRelationships>("accessId", AccessId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Group>("group", Group);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleCollectionResponse.cs
index 44b2c8dea45..a0b251e4652 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrivilegedAccessGroupEligibilityScheduleCollectionResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilitySchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstance.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstance.cs
index 3b4299a664d..e147c7e6f13 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstance.cs
@@ -118,7 +118,7 @@ public PrivilegedAccessGroupEligibilityScheduleInstance() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupRelationships>("accessId", AccessId);
             writer.WriteStringValue("eligibilityScheduleId", EligibilityScheduleId);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstanceCollectionResponse.cs
index 8cb74421a41..200b64b7f11 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleInstanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrivilegedAccessGroupEligibilityScheduleInstanceCollectionR
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequest.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequest.cs
index 2086dd4b908..15e3043e9ce 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequest.cs
@@ -128,7 +128,7 @@ public PrivilegedAccessGroupEligibilityScheduleRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PrivilegedAccessGroupRelationships>("accessId", AccessId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Group>("group", Group);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequestCollectionResponse.cs
index d52c6ba4ae8..e85e47b9b7a 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessGroupEligibilityScheduleRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PrivilegedAccessGroupEligibilityScheduleRequestCollectionRe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrivilegedAccessGroupEligibilityScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessRoot.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessRoot.cs
index 1d82e813577..4b4d156ac10 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessRoot.cs
@@ -35,7 +35,7 @@ public partial class PrivilegedAccessRoot : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PrivilegedAccessRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrivilegedAccessGroup>("group", Group);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessSchedule.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessSchedule.cs
index 876193bf13c..2fbc4e84cb6 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessSchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessSchedule.cs
@@ -79,7 +79,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessSchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -109,7 +109,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("createdUsing", CreatedUsing);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleInstance.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleInstance.cs
index 68070fcb4fa..0300a96c4d6 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleInstance.cs
@@ -31,7 +31,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessScheduleInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -58,7 +58,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleRequest.cs b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleRequest.cs
index bed3f6e50a4..3f61e3cb86c 100644
--- a/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/PrivilegedAccessScheduleRequest.cs
@@ -79,7 +79,7 @@ public string Justification
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PrivilegedAccessScheduleRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -109,7 +109,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ScheduleRequestActions>("action", Action);
             writer.WriteBoolValue("isValidationOnly", IsValidationOnly);
diff --git a/src/Microsoft.Graph/Generated/Models/Process.cs b/src/Microsoft.Graph/Generated/Models/Process.cs
index 77b75c4ae58..fd07d914bba 100644
--- a/src/Microsoft.Graph/Generated/Models/Process.cs
+++ b/src/Microsoft.Graph/Generated/Models/Process.cs
@@ -184,7 +184,7 @@ public Process()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Process CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Process();
         }
         /// <summary>
@@ -216,7 +216,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("accountName", AccountName);
             writer.WriteStringValue("commandLine", CommandLine);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessContentBatchRequest.cs b/src/Microsoft.Graph/Generated/Models/ProcessContentBatchRequest.cs
index 567946d5405..2c5ccf81333 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessContentBatchRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessContentBatchRequest.cs
@@ -100,7 +100,7 @@ public ProcessContentBatchRequest()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProcessContentBatchRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProcessContentBatchRequest();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ProcessContentRequest>("contentToProcess", ContentToProcess);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("requestId", RequestId);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessContentMetadataBase.cs b/src/Microsoft.Graph/Generated/Models/ProcessContentMetadataBase.cs
index 9c21eb53354..32663c79236 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessContentMetadataBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessContentMetadataBase.cs
@@ -146,7 +146,7 @@ public ProcessContentMetadataBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProcessContentMetadataBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -181,7 +181,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ContentBase>("content", Content);
             writer.WriteStringValue("correlationId", CorrelationId);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessContentRequest.cs b/src/Microsoft.Graph/Generated/Models/ProcessContentRequest.cs
index ef01ed22f1c..51a1ec96fd4 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessContentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessContentRequest.cs
@@ -132,7 +132,7 @@ public ProcessContentRequest()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProcessContentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProcessContentRequest();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ActivityMetadata>("activityMetadata", ActivityMetadata);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProcessContentMetadataBase>("contentEntries", ContentEntries);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceMetadata>("deviceMetadata", DeviceMetadata);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessContentResponse.cs b/src/Microsoft.Graph/Generated/Models/ProcessContentResponse.cs
index 266a7401b38..ba2d1fe9ea1 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessContentResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessContentResponse.cs
@@ -90,7 +90,7 @@ public ProcessContentResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProcessContentResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProcessContentResponse();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DlpActionInfo>("policyActions", PolicyActions);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProcessingError>("processingErrors", ProcessingErrors);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessContentResponses.cs b/src/Microsoft.Graph/Generated/Models/ProcessContentResponses.cs
index 276254e4086..d136f7cfa37 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessContentResponses.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessContentResponses.cs
@@ -84,7 +84,7 @@ public ProcessContentResponses()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProcessContentResponses CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProcessContentResponses();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("requestId", RequestId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ProcessContentResponse>("results", Results);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessConversationMetadata.cs b/src/Microsoft.Graph/Generated/Models/ProcessConversationMetadata.cs
index 20f662c0c34..2067cf89840 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessConversationMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessConversationMetadata.cs
@@ -74,7 +74,7 @@ public ProcessConversationMetadata() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProcessConversationMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProcessConversationMetadata();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("accessedResources", AccessedResources);
             writer.WriteStringValue("parentMessageId", ParentMessageId);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessFileMetadata.cs b/src/Microsoft.Graph/Generated/Models/ProcessFileMetadata.cs
index 3c6d8d3ec44..cc8ce6353f5 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessFileMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessFileMetadata.cs
@@ -58,7 +58,7 @@ public ProcessFileMetadata() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProcessFileMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProcessFileMetadata();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CustomMetadataDictionary>("customProperties", CustomProperties);
             writer.WriteStringValue("ownerId", OwnerId);
diff --git a/src/Microsoft.Graph/Generated/Models/ProcessingError.cs b/src/Microsoft.Graph/Generated/Models/ProcessingError.cs
index 9e3096a4369..676929fc7b3 100644
--- a/src/Microsoft.Graph/Generated/Models/ProcessingError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProcessingError.cs
@@ -25,7 +25,7 @@ public partial class ProcessingError : global::Microsoft.Graph.Models.Classifica
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProcessingError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProcessingError();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ContentProcessingErrorType>("errorType", ErrorType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProfileCardAnnotation.cs b/src/Microsoft.Graph/Generated/Models/ProfileCardAnnotation.cs
index 923e0fde3b3..720ec99cfdb 100644
--- a/src/Microsoft.Graph/Generated/Models/ProfileCardAnnotation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProfileCardAnnotation.cs
@@ -84,7 +84,7 @@ public ProfileCardAnnotation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProfileCardAnnotation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProfileCardAnnotation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DisplayNameLocalization>("localizations", Localizations);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ProfileCardProperty.cs b/src/Microsoft.Graph/Generated/Models/ProfileCardProperty.cs
index ac3d7b63736..4491f9db44f 100644
--- a/src/Microsoft.Graph/Generated/Models/ProfileCardProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProfileCardProperty.cs
@@ -51,7 +51,7 @@ public string DirectoryPropertyName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProfileCardProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProfileCardProperty();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProfileCardAnnotation>("annotations", Annotations);
             writer.WriteStringValue("directoryPropertyName", DirectoryPropertyName);
diff --git a/src/Microsoft.Graph/Generated/Models/ProfileCardPropertyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ProfileCardPropertyCollectionResponse.cs
index e90e960b47e..83baafbb44b 100644
--- a/src/Microsoft.Graph/Generated/Models/ProfileCardPropertyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProfileCardPropertyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ProfileCardPropertyCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProfileCardPropertyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProfileCardPropertyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProfileCardProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProfilePhoto.cs b/src/Microsoft.Graph/Generated/Models/ProfilePhoto.cs
index 1a1786dc2cb..420d722f635 100644
--- a/src/Microsoft.Graph/Generated/Models/ProfilePhoto.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProfilePhoto.cs
@@ -31,7 +31,7 @@ public int? Width
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProfilePhoto CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProfilePhoto();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("height", Height);
             writer.WriteIntValue("width", Width);
diff --git a/src/Microsoft.Graph/Generated/Models/ProfilePhotoCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ProfilePhotoCollectionResponse.cs
index 1e725b8ba5e..bad811bfa0d 100644
--- a/src/Microsoft.Graph/Generated/Models/ProfilePhotoCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProfilePhotoCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ProfilePhotoCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProfilePhotoCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProfilePhotoCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProfilePhoto>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Prompt.cs b/src/Microsoft.Graph/Generated/Models/Prompt.cs
index 02f9989db30..7a451354a4f 100644
--- a/src/Microsoft.Graph/Generated/Models/Prompt.cs
+++ b/src/Microsoft.Graph/Generated/Models/Prompt.cs
@@ -52,7 +52,7 @@ public Prompt()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Prompt CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PronounsSettings.cs b/src/Microsoft.Graph/Generated/Models/PronounsSettings.cs
index 88e8b8a7d7a..8681ab384c8 100644
--- a/src/Microsoft.Graph/Generated/Models/PronounsSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/PronounsSettings.cs
@@ -25,7 +25,7 @@ public bool? IsEnabledInOrganization
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PronounsSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PronounsSettings();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isEnabledInOrganization", IsEnabledInOrganization);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectedApplicationMetadata.cs b/src/Microsoft.Graph/Generated/Models/ProtectedApplicationMetadata.cs
index a236ac31615..64a54445fcb 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectedApplicationMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectedApplicationMetadata.cs
@@ -42,7 +42,7 @@ public ProtectedApplicationMetadata() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProtectedApplicationMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProtectedApplicationMetadata();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PolicyLocation>("applicationLocation", ApplicationLocation);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectedContent.cs b/src/Microsoft.Graph/Generated/Models/ProtectedContent.cs
index 03b10c5b7ae..c9befbecf9b 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectedContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectedContent.cs
@@ -100,7 +100,7 @@ public ProtectedContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProtectedContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProtectedContent();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("cid", Cid);
             writer.WriteStringValue("format", Format);
             writer.WriteStringValue("labelId", LabelId);
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBase.cs b/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBase.cs
index 47a383fcbb0..bdc6a7a08a5 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBase.cs
@@ -101,7 +101,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProtectionPolicyBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -134,7 +134,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBaseCollectionResponse.cs
index 1f5e1a06bc6..64f4299386f 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectionPolicyBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ProtectionPolicyBaseCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProtectionPolicyBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProtectionPolicyBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectionPolicyBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectionRuleBase.cs b/src/Microsoft.Graph/Generated/Models/ProtectionRuleBase.cs
index 381287d2c59..1a717b4b1c2 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectionRuleBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectionRuleBase.cs
@@ -91,7 +91,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProtectionRuleBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -124,7 +124,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectionUnitBase.cs b/src/Microsoft.Graph/Generated/Models/ProtectionUnitBase.cs
index d11d8f9b0ff..97a56283f41 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectionUnitBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectionUnitBase.cs
@@ -101,7 +101,7 @@ public string PolicyId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProtectionUnitBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -134,7 +134,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectionUnitBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ProtectionUnitBaseCollectionResponse.cs
index a6de90f36f0..03f14995861 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectionUnitBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectionUnitBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ProtectionUnitBaseCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProtectionUnitBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProtectionUnitBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectionUnitBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProtectionUnitsBulkJobBase.cs b/src/Microsoft.Graph/Generated/Models/ProtectionUnitsBulkJobBase.cs
index 4cfa4553345..1183a8fd7cc 100644
--- a/src/Microsoft.Graph/Generated/Models/ProtectionUnitsBulkJobBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProtectionUnitsBulkJobBase.cs
@@ -101,7 +101,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProtectionUnitsBulkJobBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -134,7 +134,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisionChannelEmailResult.cs b/src/Microsoft.Graph/Generated/Models/ProvisionChannelEmailResult.cs
index 3926a0929f6..84cdaa6015c 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisionChannelEmailResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisionChannelEmailResult.cs
@@ -68,7 +68,7 @@ public ProvisionChannelEmailResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProvisionChannelEmailResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisionChannelEmailResult();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("email", Email);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisionedIdentity.cs b/src/Microsoft.Graph/Generated/Models/ProvisionedIdentity.cs
index 195f3ea3fcb..31d3c8d5205 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisionedIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisionedIdentity.cs
@@ -58,7 +58,7 @@ public ProvisionedIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProvisionedIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisionedIdentity();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DetailsInfo>("details", Details);
             writer.WriteStringValue("identityType", IdentityType);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisionedPlan.cs b/src/Microsoft.Graph/Generated/Models/ProvisionedPlan.cs
index 98e90005dac..c62b16cb4dd 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisionedPlan.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisionedPlan.cs
@@ -100,7 +100,7 @@ public ProvisionedPlan()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProvisionedPlan CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisionedPlan();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("capabilityStatus", CapabilityStatus);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("provisioningStatus", ProvisioningStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisioningErrorInfo.cs b/src/Microsoft.Graph/Generated/Models/ProvisioningErrorInfo.cs
index 8845667d435..d6c418c6ec5 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisioningErrorInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisioningErrorInfo.cs
@@ -122,7 +122,7 @@ public ProvisioningErrorInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProvisioningErrorInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisioningErrorInfo();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("additionalDetails", AdditionalDetails);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ProvisioningStatusErrorCategory>("errorCategory", ErrorCategory);
             writer.WriteStringValue("errorCode", ErrorCode);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummary.cs b/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummary.cs
index 22c21501c58..7d395f2d0e9 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummary.cs
@@ -245,7 +245,7 @@ public string TenantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProvisioningObjectSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisioningObjectSummary();
         }
         /// <summary>
@@ -280,7 +280,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("activityDateTime", ActivityDateTime);
             writer.WriteStringValue("changeId", ChangeId);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummaryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummaryCollectionResponse.cs
index 6f434f2e5e9..cfbf22d6be0 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummaryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisioningObjectSummaryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ProvisioningObjectSummaryCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProvisioningObjectSummaryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisioningObjectSummaryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProvisioningObjectSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisioningServicePrincipal.cs b/src/Microsoft.Graph/Generated/Models/ProvisioningServicePrincipal.cs
index 5325a873db8..9634052be48 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisioningServicePrincipal.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisioningServicePrincipal.cs
@@ -26,7 +26,7 @@ public ProvisioningServicePrincipal() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProvisioningServicePrincipal CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisioningServicePrincipal();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisioningStatusInfo.cs b/src/Microsoft.Graph/Generated/Models/ProvisioningStatusInfo.cs
index b5fbba75d6d..05c65e2c4a5 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisioningStatusInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisioningStatusInfo.cs
@@ -74,7 +74,7 @@ public ProvisioningStatusInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProvisioningStatusInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisioningStatusInfo();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ProvisioningErrorInfo>("errorInformation", ErrorInformation);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ProvisioningResult>("status", Status);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisioningStep.cs b/src/Microsoft.Graph/Generated/Models/ProvisioningStep.cs
index 880cf03f9ea..b6dd9bd08d8 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisioningStep.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisioningStep.cs
@@ -112,7 +112,7 @@ public ProvisioningStep()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProvisioningStep CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisioningStep();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DetailsInfo>("details", Details);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/ProvisioningSystem.cs b/src/Microsoft.Graph/Generated/Models/ProvisioningSystem.cs
index 4fc2053db75..c04c2db04e3 100644
--- a/src/Microsoft.Graph/Generated/Models/ProvisioningSystem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProvisioningSystem.cs
@@ -42,7 +42,7 @@ public ProvisioningSystem() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ProvisioningSystem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProvisioningSystem();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DetailsInfo>("details", Details);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ProxiedDomain.cs b/src/Microsoft.Graph/Generated/Models/ProxiedDomain.cs
index e656ed27349..67aa8dfc029 100644
--- a/src/Microsoft.Graph/Generated/Models/ProxiedDomain.cs
+++ b/src/Microsoft.Graph/Generated/Models/ProxiedDomain.cs
@@ -85,7 +85,7 @@ public ProxiedDomain()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ProxiedDomain CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ProxiedDomain();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("ipAddressOrFQDN", IpAddressOrFQDN);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("proxy", Proxy);
diff --git a/src/Microsoft.Graph/Generated/Models/PublicClientApplication.cs b/src/Microsoft.Graph/Generated/Models/PublicClientApplication.cs
index 49bde0d0ec7..06cda957480 100644
--- a/src/Microsoft.Graph/Generated/Models/PublicClientApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/PublicClientApplication.cs
@@ -68,7 +68,7 @@ public PublicClientApplication()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PublicClientApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PublicClientApplication();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("redirectUris", RedirectUris);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/PublicError.cs b/src/Microsoft.Graph/Generated/Models/PublicError.cs
index a75ffb09c90..10047ad4de5 100644
--- a/src/Microsoft.Graph/Generated/Models/PublicError.cs
+++ b/src/Microsoft.Graph/Generated/Models/PublicError.cs
@@ -132,7 +132,7 @@ public PublicError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PublicError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PublicError();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PublicErrorDetail>("details", Details);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicInnerError>("innerError", InnerError);
diff --git a/src/Microsoft.Graph/Generated/Models/PublicErrorDetail.cs b/src/Microsoft.Graph/Generated/Models/PublicErrorDetail.cs
index 4b14094459e..ab891c50a81 100644
--- a/src/Microsoft.Graph/Generated/Models/PublicErrorDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/PublicErrorDetail.cs
@@ -100,7 +100,7 @@ public PublicErrorDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PublicErrorDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PublicErrorDetail();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/PublicInnerError.cs b/src/Microsoft.Graph/Generated/Models/PublicInnerError.cs
index 3ffafc2fe6b..c52cf484b9e 100644
--- a/src/Microsoft.Graph/Generated/Models/PublicInnerError.cs
+++ b/src/Microsoft.Graph/Generated/Models/PublicInnerError.cs
@@ -116,7 +116,7 @@ public PublicInnerError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PublicInnerError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PublicInnerError();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PublicErrorDetail>("details", Details);
             writer.WriteStringValue("message", Message);
diff --git a/src/Microsoft.Graph/Generated/Models/PublicKeyInfrastructureRoot.cs b/src/Microsoft.Graph/Generated/Models/PublicKeyInfrastructureRoot.cs
index b2646c72928..80ef4dcc0f0 100644
--- a/src/Microsoft.Graph/Generated/Models/PublicKeyInfrastructureRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/PublicKeyInfrastructureRoot.cs
@@ -35,7 +35,7 @@ public partial class PublicKeyInfrastructureRoot : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.PublicKeyInfrastructureRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PublicKeyInfrastructureRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CertificateBasedAuthPki>("certificateBasedAuthConfigurations", CertificateBasedAuthConfigurations);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/PublicationFacet.cs b/src/Microsoft.Graph/Generated/Models/PublicationFacet.cs
index 76b4639c577..cf53fca1974 100644
--- a/src/Microsoft.Graph/Generated/Models/PublicationFacet.cs
+++ b/src/Microsoft.Graph/Generated/Models/PublicationFacet.cs
@@ -100,7 +100,7 @@ public PublicationFacet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.PublicationFacet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.PublicationFacet();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("checkedOutBy", CheckedOutBy);
             writer.WriteStringValue("level", Level);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Quota.cs b/src/Microsoft.Graph/Generated/Models/Quota.cs
index e8b73fc9837..d3753232413 100644
--- a/src/Microsoft.Graph/Generated/Models/Quota.cs
+++ b/src/Microsoft.Graph/Generated/Models/Quota.cs
@@ -108,7 +108,7 @@ public Quota()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Quota CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Quota();
         }
         /// <summary>
@@ -134,7 +134,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteLongValue("deleted", Deleted);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("remaining", Remaining);
diff --git a/src/Microsoft.Graph/Generated/Models/RbacApplication.cs b/src/Microsoft.Graph/Generated/Models/RbacApplication.cs
index 5658e397003..867d398ba54 100644
--- a/src/Microsoft.Graph/Generated/Models/RbacApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/RbacApplication.cs
@@ -163,7 +163,7 @@ public partial class RbacApplication : global::Microsoft.Graph.Models.Entity, IP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RbacApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RbacApplication();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace>("resourceNamespaces", ResourceNamespaces);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignment>("roleAssignments", RoleAssignments);
diff --git a/src/Microsoft.Graph/Generated/Models/ReactionsFacet.cs b/src/Microsoft.Graph/Generated/Models/ReactionsFacet.cs
index 69c0de93d40..6c20af2524f 100644
--- a/src/Microsoft.Graph/Generated/Models/ReactionsFacet.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReactionsFacet.cs
@@ -70,7 +70,7 @@ public ReactionsFacet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ReactionsFacet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReactionsFacet();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("commentCount", CommentCount);
             writer.WriteIntValue("likeCount", LikeCount);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmission.cs b/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmission.cs
index 36a7d46d475..ac0dc623852 100644
--- a/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmission.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmission.cs
@@ -205,7 +205,7 @@ public double? WordsPerMinute
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ReadingAssignmentSubmission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReadingAssignmentSubmission();
         }
         /// <summary>
@@ -245,7 +245,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("accuracyScore", AccuracyScore);
             writer.WriteStringValue("action", Action);
diff --git a/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmissionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmissionCollectionResponse.cs
index 2ed328eacd9..fc608d45c4b 100644
--- a/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmissionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReadingAssignmentSubmissionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ReadingAssignmentSubmissionCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ReadingAssignmentSubmissionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReadingAssignmentSubmissionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ReadingAssignmentSubmission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RecentNotebook.cs b/src/Microsoft.Graph/Generated/Models/RecentNotebook.cs
index 01bce925cba..8b42c7a55a0 100644
--- a/src/Microsoft.Graph/Generated/Models/RecentNotebook.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecentNotebook.cs
@@ -96,7 +96,7 @@ public RecentNotebook()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RecentNotebook CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecentNotebook();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("lastAccessedTime", LastAccessedTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RecentNotebookLinks>("links", Links);
diff --git a/src/Microsoft.Graph/Generated/Models/RecentNotebookLinks.cs b/src/Microsoft.Graph/Generated/Models/RecentNotebookLinks.cs
index dd99c70f05c..9180e1800fe 100644
--- a/src/Microsoft.Graph/Generated/Models/RecentNotebookLinks.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecentNotebookLinks.cs
@@ -84,7 +84,7 @@ public RecentNotebookLinks()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RecentNotebookLinks CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecentNotebookLinks();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteClientUrl", OneNoteClientUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteWebUrl", OneNoteWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/Recipient.cs b/src/Microsoft.Graph/Generated/Models/Recipient.cs
index e07e4063b4e..f2e4fff1ac3 100644
--- a/src/Microsoft.Graph/Generated/Models/Recipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/Recipient.cs
@@ -68,7 +68,7 @@ public Recipient()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Recipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -95,7 +95,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailAddress>("emailAddress", EmailAddress);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/RecommendedAction.cs b/src/Microsoft.Graph/Generated/Models/RecommendedAction.cs
index f7429476487..b8b4f9542ea 100644
--- a/src/Microsoft.Graph/Generated/Models/RecommendedAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecommendedAction.cs
@@ -90,7 +90,7 @@ public RecommendedAction()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RecommendedAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecommendedAction();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("actionWebUrl", ActionWebUrl);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDoubleValue("potentialScoreImpact", PotentialScoreImpact);
diff --git a/src/Microsoft.Graph/Generated/Models/RecordOperation.cs b/src/Microsoft.Graph/Generated/Models/RecordOperation.cs
index dda85d41c81..40d765a7967 100644
--- a/src/Microsoft.Graph/Generated/Models/RecordOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecordOperation.cs
@@ -51,7 +51,7 @@ public string RecordingLocation
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RecordOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecordOperation();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("recordingAccessToken", RecordingAccessToken);
             writer.WriteStringValue("recordingLocation", RecordingLocation);
diff --git a/src/Microsoft.Graph/Generated/Models/RecordingInfo.cs b/src/Microsoft.Graph/Generated/Models/RecordingInfo.cs
index d7d7c2abc4e..d7ac26a5eae 100644
--- a/src/Microsoft.Graph/Generated/Models/RecordingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecordingInfo.cs
@@ -74,7 +74,7 @@ public RecordingInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RecordingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecordingInfo();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RecordingStatus>("recordingStatus", RecordingStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/RecurrencePattern.cs b/src/Microsoft.Graph/Generated/Models/RecurrencePattern.cs
index f87b1ce0ef8..d45ba320b99 100644
--- a/src/Microsoft.Graph/Generated/Models/RecurrencePattern.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecurrencePattern.cs
@@ -104,7 +104,7 @@ public RecurrencePattern()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RecurrencePattern CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecurrencePattern();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("dayOfMonth", DayOfMonth);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.DayOfWeekObject>("daysOfWeek", DaysOfWeek);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DayOfWeekObject>("firstDayOfWeek", FirstDayOfWeek);
diff --git a/src/Microsoft.Graph/Generated/Models/RecurrenceRange.cs b/src/Microsoft.Graph/Generated/Models/RecurrenceRange.cs
index 250b1b03ac5..cccd917b648 100644
--- a/src/Microsoft.Graph/Generated/Models/RecurrenceRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecurrenceRange.cs
@@ -93,7 +93,7 @@ public RecurrenceRange()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RecurrenceRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecurrenceRange();
         }
         /// <summary>
@@ -118,7 +118,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateValue("endDate", EndDate);
             writer.WriteIntValue("numberOfOccurrences", NumberOfOccurrences);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/RecycleBin.cs b/src/Microsoft.Graph/Generated/Models/RecycleBin.cs
index c901854a835..5c87d1ffab2 100644
--- a/src/Microsoft.Graph/Generated/Models/RecycleBin.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecycleBin.cs
@@ -58,7 +58,7 @@ public RecycleBin() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RecycleBin CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecycleBin();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecycleBinItem>("items", Items);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RecycleBinSettings>("settings", Settings);
diff --git a/src/Microsoft.Graph/Generated/Models/RecycleBinItem.cs b/src/Microsoft.Graph/Generated/Models/RecycleBinItem.cs
index 9da020d9f76..efa27d622b9 100644
--- a/src/Microsoft.Graph/Generated/Models/RecycleBinItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecycleBinItem.cs
@@ -54,7 +54,7 @@ public RecycleBinItem() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RecycleBinItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecycleBinItem();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("deletedDateTime", DeletedDateTime);
             writer.WriteStringValue("deletedFromLocation", DeletedFromLocation);
diff --git a/src/Microsoft.Graph/Generated/Models/RecycleBinItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RecycleBinItemCollectionResponse.cs
index 43f47a114e5..5854b31bf10 100644
--- a/src/Microsoft.Graph/Generated/Models/RecycleBinItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecycleBinItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RecycleBinItemCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RecycleBinItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecycleBinItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecycleBinItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RecycleBinSettings.cs b/src/Microsoft.Graph/Generated/Models/RecycleBinSettings.cs
index 65e51313bf0..2eb80e0b475 100644
--- a/src/Microsoft.Graph/Generated/Models/RecycleBinSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/RecycleBinSettings.cs
@@ -58,7 +58,7 @@ public RecycleBinSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RecycleBinSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RecycleBinSettings();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("retentionPeriodOverrideDays", RetentionPeriodOverrideDays);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/RedirectUriSettings.cs b/src/Microsoft.Graph/Generated/Models/RedirectUriSettings.cs
index 6dce368ed0b..fbdf8c83b56 100644
--- a/src/Microsoft.Graph/Generated/Models/RedirectUriSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/RedirectUriSettings.cs
@@ -74,7 +74,7 @@ public RedirectUriSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RedirectUriSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RedirectUriSettings();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("index", Index);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("uri", Uri);
diff --git a/src/Microsoft.Graph/Generated/Models/ReferenceAttachment.cs b/src/Microsoft.Graph/Generated/Models/ReferenceAttachment.cs
index d35e8e60630..5775f6f0af0 100644
--- a/src/Microsoft.Graph/Generated/Models/ReferenceAttachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReferenceAttachment.cs
@@ -26,7 +26,7 @@ public ReferenceAttachment() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ReferenceAttachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReferenceAttachment();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ReferenceCreate.cs b/src/Microsoft.Graph/Generated/Models/ReferenceCreate.cs
index 48db3a2eaaa..a4988e36c2b 100644
--- a/src/Microsoft.Graph/Generated/Models/ReferenceCreate.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReferenceCreate.cs
@@ -52,7 +52,7 @@ public ReferenceCreate()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ReferenceCreate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReferenceCreate();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.id", OdataId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ReferenceUpdate.cs b/src/Microsoft.Graph/Generated/Models/ReferenceUpdate.cs
index 9f6f8ec1afe..c66f78533aa 100644
--- a/src/Microsoft.Graph/Generated/Models/ReferenceUpdate.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReferenceUpdate.cs
@@ -68,7 +68,7 @@ public ReferenceUpdate()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ReferenceUpdate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReferenceUpdate();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.id", OdataId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ReferencedObject.cs b/src/Microsoft.Graph/Generated/Models/ReferencedObject.cs
index ba49e0d49b5..27588a3f00b 100644
--- a/src/Microsoft.Graph/Generated/Models/ReferencedObject.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReferencedObject.cs
@@ -84,7 +84,7 @@ public ReferencedObject()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ReferencedObject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReferencedObject();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("referencedObjectName", ReferencedObjectName);
             writer.WriteStringValue("referencedProperty", ReferencedProperty);
diff --git a/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponse.cs b/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponse.cs
index 230b025ee35..74bf893e8dc 100644
--- a/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponse.cs
@@ -129,7 +129,7 @@ public DateTimeOffset? SubmitDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ReflectCheckInResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReflectCheckInResponse();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("checkInId", CheckInId);
             writer.WriteStringValue("checkInTitle", CheckInTitle);
diff --git a/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponseCollectionResponse.cs
index 9ba239989fb..1ed7a00c788 100644
--- a/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReflectCheckInResponseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ReflectCheckInResponseCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ReflectCheckInResponseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReflectCheckInResponseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ReflectCheckInResponse>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RegistrationEnforcement.cs b/src/Microsoft.Graph/Generated/Models/RegistrationEnforcement.cs
index 9e73013fcc0..2d532807f19 100644
--- a/src/Microsoft.Graph/Generated/Models/RegistrationEnforcement.cs
+++ b/src/Microsoft.Graph/Generated/Models/RegistrationEnforcement.cs
@@ -68,7 +68,7 @@ public RegistrationEnforcement()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RegistrationEnforcement CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RegistrationEnforcement();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationMethodsRegistrationCampaign>("authenticationMethodsRegistrationCampaign", AuthenticationMethodsRegistrationCampaign);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/RegistryKeyState.cs b/src/Microsoft.Graph/Generated/Models/RegistryKeyState.cs
index b1efe3ce147..c8117c52532 100644
--- a/src/Microsoft.Graph/Generated/Models/RegistryKeyState.cs
+++ b/src/Microsoft.Graph/Generated/Models/RegistryKeyState.cs
@@ -172,7 +172,7 @@ public RegistryKeyState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RegistryKeyState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RegistryKeyState();
         }
         /// <summary>
@@ -202,7 +202,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RegistryHive>("hive", Hive);
             writer.WriteStringValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/RelatedContact.cs b/src/Microsoft.Graph/Generated/Models/RelatedContact.cs
index 09cfd66fe0e..c44019b42ca 100644
--- a/src/Microsoft.Graph/Generated/Models/RelatedContact.cs
+++ b/src/Microsoft.Graph/Generated/Models/RelatedContact.cs
@@ -112,7 +112,7 @@ public RelatedContact()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RelatedContact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RelatedContact();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("accessConsent", AccessConsent);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("emailAddress", EmailAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/RelyingPartyDetailedSummary.cs b/src/Microsoft.Graph/Generated/Models/RelyingPartyDetailedSummary.cs
index c82598af921..67ddc1798d0 100644
--- a/src/Microsoft.Graph/Generated/Models/RelyingPartyDetailedSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/RelyingPartyDetailedSummary.cs
@@ -135,7 +135,7 @@ public long? UniqueUserCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RelyingPartyDetailedSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RelyingPartyDetailedSummary();
         }
         /// <summary>
@@ -165,7 +165,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteLongValue("failedSignInCount", FailedSignInCount);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MigrationStatus>("migrationStatus", MigrationStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/Reminder.cs b/src/Microsoft.Graph/Generated/Models/Reminder.cs
index 63c152d75da..ebd66f16b7b 100644
--- a/src/Microsoft.Graph/Generated/Models/Reminder.cs
+++ b/src/Microsoft.Graph/Generated/Models/Reminder.cs
@@ -180,7 +180,7 @@ public Reminder()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Reminder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Reminder();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("changeKey", ChangeKey);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("eventEndTime", EventEndTime);
             writer.WriteStringValue("eventId", EventId);
diff --git a/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartner.cs b/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartner.cs
index 8b208f3e907..a9cd31b99ad 100644
--- a/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartner.cs
+++ b/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartner.cs
@@ -64,7 +64,7 @@ public string OnboardingUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RemoteAssistancePartner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RemoteAssistancePartner();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("lastConnectionDateTime", LastConnectionDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartnerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartnerCollectionResponse.cs
index 682ac5046b2..8ef114a9498 100644
--- a/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartnerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RemoteAssistancePartnerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RemoteAssistancePartnerCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RemoteAssistancePartnerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RemoteAssistancePartnerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RemoteAssistancePartner>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RemoteDesktopSecurityConfiguration.cs b/src/Microsoft.Graph/Generated/Models/RemoteDesktopSecurityConfiguration.cs
index c10663fcc13..155cfd2d998 100644
--- a/src/Microsoft.Graph/Generated/Models/RemoteDesktopSecurityConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/RemoteDesktopSecurityConfiguration.cs
@@ -41,7 +41,7 @@ public bool? IsRemoteDesktopProtocolEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RemoteDesktopSecurityConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RemoteDesktopSecurityConfiguration();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isRemoteDesktopProtocolEnabled", IsRemoteDesktopProtocolEnabled);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetDeviceGroup>("targetDeviceGroups", TargetDeviceGroups);
diff --git a/src/Microsoft.Graph/Generated/Models/RemoteItem.cs b/src/Microsoft.Graph/Generated/Models/RemoteItem.cs
index 212e47d1027..d8fce336893 100644
--- a/src/Microsoft.Graph/Generated/Models/RemoteItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/RemoteItem.cs
@@ -326,7 +326,7 @@ public RemoteItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RemoteItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RemoteItem();
         }
         /// <summary>
@@ -365,7 +365,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileObject>("file", File);
diff --git a/src/Microsoft.Graph/Generated/Models/RemoteLockActionResult.cs b/src/Microsoft.Graph/Generated/Models/RemoteLockActionResult.cs
index ec40701e39a..f12fec07f3b 100644
--- a/src/Microsoft.Graph/Generated/Models/RemoteLockActionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/RemoteLockActionResult.cs
@@ -36,7 +36,7 @@ public string UnlockPin
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RemoteLockActionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RemoteLockActionResult();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("unlockPin", UnlockPin);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RemoveAccessApplyAction.cs b/src/Microsoft.Graph/Generated/Models/RemoveAccessApplyAction.cs
index a80babc08af..06f2a879d51 100644
--- a/src/Microsoft.Graph/Generated/Models/RemoveAccessApplyAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/RemoveAccessApplyAction.cs
@@ -26,7 +26,7 @@ public RemoveAccessApplyAction() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RemoveAccessApplyAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RemoveAccessApplyAction();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/RemovedState.cs b/src/Microsoft.Graph/Generated/Models/RemovedState.cs
index e194d6d3cf3..62a401a3ba4 100644
--- a/src/Microsoft.Graph/Generated/Models/RemovedState.cs
+++ b/src/Microsoft.Graph/Generated/Models/RemovedState.cs
@@ -68,7 +68,7 @@ public RemovedState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RemovedState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RemovedState();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("reason", Reason);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Report.cs b/src/Microsoft.Graph/Generated/Models/Report.cs
index 46b6d8399d7..e2c0a797227 100644
--- a/src/Microsoft.Graph/Generated/Models/Report.cs
+++ b/src/Microsoft.Graph/Generated/Models/Report.cs
@@ -69,7 +69,7 @@ public Report()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Report CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Report();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("content", Content);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ReportRoot.cs b/src/Microsoft.Graph/Generated/Models/ReportRoot.cs
index f08eb3c4a17..bad7c5d8a57 100644
--- a/src/Microsoft.Graph/Generated/Models/ReportRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReportRoot.cs
@@ -165,7 +165,7 @@ public ReportRoot()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ReportRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReportRoot();
         }
         /// <summary>
@@ -192,7 +192,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationMethodsRoot>("authenticationMethods", AuthenticationMethods);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintUsageByPrinter>("dailyPrintUsageByPrinter", DailyPrintUsageByPrinter);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrintUsageByUser>("dailyPrintUsageByUser", DailyPrintUsageByUser);
diff --git a/src/Microsoft.Graph/Generated/Models/ReportsRoot.cs b/src/Microsoft.Graph/Generated/Models/ReportsRoot.cs
index dd7c0b5749f..bb865e3e166 100644
--- a/src/Microsoft.Graph/Generated/Models/ReportsRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/ReportsRoot.cs
@@ -51,7 +51,7 @@ public partial class ReportsRoot : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ReportsRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ReportsRoot();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ReadingAssignmentSubmission>("readingAssignmentSubmissions", ReadingAssignmentSubmissions);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ReflectCheckInResponse>("reflectCheckInResponses", ReflectCheckInResponses);
diff --git a/src/Microsoft.Graph/Generated/Models/Request.cs b/src/Microsoft.Graph/Generated/Models/Request.cs
index 1552db0ccdd..77e65c158a7 100644
--- a/src/Microsoft.Graph/Generated/Models/Request.cs
+++ b/src/Microsoft.Graph/Generated/Models/Request.cs
@@ -95,7 +95,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Request CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("approvalId", ApprovalId);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/RequestSchedule.cs b/src/Microsoft.Graph/Generated/Models/RequestSchedule.cs
index 64bb017be39..6d7c5196bc7 100644
--- a/src/Microsoft.Graph/Generated/Models/RequestSchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/RequestSchedule.cs
@@ -90,7 +90,7 @@ public RequestSchedule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RequestSchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RequestSchedule();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExpirationPattern>("expiration", Expiration);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PatternedRecurrence>("recurrence", Recurrence);
diff --git a/src/Microsoft.Graph/Generated/Models/RequestSignatureVerification.cs b/src/Microsoft.Graph/Generated/Models/RequestSignatureVerification.cs
index a3cf96ba92c..4c552209809 100644
--- a/src/Microsoft.Graph/Generated/Models/RequestSignatureVerification.cs
+++ b/src/Microsoft.Graph/Generated/Models/RequestSignatureVerification.cs
@@ -64,7 +64,7 @@ public RequestSignatureVerification()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RequestSignatureVerification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RequestSignatureVerification();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WeakAlgorithms>("allowedWeakAlgorithms", AllowedWeakAlgorithms);
             writer.WriteBoolValue("isSignedRequestRequired", IsSignedRequestRequired);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/RequestorManager.cs b/src/Microsoft.Graph/Generated/Models/RequestorManager.cs
index d6f16aea761..a8e533434f1 100644
--- a/src/Microsoft.Graph/Generated/Models/RequestorManager.cs
+++ b/src/Microsoft.Graph/Generated/Models/RequestorManager.cs
@@ -32,7 +32,7 @@ public RequestorManager() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RequestorManager CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RequestorManager();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("managerLevel", ManagerLevel);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RequiredResourceAccess.cs b/src/Microsoft.Graph/Generated/Models/RequiredResourceAccess.cs
index a96bf271207..0fa878979ee 100644
--- a/src/Microsoft.Graph/Generated/Models/RequiredResourceAccess.cs
+++ b/src/Microsoft.Graph/Generated/Models/RequiredResourceAccess.cs
@@ -84,7 +84,7 @@ public RequiredResourceAccess()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RequiredResourceAccess CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RequiredResourceAccess();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ResourceAccess>("resourceAccess", ResourceAccess);
             writer.WriteStringValue("resourceAppId", ResourceAppId);
diff --git a/src/Microsoft.Graph/Generated/Models/ResellerDelegatedAdminRelationship.cs b/src/Microsoft.Graph/Generated/Models/ResellerDelegatedAdminRelationship.cs
index dbb73991770..7186654c097 100644
--- a/src/Microsoft.Graph/Generated/Models/ResellerDelegatedAdminRelationship.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResellerDelegatedAdminRelationship.cs
@@ -41,7 +41,7 @@ public bool? IsPartnerConsentPending
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ResellerDelegatedAdminRelationship CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResellerDelegatedAdminRelationship();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("indirectProviderTenantId", IndirectProviderTenantId);
             writer.WriteBoolValue("isPartnerConsentPending", IsPartnerConsentPending);
diff --git a/src/Microsoft.Graph/Generated/Models/ResetPasscodeActionResult.cs b/src/Microsoft.Graph/Generated/Models/ResetPasscodeActionResult.cs
index 9133c9a7651..039764d406c 100644
--- a/src/Microsoft.Graph/Generated/Models/ResetPasscodeActionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResetPasscodeActionResult.cs
@@ -42,7 +42,7 @@ public string Passcode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ResetPasscodeActionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResetPasscodeActionResult();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("errorCode", ErrorCode);
             writer.WriteStringValue("passcode", Passcode);
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceAccess.cs b/src/Microsoft.Graph/Generated/Models/ResourceAccess.cs
index 00563bcbdb0..9e556088580 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceAccess.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceAccess.cs
@@ -74,7 +74,7 @@ public ResourceAccess()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResourceAccess CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceAccess();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteGuidValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceAction.cs b/src/Microsoft.Graph/Generated/Models/ResourceAction.cs
index c1c072feecc..217f0bfa2eb 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceAction.cs
@@ -85,7 +85,7 @@ public ResourceAction()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResourceAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceAction();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("allowedResourceActions", AllowedResourceActions);
             writer.WriteCollectionOfPrimitiveValues<string>("notAllowedResourceActions", NotAllowedResourceActions);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceOperation.cs b/src/Microsoft.Graph/Generated/Models/ResourceOperation.cs
index fb246424a64..b909e2234e4 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceOperation.cs
@@ -68,7 +68,7 @@ public string ResourceName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ResourceOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceOperation();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("actionName", ActionName);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ResourceOperationCollectionResponse.cs
index 4431ff2a35d..cf65bc2d168 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ResourceOperationCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ResourceOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ResourceOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceReference.cs b/src/Microsoft.Graph/Generated/Models/ResourceReference.cs
index e8f4207c887..5965434d133 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceReference.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceReference.cs
@@ -100,7 +100,7 @@ public ResourceReference()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResourceReference CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceReference();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermission.cs b/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermission.cs
index e93954a9000..1ed1fad937b 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermission.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermission.cs
@@ -112,7 +112,7 @@ public ResourceSpecificPermission()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResourceSpecificPermission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceSpecificPermission();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteGuidValue("id", Id);
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrant.cs b/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrant.cs
index dfe3b7757fe..ddfd1a70652 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrant.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrant.cs
@@ -106,7 +106,7 @@ public ResourceSpecificPermissionGrant() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("clientAppId", ClientAppId);
             writer.WriteStringValue("clientId", ClientId);
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrantCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrantCollectionResponse.cs
index dcfa9d3ec05..6f959d9a17d 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrantCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceSpecificPermissionGrantCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ResourceSpecificPermissionGrantCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ResourceSpecificPermissionGrantCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceSpecificPermissionGrantCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ResourceVisualization.cs b/src/Microsoft.Graph/Generated/Models/ResourceVisualization.cs
index 227a0ac49dd..95f34efebff 100644
--- a/src/Microsoft.Graph/Generated/Models/ResourceVisualization.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResourceVisualization.cs
@@ -180,7 +180,7 @@ public ResourceVisualization()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResourceVisualization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResourceVisualization();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("containerDisplayName", ContainerDisplayName);
             writer.WriteStringValue("containerType", ContainerType);
             writer.WriteStringValue("containerWebUrl", ContainerWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/ResponseStatus.cs b/src/Microsoft.Graph/Generated/Models/ResponseStatus.cs
index ea1b3bb3523..3f21783fb14 100644
--- a/src/Microsoft.Graph/Generated/Models/ResponseStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResponseStatus.cs
@@ -64,7 +64,7 @@ public ResponseStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResponseStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResponseStatus();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ResponseType>("response", Response);
             writer.WriteDateTimeOffsetValue("time", Time);
diff --git a/src/Microsoft.Graph/Generated/Models/RestoreArtifactBase.cs b/src/Microsoft.Graph/Generated/Models/RestoreArtifactBase.cs
index a367e34f16f..45eb1a635aa 100644
--- a/src/Microsoft.Graph/Generated/Models/RestoreArtifactBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestoreArtifactBase.cs
@@ -75,7 +75,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestoreArtifactBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -108,7 +108,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completionDateTime", CompletionDateTime);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DestinationType>("destinationType", DestinationType);
diff --git a/src/Microsoft.Graph/Generated/Models/RestoreArtifactsBulkRequestBase.cs b/src/Microsoft.Graph/Generated/Models/RestoreArtifactsBulkRequestBase.cs
index b592966ac79..3911a3beb4b 100644
--- a/src/Microsoft.Graph/Generated/Models/RestoreArtifactsBulkRequestBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestoreArtifactsBulkRequestBase.cs
@@ -151,7 +151,7 @@ public List<string> ProtectionUnitIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestoreArtifactsBulkRequestBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -189,7 +189,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/RestorePoint.cs b/src/Microsoft.Graph/Generated/Models/RestorePoint.cs
index 72f92fc83b0..6461a3da35a 100644
--- a/src/Microsoft.Graph/Generated/Models/RestorePoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestorePoint.cs
@@ -53,7 +53,7 @@ public DateTimeOffset? ProtectionDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestorePoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RestorePoint();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteDateTimeOffsetValue("protectionDateTime", ProtectionDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/RestorePointCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RestorePointCollectionResponse.cs
index 73cccaa6663..d400e2abf37 100644
--- a/src/Microsoft.Graph/Generated/Models/RestorePointCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestorePointCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RestorePointCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestorePointCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RestorePointCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RestorePoint>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RestorePointSearchResponse.cs b/src/Microsoft.Graph/Generated/Models/RestorePointSearchResponse.cs
index a2c6f36e772..b58851ae5b3 100644
--- a/src/Microsoft.Graph/Generated/Models/RestorePointSearchResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestorePointSearchResponse.cs
@@ -100,7 +100,7 @@ public RestorePointSearchResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RestorePointSearchResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RestorePointSearchResponse();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("noResultProtectionUnitIds", NoResultProtectionUnitIds);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("searchResponseId", SearchResponseId);
diff --git a/src/Microsoft.Graph/Generated/Models/RestorePointSearchResult.cs b/src/Microsoft.Graph/Generated/Models/RestorePointSearchResult.cs
index c9524ced081..81790f85d52 100644
--- a/src/Microsoft.Graph/Generated/Models/RestorePointSearchResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestorePointSearchResult.cs
@@ -74,7 +74,7 @@ public RestorePointSearchResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RestorePointSearchResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RestorePointSearchResult();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("artifactHitCount", ArtifactHitCount);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RestorePoint>("restorePoint", RestorePoint);
diff --git a/src/Microsoft.Graph/Generated/Models/RestoreSessionArtifactCount.cs b/src/Microsoft.Graph/Generated/Models/RestoreSessionArtifactCount.cs
index 067c0838d4c..a830531ccc5 100644
--- a/src/Microsoft.Graph/Generated/Models/RestoreSessionArtifactCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestoreSessionArtifactCount.cs
@@ -76,7 +76,7 @@ public RestoreSessionArtifactCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RestoreSessionArtifactCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RestoreSessionArtifactCount();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("completed", Completed);
             writer.WriteIntValue("failed", Failed);
             writer.WriteIntValue("inProgress", InProgress);
diff --git a/src/Microsoft.Graph/Generated/Models/RestoreSessionBase.cs b/src/Microsoft.Graph/Generated/Models/RestoreSessionBase.cs
index bb0e4fd5d00..a62e9c06ee8 100644
--- a/src/Microsoft.Graph/Generated/Models/RestoreSessionBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestoreSessionBase.cs
@@ -113,7 +113,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestoreSessionBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -148,7 +148,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/RestoreSessionBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RestoreSessionBaseCollectionResponse.cs
index 4e2b8b438ce..e1f3e043439 100644
--- a/src/Microsoft.Graph/Generated/Models/RestoreSessionBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestoreSessionBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RestoreSessionBaseCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestoreSessionBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RestoreSessionBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RestoreSessionBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RestrictAccessAction.cs b/src/Microsoft.Graph/Generated/Models/RestrictAccessAction.cs
index da1cbaca2f5..e0c5e6cd6d3 100644
--- a/src/Microsoft.Graph/Generated/Models/RestrictAccessAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestrictAccessAction.cs
@@ -26,7 +26,7 @@ public RestrictAccessAction() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestrictAccessAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RestrictAccessAction();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/RestrictAccessActionBase.cs b/src/Microsoft.Graph/Generated/Models/RestrictAccessActionBase.cs
index a100ac4ffec..ba76c54dda2 100644
--- a/src/Microsoft.Graph/Generated/Models/RestrictAccessActionBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/RestrictAccessActionBase.cs
@@ -25,7 +25,7 @@ public partial class RestrictAccessActionBase : global::Microsoft.Graph.Models.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RestrictAccessActionBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -50,7 +50,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RestrictionAction>("restrictionAction", RestrictionAction);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ResultInfo.cs b/src/Microsoft.Graph/Generated/Models/ResultInfo.cs
index ca7e5a8db0d..eeb21801230 100644
--- a/src/Microsoft.Graph/Generated/Models/ResultInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResultInfo.cs
@@ -80,7 +80,7 @@ public ResultInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResultInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResultInfo();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ResultTemplateDictionary.cs b/src/Microsoft.Graph/Generated/Models/ResultTemplateDictionary.cs
index d62df1cd334..88f4c626960 100644
--- a/src/Microsoft.Graph/Generated/Models/ResultTemplateDictionary.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResultTemplateDictionary.cs
@@ -19,7 +19,7 @@ public partial class ResultTemplateDictionary : global::Microsoft.Graph.Models.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ResultTemplateDictionary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResultTemplateDictionary();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ResultTemplateOption.cs b/src/Microsoft.Graph/Generated/Models/ResultTemplateOption.cs
index 4d9735711c6..904ccdd35aa 100644
--- a/src/Microsoft.Graph/Generated/Models/ResultTemplateOption.cs
+++ b/src/Microsoft.Graph/Generated/Models/ResultTemplateOption.cs
@@ -58,7 +58,7 @@ public ResultTemplateOption()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ResultTemplateOption CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ResultTemplateOption();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("enableResultTemplate", EnableResultTemplate);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/RetentionLabelSettings.cs b/src/Microsoft.Graph/Generated/Models/RetentionLabelSettings.cs
index bc9f843bab9..a06b15560b5 100644
--- a/src/Microsoft.Graph/Generated/Models/RetentionLabelSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/RetentionLabelSettings.cs
@@ -89,7 +89,7 @@ public RetentionLabelSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RetentionLabelSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RetentionLabelSettings();
         }
         /// <summary>
@@ -115,7 +115,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.BehaviorDuringRetentionPeriod>("behaviorDuringRetentionPeriod", BehaviorDuringRetentionPeriod);
             writer.WriteBoolValue("isContentUpdateAllowed", IsContentUpdateAllowed);
             writer.WriteBoolValue("isDeleteAllowed", IsDeleteAllowed);
diff --git a/src/Microsoft.Graph/Generated/Models/RetentionSetting.cs b/src/Microsoft.Graph/Generated/Models/RetentionSetting.cs
index 04e558951e4..ef1eb133119 100644
--- a/src/Microsoft.Graph/Generated/Models/RetentionSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/RetentionSetting.cs
@@ -74,7 +74,7 @@ public RetentionSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RetentionSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RetentionSetting();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("interval", Interval);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteTimeSpanValue("period", Period);
diff --git a/src/Microsoft.Graph/Generated/Models/RgbColor.cs b/src/Microsoft.Graph/Generated/Models/RgbColor.cs
index b0e9d7d03b2..f1f1df90d4b 100644
--- a/src/Microsoft.Graph/Generated/Models/RgbColor.cs
+++ b/src/Microsoft.Graph/Generated/Models/RgbColor.cs
@@ -71,7 +71,7 @@ public RgbColor()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RgbColor CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RgbColor();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteValue("b", B);
             writer.WriteByteValue("g", G);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/RichLongRunningOperation.cs b/src/Microsoft.Graph/Generated/Models/RichLongRunningOperation.cs
index 13901769e1f..f846ff72d77 100644
--- a/src/Microsoft.Graph/Generated/Models/RichLongRunningOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/RichLongRunningOperation.cs
@@ -74,7 +74,7 @@ public string Type
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RichLongRunningOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RichLongRunningOperation();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
             writer.WriteIntValue("percentageComplete", PercentageComplete);
diff --git a/src/Microsoft.Graph/Generated/Models/RichLongRunningOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RichLongRunningOperationCollectionResponse.cs
index f7f68f3db02..1ed3df2e8e4 100644
--- a/src/Microsoft.Graph/Generated/Models/RichLongRunningOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RichLongRunningOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RichLongRunningOperationCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RichLongRunningOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RichLongRunningOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RichLongRunningOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RiskDetection.cs b/src/Microsoft.Graph/Generated/Models/RiskDetection.cs
index fae67ebc64e..af6c5fe0cf9 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskDetection.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskDetection.cs
@@ -233,7 +233,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskDetection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskDetection();
         }
         /// <summary>
@@ -271,7 +271,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ActivityType>("activity", Activity);
             writer.WriteDateTimeOffsetValue("activityDateTime", ActivityDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/RiskDetectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RiskDetectionCollectionResponse.cs
index 0afaec9f086..2e9a0a53cee 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskDetectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskDetectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RiskDetectionCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskDetectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskDetectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskDetection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RiskServicePrincipalActivity.cs b/src/Microsoft.Graph/Generated/Models/RiskServicePrincipalActivity.cs
index a64aa825ee4..d1e856d8e8b 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskServicePrincipalActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskServicePrincipalActivity.cs
@@ -74,7 +74,7 @@ public RiskServicePrincipalActivity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RiskServicePrincipalActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskServicePrincipalActivity();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RiskDetail>("detail", Detail);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("riskEventTypes", RiskEventTypes);
diff --git a/src/Microsoft.Graph/Generated/Models/RiskUserActivity.cs b/src/Microsoft.Graph/Generated/Models/RiskUserActivity.cs
index 6ce504437ec..6731c5dcbbe 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskUserActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskUserActivity.cs
@@ -74,7 +74,7 @@ public RiskUserActivity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RiskUserActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskUserActivity();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RiskDetail>("detail", Detail);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("riskEventTypes", RiskEventTypes);
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipal.cs b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipal.cs
index ccb84c7d364..b060d7f3b46 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipal.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipal.cs
@@ -119,7 +119,7 @@ public string ServicePrincipalType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyServicePrincipal CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -153,7 +153,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appId", AppId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalCollectionResponse.cs
index 1192b10b6f4..c80ce499c0f 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RiskyServicePrincipalCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyServicePrincipalCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskyServicePrincipalCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskyServicePrincipal>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItem.cs b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItem.cs
index 15c3dd13333..0ce84f4c69c 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItem.cs
@@ -51,7 +51,7 @@ public string InitiatedBy
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RiskServicePrincipalActivity>("activity", Activity);
             writer.WriteStringValue("initiatedBy", InitiatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItemCollectionResponse.cs
index 18fc627d576..997599ece5e 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyServicePrincipalHistoryItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RiskyServicePrincipalHistoryItemCollectionResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskyServicePrincipalHistoryItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyUser.cs b/src/Microsoft.Graph/Generated/Models/RiskyUser.cs
index b2ea1562cd9..c563acd31a9 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyUser.cs
@@ -103,7 +103,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -136,7 +136,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskyUserHistoryItem>("history", History);
             writer.WriteBoolValue("isDeleted", IsDeleted);
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyUserCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RiskyUserCollectionResponse.cs
index 0fa83c67adf..ed69229801a 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyUserCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyUserCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RiskyUserCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyUserCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskyUserCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskyUser>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItem.cs b/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItem.cs
index a2b69a3c87f..fd1ecd08848 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItem.cs
@@ -67,7 +67,7 @@ public string UserId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyUserHistoryItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskyUserHistoryItem();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RiskUserActivity>("activity", Activity);
             writer.WriteStringValue("initiatedBy", InitiatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItemCollectionResponse.cs
index b45cedcf67e..40e1803d505 100644
--- a/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RiskyUserHistoryItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RiskyUserHistoryItemCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RiskyUserHistoryItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RiskyUserHistoryItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RiskyUserHistoryItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RoleAssignment.cs b/src/Microsoft.Graph/Generated/Models/RoleAssignment.cs
index 7f3053cb76b..86288e200ab 100644
--- a/src/Microsoft.Graph/Generated/Models/RoleAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoleAssignment.cs
@@ -84,7 +84,7 @@ public List<string> ResourceScopes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RoleAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -112,7 +112,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/RoleAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RoleAssignmentCollectionResponse.cs
index 209b413d14f..53f466e48ca 100644
--- a/src/Microsoft.Graph/Generated/Models/RoleAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoleAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RoleAssignmentCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RoleAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RoleAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RoleAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RoleDefinition.cs b/src/Microsoft.Graph/Generated/Models/RoleDefinition.cs
index cfc7f73ff3c..2fced827f7e 100644
--- a/src/Microsoft.Graph/Generated/Models/RoleDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoleDefinition.cs
@@ -90,7 +90,7 @@ public bool? IsBuiltIn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RoleDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -119,7 +119,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/RoleDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RoleDefinitionCollectionResponse.cs
index 1daf4e18462..27b2ed0a648 100644
--- a/src/Microsoft.Graph/Generated/Models/RoleDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoleDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RoleDefinitionCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RoleDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RoleDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RoleDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RoleManagement.cs b/src/Microsoft.Graph/Generated/Models/RoleManagement.cs
index 6efde7f1d11..20a94a56adb 100644
--- a/src/Microsoft.Graph/Generated/Models/RoleManagement.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoleManagement.cs
@@ -84,7 +84,7 @@ public RoleManagement()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RoleManagement CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RoleManagement();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RbacApplication>("directory", Directory);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RbacApplication>("entitlementManagement", EntitlementManagement);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/RolePermission.cs b/src/Microsoft.Graph/Generated/Models/RolePermission.cs
index 63c0bd22dfd..c94d9baf0eb 100644
--- a/src/Microsoft.Graph/Generated/Models/RolePermission.cs
+++ b/src/Microsoft.Graph/Generated/Models/RolePermission.cs
@@ -69,7 +69,7 @@ public RolePermission()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RolePermission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RolePermission();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ResourceAction>("resourceActions", ResourceActions);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Room.cs b/src/Microsoft.Graph/Generated/Models/Room.cs
index 8003d2e29ed..c90ef2cff73 100644
--- a/src/Microsoft.Graph/Generated/Models/Room.cs
+++ b/src/Microsoft.Graph/Generated/Models/Room.cs
@@ -194,7 +194,7 @@ public Room() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Room CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Room();
         }
         /// <summary>
@@ -226,7 +226,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("audioDeviceName", AudioDeviceName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BookingType>("bookingType", BookingType);
diff --git a/src/Microsoft.Graph/Generated/Models/RoomCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RoomCollectionResponse.cs
index 840ca4467d2..47e60bd16d4 100644
--- a/src/Microsoft.Graph/Generated/Models/RoomCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoomCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RoomCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RoomCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RoomCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Room>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RoomList.cs b/src/Microsoft.Graph/Generated/Models/RoomList.cs
index 1a358b09a5c..6032dc6b3c3 100644
--- a/src/Microsoft.Graph/Generated/Models/RoomList.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoomList.cs
@@ -58,7 +58,7 @@ public RoomList() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RoomList CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RoomList();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("emailAddress", EmailAddress);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Room>("rooms", Rooms);
diff --git a/src/Microsoft.Graph/Generated/Models/RoomListCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/RoomListCollectionResponse.cs
index 5d128c9c811..ac536e306f4 100644
--- a/src/Microsoft.Graph/Generated/Models/RoomListCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/RoomListCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RoomListCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RoomListCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RoomListCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RoomList>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Root.cs b/src/Microsoft.Graph/Generated/Models/Root.cs
index b3e690de3b8..b0b78dde978 100644
--- a/src/Microsoft.Graph/Generated/Models/Root.cs
+++ b/src/Microsoft.Graph/Generated/Models/Root.cs
@@ -52,7 +52,7 @@ public Root()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Root CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Root();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RotateBitLockerKeysDeviceActionResult.cs b/src/Microsoft.Graph/Generated/Models/RotateBitLockerKeysDeviceActionResult.cs
index eecfb8c670d..acf0fa4179b 100644
--- a/src/Microsoft.Graph/Generated/Models/RotateBitLockerKeysDeviceActionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/RotateBitLockerKeysDeviceActionResult.cs
@@ -26,7 +26,7 @@ public int? ErrorCode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.RotateBitLockerKeysDeviceActionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RotateBitLockerKeysDeviceActionResult();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("errorCode", ErrorCode);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/RubricCriterion.cs b/src/Microsoft.Graph/Generated/Models/RubricCriterion.cs
index 1209a324f09..415dfe25ec9 100644
--- a/src/Microsoft.Graph/Generated/Models/RubricCriterion.cs
+++ b/src/Microsoft.Graph/Generated/Models/RubricCriterion.cs
@@ -68,7 +68,7 @@ public RubricCriterion()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RubricCriterion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RubricCriterion();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationItemBody>("description", Description);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/RubricLevel.cs b/src/Microsoft.Graph/Generated/Models/RubricLevel.cs
index 4701bcd0a7b..a85bb1f7eb7 100644
--- a/src/Microsoft.Graph/Generated/Models/RubricLevel.cs
+++ b/src/Microsoft.Graph/Generated/Models/RubricLevel.cs
@@ -116,7 +116,7 @@ public RubricLevel()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RubricLevel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RubricLevel();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationItemBody>("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationAssignmentGradeType>("grading", Grading);
diff --git a/src/Microsoft.Graph/Generated/Models/RubricQuality.cs b/src/Microsoft.Graph/Generated/Models/RubricQuality.cs
index e12012efe4f..ee2fb15e1f6 100644
--- a/src/Microsoft.Graph/Generated/Models/RubricQuality.cs
+++ b/src/Microsoft.Graph/Generated/Models/RubricQuality.cs
@@ -122,7 +122,7 @@ public RubricQuality()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RubricQuality CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RubricQuality();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RubricCriterion>("criteria", Criteria);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationItemBody>("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/RubricQualityFeedbackModel.cs b/src/Microsoft.Graph/Generated/Models/RubricQualityFeedbackModel.cs
index 7c126619909..c57210f78d1 100644
--- a/src/Microsoft.Graph/Generated/Models/RubricQualityFeedbackModel.cs
+++ b/src/Microsoft.Graph/Generated/Models/RubricQualityFeedbackModel.cs
@@ -84,7 +84,7 @@ public RubricQualityFeedbackModel()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RubricQualityFeedbackModel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RubricQualityFeedbackModel();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EducationItemBody>("feedback", Feedback);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("qualityId", QualityId);
diff --git a/src/Microsoft.Graph/Generated/Models/RubricQualitySelectedColumnModel.cs b/src/Microsoft.Graph/Generated/Models/RubricQualitySelectedColumnModel.cs
index 3751e92d843..546f44f53f2 100644
--- a/src/Microsoft.Graph/Generated/Models/RubricQualitySelectedColumnModel.cs
+++ b/src/Microsoft.Graph/Generated/Models/RubricQualitySelectedColumnModel.cs
@@ -84,7 +84,7 @@ public RubricQualitySelectedColumnModel()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.RubricQualitySelectedColumnModel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.RubricQualitySelectedColumnModel();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("columnId", ColumnId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("qualityId", QualityId);
diff --git a/src/Microsoft.Graph/Generated/Models/SamlOrWsFedExternalDomainFederation.cs b/src/Microsoft.Graph/Generated/Models/SamlOrWsFedExternalDomainFederation.cs
index b5c86b7d54b..561ca78f377 100644
--- a/src/Microsoft.Graph/Generated/Models/SamlOrWsFedExternalDomainFederation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SamlOrWsFedExternalDomainFederation.cs
@@ -42,7 +42,7 @@ public SamlOrWsFedExternalDomainFederation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SamlOrWsFedExternalDomainFederation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SamlOrWsFedExternalDomainFederation();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExternalDomainName>("domains", Domains);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SamlOrWsFedProvider.cs b/src/Microsoft.Graph/Generated/Models/SamlOrWsFedProvider.cs
index 2ab3b3673db..80af3936b96 100644
--- a/src/Microsoft.Graph/Generated/Models/SamlOrWsFedProvider.cs
+++ b/src/Microsoft.Graph/Generated/Models/SamlOrWsFedProvider.cs
@@ -96,7 +96,7 @@ public SamlOrWsFedProvider() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SamlOrWsFedProvider CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -126,7 +126,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("issuerUri", IssuerUri);
             writer.WriteStringValue("metadataExchangeUri", MetadataExchangeUri);
diff --git a/src/Microsoft.Graph/Generated/Models/SamlSingleSignOnSettings.cs b/src/Microsoft.Graph/Generated/Models/SamlSingleSignOnSettings.cs
index 7ebd680af4b..aaea58256a1 100644
--- a/src/Microsoft.Graph/Generated/Models/SamlSingleSignOnSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/SamlSingleSignOnSettings.cs
@@ -68,7 +68,7 @@ public SamlSingleSignOnSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SamlSingleSignOnSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SamlSingleSignOnSettings();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("relayState", RelayState);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Schedule.cs b/src/Microsoft.Graph/Generated/Models/Schedule.cs
index 7ead0bbc848..4d818778c67 100644
--- a/src/Microsoft.Graph/Generated/Models/Schedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/Schedule.cs
@@ -313,7 +313,7 @@ public List<string> WorkforceIntegrationIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Schedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Schedule();
         }
         /// <summary>
@@ -356,7 +356,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DayNote>("dayNotes", DayNotes);
             writer.WriteBoolValue("enabled", Enabled);
diff --git a/src/Microsoft.Graph/Generated/Models/ScheduleChangeRequest.cs b/src/Microsoft.Graph/Generated/Models/ScheduleChangeRequest.cs
index 545dfeeae76..cbddfa2aff2 100644
--- a/src/Microsoft.Graph/Generated/Models/ScheduleChangeRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScheduleChangeRequest.cs
@@ -114,7 +114,7 @@ public ScheduleChangeRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ScheduleChangeRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -149,7 +149,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ScheduleChangeRequestActor>("assignedTo", AssignedTo);
             writer.WriteStringValue("managerActionMessage", ManagerActionMessage);
diff --git a/src/Microsoft.Graph/Generated/Models/ScheduleEntity.cs b/src/Microsoft.Graph/Generated/Models/ScheduleEntity.cs
index 0fbb802e6ed..71d030a8329 100644
--- a/src/Microsoft.Graph/Generated/Models/ScheduleEntity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScheduleEntity.cs
@@ -70,7 +70,7 @@ public ScheduleEntity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ScheduleEntity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ScheduleInformation.cs b/src/Microsoft.Graph/Generated/Models/ScheduleInformation.cs
index 35fed4723e7..d25ad9f5b96 100644
--- a/src/Microsoft.Graph/Generated/Models/ScheduleInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScheduleInformation.cs
@@ -132,7 +132,7 @@ public ScheduleInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ScheduleInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ScheduleInformation();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("availabilityView", AvailabilityView);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FreeBusyError>("error", Error);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ScheduleItem.cs b/src/Microsoft.Graph/Generated/Models/ScheduleItem.cs
index 4abf0314bbc..8f03917904c 100644
--- a/src/Microsoft.Graph/Generated/Models/ScheduleItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScheduleItem.cs
@@ -128,7 +128,7 @@ public ScheduleItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ScheduleItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ScheduleItem();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("end", End);
             writer.WriteBoolValue("isPrivate", IsPrivate);
             writer.WriteStringValue("location", Location);
diff --git a/src/Microsoft.Graph/Generated/Models/SchedulingGroup.cs b/src/Microsoft.Graph/Generated/Models/SchedulingGroup.cs
index 7b617f92094..956ea6146cd 100644
--- a/src/Microsoft.Graph/Generated/Models/SchedulingGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/SchedulingGroup.cs
@@ -80,7 +80,7 @@ public SchedulingGroup() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SchedulingGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SchedulingGroup();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/SchedulingGroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SchedulingGroupCollectionResponse.cs
index 882c13a6514..8959c0874f2 100644
--- a/src/Microsoft.Graph/Generated/Models/SchedulingGroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SchedulingGroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SchedulingGroupCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SchedulingGroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SchedulingGroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SchedulingGroup>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SchemaExtension.cs b/src/Microsoft.Graph/Generated/Models/SchemaExtension.cs
index e2b27bf2982..9e297596db9 100644
--- a/src/Microsoft.Graph/Generated/Models/SchemaExtension.cs
+++ b/src/Microsoft.Graph/Generated/Models/SchemaExtension.cs
@@ -99,7 +99,7 @@ public List<string> TargetTypes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SchemaExtension CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SchemaExtension();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("owner", Owner);
diff --git a/src/Microsoft.Graph/Generated/Models/SchemaExtensionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SchemaExtensionCollectionResponse.cs
index 55f14b23d54..91286097a64 100644
--- a/src/Microsoft.Graph/Generated/Models/SchemaExtensionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SchemaExtensionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SchemaExtensionCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SchemaExtensionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SchemaExtensionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SchemaExtension>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ScopeBase.cs b/src/Microsoft.Graph/Generated/Models/ScopeBase.cs
index 01adb4cd94e..aa9b2fc6a04 100644
--- a/src/Microsoft.Graph/Generated/Models/ScopeBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScopeBase.cs
@@ -68,7 +68,7 @@ public ScopeBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ScopeBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("identity", Identity);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/ScopedRoleMembership.cs b/src/Microsoft.Graph/Generated/Models/ScopedRoleMembership.cs
index a234765230d..fb85bd3d582 100644
--- a/src/Microsoft.Graph/Generated/Models/ScopedRoleMembership.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScopedRoleMembership.cs
@@ -67,7 +67,7 @@ public string RoleId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ScopedRoleMembership CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ScopedRoleMembership();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("administrativeUnitId", AdministrativeUnitId);
             writer.WriteStringValue("roleId", RoleId);
diff --git a/src/Microsoft.Graph/Generated/Models/ScopedRoleMembershipCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ScopedRoleMembershipCollectionResponse.cs
index 9f73a60e6d6..f67ddd8b808 100644
--- a/src/Microsoft.Graph/Generated/Models/ScopedRoleMembershipCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScopedRoleMembershipCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ScopedRoleMembershipCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ScopedRoleMembershipCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ScopedRoleMembershipCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScopedRoleMembership>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ScoredEmailAddress.cs b/src/Microsoft.Graph/Generated/Models/ScoredEmailAddress.cs
index b0d6b305b8e..c2d68ce9e1e 100644
--- a/src/Microsoft.Graph/Generated/Models/ScoredEmailAddress.cs
+++ b/src/Microsoft.Graph/Generated/Models/ScoredEmailAddress.cs
@@ -96,7 +96,7 @@ public ScoredEmailAddress()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ScoredEmailAddress CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ScoredEmailAddress();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("address", Address);
             writer.WriteStringValue("itemId", ItemId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/Acronym.cs b/src/Microsoft.Graph/Generated/Models/Search/Acronym.cs
index 2fbbccadc78..03caf453e3a 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/Acronym.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/Acronym.cs
@@ -41,7 +41,7 @@ public string StandsFor
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Search.Acronym CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.Acronym();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("standsFor", StandsFor);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Search.AnswerState>("state", State);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/AcronymCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Search/AcronymCollectionResponse.cs
index ef54b90a010..a01a8d1056e 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/AcronymCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/AcronymCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AcronymCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Search.AcronymCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.AcronymCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Search.Acronym>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Search/AnswerKeyword.cs b/src/Microsoft.Graph/Generated/Models/Search/AnswerKeyword.cs
index fbae1734995..10d277296e9 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/AnswerKeyword.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/AnswerKeyword.cs
@@ -90,7 +90,7 @@ public AnswerKeyword()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Search.AnswerKeyword CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.AnswerKeyword();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("keywords", Keywords);
             writer.WriteBoolValue("matchSimilarKeywords", MatchSimilarKeywords);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/AnswerVariant.cs b/src/Microsoft.Graph/Generated/Models/Search/AnswerVariant.cs
index 843a4110850..fc86b0ff851 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/AnswerVariant.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/AnswerVariant.cs
@@ -122,7 +122,7 @@ public AnswerVariant()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Search.AnswerVariant CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.AnswerVariant();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("languageTag", LanguageTag);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/Bookmark.cs b/src/Microsoft.Graph/Generated/Models/Search/Bookmark.cs
index a3bc9ab1c8e..c86e43a4c39 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/Bookmark.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/Bookmark.cs
@@ -155,7 +155,7 @@ public List<string> PowerAppIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Search.Bookmark CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.Bookmark();
         }
         /// <summary>
@@ -185,7 +185,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("availabilityEndDateTime", AvailabilityEndDateTime);
             writer.WriteDateTimeOffsetValue("availabilityStartDateTime", AvailabilityStartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/BookmarkCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Search/BookmarkCollectionResponse.cs
index ee0f0368983..6759e079f1f 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/BookmarkCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/BookmarkCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class BookmarkCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Search.BookmarkCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.BookmarkCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Search.Bookmark>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Search/Identity.cs b/src/Microsoft.Graph/Generated/Models/Search/Identity.cs
index 0c2b8d355fb..84db98348c6 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/Identity.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/Identity.cs
@@ -84,7 +84,7 @@ public Identity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Search.Identity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.Identity();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/IdentitySet.cs b/src/Microsoft.Graph/Generated/Models/Search/IdentitySet.cs
index 05d1a021fd4..acc09fe0460 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/IdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/IdentitySet.cs
@@ -100,7 +100,7 @@ public IdentitySet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Search.IdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.IdentitySet();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Search.Identity>("application", Application);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Search.Identity>("device", Device);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/Qna.cs b/src/Microsoft.Graph/Generated/Models/Search/Qna.cs
index 1ff695818ff..fc885a41733 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/Qna.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/Qna.cs
@@ -123,7 +123,7 @@ public List<string> LanguageTags
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Search.Qna CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.Qna();
         }
         /// <summary>
@@ -151,7 +151,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("availabilityEndDateTime", AvailabilityEndDateTime);
             writer.WriteDateTimeOffsetValue("availabilityStartDateTime", AvailabilityStartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Search/QnaCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Search/QnaCollectionResponse.cs
index 7ca25406709..2686feabe23 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/QnaCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/QnaCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class QnaCollectionResponse : global::Microsoft.Graph.Models.Base
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Search.QnaCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Search.QnaCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Search.Qna>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Search/SearchAnswer.cs b/src/Microsoft.Graph/Generated/Models/Search/SearchAnswer.cs
index a27ae08e132..afe5b22d877 100644
--- a/src/Microsoft.Graph/Generated/Models/Search/SearchAnswer.cs
+++ b/src/Microsoft.Graph/Generated/Models/Search/SearchAnswer.cs
@@ -89,7 +89,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Search.SearchAnswer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchAggregation.cs b/src/Microsoft.Graph/Generated/Models/SearchAggregation.cs
index c2b4467867f..a6045651543 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchAggregation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchAggregation.cs
@@ -84,7 +84,7 @@ public SearchAggregation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchAggregation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchAggregation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SearchBucket>("buckets", Buckets);
             writer.WriteStringValue("field", Field);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchAlteration.cs b/src/Microsoft.Graph/Generated/Models/SearchAlteration.cs
index 1de0dae92c8..a3f8ee5971d 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchAlteration.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchAlteration.cs
@@ -100,7 +100,7 @@ public SearchAlteration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchAlteration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchAlteration();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("alteredHighlightedQueryString", AlteredHighlightedQueryString);
             writer.WriteStringValue("alteredQueryString", AlteredQueryString);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AlteredQueryToken>("alteredQueryTokens", AlteredQueryTokens);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchAlterationOptions.cs b/src/Microsoft.Graph/Generated/Models/SearchAlterationOptions.cs
index c830e7e9258..db2c8d8031e 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchAlterationOptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchAlterationOptions.cs
@@ -64,7 +64,7 @@ public SearchAlterationOptions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchAlterationOptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchAlterationOptions();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("enableModification", EnableModification);
             writer.WriteBoolValue("enableSuggestion", EnableSuggestion);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchBucket.cs b/src/Microsoft.Graph/Generated/Models/SearchBucket.cs
index bf6f9525da1..553ecf6e10c 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchBucket.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchBucket.cs
@@ -90,7 +90,7 @@ public SearchBucket()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchBucket CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchBucket();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("aggregationFilterToken", AggregationFilterToken);
             writer.WriteIntValue("count", Count);
             writer.WriteStringValue("key", Key);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchEntity.cs b/src/Microsoft.Graph/Generated/Models/SearchEntity.cs
index cb4895c5d96..0bd5a201321 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchEntity.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchEntity.cs
@@ -68,7 +68,7 @@ public partial class SearchEntity : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SearchEntity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchEntity();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Search.Acronym>("acronyms", Acronyms);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Search.Bookmark>("bookmarks", Bookmarks);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchHit.cs b/src/Microsoft.Graph/Generated/Models/SearchHit.cs
index 4ead4a8943b..9760addf511 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchHit.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchHit.cs
@@ -144,7 +144,7 @@ public SearchHit()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchHit CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchHit();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentSource", ContentSource);
             writer.WriteStringValue("hitId", HitId);
             writer.WriteBoolValue("isCollapsed", IsCollapsed);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchHitsContainer.cs b/src/Microsoft.Graph/Generated/Models/SearchHitsContainer.cs
index 1ca60061c75..f8a6bec59b0 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchHitsContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchHitsContainer.cs
@@ -96,7 +96,7 @@ public SearchHitsContainer()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchHitsContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchHitsContainer();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SearchAggregation>("aggregations", Aggregations);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SearchHit>("hits", Hits);
             writer.WriteBoolValue("moreResultsAvailable", MoreResultsAvailable);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchQuery.cs b/src/Microsoft.Graph/Generated/Models/SearchQuery.cs
index 8fe9431b18a..0a86af0ae48 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchQuery.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchQuery.cs
@@ -84,7 +84,7 @@ public SearchQuery()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchQuery CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchQuery();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("queryString", QueryString);
             writer.WriteStringValue("queryTemplate", QueryTemplate);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchRequest.cs b/src/Microsoft.Graph/Generated/Models/SearchRequest.cs
index de8e335289f..c5a050873e3 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchRequest.cs
@@ -262,7 +262,7 @@ public SearchRequest()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchRequest();
         }
         /// <summary>
@@ -297,7 +297,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("aggregationFilters", AggregationFilters);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AggregationOption>("aggregations", Aggregations);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CollapseProperty>("collapseProperties", CollapseProperties);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchResponse.cs b/src/Microsoft.Graph/Generated/Models/SearchResponse.cs
index b0f88d665b8..036565ad802 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchResponse.cs
@@ -116,7 +116,7 @@ public SearchResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchResponse();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SearchHitsContainer>("hitsContainers", HitsContainers);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AlterationResponse>("queryAlterationResponse", QueryAlterationResponse);
diff --git a/src/Microsoft.Graph/Generated/Models/SearchResult.cs b/src/Microsoft.Graph/Generated/Models/SearchResult.cs
index b5bf301c35c..df3760f413c 100644
--- a/src/Microsoft.Graph/Generated/Models/SearchResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/SearchResult.cs
@@ -68,7 +68,7 @@ public SearchResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SearchResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SearchResult();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("onClickTelemetryUrl", OnClickTelemetryUrl);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/SectionGroup.cs b/src/Microsoft.Graph/Generated/Models/SectionGroup.cs
index d92906aafba..5f1f38a2592 100644
--- a/src/Microsoft.Graph/Generated/Models/SectionGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/SectionGroup.cs
@@ -122,7 +122,7 @@ public SectionGroup() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SectionGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SectionGroup();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Notebook>("parentNotebook", ParentNotebook);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SectionGroup>("parentSectionGroup", ParentSectionGroup);
diff --git a/src/Microsoft.Graph/Generated/Models/SectionGroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SectionGroupCollectionResponse.cs
index a30471fd6f1..62e3f271650 100644
--- a/src/Microsoft.Graph/Generated/Models/SectionGroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SectionGroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SectionGroupCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SectionGroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SectionGroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SectionGroup>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SectionLinks.cs b/src/Microsoft.Graph/Generated/Models/SectionLinks.cs
index 39dd08ee556..a7a5debfa8b 100644
--- a/src/Microsoft.Graph/Generated/Models/SectionLinks.cs
+++ b/src/Microsoft.Graph/Generated/Models/SectionLinks.cs
@@ -84,7 +84,7 @@ public SectionLinks()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SectionLinks CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SectionLinks();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteClientUrl", OneNoteClientUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExternalLink>("oneNoteWebUrl", OneNoteWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/SecureScore.cs b/src/Microsoft.Graph/Generated/Models/SecureScore.cs
index 38200db6c60..d1e756e4872 100644
--- a/src/Microsoft.Graph/Generated/Models/SecureScore.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecureScore.cs
@@ -129,7 +129,7 @@ public double? MaxScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SecureScore CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecureScore();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("activeUserCount", ActiveUserCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AverageComparativeScore>("averageComparativeScores", AverageComparativeScores);
diff --git a/src/Microsoft.Graph/Generated/Models/SecureScoreCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SecureScoreCollectionResponse.cs
index d184d8d088b..d324ee23902 100644
--- a/src/Microsoft.Graph/Generated/Models/SecureScoreCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecureScoreCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SecureScoreCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SecureScoreCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecureScoreCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SecureScore>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfile.cs b/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfile.cs
index 16221ae7fe3..e86531dc72f 100644
--- a/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfile.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfile.cs
@@ -283,7 +283,7 @@ public string UserImpact
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SecureScoreControlProfile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecureScoreControlProfile();
         }
         /// <summary>
@@ -321,7 +321,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("actionType", ActionType);
             writer.WriteStringValue("actionUrl", ActionUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfileCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfileCollectionResponse.cs
index 478442e6ccb..9cb7044f147 100644
--- a/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfileCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecureScoreControlProfileCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SecureScoreControlProfileCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SecureScoreControlProfileCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecureScoreControlProfileCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SecureScoreControlProfile>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SecureScoreControlStateUpdate.cs b/src/Microsoft.Graph/Generated/Models/SecureScoreControlStateUpdate.cs
index 0d3ccd6dd8e..fd6cd1b5c44 100644
--- a/src/Microsoft.Graph/Generated/Models/SecureScoreControlStateUpdate.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecureScoreControlStateUpdate.cs
@@ -122,7 +122,7 @@ public SecureScoreControlStateUpdate()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SecureScoreControlStateUpdate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecureScoreControlStateUpdate();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("assignedTo", AssignedTo);
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SecureSignInSessionControl.cs b/src/Microsoft.Graph/Generated/Models/SecureSignInSessionControl.cs
index 2a56a69b2f1..9c254f658d4 100644
--- a/src/Microsoft.Graph/Generated/Models/SecureSignInSessionControl.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecureSignInSessionControl.cs
@@ -26,7 +26,7 @@ public SecureSignInSessionControl() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SecureSignInSessionControl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecureSignInSessionControl();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Alert.cs b/src/Microsoft.Graph/Generated/Models/Security/Alert.cs
index b70f4835ace..ae558183985 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Alert.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Alert.cs
@@ -437,7 +437,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Alert CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Alert();
         }
         /// <summary>
@@ -489,7 +489,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("actorDisplayName", ActorDisplayName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Dictionary>("additionalData", AdditionalDataProperty);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AlertCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/AlertCollectionResponse.cs
index 04de4011d8e..e5820592be6 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AlertCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AlertCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AlertCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.AlertCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AlertCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Alert>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AlertComment.cs b/src/Microsoft.Graph/Generated/Models/Security/AlertComment.cs
index e371b8eefe0..6add9459051 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AlertComment.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AlertComment.cs
@@ -90,7 +90,7 @@ public AlertComment()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.AlertComment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AlertComment();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("createdByDisplayName", CreatedByDisplayName);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AlertEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/AlertEvidence.cs
index 5c2de404f9b..89847723026 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AlertEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AlertEvidence.cs
@@ -134,7 +134,7 @@ public AlertEvidence()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.AlertEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -211,7 +211,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteCollectionOfPrimitiveValues<string>("detailedRoles", DetailedRoles);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AmazonResourceEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/AmazonResourceEvidence.cs
index 5bb72fd0c42..c1bf7402600 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AmazonResourceEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AmazonResourceEvidence.cs
@@ -90,7 +90,7 @@ public AmazonResourceEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.AmazonResourceEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AmazonResourceEvidence();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("amazonAccountId", AmazonAccountId);
             writer.WriteStringValue("amazonResourceId", AmazonResourceId);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AnalyzedMessageEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/AnalyzedMessageEvidence.cs
index 0e9156d0334..415cc90e020 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AnalyzedMessageEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AnalyzedMessageEvidence.cs
@@ -284,7 +284,7 @@ public AnalyzedMessageEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.AnalyzedMessageEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AnalyzedMessageEvidence();
         }
         /// <summary>
@@ -321,7 +321,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("antiSpamDirection", AntiSpamDirection);
             writer.WriteLongValue("attachmentsCount", AttachmentsCount);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Article.cs b/src/Microsoft.Graph/Generated/Models/Security/Article.cs
index 198986a430a..832f4970817 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Article.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Article.cs
@@ -133,7 +133,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Article CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Article();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.FormattedContent>("body", Body);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ArticleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/ArticleCollectionResponse.cs
index 7152ba5f022..c6a0304a63e 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ArticleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ArticleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ArticleCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ArticleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ArticleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Article>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicator.cs b/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicator.cs
index 4a56ae232c4..78e557af58f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicator.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicator.cs
@@ -26,7 +26,7 @@ public ArticleIndicator() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ArticleIndicator CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ArticleIndicator();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicatorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicatorCollectionResponse.cs
index cc058815e71..836ffc64e37 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicatorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ArticleIndicatorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ArticleIndicatorCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ArticleIndicatorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ArticleIndicatorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.ArticleIndicator>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Artifact.cs b/src/Microsoft.Graph/Generated/Models/Security/Artifact.cs
index b962da241b6..17d4a8edce3 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Artifact.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Artifact.cs
@@ -19,7 +19,7 @@ public partial class Artifact : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Artifact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplate.cs b/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplate.cs
index a9f0f135e8f..891b24fb36c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplate.cs
@@ -19,7 +19,7 @@ public partial class AuthorityTemplate : global::Microsoft.Graph.Models.Security
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.AuthorityTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AuthorityTemplate();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplateCollectionResponse.cs
index 5de56240ca8..07e07d05c08 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AuthorityTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class AuthorityTemplateCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.AuthorityTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AuthorityTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.AuthorityTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AutonomousSystem.cs b/src/Microsoft.Graph/Generated/Models/Security/AutonomousSystem.cs
index a9bdaf96b24..e6ad28db7f2 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AutonomousSystem.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AutonomousSystem.cs
@@ -106,7 +106,7 @@ public AutonomousSystem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.AutonomousSystem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AutonomousSystem();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteIntValue("number", Number);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/AzureResourceEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/AzureResourceEvidence.cs
index cd37deee803..f1e9cdb2eeb 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/AzureResourceEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/AzureResourceEvidence.cs
@@ -74,7 +74,7 @@ public AzureResourceEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.AzureResourceEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.AzureResourceEvidence();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("resourceId", ResourceId);
             writer.WriteStringValue("resourceName", ResourceName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/BlobContainerEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/BlobContainerEvidence.cs
index 73f22169255..5ace3471a1b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/BlobContainerEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/BlobContainerEvidence.cs
@@ -74,7 +74,7 @@ public BlobContainerEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.BlobContainerEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.BlobContainerEvidence();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.AzureResourceEvidence>("storageResource", StorageResource);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/BlobEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/BlobEvidence.cs
index ee20861f35a..a2e66c9cdb2 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/BlobEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/BlobEvidence.cs
@@ -106,7 +106,7 @@ public BlobEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.BlobEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.BlobEvidence();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.BlobContainerEvidence>("blobContainer", BlobContainer);
             writer.WriteStringValue("etag", Etag);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Case.cs b/src/Microsoft.Graph/Generated/Models/Security/Case.cs
index 6ad396d8cf4..3286050275b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Case.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Case.cs
@@ -85,7 +85,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Case CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -115,7 +115,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CaseOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/CaseOperation.cs
index 53f9ca6d483..427d5c606c1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CaseOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CaseOperation.cs
@@ -81,7 +81,7 @@ public int? PercentProgress
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CaseOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -119,7 +119,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.CaseAction>("action", Action);
             writer.WriteDateTimeOffsetValue("completedDateTime", CompletedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CaseOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/CaseOperationCollectionResponse.cs
index df019bd9b01..4988191f86a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CaseOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CaseOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CaseOperationCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CaseOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CaseOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.CaseOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CasesRoot.cs b/src/Microsoft.Graph/Generated/Models/Security/CasesRoot.cs
index 8d551748e3a..7fb33dee0f3 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CasesRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CasesRoot.cs
@@ -35,7 +35,7 @@ public partial class CasesRoot : global::Microsoft.Graph.Models.Entity, IParsabl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CasesRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CasesRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryCase>("ediscoveryCases", EdiscoveryCases);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplate.cs b/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplate.cs
index 2921a01b7a4..4e79ea0f554 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplate.cs
@@ -35,7 +35,7 @@ public partial class CategoryTemplate : global::Microsoft.Graph.Models.Security.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CategoryTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CategoryTemplate();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.SubcategoryTemplate>("subcategories", Subcategories);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplateCollectionResponse.cs
index f6361a0a1c8..59dec586ed6 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CategoryTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CategoryTemplateCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CategoryTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CategoryTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.CategoryTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CitationTemplate.cs b/src/Microsoft.Graph/Generated/Models/Security/CitationTemplate.cs
index 15818714617..7ebc296ce58 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CitationTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CitationTemplate.cs
@@ -51,7 +51,7 @@ public string CitationUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CitationTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CitationTemplate();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("citationJurisdiction", CitationJurisdiction);
             writer.WriteStringValue("citationUrl", CitationUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CitationTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/CitationTemplateCollectionResponse.cs
index 39a14ec1af9..e0e974f6724 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CitationTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CitationTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class CitationTemplateCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CitationTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CitationTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.CitationTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CloudApplicationEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/CloudApplicationEvidence.cs
index 0373c49077a..6a220eb3ead 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CloudApplicationEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CloudApplicationEvidence.cs
@@ -92,7 +92,7 @@ public CloudApplicationEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CloudApplicationEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CloudApplicationEvidence();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteLongValue("appId", AppId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CloudLogonRequestEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/CloudLogonRequestEvidence.cs
index 2674669e408..fe7b86e7a4c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CloudLogonRequestEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CloudLogonRequestEvidence.cs
@@ -42,7 +42,7 @@ public CloudLogonRequestEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CloudLogonRequestEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CloudLogonRequestEvidence();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("requestId", RequestId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CloudLogonSessionEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/CloudLogonSessionEvidence.cs
index 6e1e35d0c0b..59a3f94dbea 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CloudLogonSessionEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CloudLogonSessionEvidence.cs
@@ -150,7 +150,7 @@ public CloudLogonSessionEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.CloudLogonSessionEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CloudLogonSessionEvidence();
         }
         /// <summary>
@@ -178,7 +178,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.UserEvidence>("account", Account);
             writer.WriteStringValue("browser", Browser);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ContainerEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/ContainerEvidence.cs
index fe0bc0023b3..f43111faa4e 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ContainerEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ContainerEvidence.cs
@@ -128,7 +128,7 @@ public ContainerEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ContainerEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ContainerEvidence();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("args", Args);
             writer.WriteCollectionOfPrimitiveValues<string>("command", Command);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ContainerImageEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/ContainerImageEvidence.cs
index 76c814b13be..716301f45b1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ContainerImageEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ContainerImageEvidence.cs
@@ -74,7 +74,7 @@ public ContainerImageEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ContainerImageEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ContainerImageEvidence();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.ContainerImageEvidence>("digestImage", DigestImage);
             writer.WriteStringValue("imageId", ImageId);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ContainerRegistryEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/ContainerRegistryEvidence.cs
index 601d9315821..8807c42bf06 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ContainerRegistryEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ContainerRegistryEvidence.cs
@@ -42,7 +42,7 @@ public ContainerRegistryEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ContainerRegistryEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ContainerRegistryEvidence();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("registry", Registry);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/CvssSummary.cs b/src/Microsoft.Graph/Generated/Models/Security/CvssSummary.cs
index 6eb77d24bed..e9f1239938f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/CvssSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/CvssSummary.cs
@@ -80,7 +80,7 @@ public CvssSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.CvssSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.CvssSummary();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDoubleValue("score", Score);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.VulnerabilitySeverity>("severity", Severity);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DataSet.cs b/src/Microsoft.Graph/Generated/Models/Security/DataSet.cs
index d960a39b910..3a55d148cf9 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DataSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DataSet.cs
@@ -73,7 +73,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DataSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DataSource.cs b/src/Microsoft.Graph/Generated/Models/Security/DataSource.cs
index 28142a8fdb1..3f9b896fc99 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DataSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DataSource.cs
@@ -63,7 +63,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DataSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DataSourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/DataSourceCollectionResponse.cs
index 18d3eddaa4d..cae9ec51354 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DataSourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DataSourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DataSourceCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DataSourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DataSourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.DataSource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DataSourceContainer.cs b/src/Microsoft.Graph/Generated/Models/Security/DataSourceContainer.cs
index 8f3a2b42187..b8e73d55896 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DataSourceContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DataSourceContainer.cs
@@ -65,7 +65,7 @@ public DateTimeOffset? ReleasedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DataSourceContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplate.cs b/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplate.cs
index cf7ab122ce6..f6befc2fadd 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplate.cs
@@ -19,7 +19,7 @@ public partial class DepartmentTemplate : global::Microsoft.Graph.Models.Securit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DepartmentTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DepartmentTemplate();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplateCollectionResponse.cs
index f82cb9531db..fbab1e68dc0 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DepartmentTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DepartmentTemplateCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DepartmentTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DepartmentTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.DepartmentTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DeploymentAccessKeyType.cs b/src/Microsoft.Graph/Generated/Models/Security/DeploymentAccessKeyType.cs
index 4ed486ea5a1..c3eda738b45 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DeploymentAccessKeyType.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DeploymentAccessKeyType.cs
@@ -68,7 +68,7 @@ public DeploymentAccessKeyType()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.DeploymentAccessKeyType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DeploymentAccessKeyType();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("deploymentAccessKey", DeploymentAccessKey);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DeviceEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/DeviceEvidence.cs
index 6f5dbce660d..30a7ab2fed4 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DeviceEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DeviceEvidence.cs
@@ -292,7 +292,7 @@ public DeviceEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DeviceEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DeviceEvidence();
         }
         /// <summary>
@@ -332,7 +332,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("azureAdDeviceId", AzureAdDeviceId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.DefenderAvStatus>("defenderAvStatus", DefenderAvStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Dictionary.cs b/src/Microsoft.Graph/Generated/Models/Security/Dictionary.cs
index 5382a0a07fe..e2f4ce59404 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Dictionary.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Dictionary.cs
@@ -52,7 +52,7 @@ public Dictionary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.Dictionary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Dictionary();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStage.cs b/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStage.cs
index fdf64041f30..071867e34dd 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStage.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStage.cs
@@ -67,7 +67,7 @@ public string StageNumber
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DispositionReviewStage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DispositionReviewStage();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
             writer.WriteCollectionOfPrimitiveValues<string>("reviewersEmailAddresses", ReviewersEmailAddresses);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStageCollectionResponse.cs
index b3499f6c2df..391956ed877 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DispositionReviewStageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class DispositionReviewStageCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DispositionReviewStageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DispositionReviewStageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.DispositionReviewStage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/DnsEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/DnsEvidence.cs
index 480e3fc1833..80f44a0be3c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/DnsEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/DnsEvidence.cs
@@ -90,7 +90,7 @@ public DnsEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.DnsEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.DnsEvidence();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.IpEvidence>("dnsServerIp", DnsServerIp);
             writer.WriteStringValue("domainName", DomainName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryAddToReviewSetOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryAddToReviewSetOperation.cs
index 56d51f955ca..c9954bae905 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryAddToReviewSetOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryAddToReviewSetOperation.cs
@@ -91,7 +91,7 @@ public partial class EdiscoveryAddToReviewSetOperation : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryAddToReviewSetOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryAddToReviewSetOperation();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.AdditionalDataOptions>("additionalDataOptions", AdditionalDataOptions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.CloudAttachmentVersion>("cloudAttachmentVersion", CloudAttachmentVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCase.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCase.cs
index 84f882833ab..bcd7e81061d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCase.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCase.cs
@@ -176,7 +176,7 @@ public EdiscoveryCase() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryCase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryCase();
         }
         /// <summary>
@@ -205,7 +205,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("closedBy", ClosedBy);
             writer.WriteDateTimeOffsetValue("closedDateTime", ClosedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseCollectionResponse.cs
index 34f07752082..0771ab90053 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EdiscoveryCaseCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryCaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryCaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryCase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseSettings.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseSettings.cs
index e18836086f0..a3b1381bd9d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCaseSettings.cs
@@ -67,7 +67,7 @@ public partial class EdiscoveryCaseSettings : global::Microsoft.Graph.Models.Ent
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryCaseSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryCaseSettings();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.OcrSettings>("ocr", Ocr);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.RedundancyDetectionSettings>("redundancyDetection", RedundancyDetection);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodian.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodian.cs
index 3603d1e9cab..79f219a3a2e 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodian.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodian.cs
@@ -112,7 +112,7 @@ public EdiscoveryCustodian() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryCustodian CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryCustodian();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("acknowledgedDateTime", AcknowledgedDateTime);
             writer.WriteStringValue("email", Email);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodianCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodianCollectionResponse.cs
index 06796b3009e..2374e7eeb1e 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodianCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryCustodianCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EdiscoveryCustodianCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryCustodianCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryCustodianCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryCustodian>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryEstimateOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryEstimateOperation.cs
index 44aa00b1509..fc31b2557ce 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryEstimateOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryEstimateOperation.cs
@@ -93,7 +93,7 @@ public long? UnindexedItemsSize
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryEstimateOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryEstimateOperation();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteLongValue("indexedItemCount", IndexedItemCount);
             writer.WriteLongValue("indexedItemsSize", IndexedItemsSize);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryExportOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryExportOperation.cs
index 7a6076b49e4..859181839b1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryExportOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryExportOperation.cs
@@ -111,7 +111,7 @@ public string OutputName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryExportOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryExportOperation();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.ExportFileMetadata>("exportFileMetadata", ExportFileMetadata);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryHoldOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryHoldOperation.cs
index 6660ed1d951..d399782fc84 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryHoldOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryHoldOperation.cs
@@ -19,7 +19,7 @@ public partial class EdiscoveryHoldOperation : global::Microsoft.Graph.Models.Se
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryHoldOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryHoldOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryIndexOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryIndexOperation.cs
index bd167f26c64..42d2e78c19a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryIndexOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryIndexOperation.cs
@@ -19,7 +19,7 @@ public partial class EdiscoveryIndexOperation : global::Microsoft.Graph.Models.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryIndexOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryIndexOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSource.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSource.cs
index 0a3afbfc72a..d3c44db5309 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSource.cs
@@ -58,7 +58,7 @@ public EdiscoveryNoncustodialDataSource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.DataSource>("dataSource", DataSource);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.EdiscoveryIndexOperation>("lastIndexOperation", LastIndexOperation);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSourceCollectionResponse.cs
index c8e5a36aed5..ce98d216218 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryNoncustodialDataSourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EdiscoveryNoncustodialDataSourceCollectionResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryPurgeDataOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryPurgeDataOperation.cs
index e19465ac44e..295fb855f22 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryPurgeDataOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryPurgeDataOperation.cs
@@ -19,7 +19,7 @@ public partial class EdiscoveryPurgeDataOperation : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryPurgeDataOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryPurgeDataOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSet.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSet.cs
index 593cc911ec8..321cdb144fb 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSet.cs
@@ -42,7 +42,7 @@ public EdiscoveryReviewSet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery>("queries", Queries);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetCollectionResponse.cs
index 37b70a6708e..24a226be8ed 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EdiscoveryReviewSetCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQuery.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQuery.cs
index e7f7c6105a7..d2638cdfec1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQuery.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQuery.cs
@@ -26,7 +26,7 @@ public EdiscoveryReviewSetQuery() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQueryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQueryCollectionResponse.cs
index 706e8f91c9c..6af6e83edfb 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQueryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewSetQueryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EdiscoveryReviewSetQueryCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQueryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQueryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTag.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTag.cs
index 49449361456..51946cc9cf0 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTag.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTag.cs
@@ -64,7 +64,7 @@ public EdiscoveryReviewTag() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.ChildSelectability>("childSelectability", ChildSelectability);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag>("childTags", ChildTags);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTagCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTagCollectionResponse.cs
index 80bb4f3f8bb..5d367c213a2 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTagCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryReviewTagCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EdiscoveryReviewTagCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryReviewTagCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryReviewTagCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearch.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearch.cs
index 9c5f1ebc535..50830a4bbce 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearch.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearch.cs
@@ -112,7 +112,7 @@ public EdiscoverySearch() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoverySearch CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoverySearch();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.DataSource>("additionalSources", AdditionalSources);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.EdiscoveryAddToReviewSetOperation>("addToReviewSetOperation", AddToReviewSetOperation);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchCollectionResponse.cs
index c6f435e948d..3a519d33bae 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class EdiscoverySearchCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoverySearchCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoverySearchCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoverySearch>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchExportOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchExportOperation.cs
index c0108f8f7ab..7cd965c5ccf 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchExportOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoverySearchExportOperation.cs
@@ -125,7 +125,7 @@ public bool? ExportSingleItems
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoverySearchExportOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoverySearchExportOperation();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.AdditionalOptions>("additionalOptions", AdditionalOptions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.CloudAttachmentVersion>("cloudAttachmentVersion", CloudAttachmentVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryTagOperation.cs b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryTagOperation.cs
index 7a2a5970689..f09b5fdcb1f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryTagOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EdiscoveryTagOperation.cs
@@ -19,7 +19,7 @@ public partial class EdiscoveryTagOperation : global::Microsoft.Graph.Models.Sec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.EdiscoveryTagOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EdiscoveryTagOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EmailSender.cs b/src/Microsoft.Graph/Generated/Models/Security/EmailSender.cs
index 12b1d1eb8c5..e53030d15f3 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EmailSender.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EmailSender.cs
@@ -100,7 +100,7 @@ public EmailSender()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.EmailSender CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EmailSender();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("domainName", DomainName);
             writer.WriteStringValue("emailAddress", EmailAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EventPropagationResult.cs b/src/Microsoft.Graph/Generated/Models/Security/EventPropagationResult.cs
index cbc395f1d63..49611d3feed 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EventPropagationResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EventPropagationResult.cs
@@ -106,7 +106,7 @@ public EventPropagationResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.EventPropagationResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EventPropagationResult();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("location", Location);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("serviceName", ServiceName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/EventQuery.cs b/src/Microsoft.Graph/Generated/Models/Security/EventQuery.cs
index 0a55c39b570..f509e868b6c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/EventQuery.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/EventQuery.cs
@@ -74,7 +74,7 @@ public EventQuery()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.EventQuery CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.EventQuery();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("query", Query);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.QueryType>("queryType", QueryType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ExportFileMetadata.cs b/src/Microsoft.Graph/Generated/Models/Security/ExportFileMetadata.cs
index 2a4ad1bd9bf..52fcfd3f0e4 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ExportFileMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ExportFileMetadata.cs
@@ -90,7 +90,7 @@ public ExportFileMetadata()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.ExportFileMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ExportFileMetadata();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("downloadUrl", DownloadUrl);
             writer.WriteStringValue("fileName", FileName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FileDetails.cs b/src/Microsoft.Graph/Generated/Models/Security/FileDetails.cs
index f6a962b2c82..00a5099d54c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FileDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FileDetails.cs
@@ -202,7 +202,7 @@ public FileDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.FileDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FileDetails();
         }
         /// <summary>
@@ -232,7 +232,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("fileName", FileName);
             writer.WriteStringValue("filePath", FilePath);
             writer.WriteStringValue("filePublisher", FilePublisher);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FileEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/FileEvidence.cs
index aaf5fb72d13..ffdb6f89aae 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FileEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FileEvidence.cs
@@ -64,7 +64,7 @@ public FileEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FileEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FileEvidence();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.DetectionStatus>("detectionStatus", DetectionStatus);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.FileDetails>("fileDetails", FileDetails);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FileHash.cs b/src/Microsoft.Graph/Generated/Models/Security/FileHash.cs
index 27abf5482c3..3ab8d86945c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FileHash.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FileHash.cs
@@ -74,7 +74,7 @@ public FileHash()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.FileHash CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FileHash();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.FileHashAlgorithm>("algorithm", Algorithm);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FileHashEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/FileHashEvidence.cs
index c72302a5a08..c4664287471 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FileHashEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FileHashEvidence.cs
@@ -48,7 +48,7 @@ public FileHashEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FileHashEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FileHashEvidence();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.FileHashAlgorithm>("algorithm", Algorithm);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanAppliedCategory.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanAppliedCategory.cs
index 6fa1cf91fef..2f163621874 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanAppliedCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanAppliedCategory.cs
@@ -35,7 +35,7 @@ public partial class FilePlanAppliedCategory : global::Microsoft.Graph.Models.Se
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanAppliedCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanAppliedCategory();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.FilePlanSubcategory>("subcategory", Subcategory);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanAuthority.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanAuthority.cs
index e7628b21237..fd5b1dee5cf 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanAuthority.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanAuthority.cs
@@ -19,7 +19,7 @@ public partial class FilePlanAuthority : global::Microsoft.Graph.Models.Security
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanAuthority CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanAuthority();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanCitation.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanCitation.cs
index 2de0d8b197b..d925e60f8b9 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanCitation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanCitation.cs
@@ -51,7 +51,7 @@ public string CitationUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanCitation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanCitation();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("citationJurisdiction", CitationJurisdiction);
             writer.WriteStringValue("citationUrl", CitationUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDepartment.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDepartment.cs
index 4779dd302ff..d7f15dfc639 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDepartment.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDepartment.cs
@@ -19,7 +19,7 @@ public partial class FilePlanDepartment : global::Microsoft.Graph.Models.Securit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanDepartment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanDepartment();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptor.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptor.cs
index 06f09bdcd52..8d640596afc 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptor.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptor.cs
@@ -179,7 +179,7 @@ public partial class FilePlanDescriptor : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanDescriptor CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanDescriptor();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.FilePlanAuthority>("authority", Authority);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.AuthorityTemplate>("authorityTemplate", AuthorityTemplate);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorBase.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorBase.cs
index b140116da88..f6a0d0f679a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorBase.cs
@@ -68,7 +68,7 @@ public FilePlanDescriptorBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.FilePlanDescriptorBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -99,7 +99,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorTemplate.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorTemplate.cs
index 85b38a5087e..b374b14263f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanDescriptorTemplate.cs
@@ -57,7 +57,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanDescriptorTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanReference.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanReference.cs
index 75902085dbb..df0400e2a3f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanReference.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanReference.cs
@@ -19,7 +19,7 @@ public partial class FilePlanReference : global::Microsoft.Graph.Models.Security
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanReference CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanReference();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplate.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplate.cs
index 5d73572831a..9630897e926 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplate.cs
@@ -19,7 +19,7 @@ public partial class FilePlanReferenceTemplate : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplateCollectionResponse.cs
index d444dfe5d7e..d1d8d6acc0f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanReferenceTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class FilePlanReferenceTemplateCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FilePlanSubcategory.cs b/src/Microsoft.Graph/Generated/Models/Security/FilePlanSubcategory.cs
index b3d3927a75c..a247c2838f5 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FilePlanSubcategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FilePlanSubcategory.cs
@@ -19,7 +19,7 @@ public partial class FilePlanSubcategory : global::Microsoft.Graph.Models.Securi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.FilePlanSubcategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FilePlanSubcategory();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/FormattedContent.cs b/src/Microsoft.Graph/Generated/Models/Security/FormattedContent.cs
index 52d1eea7282..73679f615a0 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/FormattedContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/FormattedContent.cs
@@ -74,7 +74,7 @@ public FormattedContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.FormattedContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.FormattedContent();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("content", Content);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.ContentFormat>("format", Format);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/GeoLocation.cs b/src/Microsoft.Graph/Generated/Models/Security/GeoLocation.cs
index 7fe742fb899..d3ba16d94d5 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/GeoLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/GeoLocation.cs
@@ -112,7 +112,7 @@ public GeoLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.GeoLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.GeoLocation();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("city", City);
             writer.WriteStringValue("countryName", CountryName);
             writer.WriteDoubleValue("latitude", Latitude);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/GitHubOrganizationEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/GitHubOrganizationEvidence.cs
index 1a3f242bc93..ef4cd2a9f61 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/GitHubOrganizationEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/GitHubOrganizationEvidence.cs
@@ -122,7 +122,7 @@ public GitHubOrganizationEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.GitHubOrganizationEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.GitHubOrganizationEvidence();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("company", Company);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/GitHubRepoEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/GitHubRepoEvidence.cs
index 9e2d1651201..ebc1924598c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/GitHubRepoEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/GitHubRepoEvidence.cs
@@ -106,7 +106,7 @@ public GitHubRepoEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.GitHubRepoEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.GitHubRepoEvidence();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("baseUrl", BaseUrl);
             writer.WriteStringValue("login", Login);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/GitHubUserEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/GitHubUserEvidence.cs
index 7a2617abcfb..55c96e799ea 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/GitHubUserEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/GitHubUserEvidence.cs
@@ -106,7 +106,7 @@ public GitHubUserEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.GitHubUserEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.GitHubUserEvidence();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("email", Email);
             writer.WriteStringValue("login", Login);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/GoogleCloudResourceEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/GoogleCloudResourceEvidence.cs
index e8bfdddffc8..3a373ad0847 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/GoogleCloudResourceEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/GoogleCloudResourceEvidence.cs
@@ -118,7 +118,7 @@ public GoogleCloudResourceEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.GoogleCloudResourceEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.GoogleCloudResourceEvidence();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("fullResourceName", FullResourceName);
             writer.WriteStringValue("location", Location);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HealthIssue.cs b/src/Microsoft.Graph/Generated/Models/Security/HealthIssue.cs
index d1454f0211c..ca9c30516ae 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HealthIssue.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HealthIssue.cs
@@ -177,7 +177,7 @@ public List<string> SensorDNSNames
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HealthIssue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HealthIssue();
         }
         /// <summary>
@@ -209,7 +209,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("additionalInformation", AdditionalInformation);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HealthIssueCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HealthIssueCollectionResponse.cs
index 61e89678de1..da2619f5a15 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HealthIssueCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HealthIssueCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HealthIssueCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HealthIssueCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HealthIssueCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HealthIssue>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Host.cs b/src/Microsoft.Graph/Generated/Models/Security/Host.cs
index 447f26bb320..c56dfbaca8b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Host.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Host.cs
@@ -246,7 +246,7 @@ public Host() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Host CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -286,7 +286,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostPair>("childHostPairs", ChildHostPairs);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostComponent>("components", Components);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HostCollectionResponse.cs
index 8bc8ec184da..132385e29b5 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HostCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Host>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostComponent.cs b/src/Microsoft.Graph/Generated/Models/Security/HostComponent.cs
index 8f41f8fe8b2..67cac3c0d94 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostComponent.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostComponent.cs
@@ -102,7 +102,7 @@ public HostComponent() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostComponent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostComponent();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("category", Category);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostComponentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HostComponentCollectionResponse.cs
index 446b74025c0..24b3bd0fb75 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostComponentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostComponentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HostComponentCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostComponentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostComponentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostComponent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostCookie.cs b/src/Microsoft.Graph/Generated/Models/Security/HostCookie.cs
index fd5de94beb2..8852ea3f136 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostCookie.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostCookie.cs
@@ -86,7 +86,7 @@ public HostCookie() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostCookie CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostCookie();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("domain", Domain);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostCookieCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HostCookieCollectionResponse.cs
index 458eecfd77a..e0af00d73ca 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostCookieCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostCookieCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HostCookieCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostCookieCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostCookieCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostCookie>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostLogonSessionEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/HostLogonSessionEvidence.cs
index 371386514f6..01631e2c7ae 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostLogonSessionEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostLogonSessionEvidence.cs
@@ -86,7 +86,7 @@ public HostLogonSessionEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostLogonSessionEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostLogonSessionEvidence();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.UserEvidence>("account", Account);
             writer.WriteDateTimeOffsetValue("endUtcDateTime", EndUtcDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostPair.cs b/src/Microsoft.Graph/Generated/Models/Security/HostPair.cs
index bbf7d60523c..fb10342e2a8 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostPair.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostPair.cs
@@ -79,7 +79,7 @@ public string LinkKind
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostPair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostPair();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Host>("childHost", ChildHost);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostPairCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HostPairCollectionResponse.cs
index f708cab7323..e8453b4dc5a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostPairCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostPairCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HostPairCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostPairCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostPairCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostPair>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostPort.cs b/src/Microsoft.Graph/Generated/Models/Security/HostPort.cs
index 962a8f53107..1d433e60431 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostPort.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostPort.cs
@@ -125,7 +125,7 @@ public int? TimesObserved
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostPort CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostPort();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostPortBanner>("banners", Banners);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostPortBanner.cs b/src/Microsoft.Graph/Generated/Models/Security/HostPortBanner.cs
index 6d918a796ee..1ca8f7ad08f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostPortBanner.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostPortBanner.cs
@@ -102,7 +102,7 @@ public HostPortBanner()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.HostPortBanner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostPortBanner();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("banner", Banner);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteDateTimeOffsetValue("lastSeenDateTime", LastSeenDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostPortCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HostPortCollectionResponse.cs
index 98d405cfba0..0a8e9faa0dd 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostPortCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostPortCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HostPortCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostPortCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostPortCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostPort>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostPortComponent.cs b/src/Microsoft.Graph/Generated/Models/Security/HostPortComponent.cs
index c8809de22d2..be88f0d568a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostPortComponent.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostPortComponent.cs
@@ -86,7 +86,7 @@ public HostPortComponent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.HostPortComponent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostPortComponent();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.HostComponent>("component", Component);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteBoolValue("isRecent", IsRecent);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostReputation.cs b/src/Microsoft.Graph/Generated/Models/Security/HostReputation.cs
index 2aa66c74766..f8946ac9922 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostReputation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostReputation.cs
@@ -47,7 +47,7 @@ public int? Score
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostReputation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostReputation();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.HostReputationClassification>("classification", Classification);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostReputationRule>("rules", Rules);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostReputationRule.cs b/src/Microsoft.Graph/Generated/Models/Security/HostReputationRule.cs
index 686d7ce892f..a1da0afea6d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostReputationRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostReputationRule.cs
@@ -106,7 +106,7 @@ public HostReputationRule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.HostReputationRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostReputationRule();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificate.cs b/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificate.cs
index 738214dfa71..fe9b106f1c1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificate.cs
@@ -86,7 +86,7 @@ public HostSslCertificate() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostSslCertificate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostSslCertificate();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Host>("host", Host);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificateCollectionResponse.cs
index 5261adcefb3..eaed6560a32 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HostSslCertificateCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostSslCertificateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostSslCertificateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostSslCertificate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificatePort.cs b/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificatePort.cs
index a0c920e34da..e5a7d616c10 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificatePort.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostSslCertificatePort.cs
@@ -70,7 +70,7 @@ public HostSslCertificatePort()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.HostSslCertificatePort CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostSslCertificatePort();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteDateTimeOffsetValue("lastSeenDateTime", LastSeenDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostTracker.cs b/src/Microsoft.Graph/Generated/Models/Security/HostTracker.cs
index 319a0c666f7..7fc2e637609 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostTracker.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostTracker.cs
@@ -86,7 +86,7 @@ public HostTracker() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostTracker CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostTracker();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Host>("host", Host);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HostTrackerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/HostTrackerCollectionResponse.cs
index 75c08a8be56..f7c11b20040 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HostTrackerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HostTrackerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class HostTrackerCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.HostTrackerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HostTrackerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HostTracker>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Hostname.cs b/src/Microsoft.Graph/Generated/Models/Security/Hostname.cs
index 2c30b313fd8..9d64cbde269 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Hostname.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Hostname.cs
@@ -58,7 +58,7 @@ public Hostname() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Hostname CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Hostname();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("registrant", Registrant);
             writer.WriteStringValue("registrar", Registrar);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HuntingQueryResults.cs b/src/Microsoft.Graph/Generated/Models/Security/HuntingQueryResults.cs
index 65533878412..b2490d2257f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HuntingQueryResults.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HuntingQueryResults.cs
@@ -84,7 +84,7 @@ public HuntingQueryResults()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.HuntingQueryResults CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HuntingQueryResults();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HuntingRowResult>("results", Results);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.SinglePropertySchema>("schema", Schema);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/HuntingRowResult.cs b/src/Microsoft.Graph/Generated/Models/Security/HuntingRowResult.cs
index 74d2cccbad5..59144682e00 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/HuntingRowResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/HuntingRowResult.cs
@@ -52,7 +52,7 @@ public HuntingRowResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.HuntingRowResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.HuntingRowResult();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Hyperlink.cs b/src/Microsoft.Graph/Generated/Models/Security/Hyperlink.cs
index 2c95978613e..11daec509d4 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Hyperlink.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Hyperlink.cs
@@ -84,7 +84,7 @@ public Hyperlink()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.Hyperlink CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Hyperlink();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("url", Url);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IdentityContainer.cs b/src/Microsoft.Graph/Generated/Models/Security/IdentityContainer.cs
index 0268d2ca6ba..c6561870b95 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IdentityContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IdentityContainer.cs
@@ -51,7 +51,7 @@ public partial class IdentityContainer : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IdentityContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IdentityContainer();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.HealthIssue>("healthIssues", HealthIssues);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Sensor>("sensors", Sensors);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Incident.cs b/src/Microsoft.Graph/Generated/Models/Security/Incident.cs
index 3f719c82d09..3beaaf97c87 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Incident.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Incident.cs
@@ -263,7 +263,7 @@ public string TenantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Incident CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Incident();
         }
         /// <summary>
@@ -301,7 +301,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Alert>("alerts", Alerts);
             writer.WriteStringValue("assignedTo", AssignedTo);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IncidentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/IncidentCollectionResponse.cs
index f0e0cfb384b..4399275bc77 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IncidentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IncidentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IncidentCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IncidentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IncidentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Incident>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Indicator.cs b/src/Microsoft.Graph/Generated/Models/Security/Indicator.cs
index 1f5b8fba437..e648638a281 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Indicator.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Indicator.cs
@@ -41,7 +41,7 @@ public partial class Indicator : global::Microsoft.Graph.Models.Entity, IParsabl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Indicator CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -68,7 +68,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Artifact>("artifact", Artifact);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.IndicatorSource>("source", Source);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfile.cs b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfile.cs
index 840da645182..7f105c66de4 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfile.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfile.cs
@@ -159,7 +159,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IntelligenceProfile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IntelligenceProfile();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("aliases", Aliases);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.IntelligenceProfileCountryOrRegionOfOrigin>("countriesOrRegionsOfOrigin", CountriesOrRegionsOfOrigin);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCollectionResponse.cs
index f5d069c3f72..732bf37d5bb 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IntelligenceProfileCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IntelligenceProfileCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IntelligenceProfileCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.IntelligenceProfile>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCountryOrRegionOfOrigin.cs b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCountryOrRegionOfOrigin.cs
index 19acf5b2e9f..e8e165626ff 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCountryOrRegionOfOrigin.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileCountryOrRegionOfOrigin.cs
@@ -84,7 +84,7 @@ public IntelligenceProfileCountryOrRegionOfOrigin()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.IntelligenceProfileCountryOrRegionOfOrigin CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IntelligenceProfileCountryOrRegionOfOrigin();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("label", Label);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicator.cs b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicator.cs
index 79f236619e0..cf5c2d58c51 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicator.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicator.cs
@@ -38,7 +38,7 @@ public IntelligenceProfileIndicator() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator();
         }
         /// <summary>
@@ -59,7 +59,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteDateTimeOffsetValue("lastSeenDateTime", LastSeenDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicatorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicatorCollectionResponse.cs
index 1840bb158a6..62000319ff5 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicatorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IntelligenceProfileIndicatorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class IntelligenceProfileIndicatorCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicatorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicatorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IoTDeviceEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/IoTDeviceEvidence.cs
index e0d1b7b8900..d462ea1163d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IoTDeviceEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IoTDeviceEvidence.cs
@@ -402,7 +402,7 @@ public IoTDeviceEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IoTDeviceEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IoTDeviceEvidence();
         }
         /// <summary>
@@ -447,7 +447,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("deviceId", DeviceId);
             writer.WriteStringValue("deviceName", DeviceName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IpAddress.cs b/src/Microsoft.Graph/Generated/Models/Security/IpAddress.cs
index a5ce26702b4..1d654fc979b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IpAddress.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IpAddress.cs
@@ -90,7 +90,7 @@ public IpAddress() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IpAddress CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IpAddress();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.AutonomousSystem>("autonomousSystem", AutonomousSystem);
             writer.WriteStringValue("countryOrRegion", CountryOrRegion);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/IpEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/IpEvidence.cs
index ff3e12d8d6e..a94207be3a1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/IpEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/IpEvidence.cs
@@ -90,7 +90,7 @@ public IpEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.IpEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.IpEvidence();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("countryLetterCode", CountryLetterCode);
             writer.WriteStringValue("ipAddress", IpAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesClusterEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesClusterEvidence.cs
index 1d2245ba8e1..005991ea5aa 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesClusterEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesClusterEvidence.cs
@@ -96,7 +96,7 @@ public KubernetesClusterEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.KubernetesClusterEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesClusterEvidence();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.AlertEvidence>("cloudResource", CloudResource);
             writer.WriteStringValue("distribution", Distribution);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesControllerEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesControllerEvidence.cs
index dab1e6481b0..59eee69913a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesControllerEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesControllerEvidence.cs
@@ -90,7 +90,7 @@ public KubernetesControllerEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.KubernetesControllerEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesControllerEvidence();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Dictionary>("labels", Labels);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesNamespaceEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesNamespaceEvidence.cs
index b55e276a9d1..2a022babb27 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesNamespaceEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesNamespaceEvidence.cs
@@ -74,7 +74,7 @@ public KubernetesNamespaceEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.KubernetesNamespaceEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesNamespaceEvidence();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.KubernetesClusterEvidence>("cluster", Cluster);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Dictionary>("labels", Labels);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesPodEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesPodEvidence.cs
index 416c3b5997e..4fcbf3c32aa 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesPodEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesPodEvidence.cs
@@ -170,7 +170,7 @@ public KubernetesPodEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.KubernetesPodEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesPodEvidence();
         }
         /// <summary>
@@ -198,7 +198,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.ContainerEvidence>("containers", Containers);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.KubernetesControllerEvidence>("controller", Controller);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesSecretEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesSecretEvidence.cs
index f5bd4e1215e..343a16272d3 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesSecretEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesSecretEvidence.cs
@@ -74,7 +74,7 @@ public KubernetesSecretEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.KubernetesSecretEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesSecretEvidence();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.KubernetesNamespaceEvidence>("namespace", Namespace);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceAccountEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceAccountEvidence.cs
index 40f83a6e8b2..7b4066f22de 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceAccountEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceAccountEvidence.cs
@@ -58,7 +58,7 @@ public KubernetesServiceAccountEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.KubernetesServiceAccountEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesServiceAccountEvidence();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.KubernetesNamespaceEvidence>("namespace", Namespace);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceEvidence.cs
index 33b261ec9fe..144e0e41c9d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesServiceEvidence.cs
@@ -144,7 +144,7 @@ public KubernetesServiceEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.KubernetesServiceEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesServiceEvidence();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.IpEvidence>("clusterIP", ClusterIP);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.IpEvidence>("externalIPs", ExternalIPs);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/KubernetesServicePort.cs b/src/Microsoft.Graph/Generated/Models/Security/KubernetesServicePort.cs
index da07249a61b..411a19b7659 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/KubernetesServicePort.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/KubernetesServicePort.cs
@@ -118,7 +118,7 @@ public KubernetesServicePort()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.KubernetesServicePort CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.KubernetesServicePort();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appProtocol", AppProtocol);
             writer.WriteStringValue("name", Name);
             writer.WriteIntValue("nodePort", NodePort);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/LabelsRoot.cs b/src/Microsoft.Graph/Generated/Models/Security/LabelsRoot.cs
index b1e79e0aae0..1112f3470eb 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/LabelsRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/LabelsRoot.cs
@@ -115,7 +115,7 @@ public partial class LabelsRoot : global::Microsoft.Graph.Models.Entity, IParsab
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.LabelsRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.LabelsRoot();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.AuthorityTemplate>("authorities", Authorities);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.CategoryTemplate>("categories", Categories);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/LoggedOnUser.cs b/src/Microsoft.Graph/Generated/Models/Security/LoggedOnUser.cs
index acb6bf9713a..cb3e9f55573 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/LoggedOnUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/LoggedOnUser.cs
@@ -84,7 +84,7 @@ public LoggedOnUser()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.LoggedOnUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.LoggedOnUser();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("accountName", AccountName);
             writer.WriteStringValue("domainName", DomainName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/MailClusterEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/MailClusterEvidence.cs
index 739c8169c48..28e8c0b97d9 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/MailClusterEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/MailClusterEvidence.cs
@@ -112,7 +112,7 @@ public MailClusterEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.MailClusterEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.MailClusterEvidence();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("clusterBy", ClusterBy);
             writer.WriteStringValue("clusterByValue", ClusterByValue);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/MailboxConfigurationEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/MailboxConfigurationEvidence.cs
index 6a11f64dc25..891c81060ad 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/MailboxConfigurationEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/MailboxConfigurationEvidence.cs
@@ -102,7 +102,7 @@ public MailboxConfigurationEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.MailboxConfigurationEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.MailboxConfigurationEvidence();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("configurationId", ConfigurationId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.MailboxConfigurationType>("configurationType", ConfigurationType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/MailboxEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/MailboxEvidence.cs
index af859175d35..70062ae0311 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/MailboxEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/MailboxEvidence.cs
@@ -90,7 +90,7 @@ public MailboxEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.MailboxEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.MailboxEvidence();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("primaryAddress", PrimaryAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/MalwareEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/MalwareEvidence.cs
index 30dcccc112b..27d220911dd 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/MalwareEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/MalwareEvidence.cs
@@ -90,7 +90,7 @@ public MalwareEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.MalwareEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.MalwareEvidence();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("category", Category);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.FileEvidence>("files", Files);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/NetworkAdapter.cs b/src/Microsoft.Graph/Generated/Models/Security/NetworkAdapter.cs
index 4e91fac8362..306a6e139f1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/NetworkAdapter.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/NetworkAdapter.cs
@@ -41,7 +41,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.NetworkAdapter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.NetworkAdapter();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/NetworkConnectionEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/NetworkConnectionEvidence.cs
index a586cb4d0a4..3dcb0e9bb3b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/NetworkConnectionEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/NetworkConnectionEvidence.cs
@@ -76,7 +76,7 @@ public NetworkConnectionEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.NetworkConnectionEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.NetworkConnectionEvidence();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.IpEvidence>("destinationAddress", DestinationAddress);
             writer.WriteIntValue("destinationPort", DestinationPort);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/NicEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/NicEvidence.cs
index 8f215d99702..2d16bd9f6be 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/NicEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/NicEvidence.cs
@@ -74,7 +74,7 @@ public NicEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.NicEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.NicEvidence();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.IpEvidence>("ipAddress", IpAddress);
             writer.WriteStringValue("macAddress", MacAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/OauthApplicationEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/OauthApplicationEvidence.cs
index 3dd78dc3010..260627ad6bc 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/OauthApplicationEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/OauthApplicationEvidence.cs
@@ -90,7 +90,7 @@ public OauthApplicationEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.OauthApplicationEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.OauthApplicationEvidence();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appId", AppId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/OcrSettings.cs b/src/Microsoft.Graph/Generated/Models/Security/OcrSettings.cs
index 881cbc9dfea..bf8dec000ed 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/OcrSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/OcrSettings.cs
@@ -70,7 +70,7 @@ public OcrSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.OcrSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.OcrSettings();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteIntValue("maxImageSize", MaxImageSize);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecord.cs b/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecord.cs
index 3c4fad8306d..05f2ef73ec0 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecord.cs
@@ -92,7 +92,7 @@ public PassiveDnsRecord() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.PassiveDnsRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.PassiveDnsRecord();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Artifact>("artifact", Artifact);
             writer.WriteDateTimeOffsetValue("collectedDateTime", CollectedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecordCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecordCollectionResponse.cs
index c1c1a03bff1..1ea4b89825e 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecordCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/PassiveDnsRecordCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class PassiveDnsRecordCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.PassiveDnsRecordCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.PassiveDnsRecordCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.PassiveDnsRecord>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ProcessEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/ProcessEvidence.cs
index bb1853f6ec8..a193fc146f1 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ProcessEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ProcessEvidence.cs
@@ -136,7 +136,7 @@ public ProcessEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ProcessEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ProcessEvidence();
         }
         /// <summary>
@@ -165,7 +165,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.DetectionStatus>("detectionStatus", DetectionStatus);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.FileDetails>("imageFile", ImageFile);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RedundancyDetectionSettings.cs b/src/Microsoft.Graph/Generated/Models/Security/RedundancyDetectionSettings.cs
index 2505d1468fe..cd473614eff 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RedundancyDetectionSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RedundancyDetectionSettings.cs
@@ -76,7 +76,7 @@ public RedundancyDetectionSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.RedundancyDetectionSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RedundancyDetectionSettings();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteIntValue("maxWords", MaxWords);
             writer.WriteIntValue("minWords", MinWords);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RegistryKeyEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/RegistryKeyEvidence.cs
index cdbbf2cca71..a6c39aabc05 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RegistryKeyEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RegistryKeyEvidence.cs
@@ -58,7 +58,7 @@ public RegistryKeyEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RegistryKeyEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RegistryKeyEvidence();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("registryHive", RegistryHive);
             writer.WriteStringValue("registryKey", RegistryKey);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RegistryValueEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/RegistryValueEvidence.cs
index ec6da1a0349..5be17c151df 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RegistryValueEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RegistryValueEvidence.cs
@@ -122,7 +122,7 @@ public RegistryValueEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RegistryValueEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RegistryValueEvidence();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("mdeDeviceId", MdeDeviceId);
             writer.WriteStringValue("registryHive", RegistryHive);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ReportFileMetadata.cs b/src/Microsoft.Graph/Generated/Models/Security/ReportFileMetadata.cs
index c6771a7bf9c..2b7bc947fcd 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ReportFileMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ReportFileMetadata.cs
@@ -90,7 +90,7 @@ public ReportFileMetadata()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.ReportFileMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ReportFileMetadata();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("downloadUrl", DownloadUrl);
             writer.WriteStringValue("fileName", FileName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ResourceAccessEvent.cs b/src/Microsoft.Graph/Generated/Models/Security/ResourceAccessEvent.cs
index fd519fc7150..4b1ebe2ef7d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ResourceAccessEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ResourceAccessEvent.cs
@@ -106,7 +106,7 @@ public ResourceAccessEvent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.ResourceAccessEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ResourceAccessEvent();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("accessDateTime", AccessDateTime);
             writer.WriteStringValue("accountId", AccountId);
             writer.WriteStringValue("ipAddress", IpAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionDuration.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionDuration.cs
index b8b0de9bddf..5414470a174 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionDuration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionDuration.cs
@@ -52,7 +52,7 @@ public RetentionDuration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.RetentionDuration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationForever.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationForever.cs
index b584d1efcae..2cabf6649d9 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationForever.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationForever.cs
@@ -26,7 +26,7 @@ public RetentionDurationForever() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionDurationForever CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionDurationForever();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationInDays.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationInDays.cs
index 5740f6caf59..4a1c6201f42 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationInDays.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionDurationInDays.cs
@@ -32,7 +32,7 @@ public RetentionDurationInDays() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionDurationInDays CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionDurationInDays();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("days", Days);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionEvent.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionEvent.cs
index e5195fd49a2..a41558e06f2 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionEvent.cs
@@ -171,7 +171,7 @@ public DateTimeOffset? LastStatusUpdateDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionEvent();
         }
         /// <summary>
@@ -202,7 +202,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventCollectionResponse.cs
index a6645472ab3..a071a4cc197 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RetentionEventCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionEventCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionEventCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.RetentionEvent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventStatus.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventStatus.cs
index d5caad4758a..75ab8e66e56 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventStatus.cs
@@ -74,7 +74,7 @@ public RetentionEventStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.RetentionEventStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionEventStatus();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.EventStatusType>("status", Status);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventType.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventType.cs
index 1e7f5a331d7..610704d0546 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventType.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventType.cs
@@ -95,7 +95,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionEventType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionEventType();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventTypeCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventTypeCollectionResponse.cs
index 57ee3566693..6550d4d80b7 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionEventTypeCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionEventTypeCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RetentionEventTypeCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionEventTypeCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionEventTypeCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.RetentionEventType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionLabel.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionLabel.cs
index 975b41076f6..dc47ecb6319 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionLabel.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionLabel.cs
@@ -221,7 +221,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionLabel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionLabel();
         }
         /// <summary>
@@ -257,7 +257,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.ActionAfterRetentionPeriod>("actionAfterRetentionPeriod", ActionAfterRetentionPeriod);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.BehaviorDuringRetentionPeriod>("behaviorDuringRetentionPeriod", BehaviorDuringRetentionPeriod);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/RetentionLabelCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/RetentionLabelCollectionResponse.cs
index 054a1a72924..bb450595b4d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/RetentionLabelCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/RetentionLabelCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RetentionLabelCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.RetentionLabelCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.RetentionLabelCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.RetentionLabel>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SasTokenEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/SasTokenEvidence.cs
index f9576470892..4846a3bcfc0 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SasTokenEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SasTokenEvidence.cs
@@ -166,7 +166,7 @@ public SasTokenEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SasTokenEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SasTokenEvidence();
         }
         /// <summary>
@@ -195,7 +195,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("allowedIpAddresses", AllowedIpAddresses);
             writer.WriteCollectionOfPrimitiveValues<string>("allowedResourceTypes", AllowedResourceTypes);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Search.cs b/src/Microsoft.Graph/Generated/Models/Security/Search.cs
index 50c555642ad..2ffda8972f5 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Search.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Search.cs
@@ -111,7 +111,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Search CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -143,7 +143,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("contentQuery", ContentQuery);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Security.cs b/src/Microsoft.Graph/Generated/Models/Security/Security.cs
index b50770b0c93..221ecccc16b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Security.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Security.cs
@@ -243,7 +243,7 @@ public partial class Security : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Security CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Security();
         }
         /// <summary>
@@ -276,7 +276,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Alert>("alerts", Alerts);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Alert>("alerts_v2", AlertsV2);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SecurityGroupEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/SecurityGroupEvidence.cs
index 30e0b016183..a384b706aec 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SecurityGroupEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SecurityGroupEvidence.cs
@@ -58,7 +58,7 @@ public SecurityGroupEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SecurityGroupEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SecurityGroupEvidence();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("securityGroupId", SecurityGroupId);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Sensor.cs b/src/Microsoft.Graph/Generated/Models/Security/Sensor.cs
index bc143226fa6..486284cb773 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Sensor.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Sensor.cs
@@ -129,7 +129,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Sensor CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Sensor();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.DeploymentStatus>("deploymentStatus", DeploymentStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SensorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/SensorCollectionResponse.cs
index d4813ef072f..a8b59132233 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SensorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SensorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SensorCollectionResponse : global::Microsoft.Graph.Models.B
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SensorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SensorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Sensor>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SensorDeploymentPackage.cs b/src/Microsoft.Graph/Generated/Models/Security/SensorDeploymentPackage.cs
index f280cf26065..ae2361882e8 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SensorDeploymentPackage.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SensorDeploymentPackage.cs
@@ -84,7 +84,7 @@ public SensorDeploymentPackage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.SensorDeploymentPackage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SensorDeploymentPackage();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("downloadUrl", DownloadUrl);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("version", Version);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SensorSettings.cs b/src/Microsoft.Graph/Generated/Models/Security/SensorSettings.cs
index b405d59ff26..6f53fc6d84a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SensorSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SensorSettings.cs
@@ -106,7 +106,7 @@ public SensorSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.SensorSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SensorSettings();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteCollectionOfPrimitiveValues<string>("domainControllerDnsNames", DomainControllerDnsNames);
             writer.WriteBoolValue("isDelayedDeploymentEnabled", IsDelayedDeploymentEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ServicePrincipalEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/ServicePrincipalEvidence.cs
index e431e7dea6b..a00ea121f61 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ServicePrincipalEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ServicePrincipalEvidence.cs
@@ -112,7 +112,7 @@ public ServicePrincipalEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ServicePrincipalEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ServicePrincipalEvidence();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appId", AppId);
             writer.WriteStringValue("appOwnerTenantId", AppOwnerTenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SinglePropertySchema.cs b/src/Microsoft.Graph/Generated/Models/Security/SinglePropertySchema.cs
index 8e28881d30b..da1447a5288 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SinglePropertySchema.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SinglePropertySchema.cs
@@ -84,7 +84,7 @@ public SinglePropertySchema()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.SinglePropertySchema CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SinglePropertySchema();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SiteSource.cs b/src/Microsoft.Graph/Generated/Models/Security/SiteSource.cs
index a1d7f050e9d..45e9d8079fb 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SiteSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SiteSource.cs
@@ -42,7 +42,7 @@ public SiteSource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SiteSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SiteSource();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Site>("site", Site);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SiteSourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/SiteSourceCollectionResponse.cs
index e88b2e54d4d..005674fbfd0 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SiteSourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SiteSourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SiteSourceCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SiteSourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SiteSourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.SiteSource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SslCertificate.cs b/src/Microsoft.Graph/Generated/Models/Security/SslCertificate.cs
index 8124226d24a..6e8ebe6222b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SslCertificate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SslCertificate.cs
@@ -146,7 +146,7 @@ public SslCertificate() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SslCertificate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SslCertificate();
         }
         /// <summary>
@@ -175,7 +175,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("fingerprint", Fingerprint);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SslCertificateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/SslCertificateCollectionResponse.cs
index 9c378363d41..3d9c3780727 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SslCertificateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SslCertificateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SslCertificateCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SslCertificateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SslCertificateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.SslCertificate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SslCertificateEntity.cs b/src/Microsoft.Graph/Generated/Models/Security/SslCertificateEntity.cs
index 606bc2d38a8..3bb9214a613 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SslCertificateEntity.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SslCertificateEntity.cs
@@ -196,7 +196,7 @@ public SslCertificateEntity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.SslCertificateEntity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SslCertificateEntity();
         }
         /// <summary>
@@ -225,7 +225,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PhysicalAddress>("address", Address);
             writer.WriteCollectionOfPrimitiveValues<string>("alternateNames", AlternateNames);
             writer.WriteStringValue("commonName", CommonName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/StreamObject.cs b/src/Microsoft.Graph/Generated/Models/Security/StreamObject.cs
index 8aff4c9eb1c..8c61ad67193 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/StreamObject.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/StreamObject.cs
@@ -68,7 +68,7 @@ public StreamObject()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.StreamObject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.StreamObject();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplate.cs b/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplate.cs
index 44e575205ba..affcd3c781d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplate.cs
@@ -19,7 +19,7 @@ public partial class SubcategoryTemplate : global::Microsoft.Graph.Models.Securi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SubcategoryTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SubcategoryTemplate();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplateCollectionResponse.cs
index 020c20dbfb3..714bb41c33e 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SubcategoryTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SubcategoryTemplateCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SubcategoryTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SubcategoryTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.SubcategoryTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Subdomain.cs b/src/Microsoft.Graph/Generated/Models/Security/Subdomain.cs
index 6f179dbe059..18656f40f5f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Subdomain.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Subdomain.cs
@@ -41,7 +41,7 @@ public DateTimeOffset? FirstSeenDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Subdomain CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Subdomain();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Host>("host", Host);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SubdomainCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/SubdomainCollectionResponse.cs
index 8e459eb8079..3cb0257f09f 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SubdomainCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SubdomainCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SubdomainCollectionResponse : global::Microsoft.Graph.Model
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SubdomainCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SubdomainCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Subdomain>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/SubmissionMailEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/SubmissionMailEvidence.cs
index 683465320ff..ffae5add24d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/SubmissionMailEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/SubmissionMailEvidence.cs
@@ -160,7 +160,7 @@ public SubmissionMailEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.SubmissionMailEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.SubmissionMailEvidence();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("networkMessageId", NetworkMessageId);
             writer.WriteStringValue("recipient", Recipient);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Tag.cs b/src/Microsoft.Graph/Generated/Models/Security/Tag.cs
index e1f9c159cb8..c0958f1167b 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Tag.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Tag.cs
@@ -73,7 +73,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Tag CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("createdBy", CreatedBy);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/TeamsMessageEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/TeamsMessageEvidence.cs
index f0d941eb316..3bf3c668394 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/TeamsMessageEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/TeamsMessageEvidence.cs
@@ -330,7 +330,7 @@ public TeamsMessageEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.TeamsMessageEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.TeamsMessageEvidence();
         }
         /// <summary>
@@ -373,7 +373,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("campaignId", CampaignId);
             writer.WriteStringValue("channelId", ChannelId);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/ThreatIntelligence.cs b/src/Microsoft.Graph/Generated/Models/Security/ThreatIntelligence.cs
index a11030ad0d2..cbae1280b7c 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/ThreatIntelligence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/ThreatIntelligence.cs
@@ -291,7 +291,7 @@ public partial class ThreatIntelligence : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.ThreatIntelligence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.ThreatIntelligence();
         }
         /// <summary>
@@ -327,7 +327,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.ArticleIndicator>("articleIndicators", ArticleIndicators);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Article>("articles", Articles);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/TopicModelingSettings.cs b/src/Microsoft.Graph/Generated/Models/Security/TopicModelingSettings.cs
index 9219d596603..e79a98c5164 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/TopicModelingSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/TopicModelingSettings.cs
@@ -76,7 +76,7 @@ public TopicModelingSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.TopicModelingSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.TopicModelingSettings();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("dynamicallyAdjustTopicCount", DynamicallyAdjustTopicCount);
             writer.WriteBoolValue("ignoreNumbers", IgnoreNumbers);
             writer.WriteBoolValue("isEnabled", IsEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/TriggerTypesRoot.cs b/src/Microsoft.Graph/Generated/Models/Security/TriggerTypesRoot.cs
index e7c789b1e3c..5dc2198db70 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/TriggerTypesRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/TriggerTypesRoot.cs
@@ -35,7 +35,7 @@ public partial class TriggerTypesRoot : global::Microsoft.Graph.Models.Entity, I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.TriggerTypesRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.TriggerTypesRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.RetentionEventType>("retentionEventTypes", RetentionEventTypes);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/TriggersRoot.cs b/src/Microsoft.Graph/Generated/Models/Security/TriggersRoot.cs
index 5cf97b7b841..0d9bb5bed5d 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/TriggersRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/TriggersRoot.cs
@@ -35,7 +35,7 @@ public partial class TriggersRoot : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.TriggersRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.TriggersRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.RetentionEvent>("retentionEvents", RetentionEvents);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UnclassifiedArtifact.cs b/src/Microsoft.Graph/Generated/Models/Security/UnclassifiedArtifact.cs
index dd87ee56686..8d3ace9d721 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UnclassifiedArtifact.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UnclassifiedArtifact.cs
@@ -58,7 +58,7 @@ public UnclassifiedArtifact() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.UnclassifiedArtifact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UnclassifiedArtifact();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("kind", Kind);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSource.cs b/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSource.cs
index 9c528b08ce3..3392b8d5c8a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSource.cs
@@ -48,7 +48,7 @@ public UnifiedGroupSource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.UnifiedGroupSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UnifiedGroupSource();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Group>("group", Group);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.SourceType>("includedSources", IncludedSources);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSourceCollectionResponse.cs
index fdd1bc79baf..3e5506724ea 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UnifiedGroupSourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedGroupSourceCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.UnifiedGroupSourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UnifiedGroupSourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.UnifiedGroupSource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UrlEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/UrlEvidence.cs
index d6af259800b..57732d78a68 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UrlEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UrlEvidence.cs
@@ -42,7 +42,7 @@ public UrlEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.UrlEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UrlEvidence();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("url", Url);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UserAccount.cs b/src/Microsoft.Graph/Generated/Models/Security/UserAccount.cs
index c7daf534a5f..b7de6505f87 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UserAccount.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UserAccount.cs
@@ -164,7 +164,7 @@ public UserAccount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.UserAccount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UserAccount();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("accountName", AccountName);
             writer.WriteStringValue("azureAdUserId", AzureAdUserId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UserEvidence.cs b/src/Microsoft.Graph/Generated/Models/Security/UserEvidence.cs
index f95e792db86..ef1e6e3da05 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UserEvidence.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UserEvidence.cs
@@ -58,7 +58,7 @@ public UserEvidence() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.UserEvidence CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UserEvidence();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.StreamObject>("stream", Stream);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.UserAccount>("userAccount", UserAccount);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UserSource.cs b/src/Microsoft.Graph/Generated/Models/Security/UserSource.cs
index 32d6a52bec1..174f37e6596 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UserSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UserSource.cs
@@ -64,7 +64,7 @@ public UserSource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.UserSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UserSource();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("email", Email);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.SourceType>("includedSources", IncludedSources);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/UserSourceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/UserSourceCollectionResponse.cs
index 8447b080acf..8ce7fd60f47 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/UserSourceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/UserSourceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserSourceCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.UserSourceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.UserSourceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.UserSource>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/VmMetadata.cs b/src/Microsoft.Graph/Generated/Models/Security/VmMetadata.cs
index 6dfc3cde503..2bc4787be11 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/VmMetadata.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/VmMetadata.cs
@@ -106,7 +106,7 @@ public VmMetadata()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.VmMetadata CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.VmMetadata();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.VmCloudProvider>("cloudProvider", CloudProvider);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("resourceId", ResourceId);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/Vulnerability.cs b/src/Microsoft.Graph/Generated/Models/Security/Vulnerability.cs
index ab21025bff6..b59b2347b24 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/Vulnerability.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/Vulnerability.cs
@@ -211,7 +211,7 @@ public DateTimeOffset? PublishedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.Vulnerability CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.Vulnerability();
         }
         /// <summary>
@@ -247,7 +247,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("activeExploitsObserved", ActiveExploitsObserved);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Article>("articles", Articles);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityCollectionResponse.cs
index d9ac886c841..65a8d107f69 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VulnerabilityCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.VulnerabilityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.VulnerabilityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.Vulnerability>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponent.cs b/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponent.cs
index 6566d47c1ce..5471b1337bd 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponent.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponent.cs
@@ -35,7 +35,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.VulnerabilityComponent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.VulnerabilityComponent();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponentCollectionResponse.cs
index 555f3a99e33..5d836d7ad34 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/VulnerabilityComponentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VulnerabilityComponentCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.VulnerabilityComponentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.VulnerabilityComponentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.VulnerabilityComponent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/WhoisBaseRecord.cs b/src/Microsoft.Graph/Generated/Models/Security/WhoisBaseRecord.cs
index 2f382cd4784..a44a7376b48 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/WhoisBaseRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/WhoisBaseRecord.cs
@@ -257,7 +257,7 @@ public string WhoisServer
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.WhoisBaseRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -300,7 +300,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.WhoisContact>("abuse", Abuse);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.WhoisContact>("admin", Admin);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/WhoisContact.cs b/src/Microsoft.Graph/Generated/Models/Security/WhoisContact.cs
index 090a352b8bb..70eb1b6068a 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/WhoisContact.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/WhoisContact.cs
@@ -148,7 +148,7 @@ public WhoisContact()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.WhoisContact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.WhoisContact();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PhysicalAddress>("address", Address);
             writer.WriteStringValue("email", Email);
             writer.WriteStringValue("fax", Fax);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecord.cs b/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecord.cs
index d62d7d6e3d4..8049b7cc176 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecord.cs
@@ -26,7 +26,7 @@ public WhoisHistoryRecord() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.WhoisHistoryRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.WhoisHistoryRecord();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecordCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecordCollectionResponse.cs
index 82a556a7de5..b17277a4e93 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecordCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/WhoisHistoryRecordCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WhoisHistoryRecordCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.WhoisHistoryRecordCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.WhoisHistoryRecordCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.WhoisHistoryRecord>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/WhoisNameserver.cs b/src/Microsoft.Graph/Generated/Models/Security/WhoisNameserver.cs
index b7db4839923..d4a430c7e82 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/WhoisNameserver.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/WhoisNameserver.cs
@@ -80,7 +80,7 @@ public WhoisNameserver()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Security.WhoisNameserver CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.WhoisNameserver();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("firstSeenDateTime", FirstSeenDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Security.Host>("host", Host);
             writer.WriteDateTimeOffsetValue("lastSeenDateTime", LastSeenDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/Security/WhoisRecord.cs b/src/Microsoft.Graph/Generated/Models/Security/WhoisRecord.cs
index d909ae999e5..cd17b821ecc 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/WhoisRecord.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/WhoisRecord.cs
@@ -42,7 +42,7 @@ public WhoisRecord() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.WhoisRecord CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.WhoisRecord();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.WhoisHistoryRecord>("history", History);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Security/WhoisRecordCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Security/WhoisRecordCollectionResponse.cs
index c9bfcb1e3f6..8a41a9dcee5 100644
--- a/src/Microsoft.Graph/Generated/Models/Security/WhoisRecordCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Security/WhoisRecordCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WhoisRecordCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Security.WhoisRecordCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Security.WhoisRecordCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.WhoisRecord>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SecurityReportsRoot.cs b/src/Microsoft.Graph/Generated/Models/SecurityReportsRoot.cs
index 38da30c6e7d..67d70fad65b 100644
--- a/src/Microsoft.Graph/Generated/Models/SecurityReportsRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecurityReportsRoot.cs
@@ -19,7 +19,7 @@ public partial class SecurityReportsRoot : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SecurityReportsRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecurityReportsRoot();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/SecurityResource.cs b/src/Microsoft.Graph/Generated/Models/SecurityResource.cs
index 633f01c3092..fcb9eacc121 100644
--- a/src/Microsoft.Graph/Generated/Models/SecurityResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecurityResource.cs
@@ -74,7 +74,7 @@ public SecurityResource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SecurityResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecurityResource();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("resource", Resource);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SecurityResourceType>("resourceType", ResourceType);
diff --git a/src/Microsoft.Graph/Generated/Models/SecurityVendorInformation.cs b/src/Microsoft.Graph/Generated/Models/SecurityVendorInformation.cs
index 7cc500e3d82..6ee98b04d4d 100644
--- a/src/Microsoft.Graph/Generated/Models/SecurityVendorInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SecurityVendorInformation.cs
@@ -116,7 +116,7 @@ public SecurityVendorInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SecurityVendorInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SecurityVendorInformation();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("provider", Provider);
             writer.WriteStringValue("providerVersion", ProviderVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/SelfServiceSignUpAuthenticationFlowConfiguration.cs b/src/Microsoft.Graph/Generated/Models/SelfServiceSignUpAuthenticationFlowConfiguration.cs
index 39a9cde8772..6d035253dd1 100644
--- a/src/Microsoft.Graph/Generated/Models/SelfServiceSignUpAuthenticationFlowConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/SelfServiceSignUpAuthenticationFlowConfiguration.cs
@@ -58,7 +58,7 @@ public SelfServiceSignUpAuthenticationFlowConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SelfServiceSignUpAuthenticationFlowConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SelfServiceSignUpAuthenticationFlowConfiguration();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isEnabled", IsEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/SelfSignedCertificate.cs b/src/Microsoft.Graph/Generated/Models/SelfSignedCertificate.cs
index 1d445021a71..a89d4dc2068 100644
--- a/src/Microsoft.Graph/Generated/Models/SelfSignedCertificate.cs
+++ b/src/Microsoft.Graph/Generated/Models/SelfSignedCertificate.cs
@@ -166,7 +166,7 @@ public SelfSignedCertificate()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SelfSignedCertificate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SelfSignedCertificate();
         }
         /// <summary>
@@ -195,7 +195,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("customKeyIdentifier", CustomKeyIdentifier);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/SendDtmfTonesOperation.cs b/src/Microsoft.Graph/Generated/Models/SendDtmfTonesOperation.cs
index ce23aa4e7e3..5dae29d57ad 100644
--- a/src/Microsoft.Graph/Generated/Models/SendDtmfTonesOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SendDtmfTonesOperation.cs
@@ -25,7 +25,7 @@ public partial class SendDtmfTonesOperation : global::Microsoft.Graph.Models.Com
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SendDtmfTonesOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SendDtmfTonesOperation();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SendDtmfCompletionReason>("completionReason", CompletionReason);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SensitivityLabel.cs b/src/Microsoft.Graph/Generated/Models/SensitivityLabel.cs
index 86cfde8e639..44052ae56ff 100644
--- a/src/Microsoft.Graph/Generated/Models/SensitivityLabel.cs
+++ b/src/Microsoft.Graph/Generated/Models/SensitivityLabel.cs
@@ -177,7 +177,7 @@ public string ToolTip
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SensitivityLabel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SensitivityLabel();
         }
         /// <summary>
@@ -209,7 +209,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.LabelActionSource>("actionSource", ActionSource);
             writer.WriteStringValue("autoTooltip", AutoTooltip);
diff --git a/src/Microsoft.Graph/Generated/Models/SensitivityLabelAssignment.cs b/src/Microsoft.Graph/Generated/Models/SensitivityLabelAssignment.cs
index dee297e4702..92a518b65bc 100644
--- a/src/Microsoft.Graph/Generated/Models/SensitivityLabelAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/SensitivityLabelAssignment.cs
@@ -90,7 +90,7 @@ public SensitivityLabelAssignment()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SensitivityLabelAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SensitivityLabelAssignment();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SensitivityLabelAssignmentMethod>("assignmentMethod", AssignmentMethod);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("sensitivityLabelId", SensitivityLabelId);
diff --git a/src/Microsoft.Graph/Generated/Models/SensitivityLabelCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SensitivityLabelCollectionResponse.cs
index 6362f222844..af766ad590b 100644
--- a/src/Microsoft.Graph/Generated/Models/SensitivityLabelCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SensitivityLabelCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SensitivityLabelCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SensitivityLabelCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SensitivityLabelCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SensitivityLabel>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServerProcessedContent.cs b/src/Microsoft.Graph/Generated/Models/ServerProcessedContent.cs
index 31a8e1af125..8c87bc0c30e 100644
--- a/src/Microsoft.Graph/Generated/Models/ServerProcessedContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServerProcessedContent.cs
@@ -116,7 +116,7 @@ public ServerProcessedContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ServerProcessedContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServerProcessedContent();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MetaDataKeyStringPair>("htmlStrings", HtmlStrings);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MetaDataKeyStringPair>("imageSources", ImageSources);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MetaDataKeyStringPair>("links", Links);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncement.cs b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncement.cs
index c69571fcf61..0d35e304e05 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncement.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncement.cs
@@ -67,7 +67,7 @@ public partial class ServiceAnnouncement : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceAnnouncement CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceAnnouncement();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceHealth>("healthOverviews", HealthOverviews);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceHealthIssue>("issues", Issues);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachment.cs b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachment.cs
index 2ce9419d600..61d6df49e6d 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachment.cs
@@ -79,7 +79,7 @@ public int? Size
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceAnnouncementAttachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceAnnouncementAttachment();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("content", Content);
             writer.WriteStringValue("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachmentCollectionResponse.cs
index 6464991ce0c..920120a7740 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementAttachmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServiceAnnouncementAttachmentCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceAnnouncementAttachmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceAnnouncementAttachmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceAnnouncementAttachment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementBase.cs b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementBase.cs
index ad229efa75f..bbf8e534153 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceAnnouncementBase.cs
@@ -69,7 +69,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceAnnouncementBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -99,7 +99,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.KeyValuePair>("details", Details);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceApp.cs b/src/Microsoft.Graph/Generated/Models/ServiceApp.cs
index 5bd2839d8a7..4506db6d955 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceApp.cs
@@ -75,7 +75,7 @@ public DateTimeOffset? RegistrationDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceApp();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("application", Application);
             writer.WriteDateTimeOffsetValue("effectiveDateTime", EffectiveDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServiceAppCollectionResponse.cs
index 84653baa81d..2171d2f6c0e 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServiceAppCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceHealth.cs b/src/Microsoft.Graph/Generated/Models/ServiceHealth.cs
index f62067320b8..95c1a9598c7 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceHealth.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceHealth.cs
@@ -57,7 +57,7 @@ public string Service
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceHealth CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceHealth();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceHealthIssue>("issues", Issues);
             writer.WriteStringValue("service", Service);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceHealthCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServiceHealthCollectionResponse.cs
index afeb4a0c7cc..57e8cba1e61 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceHealthCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceHealthCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServiceHealthCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceHealthCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceHealthCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceHealth>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceHealthIssue.cs b/src/Microsoft.Graph/Generated/Models/ServiceHealthIssue.cs
index 7b85e48921a..49f6419fbfd 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceHealthIssue.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceHealthIssue.cs
@@ -130,7 +130,7 @@ public ServiceHealthIssue() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceHealthIssue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceHealthIssue();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ServiceHealthClassificationType>("classification", Classification);
             writer.WriteStringValue("feature", Feature);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceHealthIssueCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServiceHealthIssueCollectionResponse.cs
index 2a668251378..30d4b34cbd6 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceHealthIssueCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceHealthIssueCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServiceHealthIssueCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceHealthIssueCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceHealthIssueCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceHealthIssue>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceHealthIssuePost.cs b/src/Microsoft.Graph/Generated/Models/ServiceHealthIssuePost.cs
index 30f9d40ce93..a3cca875224 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceHealthIssuePost.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceHealthIssuePost.cs
@@ -80,7 +80,7 @@ public ServiceHealthIssuePost()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ServiceHealthIssuePost CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceHealthIssuePost();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("description", Description);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceHostedMediaConfig.cs b/src/Microsoft.Graph/Generated/Models/ServiceHostedMediaConfig.cs
index f9d8fddfd3e..3127ac31bbd 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceHostedMediaConfig.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceHostedMediaConfig.cs
@@ -42,7 +42,7 @@ public ServiceHostedMediaConfig() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceHostedMediaConfig CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceHostedMediaConfig();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MediaInfo>("preFetchMedia", PreFetchMedia);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePlanInfo.cs b/src/Microsoft.Graph/Generated/Models/ServicePlanInfo.cs
index ec5f51fca5e..6e1e8208bbc 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePlanInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePlanInfo.cs
@@ -106,7 +106,7 @@ public ServicePlanInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ServicePlanInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePlanInfo();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appliesTo", AppliesTo);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("provisioningStatus", ProvisioningStatus);
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePrincipal.cs b/src/Microsoft.Graph/Generated/Models/ServicePrincipal.cs
index 0d7ed65cc00..c78586c99d6 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePrincipal.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePrincipal.cs
@@ -818,7 +818,7 @@ public ServicePrincipal() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServicePrincipal CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePrincipal();
         }
         /// <summary>
@@ -889,7 +889,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("accountEnabled", AccountEnabled);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AddIn>("addIns", AddIns);
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePrincipalCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServicePrincipalCollectionResponse.cs
index 5cd40c4ba1e..71b4ee65c84 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePrincipalCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePrincipalCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServicePrincipalCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServicePrincipalCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePrincipalCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServicePrincipal>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePrincipalIdentity.cs b/src/Microsoft.Graph/Generated/Models/ServicePrincipalIdentity.cs
index 122ac5b6dca..817a1a3ffb0 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePrincipalIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePrincipalIdentity.cs
@@ -42,7 +42,7 @@ public ServicePrincipalIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServicePrincipalIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePrincipalIdentity();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appId", AppId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePrincipalLockConfiguration.cs b/src/Microsoft.Graph/Generated/Models/ServicePrincipalLockConfiguration.cs
index 3d715a74b33..6c4a14cdf1d 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePrincipalLockConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePrincipalLockConfiguration.cs
@@ -82,7 +82,7 @@ public ServicePrincipalLockConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ServicePrincipalLockConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePrincipalLockConfiguration();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allProperties", AllProperties);
             writer.WriteBoolValue("credentialsWithUsageSign", CredentialsWithUsageSign);
             writer.WriteBoolValue("credentialsWithUsageVerify", CredentialsWithUsageVerify);
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetection.cs b/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetection.cs
index 6dd4421e23c..85daa665546 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetection.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetection.cs
@@ -249,7 +249,7 @@ public string Source
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServicePrincipalRiskDetection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePrincipalRiskDetection();
         }
         /// <summary>
@@ -288,7 +288,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ActivityType>("activity", Activity);
             writer.WriteDateTimeOffsetValue("activityDateTime", ActivityDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetectionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetectionCollectionResponse.cs
index d8cd5a14209..12d553e78f9 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetectionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePrincipalRiskDetectionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServicePrincipalRiskDetectionCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServicePrincipalRiskDetectionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePrincipalRiskDetectionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServicePrincipalRiskDetection>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServicePrincipalSignIn.cs b/src/Microsoft.Graph/Generated/Models/ServicePrincipalSignIn.cs
index 2e86716b075..b7fd91421b1 100644
--- a/src/Microsoft.Graph/Generated/Models/ServicePrincipalSignIn.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServicePrincipalSignIn.cs
@@ -42,7 +42,7 @@ public ServicePrincipalSignIn() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServicePrincipalSignIn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServicePrincipalSignIn();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("servicePrincipalId", ServicePrincipalId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceProvisioningError.cs b/src/Microsoft.Graph/Generated/Models/ServiceProvisioningError.cs
index a41ec5e671c..702afa59ef5 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceProvisioningError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceProvisioningError.cs
@@ -80,7 +80,7 @@ public ServiceProvisioningError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ServiceProvisioningError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -108,7 +108,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteBoolValue("isResolved", IsResolved);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceProvisioningErrorCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServiceProvisioningErrorCollectionResponse.cs
index 5863d61b647..6112dc4fe9f 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceProvisioningErrorCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceProvisioningErrorCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServiceProvisioningErrorCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceProvisioningErrorCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceProvisioningErrorCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceProvisioningError>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceProvisioningXmlError.cs b/src/Microsoft.Graph/Generated/Models/ServiceProvisioningXmlError.cs
index 033d38dc9a1..f7d3593c959 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceProvisioningXmlError.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceProvisioningXmlError.cs
@@ -42,7 +42,7 @@ public ServiceProvisioningXmlError() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceProvisioningXmlError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceProvisioningXmlError();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("errorDetail", ErrorDetail);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceStatus.cs b/src/Microsoft.Graph/Generated/Models/ServiceStatus.cs
index 66ce9088d53..bc7878b21c6 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceStatus.cs
@@ -104,7 +104,7 @@ public ServiceStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ServiceStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceStatus();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.BackupServiceConsumer>("backupServiceConsumer", BackupServiceConsumer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DisableReason>("disableReason", DisableReason);
             writer.WriteDateTimeOffsetValue("gracePeriodDateTime", GracePeriodDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdown.cs b/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdown.cs
index 9c7631b848a..0ae8b1c9d73 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdown.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdown.cs
@@ -19,7 +19,7 @@ public partial class ServiceStorageQuotaBreakdown : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdownCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdownCollectionResponse.cs
index 42efc7ec044..4e9d85ce621 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdownCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceStorageQuotaBreakdownCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServiceStorageQuotaBreakdownCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdownCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdownCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessage.cs b/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessage.cs
index 3cc67360f4c..f7569a868d3 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessage.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessage.cs
@@ -152,7 +152,7 @@ public ServiceUpdateMessage() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceUpdateMessage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceUpdateMessage();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("actionRequiredByDateTime", ActionRequiredByDateTime);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceAnnouncementAttachment>("attachments", Attachments);
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageCollectionResponse.cs
index f8d2f07afc1..aa29113f677 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ServiceUpdateMessageCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ServiceUpdateMessageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceUpdateMessageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServiceUpdateMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageViewpoint.cs b/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageViewpoint.cs
index 1b8a4016a88..00bba11230e 100644
--- a/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageViewpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/ServiceUpdateMessageViewpoint.cs
@@ -70,7 +70,7 @@ public ServiceUpdateMessageViewpoint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ServiceUpdateMessageViewpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ServiceUpdateMessageViewpoint();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isArchived", IsArchived);
             writer.WriteBoolValue("isFavorited", IsFavorited);
             writer.WriteBoolValue("isRead", IsRead);
diff --git a/src/Microsoft.Graph/Generated/Models/SettingSource.cs b/src/Microsoft.Graph/Generated/Models/SettingSource.cs
index ffadda50250..50b3b5cb8a8 100644
--- a/src/Microsoft.Graph/Generated/Models/SettingSource.cs
+++ b/src/Microsoft.Graph/Generated/Models/SettingSource.cs
@@ -90,7 +90,7 @@ public SettingSource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SettingSource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SettingSource();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummary.cs b/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummary.cs
index 50ce9c42649..189cf3d7d3e 100644
--- a/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummary.cs
@@ -94,7 +94,7 @@ public int? UnknownDeviceCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SettingStateDeviceSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SettingStateDeviceSummary();
         }
         /// <summary>
@@ -122,7 +122,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("compliantDeviceCount", CompliantDeviceCount);
             writer.WriteIntValue("conflictDeviceCount", ConflictDeviceCount);
diff --git a/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummaryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummaryCollectionResponse.cs
index 134f37d7825..3fd9b9a0eda 100644
--- a/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummaryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SettingStateDeviceSummaryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SettingStateDeviceSummaryCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SettingStateDeviceSummaryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SettingStateDeviceSummaryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SettingStateDeviceSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SettingTemplateValue.cs b/src/Microsoft.Graph/Generated/Models/SettingTemplateValue.cs
index b452acf0e9f..2f1a3a04e03 100644
--- a/src/Microsoft.Graph/Generated/Models/SettingTemplateValue.cs
+++ b/src/Microsoft.Graph/Generated/Models/SettingTemplateValue.cs
@@ -116,7 +116,7 @@ public SettingTemplateValue()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SettingTemplateValue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SettingTemplateValue();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("defaultValue", DefaultValue);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/SettingValue.cs b/src/Microsoft.Graph/Generated/Models/SettingValue.cs
index 76e6ff4e2b2..ca894bb237e 100644
--- a/src/Microsoft.Graph/Generated/Models/SettingValue.cs
+++ b/src/Microsoft.Graph/Generated/Models/SettingValue.cs
@@ -84,7 +84,7 @@ public SettingValue()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SettingValue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SettingValue();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/SharePointIdentity.cs b/src/Microsoft.Graph/Generated/Models/SharePointIdentity.cs
index a32442d4a72..df1f6bcc4cb 100644
--- a/src/Microsoft.Graph/Generated/Models/SharePointIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharePointIdentity.cs
@@ -42,7 +42,7 @@ public SharePointIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharePointIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharePointIdentity();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("loginName", LoginName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SharePointIdentitySet.cs b/src/Microsoft.Graph/Generated/Models/SharePointIdentitySet.cs
index 00fafa5fdc7..5622206ca71 100644
--- a/src/Microsoft.Graph/Generated/Models/SharePointIdentitySet.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharePointIdentitySet.cs
@@ -74,7 +74,7 @@ public SharePointIdentitySet() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharePointIdentitySet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharePointIdentitySet();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("group", Group);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SharePointIdentity>("siteGroup", SiteGroup);
diff --git a/src/Microsoft.Graph/Generated/Models/SharePointOneDriveOptions.cs b/src/Microsoft.Graph/Generated/Models/SharePointOneDriveOptions.cs
index 13005309dd4..6ecf35b9f01 100644
--- a/src/Microsoft.Graph/Generated/Models/SharePointOneDriveOptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharePointOneDriveOptions.cs
@@ -58,7 +58,7 @@ public SharePointOneDriveOptions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SharePointOneDriveOptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharePointOneDriveOptions();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SearchContent>("includeContent", IncludeContent);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicy.cs b/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicy.cs
index c06a4e96b77..59f4da79aa5 100644
--- a/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicy.cs
@@ -74,7 +74,7 @@ public SharePointProtectionPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharePointProtectionPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharePointProtectionPolicy();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteProtectionRule>("siteInclusionRules", SiteInclusionRules);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteProtectionUnit>("siteProtectionUnits", SiteProtectionUnits);
diff --git a/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicyCollectionResponse.cs
index bb914fbab8b..656210ea6f8 100644
--- a/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharePointProtectionPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SharePointProtectionPolicyCollectionResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharePointProtectionPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharePointProtectionPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SharePointProtectionPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SharePointRestoreSession.cs b/src/Microsoft.Graph/Generated/Models/SharePointRestoreSession.cs
index 074fb00338a..781bc16d140 100644
--- a/src/Microsoft.Graph/Generated/Models/SharePointRestoreSession.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharePointRestoreSession.cs
@@ -58,7 +58,7 @@ public SharePointRestoreSession() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharePointRestoreSession CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharePointRestoreSession();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteRestoreArtifact>("siteRestoreArtifacts", SiteRestoreArtifacts);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest>("siteRestoreArtifactsBulkAdditionRequests", SiteRestoreArtifactsBulkAdditionRequests);
diff --git a/src/Microsoft.Graph/Generated/Models/SharePointRestoreSessionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SharePointRestoreSessionCollectionResponse.cs
index ecf77c53229..853a67bc4b4 100644
--- a/src/Microsoft.Graph/Generated/Models/SharePointRestoreSessionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharePointRestoreSessionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SharePointRestoreSessionCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharePointRestoreSessionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharePointRestoreSessionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SharePointRestoreSession>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Shared.cs b/src/Microsoft.Graph/Generated/Models/Shared.cs
index 62deca04b7b..0518f7593c3 100644
--- a/src/Microsoft.Graph/Generated/Models/Shared.cs
+++ b/src/Microsoft.Graph/Generated/Models/Shared.cs
@@ -106,7 +106,7 @@ public Shared()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Shared CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Shared();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("owner", Owner);
             writer.WriteStringValue("scope", Scope);
diff --git a/src/Microsoft.Graph/Generated/Models/SharedDriveItem.cs b/src/Microsoft.Graph/Generated/Models/SharedDriveItem.cs
index 88067898932..f91de5375ec 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedDriveItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedDriveItem.cs
@@ -154,7 +154,7 @@ public SharedDriveItem() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharedDriveItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedDriveItem();
         }
         /// <summary>
@@ -181,7 +181,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DriveItem>("driveItem", DriveItem);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveItem>("items", Items);
diff --git a/src/Microsoft.Graph/Generated/Models/SharedDriveItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SharedDriveItemCollectionResponse.cs
index 2f844f24483..cbe4062c1b5 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedDriveItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedDriveItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SharedDriveItemCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharedDriveItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedDriveItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SharedDriveItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SharedInsight.cs b/src/Microsoft.Graph/Generated/Models/SharedInsight.cs
index aab0496be0f..48ca2a79ce2 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedInsight.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedInsight.cs
@@ -115,7 +115,7 @@ public partial class SharedInsight : global::Microsoft.Graph.Models.Entity, IPar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharedInsight CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedInsight();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SharingDetail>("lastShared", LastShared);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Entity>("lastSharedMethod", LastSharedMethod);
diff --git a/src/Microsoft.Graph/Generated/Models/SharedInsightCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SharedInsightCollectionResponse.cs
index 1e9d728fff7..5f615b54050 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedInsightCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedInsightCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SharedInsightCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharedInsightCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedInsightCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SharedInsight>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SharedPCAccountManagerPolicy.cs b/src/Microsoft.Graph/Generated/Models/SharedPCAccountManagerPolicy.cs
index 0e99aab099a..33ccb3b8daa 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedPCAccountManagerPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedPCAccountManagerPolicy.cs
@@ -77,7 +77,7 @@ public SharedPCAccountManagerPolicy()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SharedPCAccountManagerPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedPCAccountManagerPolicy();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SharedPCAccountDeletionPolicyType>("accountDeletionPolicy", AccountDeletionPolicy);
             writer.WriteIntValue("cacheAccountsAboveDiskFreePercentage", CacheAccountsAboveDiskFreePercentage);
             writer.WriteIntValue("inactiveThresholdDays", InactiveThresholdDays);
diff --git a/src/Microsoft.Graph/Generated/Models/SharedPCConfiguration.cs b/src/Microsoft.Graph/Generated/Models/SharedPCConfiguration.cs
index 66046da33f3..8dc0e090b6b 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedPCConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedPCConfiguration.cs
@@ -130,7 +130,7 @@ public SharedPCConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharedPCConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedPCConfiguration();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SharedPCAccountManagerPolicy>("accountManagerPolicy", AccountManagerPolicy);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SharedPCAllowedAccountType>("allowedAccounts", AllowedAccounts);
diff --git a/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfo.cs b/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfo.cs
index 051b173572e..9bf0c33edd2 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfo.cs
@@ -41,7 +41,7 @@ public bool? IsHostTeam
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharedWithChannelTeamInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedWithChannelTeamInfo();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("allowedMembers", AllowedMembers);
             writer.WriteBoolValue("isHostTeam", IsHostTeam);
diff --git a/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfoCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfoCollectionResponse.cs
index ca1ddc102dc..16355341091 100644
--- a/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfoCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharedWithChannelTeamInfoCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SharedWithChannelTeamInfoCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharedWithChannelTeamInfoCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharedWithChannelTeamInfoCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Sharepoint.cs b/src/Microsoft.Graph/Generated/Models/Sharepoint.cs
index 0956eb0a9e1..69923c3db6b 100644
--- a/src/Microsoft.Graph/Generated/Models/Sharepoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/Sharepoint.cs
@@ -35,7 +35,7 @@ public partial class Sharepoint : global::Microsoft.Graph.Models.Entity, IParsab
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Sharepoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Sharepoint();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SharepointSettings>("settings", Settings);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SharepointIds.cs b/src/Microsoft.Graph/Generated/Models/SharepointIds.cs
index c72574226b9..ac931d0cbd5 100644
--- a/src/Microsoft.Graph/Generated/Models/SharepointIds.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharepointIds.cs
@@ -164,7 +164,7 @@ public SharepointIds()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SharepointIds CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharepointIds();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("listId", ListId);
             writer.WriteStringValue("listItemId", ListItemId);
             writer.WriteStringValue("listItemUniqueId", ListItemUniqueId);
diff --git a/src/Microsoft.Graph/Generated/Models/SharepointSettings.cs b/src/Microsoft.Graph/Generated/Models/SharepointSettings.cs
index f96223fcb46..968b36b2855 100644
--- a/src/Microsoft.Graph/Generated/Models/SharepointSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharepointSettings.cs
@@ -273,7 +273,7 @@ public string TenantDefaultTimezone
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SharepointSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharepointSettings();
         }
         /// <summary>
@@ -321,7 +321,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<Guid?>("allowedDomainGuidsForSyncApp", AllowedDomainGuidsForSyncApp);
             writer.WriteCollectionOfPrimitiveValues<string>("availableManagedPathsForSiteCreation", AvailableManagedPathsForSiteCreation);
diff --git a/src/Microsoft.Graph/Generated/Models/SharingDetail.cs b/src/Microsoft.Graph/Generated/Models/SharingDetail.cs
index 09f9069f509..8204b656a1b 100644
--- a/src/Microsoft.Graph/Generated/Models/SharingDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharingDetail.cs
@@ -122,7 +122,7 @@ public SharingDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SharingDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharingDetail();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.InsightIdentity>("sharedBy", SharedBy);
             writer.WriteDateTimeOffsetValue("sharedDateTime", SharedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/SharingInvitation.cs b/src/Microsoft.Graph/Generated/Models/SharingInvitation.cs
index 6fc213808ba..a3bc3888cda 100644
--- a/src/Microsoft.Graph/Generated/Models/SharingInvitation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharingInvitation.cs
@@ -106,7 +106,7 @@ public SharingInvitation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SharingInvitation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharingInvitation();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("email", Email);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("invitedBy", InvitedBy);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SharingLink.cs b/src/Microsoft.Graph/Generated/Models/SharingLink.cs
index 8e72c464fd1..a2d12fd14be 100644
--- a/src/Microsoft.Graph/Generated/Models/SharingLink.cs
+++ b/src/Microsoft.Graph/Generated/Models/SharingLink.cs
@@ -138,7 +138,7 @@ public SharingLink()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SharingLink CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SharingLink();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("application", Application);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("preventsDownload", PreventsDownload);
diff --git a/src/Microsoft.Graph/Generated/Models/Shift.cs b/src/Microsoft.Graph/Generated/Models/Shift.cs
index 2efe408da0f..455895bc3fc 100644
--- a/src/Microsoft.Graph/Generated/Models/Shift.cs
+++ b/src/Microsoft.Graph/Generated/Models/Shift.cs
@@ -96,7 +96,7 @@ public Shift() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Shift CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Shift();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ShiftItem>("draftShift", DraftShift);
             writer.WriteBoolValue("isStagedForDeletion", IsStagedForDeletion);
diff --git a/src/Microsoft.Graph/Generated/Models/ShiftActivity.cs b/src/Microsoft.Graph/Generated/Models/ShiftActivity.cs
index 03f574e5925..acd8b30228d 100644
--- a/src/Microsoft.Graph/Generated/Models/ShiftActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/ShiftActivity.cs
@@ -108,7 +108,7 @@ public ShiftActivity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ShiftActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ShiftActivity();
         }
         /// <summary>
@@ -134,7 +134,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/ShiftAvailability.cs b/src/Microsoft.Graph/Generated/Models/ShiftAvailability.cs
index 059074d421f..b4ff6ff3a9e 100644
--- a/src/Microsoft.Graph/Generated/Models/ShiftAvailability.cs
+++ b/src/Microsoft.Graph/Generated/Models/ShiftAvailability.cs
@@ -100,7 +100,7 @@ public ShiftAvailability()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ShiftAvailability CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ShiftAvailability();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PatternedRecurrence>("recurrence", Recurrence);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeRange>("timeSlots", TimeSlots);
diff --git a/src/Microsoft.Graph/Generated/Models/ShiftCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ShiftCollectionResponse.cs
index d4ff2af9e66..e1fa0b09836 100644
--- a/src/Microsoft.Graph/Generated/Models/ShiftCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ShiftCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ShiftCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ShiftCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ShiftCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Shift>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ShiftItem.cs b/src/Microsoft.Graph/Generated/Models/ShiftItem.cs
index d044445b7b5..d3e2e66232c 100644
--- a/src/Microsoft.Graph/Generated/Models/ShiftItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/ShiftItem.cs
@@ -67,7 +67,7 @@ public string Notes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ShiftItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ShiftActivity>("activities", Activities);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/ShiftPreferences.cs b/src/Microsoft.Graph/Generated/Models/ShiftPreferences.cs
index ccffd07f00d..feddaa166db 100644
--- a/src/Microsoft.Graph/Generated/Models/ShiftPreferences.cs
+++ b/src/Microsoft.Graph/Generated/Models/ShiftPreferences.cs
@@ -42,7 +42,7 @@ public ShiftPreferences() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ShiftPreferences CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ShiftPreferences();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ShiftAvailability>("availability", Availability);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SignIn.cs b/src/Microsoft.Graph/Generated/Models/SignIn.cs
index 5912f0f2a15..0a6f2cb2cd6 100644
--- a/src/Microsoft.Graph/Generated/Models/SignIn.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignIn.cs
@@ -317,7 +317,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SignIn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SignIn();
         }
         /// <summary>
@@ -359,7 +359,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appDisplayName", AppDisplayName);
             writer.WriteStringValue("appId", AppId);
diff --git a/src/Microsoft.Graph/Generated/Models/SignInActivity.cs b/src/Microsoft.Graph/Generated/Models/SignInActivity.cs
index b23cf9ab7ca..e0113a325d1 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInActivity.cs
@@ -118,7 +118,7 @@ public SignInActivity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SignInActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SignInActivity();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastNonInteractiveSignInDateTime", LastNonInteractiveSignInDateTime);
             writer.WriteStringValue("lastNonInteractiveSignInRequestId", LastNonInteractiveSignInRequestId);
             writer.WriteDateTimeOffsetValue("lastSignInDateTime", LastSignInDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/SignInCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SignInCollectionResponse.cs
index 552af39a91b..32f1e6f901a 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SignInCollectionResponse : global::Microsoft.Graph.Models.B
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SignInCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SignInCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SignIn>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SignInConditions.cs b/src/Microsoft.Graph/Generated/Models/SignInConditions.cs
index f225e8019ae..32ca7cbdb64 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInConditions.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInConditions.cs
@@ -152,7 +152,7 @@ public SignInConditions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SignInConditions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SignInConditions();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AuthenticationFlow>("authenticationFlow", AuthenticationFlow);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ConditionalAccessClientApp>("clientAppType", ClientAppType);
             writer.WriteStringValue("country", Country);
diff --git a/src/Microsoft.Graph/Generated/Models/SignInContext.cs b/src/Microsoft.Graph/Generated/Models/SignInContext.cs
index e208e6dd496..dc221251872 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInContext.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInContext.cs
@@ -52,7 +52,7 @@ public SignInContext()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SignInContext CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SignInFrequencySessionControl.cs b/src/Microsoft.Graph/Generated/Models/SignInFrequencySessionControl.cs
index 41522d9b2cf..07d4a6558be 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInFrequencySessionControl.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInFrequencySessionControl.cs
@@ -50,7 +50,7 @@ public SignInFrequencySessionControl() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SignInFrequencySessionControl CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SignInFrequencySessionControl();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SignInFrequencyAuthenticationType>("authenticationType", AuthenticationType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SignInFrequencyInterval>("frequencyInterval", FrequencyInterval);
diff --git a/src/Microsoft.Graph/Generated/Models/SignInIdentity.cs b/src/Microsoft.Graph/Generated/Models/SignInIdentity.cs
index 35b233d1dde..9ab30f6a4c8 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInIdentity.cs
@@ -52,7 +52,7 @@ public SignInIdentity()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SignInIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SignInLocation.cs b/src/Microsoft.Graph/Generated/Models/SignInLocation.cs
index ddecfbba27b..78614e48a0d 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInLocation.cs
@@ -116,7 +116,7 @@ public SignInLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SignInLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SignInLocation();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("city", City);
             writer.WriteStringValue("countryOrRegion", CountryOrRegion);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.GeoCoordinates>("geoCoordinates", GeoCoordinates);
diff --git a/src/Microsoft.Graph/Generated/Models/SignInStatus.cs b/src/Microsoft.Graph/Generated/Models/SignInStatus.cs
index 8b5b41bc836..ce01a775cb4 100644
--- a/src/Microsoft.Graph/Generated/Models/SignInStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/SignInStatus.cs
@@ -90,7 +90,7 @@ public SignInStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SignInStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SignInStatus();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("additionalDetails", AdditionalDetails);
             writer.WriteIntValue("errorCode", ErrorCode);
             writer.WriteStringValue("failureReason", FailureReason);
diff --git a/src/Microsoft.Graph/Generated/Models/SigningCertificateUpdateStatus.cs b/src/Microsoft.Graph/Generated/Models/SigningCertificateUpdateStatus.cs
index 15d3ff1c1d1..a8039ecc5df 100644
--- a/src/Microsoft.Graph/Generated/Models/SigningCertificateUpdateStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/SigningCertificateUpdateStatus.cs
@@ -74,7 +74,7 @@ public SigningCertificateUpdateStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SigningCertificateUpdateStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SigningCertificateUpdateStatus();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("certificateUpdateResult", CertificateUpdateResult);
             writer.WriteDateTimeOffsetValue("lastRunDateTime", LastRunDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Simulation.cs b/src/Microsoft.Graph/Generated/Models/Simulation.cs
index 220f9fa4e1f..1f7cd870e1d 100644
--- a/src/Microsoft.Graph/Generated/Models/Simulation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Simulation.cs
@@ -303,7 +303,7 @@ public DateTimeOffset? LaunchDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Simulation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Simulation();
         }
         /// <summary>
@@ -346,7 +346,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SimulationAttackTechnique>("attackTechnique", AttackTechnique);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SimulationAttackType>("attackType", AttackType);
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationAutomation.cs b/src/Microsoft.Graph/Generated/Models/SimulationAutomation.cs
index d1fb45cf156..230a475fe6d 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationAutomation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationAutomation.cs
@@ -129,7 +129,7 @@ public DateTimeOffset? NextRunDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SimulationAutomation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationAutomation();
         }
         /// <summary>
@@ -158,7 +158,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailIdentity>("createdBy", CreatedBy);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationAutomationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SimulationAutomationCollectionResponse.cs
index b63a7992c32..347be83f142 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationAutomationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationAutomationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SimulationAutomationCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SimulationAutomationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationAutomationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SimulationAutomation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationAutomationRun.cs b/src/Microsoft.Graph/Generated/Models/SimulationAutomationRun.cs
index cb532bddae5..c803431c9db 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationAutomationRun.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationAutomationRun.cs
@@ -53,7 +53,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SimulationAutomationRun CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationAutomationRun();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("simulationId", SimulationId);
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationAutomationRunCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SimulationAutomationRunCollectionResponse.cs
index 6987cd36032..ae6dda8f411 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationAutomationRunCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationAutomationRunCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SimulationAutomationRunCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SimulationAutomationRunCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationAutomationRunCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SimulationAutomationRun>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SimulationCollectionResponse.cs
index 02b003ec538..ff52832c398 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SimulationCollectionResponse : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SimulationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Simulation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationEvent.cs b/src/Microsoft.Graph/Generated/Models/SimulationEvent.cs
index 6329125d42c..9fa205db25e 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationEvent.cs
@@ -74,7 +74,7 @@ public SimulationEvent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SimulationEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationEvent();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("count", Count);
             writer.WriteStringValue("eventName", EventName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationEventsContent.cs b/src/Microsoft.Graph/Generated/Models/SimulationEventsContent.cs
index 1a93223a294..d4637e16bf9 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationEventsContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationEventsContent.cs
@@ -74,7 +74,7 @@ public SimulationEventsContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SimulationEventsContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationEventsContent();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDoubleValue("compromisedRate", CompromisedRate);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SimulationEvent>("events", Events);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationNotification.cs b/src/Microsoft.Graph/Generated/Models/SimulationNotification.cs
index da7be1353cd..8841e27ab0b 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationNotification.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationNotification.cs
@@ -32,7 +32,7 @@ public SimulationNotification() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SimulationNotification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationNotification();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TargettedUserType>("targettedUserType", TargettedUserType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationReport.cs b/src/Microsoft.Graph/Generated/Models/SimulationReport.cs
index 3a77d057fde..41f22f68d23 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationReport.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationReport.cs
@@ -84,7 +84,7 @@ public SimulationReport()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SimulationReport CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationReport();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SimulationReportOverview>("overview", Overview);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserSimulationDetails>("simulationUsers", SimulationUsers);
diff --git a/src/Microsoft.Graph/Generated/Models/SimulationReportOverview.cs b/src/Microsoft.Graph/Generated/Models/SimulationReportOverview.cs
index 6eba5952239..0a307d3bad8 100644
--- a/src/Microsoft.Graph/Generated/Models/SimulationReportOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/SimulationReportOverview.cs
@@ -106,7 +106,7 @@ public SimulationReportOverview()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SimulationReportOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SimulationReportOverview();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecommendedAction>("recommendedActions", RecommendedActions);
             writer.WriteIntValue("resolvedTargetsCount", ResolvedTargetsCount);
diff --git a/src/Microsoft.Graph/Generated/Models/SingleServicePrincipal.cs b/src/Microsoft.Graph/Generated/Models/SingleServicePrincipal.cs
index a52e27195fc..03685394e2e 100644
--- a/src/Microsoft.Graph/Generated/Models/SingleServicePrincipal.cs
+++ b/src/Microsoft.Graph/Generated/Models/SingleServicePrincipal.cs
@@ -58,7 +58,7 @@ public SingleServicePrincipal() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SingleServicePrincipal CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SingleServicePrincipal();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("servicePrincipalId", ServicePrincipalId);
diff --git a/src/Microsoft.Graph/Generated/Models/SingleUser.cs b/src/Microsoft.Graph/Generated/Models/SingleUser.cs
index 70887f2763e..cb7fd07fd2c 100644
--- a/src/Microsoft.Graph/Generated/Models/SingleUser.cs
+++ b/src/Microsoft.Graph/Generated/Models/SingleUser.cs
@@ -58,7 +58,7 @@ public SingleUser() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SingleUser CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SingleUser();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("userId", UserId);
diff --git a/src/Microsoft.Graph/Generated/Models/SingleValueLegacyExtendedProperty.cs b/src/Microsoft.Graph/Generated/Models/SingleValueLegacyExtendedProperty.cs
index d9ef61e41ca..5c50c05a76f 100644
--- a/src/Microsoft.Graph/Generated/Models/SingleValueLegacyExtendedProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/SingleValueLegacyExtendedProperty.cs
@@ -35,7 +35,7 @@ public string Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SingleValueLegacyExtendedProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SingleValueLegacyExtendedProperty();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Site.cs b/src/Microsoft.Graph/Generated/Models/Site.cs
index 8fec07433e0..6d2b21376f9 100644
--- a/src/Microsoft.Graph/Generated/Models/Site.cs
+++ b/src/Microsoft.Graph/Generated/Models/Site.cs
@@ -353,7 +353,7 @@ public Site() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Site CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Site();
         }
         /// <summary>
@@ -393,7 +393,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemAnalytics>("analytics", Analytics);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ColumnDefinition>("columns", Columns);
diff --git a/src/Microsoft.Graph/Generated/Models/SiteArchivalDetails.cs b/src/Microsoft.Graph/Generated/Models/SiteArchivalDetails.cs
index 52ea5d760eb..2ae73e8052a 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteArchivalDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteArchivalDetails.cs
@@ -58,7 +58,7 @@ public SiteArchivalDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SiteArchivalDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteArchivalDetails();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SiteArchiveStatus>("archiveStatus", ArchiveStatus);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/SiteCollection.cs b/src/Microsoft.Graph/Generated/Models/SiteCollection.cs
index f087c9f17e3..9a7738d1bf3 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteCollection.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteCollection.cs
@@ -116,7 +116,7 @@ public SiteCollection()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SiteCollection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteCollection();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SiteArchivalDetails>("archivalDetails", ArchivalDetails);
             writer.WriteStringValue("dataLocationCode", DataLocationCode);
             writer.WriteStringValue("hostname", Hostname);
diff --git a/src/Microsoft.Graph/Generated/Models/SiteCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SiteCollectionResponse.cs
index 7652ea431c2..99174d32205 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SiteCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SitePage.cs b/src/Microsoft.Graph/Generated/Models/SitePage.cs
index 787d14ab867..2661d836350 100644
--- a/src/Microsoft.Graph/Generated/Models/SitePage.cs
+++ b/src/Microsoft.Graph/Generated/Models/SitePage.cs
@@ -117,7 +117,7 @@ public string ThumbnailWebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SitePage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SitePage();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CanvasLayout>("canvasLayout", CanvasLayout);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.PagePromotionType>("promotionKind", PromotionKind);
diff --git a/src/Microsoft.Graph/Generated/Models/SitePageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SitePageCollectionResponse.cs
index 94f7492f77b..542a339c5f7 100644
--- a/src/Microsoft.Graph/Generated/Models/SitePageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SitePageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SitePageCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SitePageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SitePageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SitePage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteProtectionRule.cs b/src/Microsoft.Graph/Generated/Models/SiteProtectionRule.cs
index 81b556a8760..0140f40b580 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteProtectionRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteProtectionRule.cs
@@ -42,7 +42,7 @@ public SiteProtectionRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteProtectionRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteProtectionRule();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("siteExpression", SiteExpression);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteProtectionRuleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SiteProtectionRuleCollectionResponse.cs
index 1685752db9b..4f673e2951c 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteProtectionRuleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteProtectionRuleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SiteProtectionRuleCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteProtectionRuleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteProtectionRuleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteProtectionRule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnit.cs b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnit.cs
index 794dcb4d3e2..ed1f4051508 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnit.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnit.cs
@@ -74,7 +74,7 @@ public SiteProtectionUnit() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteProtectionUnit CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteProtectionUnit();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("siteId", SiteId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitCollectionResponse.cs
index f911d8c61e9..d02096093da 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SiteProtectionUnitCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteProtectionUnitCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteProtectionUnitCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteProtectionUnit>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJob.cs b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJob.cs
index b7bd2d42966..c6c4a83b18a 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJob.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJob.cs
@@ -58,7 +58,7 @@ public SiteProtectionUnitsBulkAdditionJob() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("siteIds", SiteIds);
             writer.WriteCollectionOfPrimitiveValues<string>("siteWebUrls", SiteWebUrls);
diff --git a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJobCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJobCollectionResponse.cs
index 97c2c543c59..8f5f7e5d249 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJobCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteProtectionUnitsBulkAdditionJobCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SiteProtectionUnitsBulkAdditionJobCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJobCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJobCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifact.cs b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifact.cs
index 7f39117985c..520d038dcde 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifact.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifact.cs
@@ -67,7 +67,7 @@ public string RestoredSiteWebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteRestoreArtifact CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteRestoreArtifact();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("restoredSiteId", RestoredSiteId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactCollectionResponse.cs
index f5d026b32a5..5ed47c94759 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SiteRestoreArtifactCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteRestoreArtifactCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteRestoreArtifactCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteRestoreArtifact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequest.cs b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequest.cs
index 15449d988ac..2a5dfac9d17 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequest.cs
@@ -51,7 +51,7 @@ public List<string> SiteWebUrls
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("siteIds", SiteIds);
             writer.WriteCollectionOfPrimitiveValues<string>("siteWebUrls", SiteWebUrls);
diff --git a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
index 85d2e271f60..2bd7452e86f 100644
--- a/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SiteRestoreArtifactsBulkAdditionRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SiteRestoreArtifactsBulkAdditionRequestCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SizeRange.cs b/src/Microsoft.Graph/Generated/Models/SizeRange.cs
index 8e76adfb987..f762f8136f6 100644
--- a/src/Microsoft.Graph/Generated/Models/SizeRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/SizeRange.cs
@@ -64,7 +64,7 @@ public SizeRange()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SizeRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SizeRange();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("maximumSize", MaximumSize);
             writer.WriteIntValue("minimumSize", MinimumSize);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SkypeForBusinessUserConversationMember.cs b/src/Microsoft.Graph/Generated/Models/SkypeForBusinessUserConversationMember.cs
index 15ef89c59ec..8f85d357629 100644
--- a/src/Microsoft.Graph/Generated/Models/SkypeForBusinessUserConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/SkypeForBusinessUserConversationMember.cs
@@ -58,7 +58,7 @@ public SkypeForBusinessUserConversationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SkypeForBusinessUserConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SkypeForBusinessUserConversationMember();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("tenantId", TenantId);
             writer.WriteStringValue("userId", UserId);
diff --git a/src/Microsoft.Graph/Generated/Models/SkypeUserConversationMember.cs b/src/Microsoft.Graph/Generated/Models/SkypeUserConversationMember.cs
index fc433cf7d82..29882b0592a 100644
--- a/src/Microsoft.Graph/Generated/Models/SkypeUserConversationMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/SkypeUserConversationMember.cs
@@ -42,7 +42,7 @@ public SkypeUserConversationMember() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SkypeUserConversationMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SkypeUserConversationMember();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("skypeId", SkypeId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodConfiguration.cs
index 11b1f13f1bf..cc4996fc8d1 100644
--- a/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodConfiguration.cs
@@ -42,7 +42,7 @@ public SmsAuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SmsAuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SmsAuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SmsAuthenticationMethodTarget>("includeTargets", IncludeTargets);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodTarget.cs b/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodTarget.cs
index 31343b8a64e..47c54e8236e 100644
--- a/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/SmsAuthenticationMethodTarget.cs
@@ -25,7 +25,7 @@ public bool? IsUsableForSignIn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SmsAuthenticationMethodTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SmsAuthenticationMethodTarget();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isUsableForSignIn", IsUsableForSignIn);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SocialIdentityProvider.cs b/src/Microsoft.Graph/Generated/Models/SocialIdentityProvider.cs
index e2cbcfe34ee..ea5acc9ce0b 100644
--- a/src/Microsoft.Graph/Generated/Models/SocialIdentityProvider.cs
+++ b/src/Microsoft.Graph/Generated/Models/SocialIdentityProvider.cs
@@ -74,7 +74,7 @@ public SocialIdentityProvider() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SocialIdentityProvider CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SocialIdentityProvider();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("clientId", ClientId);
             writer.WriteStringValue("clientSecret", ClientSecret);
diff --git a/src/Microsoft.Graph/Generated/Models/SocialIdentitySource.cs b/src/Microsoft.Graph/Generated/Models/SocialIdentitySource.cs
index 6806cb19a24..44fbfee3a8e 100644
--- a/src/Microsoft.Graph/Generated/Models/SocialIdentitySource.cs
+++ b/src/Microsoft.Graph/Generated/Models/SocialIdentitySource.cs
@@ -48,7 +48,7 @@ public SocialIdentitySource() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SocialIdentitySource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SocialIdentitySource();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SocialIdentitySourceType>("socialIdentitySourceType", SocialIdentitySourceType);
diff --git a/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethod.cs
index d952eb5b16c..d60649b3cc4 100644
--- a/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethod.cs
@@ -42,7 +42,7 @@ public SoftwareOathAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SoftwareOathAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SoftwareOathAuthenticationMethod();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("secretKey", SecretKey);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodCollectionResponse.cs
index 0197c0619e7..0808d0b0108 100644
--- a/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SoftwareOathAuthenticationMethodCollectionResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SoftwareOathAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SoftwareOathAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SoftwareOathAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodConfiguration.cs
index 3cd41a6c89f..7e5032e1604 100644
--- a/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/SoftwareOathAuthenticationMethodConfiguration.cs
@@ -42,7 +42,7 @@ public SoftwareOathAuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SoftwareOathAuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SoftwareOathAuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodTarget>("includeTargets", IncludeTargets);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SoftwareUpdateStatusSummary.cs b/src/Microsoft.Graph/Generated/Models/SoftwareUpdateStatusSummary.cs
index f56af0f36b9..4825d9130f4 100644
--- a/src/Microsoft.Graph/Generated/Models/SoftwareUpdateStatusSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/SoftwareUpdateStatusSummary.cs
@@ -119,7 +119,7 @@ public int? UnknownUserCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SoftwareUpdateStatusSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SoftwareUpdateStatusSummary();
         }
         /// <summary>
@@ -153,7 +153,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("compliantDeviceCount", CompliantDeviceCount);
             writer.WriteIntValue("compliantUserCount", CompliantUserCount);
diff --git a/src/Microsoft.Graph/Generated/Models/SolutionsRoot.cs b/src/Microsoft.Graph/Generated/Models/SolutionsRoot.cs
index f89b0903919..6e0abb46bd8 100644
--- a/src/Microsoft.Graph/Generated/Models/SolutionsRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/SolutionsRoot.cs
@@ -116,7 +116,7 @@ public SolutionsRoot()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SolutionsRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SolutionsRoot();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BackupRestoreRoot>("backupRestore", BackupRestore);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingBusiness>("bookingBusinesses", BookingBusinesses);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.BookingCurrency>("bookingCurrencies", BookingCurrencies);
diff --git a/src/Microsoft.Graph/Generated/Models/SortProperty.cs b/src/Microsoft.Graph/Generated/Models/SortProperty.cs
index 96786262958..538d31b7abf 100644
--- a/src/Microsoft.Graph/Generated/Models/SortProperty.cs
+++ b/src/Microsoft.Graph/Generated/Models/SortProperty.cs
@@ -74,7 +74,7 @@ public SortProperty()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SortProperty CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SortProperty();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isDescending", IsDescending);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SpaApplication.cs b/src/Microsoft.Graph/Generated/Models/SpaApplication.cs
index b8fa216c1b6..6c4484dbfdd 100644
--- a/src/Microsoft.Graph/Generated/Models/SpaApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/SpaApplication.cs
@@ -68,7 +68,7 @@ public SpaApplication()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SpaApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SpaApplication();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("redirectUris", RedirectUris);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/SpecialFolder.cs b/src/Microsoft.Graph/Generated/Models/SpecialFolder.cs
index 05668ac8b0c..185fb67c112 100644
--- a/src/Microsoft.Graph/Generated/Models/SpecialFolder.cs
+++ b/src/Microsoft.Graph/Generated/Models/SpecialFolder.cs
@@ -68,7 +68,7 @@ public SpecialFolder()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SpecialFolder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SpecialFolder();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/StaffAvailabilityItem.cs b/src/Microsoft.Graph/Generated/Models/StaffAvailabilityItem.cs
index 75e52f6b8dc..e5fb4da793d 100644
--- a/src/Microsoft.Graph/Generated/Models/StaffAvailabilityItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/StaffAvailabilityItem.cs
@@ -84,7 +84,7 @@ public StaffAvailabilityItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.StaffAvailabilityItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StaffAvailabilityItem();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AvailabilityItem>("availabilityItems", AvailabilityItems);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("staffId", StaffId);
diff --git a/src/Microsoft.Graph/Generated/Models/StandardTimeZoneOffset.cs b/src/Microsoft.Graph/Generated/Models/StandardTimeZoneOffset.cs
index 046603dbaad..eb8a61cb4dd 100644
--- a/src/Microsoft.Graph/Generated/Models/StandardTimeZoneOffset.cs
+++ b/src/Microsoft.Graph/Generated/Models/StandardTimeZoneOffset.cs
@@ -83,7 +83,7 @@ public StandardTimeZoneOffset()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.StandardTimeZoneOffset CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("dayOccurrence", DayOccurrence);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.DayOfWeekObject>("dayOfWeek", DayOfWeek);
             writer.WriteIntValue("month", Month);
diff --git a/src/Microsoft.Graph/Generated/Models/StandardWebPart.cs b/src/Microsoft.Graph/Generated/Models/StandardWebPart.cs
index a911be1fbfe..fd86c2cbdcb 100644
--- a/src/Microsoft.Graph/Generated/Models/StandardWebPart.cs
+++ b/src/Microsoft.Graph/Generated/Models/StandardWebPart.cs
@@ -74,7 +74,7 @@ public StandardWebPart() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.StandardWebPart CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StandardWebPart();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("containerTextWebPartId", ContainerTextWebPartId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WebPartData>("data", Data);
diff --git a/src/Microsoft.Graph/Generated/Models/StartHoldMusicOperation.cs b/src/Microsoft.Graph/Generated/Models/StartHoldMusicOperation.cs
index 8c623d8dedd..9b48956937f 100644
--- a/src/Microsoft.Graph/Generated/Models/StartHoldMusicOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/StartHoldMusicOperation.cs
@@ -19,7 +19,7 @@ public partial class StartHoldMusicOperation : global::Microsoft.Graph.Models.Co
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.StartHoldMusicOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StartHoldMusicOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/StopHoldMusicOperation.cs b/src/Microsoft.Graph/Generated/Models/StopHoldMusicOperation.cs
index f905db9443e..139832b9639 100644
--- a/src/Microsoft.Graph/Generated/Models/StopHoldMusicOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/StopHoldMusicOperation.cs
@@ -19,7 +19,7 @@ public partial class StopHoldMusicOperation : global::Microsoft.Graph.Models.Com
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.StopHoldMusicOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StopHoldMusicOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/Storage.cs b/src/Microsoft.Graph/Generated/Models/Storage.cs
index 5cd9a8bc6fb..739c66db4b0 100644
--- a/src/Microsoft.Graph/Generated/Models/Storage.cs
+++ b/src/Microsoft.Graph/Generated/Models/Storage.cs
@@ -84,7 +84,7 @@ public Storage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Storage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Storage();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.FileStorage>("fileStorage", FileStorage);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.StorageSettings>("settings", Settings);
diff --git a/src/Microsoft.Graph/Generated/Models/StoragePlanInformation.cs b/src/Microsoft.Graph/Generated/Models/StoragePlanInformation.cs
index 9fd041ebaa6..66ba0322f93 100644
--- a/src/Microsoft.Graph/Generated/Models/StoragePlanInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/StoragePlanInformation.cs
@@ -58,7 +58,7 @@ public StoragePlanInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.StoragePlanInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StoragePlanInformation();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("upgradeAvailable", UpgradeAvailable);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/StorageQuotaBreakdown.cs b/src/Microsoft.Graph/Generated/Models/StorageQuotaBreakdown.cs
index 66c0ff9a655..aab523d367d 100644
--- a/src/Microsoft.Graph/Generated/Models/StorageQuotaBreakdown.cs
+++ b/src/Microsoft.Graph/Generated/Models/StorageQuotaBreakdown.cs
@@ -57,7 +57,7 @@ public long? Used
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.StorageQuotaBreakdown CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -84,7 +84,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("manageWebUrl", ManageWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/StorageSettings.cs b/src/Microsoft.Graph/Generated/Models/StorageSettings.cs
index 3c7b3e55ce7..1d72de4d3b6 100644
--- a/src/Microsoft.Graph/Generated/Models/StorageSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/StorageSettings.cs
@@ -35,7 +35,7 @@ public partial class StorageSettings : global::Microsoft.Graph.Models.Entity, IP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.StorageSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StorageSettings();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UnifiedStorageQuota>("quota", Quota);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/StringCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/StringCollectionResponse.cs
index 5e235273262..c2ec6899e43 100644
--- a/src/Microsoft.Graph/Generated/Models/StringCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/StringCollectionResponse.cs
@@ -35,7 +35,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.StringCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StringCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/StringKeyAttributeMappingSourceValuePair.cs b/src/Microsoft.Graph/Generated/Models/StringKeyAttributeMappingSourceValuePair.cs
index 2ce7094dc42..99caa87f8e9 100644
--- a/src/Microsoft.Graph/Generated/Models/StringKeyAttributeMappingSourceValuePair.cs
+++ b/src/Microsoft.Graph/Generated/Models/StringKeyAttributeMappingSourceValuePair.cs
@@ -84,7 +84,7 @@ public StringKeyAttributeMappingSourceValuePair()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.StringKeyAttributeMappingSourceValuePair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StringKeyAttributeMappingSourceValuePair();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttributeMappingSource>("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/StringKeyLongValuePair.cs b/src/Microsoft.Graph/Generated/Models/StringKeyLongValuePair.cs
index ee1ba6afc65..38b67c7af54 100644
--- a/src/Microsoft.Graph/Generated/Models/StringKeyLongValuePair.cs
+++ b/src/Microsoft.Graph/Generated/Models/StringKeyLongValuePair.cs
@@ -74,7 +74,7 @@ public StringKeyLongValuePair()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.StringKeyLongValuePair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StringKeyLongValuePair();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/StringKeyObjectValuePair.cs b/src/Microsoft.Graph/Generated/Models/StringKeyObjectValuePair.cs
index b04e6a34c7c..5948c539961 100644
--- a/src/Microsoft.Graph/Generated/Models/StringKeyObjectValuePair.cs
+++ b/src/Microsoft.Graph/Generated/Models/StringKeyObjectValuePair.cs
@@ -68,7 +68,7 @@ public StringKeyObjectValuePair()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.StringKeyObjectValuePair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StringKeyObjectValuePair();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/StringKeyStringValuePair.cs b/src/Microsoft.Graph/Generated/Models/StringKeyStringValuePair.cs
index c1ef148cfc5..8a5c674eb3d 100644
--- a/src/Microsoft.Graph/Generated/Models/StringKeyStringValuePair.cs
+++ b/src/Microsoft.Graph/Generated/Models/StringKeyStringValuePair.cs
@@ -84,7 +84,7 @@ public StringKeyStringValuePair()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.StringKeyStringValuePair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.StringKeyStringValuePair();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/StsPolicy.cs b/src/Microsoft.Graph/Generated/Models/StsPolicy.cs
index 1d625746fd1..cbf38fefb1f 100644
--- a/src/Microsoft.Graph/Generated/Models/StsPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/StsPolicy.cs
@@ -64,7 +64,7 @@ public StsPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.StsPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -95,7 +95,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("appliesTo", AppliesTo);
             writer.WriteCollectionOfPrimitiveValues<string>("definition", Definition);
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequest.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequest.cs
index 5ecad692627..9fc1f3ab35c 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequest.cs
@@ -367,7 +367,7 @@ public List<string> Regulations
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubjectRightsRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequest();
         }
         /// <summary>
@@ -414,7 +414,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.User>("approvers", Approvers);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("assignedTo", AssignedTo);
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllMailboxLocation.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllMailboxLocation.cs
index 9a253013078..3c79885f5f8 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllMailboxLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllMailboxLocation.cs
@@ -26,7 +26,7 @@ public SubjectRightsRequestAllMailboxLocation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubjectRightsRequestAllMailboxLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestAllMailboxLocation();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllSiteLocation.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllSiteLocation.cs
index d681b015c83..24435475e9a 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllSiteLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestAllSiteLocation.cs
@@ -26,7 +26,7 @@ public SubjectRightsRequestAllSiteLocation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubjectRightsRequestAllSiteLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestAllSiteLocation();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestCollectionResponse.cs
index 17aa8511de6..330e4645962 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SubjectRightsRequestCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubjectRightsRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SubjectRightsRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestDetail.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestDetail.cs
index 943621f0d7c..aedcc27f620 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestDetail.cs
@@ -114,7 +114,7 @@ public SubjectRightsRequestDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SubjectRightsRequestDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestDetail();
         }
         /// <summary>
@@ -141,7 +141,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteLongValue("excludedItemCount", ExcludedItemCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.KeyValuePair>("insightCounts", InsightCounts);
             writer.WriteLongValue("itemCount", ItemCount);
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedMailboxLocation.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedMailboxLocation.cs
index 23b82d2551c..ecbe58da30b 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedMailboxLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedMailboxLocation.cs
@@ -42,7 +42,7 @@ public SubjectRightsRequestEnumeratedMailboxLocation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubjectRightsRequestEnumeratedMailboxLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestEnumeratedMailboxLocation();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("userPrincipalNames", UserPrincipalNames);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedSiteLocation.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedSiteLocation.cs
index e9343f78161..3e1b127714f 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedSiteLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestEnumeratedSiteLocation.cs
@@ -42,7 +42,7 @@ public SubjectRightsRequestEnumeratedSiteLocation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubjectRightsRequestEnumeratedSiteLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestEnumeratedSiteLocation();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("urls", Urls);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestHistory.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestHistory.cs
index 45fbcd09e16..a4d8b3c026e 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestHistory.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestHistory.cs
@@ -102,7 +102,7 @@ public SubjectRightsRequestHistory()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SubjectRightsRequestHistory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestHistory();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("changedBy", ChangedBy);
             writer.WriteDateTimeOffsetValue("eventDateTime", EventDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestMailboxLocation.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestMailboxLocation.cs
index 10e90dfafa9..6ae3182aa54 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestMailboxLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestMailboxLocation.cs
@@ -52,7 +52,7 @@ public SubjectRightsRequestMailboxLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SubjectRightsRequestMailboxLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestSiteLocation.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestSiteLocation.cs
index ad780976a6a..bd4505a4356 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestSiteLocation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestSiteLocation.cs
@@ -52,7 +52,7 @@ public SubjectRightsRequestSiteLocation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SubjectRightsRequestSiteLocation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestStageDetail.cs b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestStageDetail.cs
index 6695bbf86e7..42bc8e7ebd2 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestStageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectRightsRequestStageDetail.cs
@@ -80,7 +80,7 @@ public SubjectRightsRequestStageDetail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SubjectRightsRequestStageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubjectRightsRequestStageDetail();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PublicError>("error", Error);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SubjectRightsRequestStage>("stage", Stage);
diff --git a/src/Microsoft.Graph/Generated/Models/SubjectSet.cs b/src/Microsoft.Graph/Generated/Models/SubjectSet.cs
index eb1f6fce6a2..ba7f799e977 100644
--- a/src/Microsoft.Graph/Generated/Models/SubjectSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubjectSet.cs
@@ -53,7 +53,7 @@ public SubjectSet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SubjectSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SubscribeToToneOperation.cs b/src/Microsoft.Graph/Generated/Models/SubscribeToToneOperation.cs
index 980b3f6c222..af2ccc5ed49 100644
--- a/src/Microsoft.Graph/Generated/Models/SubscribeToToneOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubscribeToToneOperation.cs
@@ -19,7 +19,7 @@ public partial class SubscribeToToneOperation : global::Microsoft.Graph.Models.C
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubscribeToToneOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubscribeToToneOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/SubscribedSku.cs b/src/Microsoft.Graph/Generated/Models/SubscribedSku.cs
index ace4a346ea8..17dd2a6925e 100644
--- a/src/Microsoft.Graph/Generated/Models/SubscribedSku.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubscribedSku.cs
@@ -159,7 +159,7 @@ public List<string> SubscriptionIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubscribedSku CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubscribedSku();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("accountId", AccountId);
             writer.WriteStringValue("accountName", AccountName);
diff --git a/src/Microsoft.Graph/Generated/Models/SubscribedSkuCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SubscribedSkuCollectionResponse.cs
index 57b51b49ea7..dcd07020c4b 100644
--- a/src/Microsoft.Graph/Generated/Models/SubscribedSkuCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubscribedSkuCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SubscribedSkuCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubscribedSkuCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubscribedSkuCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SubscribedSku>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Subscription.cs b/src/Microsoft.Graph/Generated/Models/Subscription.cs
index 0637c8548b1..0714b6416d6 100644
--- a/src/Microsoft.Graph/Generated/Models/Subscription.cs
+++ b/src/Microsoft.Graph/Generated/Models/Subscription.cs
@@ -223,7 +223,7 @@ public string Resource
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Subscription CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Subscription();
         }
         /// <summary>
@@ -256,7 +256,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("applicationId", ApplicationId);
             writer.WriteStringValue("changeType", ChangeType);
diff --git a/src/Microsoft.Graph/Generated/Models/SubscriptionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SubscriptionCollectionResponse.cs
index e2f286e8e2b..e8c0d68068d 100644
--- a/src/Microsoft.Graph/Generated/Models/SubscriptionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SubscriptionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SubscriptionCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SubscriptionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SubscriptionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Subscription>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequest.cs b/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequest.cs
index 639129acd9f..62ba9ae1c6a 100644
--- a/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequest.cs
@@ -42,7 +42,7 @@ public SwapShiftsChangeRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SwapShiftsChangeRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SwapShiftsChangeRequest();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("recipientShiftId", RecipientShiftId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequestCollectionResponse.cs
index 36fe51253eb..c22178bb176 100644
--- a/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SwapShiftsChangeRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SwapShiftsChangeRequestCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SwapShiftsChangeRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SwapShiftsChangeRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SwapShiftsChangeRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Synchronization.cs b/src/Microsoft.Graph/Generated/Models/Synchronization.cs
index 909d60feda5..72a6bd9777b 100644
--- a/src/Microsoft.Graph/Generated/Models/Synchronization.cs
+++ b/src/Microsoft.Graph/Generated/Models/Synchronization.cs
@@ -67,7 +67,7 @@ public partial class Synchronization : global::Microsoft.Graph.Models.Entity, IP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Synchronization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Synchronization();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationJob>("jobs", Jobs);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("secrets", Secrets);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationError.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationError.cs
index 3c7cf2b4892..35fd2fa0a5f 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationError.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationError.cs
@@ -90,7 +90,7 @@ public SynchronizationError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationError();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationJob.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationJob.cs
index 13a91957fb2..d0fea4bff7e 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationJob.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationJob.cs
@@ -115,7 +115,7 @@ public string TemplateId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SynchronizationJob CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationJob();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BulkUpload>("bulkUpload", BulkUpload);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SynchronizationSchedule>("schedule", Schedule);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationJobApplicationParameters.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationJobApplicationParameters.cs
index 26344c5e550..e3290303824 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationJobApplicationParameters.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationJobApplicationParameters.cs
@@ -84,7 +84,7 @@ public SynchronizationJobApplicationParameters()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationJobApplicationParameters CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationJobApplicationParameters();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("ruleId", RuleId);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationJobSubject>("subjects", Subjects);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationJobCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationJobCollectionResponse.cs
index 8ffc853dd7d..d6a7d4795bf 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationJobCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationJobCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SynchronizationJobCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SynchronizationJobCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationJobCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationJobRestartCriteria.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationJobRestartCriteria.cs
index 9561c851927..185539730f8 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationJobRestartCriteria.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationJobRestartCriteria.cs
@@ -58,7 +58,7 @@ public SynchronizationJobRestartCriteria()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationJobRestartCriteria CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationJobRestartCriteria();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SynchronizationJobRestartScope>("resetScope", ResetScope);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationJobSubject.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationJobSubject.cs
index 79e6c9046a1..9a7dd2ab926 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationJobSubject.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationJobSubject.cs
@@ -100,7 +100,7 @@ public SynchronizationJobSubject()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationJobSubject CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationJobSubject();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SynchronizationLinkedObjects>("links", Links);
             writer.WriteStringValue("objectId", ObjectId);
             writer.WriteStringValue("objectTypeName", ObjectTypeName);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationLinkedObjects.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationLinkedObjects.cs
index 97b33dad621..ee8c08e42d1 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationLinkedObjects.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationLinkedObjects.cs
@@ -100,7 +100,7 @@ public SynchronizationLinkedObjects()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationLinkedObjects CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationLinkedObjects();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SynchronizationJobSubject>("manager", Manager);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationJobSubject>("members", Members);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationMetadataEntry.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationMetadataEntry.cs
index b6ffa57b3b4..a753f8039fc 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationMetadataEntry.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationMetadataEntry.cs
@@ -74,7 +74,7 @@ public SynchronizationMetadataEntry()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationMetadataEntry CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationMetadataEntry();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SynchronizationMetadata>("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationProgress.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationProgress.cs
index 43828c434cf..010a7fa9877 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationProgress.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationProgress.cs
@@ -86,7 +86,7 @@ public SynchronizationProgress()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationProgress CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationProgress();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteLongValue("completedUnits", CompletedUnits);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("progressObservationDateTime", ProgressObservationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationQuarantine.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationQuarantine.cs
index 14c264e4d46..e1eebca6169 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationQuarantine.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationQuarantine.cs
@@ -98,7 +98,7 @@ public SynchronizationQuarantine()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationQuarantine CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationQuarantine();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("currentBegan", CurrentBegan);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SynchronizationError>("error", Error);
             writer.WriteDateTimeOffsetValue("nextAttempt", NextAttempt);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationRule.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationRule.cs
index c548896bf04..5317983a080 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationRule.cs
@@ -192,7 +192,7 @@ public SynchronizationRule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationRule();
         }
         /// <summary>
@@ -222,7 +222,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ContainerFilter>("containerFilter", ContainerFilter);
             writer.WriteBoolValue("editable", Editable);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.GroupFilter>("groupFilter", GroupFilter);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationSchedule.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationSchedule.cs
index 48b878f6ac0..76dd8e6ade7 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationSchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationSchedule.cs
@@ -70,7 +70,7 @@ public SynchronizationSchedule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationSchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationSchedule();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("expiration", Expiration);
             writer.WriteTimeSpanValue("interval", Interval);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationSchema.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationSchema.cs
index 29aa3a51fb5..03b09be270e 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationSchema.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationSchema.cs
@@ -67,7 +67,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SynchronizationSchema CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationSchema();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryDefinition>("directories", Directories);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationRule>("synchronizationRules", SynchronizationRules);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationSecretKeyStringValuePair.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationSecretKeyStringValuePair.cs
index ce03cba776c..02c96fa11bf 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationSecretKeyStringValuePair.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationSecretKeyStringValuePair.cs
@@ -74,7 +74,7 @@ public SynchronizationSecretKeyStringValuePair()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SynchronizationSecret>("key", Key);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationStatus.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationStatus.cs
index 0644f462a04..74f104a036a 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationStatus.cs
@@ -194,7 +194,7 @@ public SynchronizationStatus()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationStatus();
         }
         /// <summary>
@@ -226,7 +226,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SynchronizationStatusCode>("code", Code);
             writer.WriteLongValue("countSuccessiveCompleteFailures", CountSuccessiveCompleteFailures);
             writer.WriteBoolValue("escrowsPruned", EscrowsPruned);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationTaskExecution.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationTaskExecution.cs
index 26ec995da59..60d5ba07111 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationTaskExecution.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationTaskExecution.cs
@@ -156,7 +156,7 @@ public SynchronizationTaskExecution()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SynchronizationTaskExecution CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationTaskExecution();
         }
         /// <summary>
@@ -190,7 +190,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityIdentifier", ActivityIdentifier);
             writer.WriteLongValue("countEntitled", CountEntitled);
             writer.WriteLongValue("countEntitledForProvisioning", CountEntitledForProvisioning);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationTemplate.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationTemplate.cs
index 9020484474d..d335f3c0056 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationTemplate.cs
@@ -101,7 +101,7 @@ public string FactoryTag
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SynchronizationTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationTemplate();
         }
         /// <summary>
@@ -127,7 +127,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteGuidValue("applicationId", ApplicationId);
             writer.WriteBoolValue("default", Default);
diff --git a/src/Microsoft.Graph/Generated/Models/SynchronizationTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/SynchronizationTemplateCollectionResponse.cs
index 14125404555..d7dc055c73e 100644
--- a/src/Microsoft.Graph/Generated/Models/SynchronizationTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/SynchronizationTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SynchronizationTemplateCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.SynchronizationTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SynchronizationTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/SystemFacet.cs b/src/Microsoft.Graph/Generated/Models/SystemFacet.cs
index 3a28f825905..8f0d0894a09 100644
--- a/src/Microsoft.Graph/Generated/Models/SystemFacet.cs
+++ b/src/Microsoft.Graph/Generated/Models/SystemFacet.cs
@@ -52,7 +52,7 @@ public SystemFacet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.SystemFacet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.SystemFacet();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TabUpdatedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TabUpdatedEventMessageDetail.cs
index 0ef147b2a50..f0549d222d1 100644
--- a/src/Microsoft.Graph/Generated/Models/TabUpdatedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TabUpdatedEventMessageDetail.cs
@@ -58,7 +58,7 @@ public TabUpdatedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TabUpdatedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TabUpdatedEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("tabId", TabId);
diff --git a/src/Microsoft.Graph/Generated/Models/TargetApplicationOwners.cs b/src/Microsoft.Graph/Generated/Models/TargetApplicationOwners.cs
index a007bb0b654..1a554218826 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetApplicationOwners.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetApplicationOwners.cs
@@ -26,7 +26,7 @@ public TargetApplicationOwners() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetApplicationOwners CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetApplicationOwners();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetDeviceGroup.cs b/src/Microsoft.Graph/Generated/Models/TargetDeviceGroup.cs
index 53c9f97cbcd..ffea838ed3f 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetDeviceGroup.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetDeviceGroup.cs
@@ -35,7 +35,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetDeviceGroup CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetDeviceGroup();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetDeviceGroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TargetDeviceGroupCollectionResponse.cs
index 71ec3d3154c..bcd35044163 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetDeviceGroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetDeviceGroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TargetDeviceGroupCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetDeviceGroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetDeviceGroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetDeviceGroup>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetManager.cs b/src/Microsoft.Graph/Generated/Models/TargetManager.cs
index 9129167d2ee..dae7867d075 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetManager.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetManager.cs
@@ -32,7 +32,7 @@ public TargetManager() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetManager CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetManager();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("managerLevel", ManagerLevel);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetResource.cs b/src/Microsoft.Graph/Generated/Models/TargetResource.cs
index 51e3360e8a4..f6031b40055 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetResource.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetResource.cs
@@ -138,7 +138,7 @@ public TargetResource()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TargetResource CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetResource();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.GroupType>("groupType", GroupType);
             writer.WriteStringValue("id", Id);
diff --git a/src/Microsoft.Graph/Generated/Models/TargetUserSponsors.cs b/src/Microsoft.Graph/Generated/Models/TargetUserSponsors.cs
index 700f7b32ad0..43a13f6e776 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetUserSponsors.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetUserSponsors.cs
@@ -26,7 +26,7 @@ public TargetUserSponsors() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetUserSponsors CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetUserSponsors();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfiguration.cs b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfiguration.cs
index 2a241cf0e44..ad3f77583db 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfiguration.cs
@@ -87,7 +87,7 @@ public TargetedManagedAppConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetedManagedAppConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetedManagedAppConfiguration();
         }
         /// <summary>
@@ -111,7 +111,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedMobileApp>("apps", Apps);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment>("assignments", Assignments);
diff --git a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfigurationCollectionResponse.cs
index 002964ffd10..7acab7ceb9d 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TargetedManagedAppConfigurationCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetedManagedAppConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetedManagedAppConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetedManagedAppConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignment.cs b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignment.cs
index f6087e0cada..845e0e426df 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignment.cs
@@ -36,7 +36,7 @@ public partial class TargetedManagedAppPolicyAssignment : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignmentCollectionResponse.cs
index e9a94aaf1b8..5a6ac7d99ee 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppPolicyAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TargetedManagedAppPolicyAssignmentCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppProtection.cs b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppProtection.cs
index 25440f1b115..38c323b5bd9 100644
--- a/src/Microsoft.Graph/Generated/Models/TargetedManagedAppProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/TargetedManagedAppProtection.cs
@@ -49,7 +49,7 @@ public TargetedManagedAppProtection() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TargetedManagedAppProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment>("assignments", Assignments);
             writer.WriteBoolValue("isAssigned", IsAssigned);
diff --git a/src/Microsoft.Graph/Generated/Models/TaskFileAttachment.cs b/src/Microsoft.Graph/Generated/Models/TaskFileAttachment.cs
index 0e314f463af..d4e61bac5e9 100644
--- a/src/Microsoft.Graph/Generated/Models/TaskFileAttachment.cs
+++ b/src/Microsoft.Graph/Generated/Models/TaskFileAttachment.cs
@@ -42,7 +42,7 @@ public TaskFileAttachment() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TaskFileAttachment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TaskFileAttachment();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("contentBytes", ContentBytes);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Team.cs b/src/Microsoft.Graph/Generated/Models/Team.cs
index 9dcad7ba89b..3f1da975356 100644
--- a/src/Microsoft.Graph/Generated/Models/Team.cs
+++ b/src/Microsoft.Graph/Generated/Models/Team.cs
@@ -443,7 +443,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Team CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Team();
         }
         /// <summary>
@@ -491,7 +491,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Channel>("allChannels", AllChannels);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Channel>("channels", Channels);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamArchivedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamArchivedEventMessageDetail.cs
index d0f009558cc..b8b89bc2205 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamArchivedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamArchivedEventMessageDetail.cs
@@ -58,7 +58,7 @@ public TeamArchivedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamArchivedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamArchivedEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamId", TeamId);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamCollectionResponse.cs
index 1de6506eff5..939392ad983 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Team>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamCreatedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamCreatedEventMessageDetail.cs
index edb5f7f9c24..5cbeb37e76a 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamCreatedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamCreatedEventMessageDetail.cs
@@ -90,7 +90,7 @@ public TeamCreatedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamCreatedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamCreatedEventMessageDetail();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamDescription", TeamDescription);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamDescriptionUpdatedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamDescriptionUpdatedEventMessageDetail.cs
index af5195aea2a..53f66db2614 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamDescriptionUpdatedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamDescriptionUpdatedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public TeamDescriptionUpdatedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamDescriptionUpdatedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamDescriptionUpdatedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamDescription", TeamDescription);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamFunSettings.cs b/src/Microsoft.Graph/Generated/Models/TeamFunSettings.cs
index 3f5193d697c..6044fb727ac 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamFunSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamFunSettings.cs
@@ -76,7 +76,7 @@ public TeamFunSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamFunSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamFunSettings();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowCustomMemes", AllowCustomMemes);
             writer.WriteBoolValue("allowGiphy", AllowGiphy);
             writer.WriteBoolValue("allowStickersAndMemes", AllowStickersAndMemes);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamGuestSettings.cs b/src/Microsoft.Graph/Generated/Models/TeamGuestSettings.cs
index 13ea2ed0e67..8e03c23094c 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamGuestSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamGuestSettings.cs
@@ -64,7 +64,7 @@ public TeamGuestSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamGuestSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamGuestSettings();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowCreateUpdateChannels", AllowCreateUpdateChannels);
             writer.WriteBoolValue("allowDeleteChannels", AllowDeleteChannels);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamInfo.cs b/src/Microsoft.Graph/Generated/Models/TeamInfo.cs
index 8f04f230da7..61c04118959 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamInfo.cs
@@ -67,7 +67,7 @@ public string TenantId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -95,7 +95,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Team>("team", Team);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamJoiningDisabledEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamJoiningDisabledEventMessageDetail.cs
index 0dd9cff064d..9003b818d69 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamJoiningDisabledEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamJoiningDisabledEventMessageDetail.cs
@@ -58,7 +58,7 @@ public TeamJoiningDisabledEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamJoiningDisabledEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamJoiningDisabledEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamId", TeamId);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamJoiningEnabledEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamJoiningEnabledEventMessageDetail.cs
index 082437bab1b..3cc57fb1597 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamJoiningEnabledEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamJoiningEnabledEventMessageDetail.cs
@@ -58,7 +58,7 @@ public TeamJoiningEnabledEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamJoiningEnabledEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamJoiningEnabledEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamId", TeamId);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamMemberSettings.cs b/src/Microsoft.Graph/Generated/Models/TeamMemberSettings.cs
index 556ed9612fb..12a4db1562d 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamMemberSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamMemberSettings.cs
@@ -88,7 +88,7 @@ public TeamMemberSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamMemberSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamMemberSettings();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowAddRemoveApps", AllowAddRemoveApps);
             writer.WriteBoolValue("allowCreatePrivateChannels", AllowCreatePrivateChannels);
             writer.WriteBoolValue("allowCreateUpdateChannels", AllowCreateUpdateChannels);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamMembersNotificationRecipient.cs b/src/Microsoft.Graph/Generated/Models/TeamMembersNotificationRecipient.cs
index 8a83448cfba..5bc9b27c5f8 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamMembersNotificationRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamMembersNotificationRecipient.cs
@@ -42,7 +42,7 @@ public TeamMembersNotificationRecipient() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamMembersNotificationRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamMembersNotificationRecipient();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("teamId", TeamId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamMessagingSettings.cs b/src/Microsoft.Graph/Generated/Models/TeamMessagingSettings.cs
index 634a144ad37..92a33556e20 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamMessagingSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamMessagingSettings.cs
@@ -82,7 +82,7 @@ public TeamMessagingSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamMessagingSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamMessagingSettings();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowChannelMentions", AllowChannelMentions);
             writer.WriteBoolValue("allowOwnerDeleteMessages", AllowOwnerDeleteMessages);
             writer.WriteBoolValue("allowTeamMentions", AllowTeamMentions);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamRenamedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamRenamedEventMessageDetail.cs
index 22539a16128..226eb72be0d 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamRenamedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamRenamedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public TeamRenamedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamRenamedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamRenamedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamDisplayName", TeamDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamSummary.cs b/src/Microsoft.Graph/Generated/Models/TeamSummary.cs
index 09fb35326de..4c3050576c6 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamSummary.cs
@@ -70,7 +70,7 @@ public TeamSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamSummary();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("guestsCount", GuestsCount);
             writer.WriteIntValue("membersCount", MembersCount);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamUnarchivedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamUnarchivedEventMessageDetail.cs
index 353f1331d40..22fe433fd05 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamUnarchivedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamUnarchivedEventMessageDetail.cs
@@ -58,7 +58,7 @@ public TeamUnarchivedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamUnarchivedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamUnarchivedEventMessageDetail();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamId", TeamId);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsApp.cs b/src/Microsoft.Graph/Generated/Models/TeamsApp.cs
index 8ef485a6e0b..d9554541b80 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsApp.cs
@@ -73,7 +73,7 @@ public string ExternalId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsApp();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsAppDefinition>("appDefinitions", AppDefinitions);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppAuthorization.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppAuthorization.cs
index a39f2bb68be..962a2e01d03 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppAuthorization.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppAuthorization.cs
@@ -84,7 +84,7 @@ public TeamsAppAuthorization()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamsAppAuthorization CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppAuthorization();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clientAppId", ClientAppId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("requiredPermissionSet", RequiredPermissionSet);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppCollectionResponse.cs
index 7c8b999dbdf..df36343f919 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamsAppCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppDefinition.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppDefinition.cs
index 096d879d898..a77d3c7b988 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppDefinition.cs
@@ -159,7 +159,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppDefinition();
         }
         /// <summary>
@@ -188,7 +188,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppAuthorization>("authorization", Authorization);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkBot>("bot", Bot);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppDefinitionCollectionResponse.cs
index 8ab1108ab23..82ea2636e1a 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamsAppDefinitionCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsAppDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppInstallation.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppInstallation.cs
index 524ac5f9062..957defc3c47 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppInstallation.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppInstallation.cs
@@ -67,7 +67,7 @@ public partial class TeamsAppInstallation : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppInstallation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsApp>("teamsApp", TeamsApp);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppInstallationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppInstallationCollectionResponse.cs
index f2948c05da7..24da8af9d19 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppInstallationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppInstallationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamsAppInstallationCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppInstallationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppInstallationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsAppInstallation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppInstalledEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppInstalledEventMessageDetail.cs
index 06a2d14f0c6..83d5d8f9b2e 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppInstalledEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppInstalledEventMessageDetail.cs
@@ -74,7 +74,7 @@ public TeamsAppInstalledEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppInstalledEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppInstalledEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamsAppDisplayName", TeamsAppDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppPermissionSet.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppPermissionSet.cs
index f36618c1e58..6d2596e8dbe 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppPermissionSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppPermissionSet.cs
@@ -68,7 +68,7 @@ public TeamsAppPermissionSet()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamsAppPermissionSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppPermissionSet();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsAppResourceSpecificPermission>("resourceSpecificPermissions", ResourceSpecificPermissions);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppRemovedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppRemovedEventMessageDetail.cs
index 1e0c2cf8ae3..4517947863f 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppRemovedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppRemovedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public TeamsAppRemovedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppRemovedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppRemovedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamsAppDisplayName", TeamsAppDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppResourceSpecificPermission.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppResourceSpecificPermission.cs
index f7e7d1f4f24..2b5d716b647 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppResourceSpecificPermission.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppResourceSpecificPermission.cs
@@ -74,7 +74,7 @@ public TeamsAppResourceSpecificPermission()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamsAppResourceSpecificPermission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppResourceSpecificPermission();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TeamsAppResourceSpecificPermissionType>("permissionType", PermissionType);
             writer.WriteStringValue("permissionValue", PermissionValue);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppSettings.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppSettings.cs
index dad66ad5b2e..ea1f91618cf 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppSettings.cs
@@ -31,7 +31,7 @@ public bool? IsUserPersonalScopeResourceSpecificConsentEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppSettings();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowUserRequestsForAppAccess", AllowUserRequestsForAppAccess);
             writer.WriteBoolValue("isUserPersonalScopeResourceSpecificConsentEnabled", IsUserPersonalScopeResourceSpecificConsentEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAppUpgradedEventMessageDetail.cs b/src/Microsoft.Graph/Generated/Models/TeamsAppUpgradedEventMessageDetail.cs
index e231af9795e..f8b328ab618 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAppUpgradedEventMessageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAppUpgradedEventMessageDetail.cs
@@ -74,7 +74,7 @@ public TeamsAppUpgradedEventMessageDetail() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAppUpgradedEventMessageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAppUpgradedEventMessageDetail();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentitySet>("initiator", Initiator);
             writer.WriteStringValue("teamsAppDisplayName", TeamsAppDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperation.cs b/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperation.cs
index c6be2a52098..a36020c1a4d 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperation.cs
@@ -97,7 +97,7 @@ public string TargetResourceLocation
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAsyncOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAsyncOperation();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("attemptsCount", AttemptsCount);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperationCollectionResponse.cs
index 8968b69555f..af34c29440a 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsAsyncOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamsAsyncOperationCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsAsyncOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsAsyncOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsAsyncOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsLicensingDetails.cs b/src/Microsoft.Graph/Generated/Models/TeamsLicensingDetails.cs
index 90db7e4e9e3..bf50fee53f3 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsLicensingDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsLicensingDetails.cs
@@ -25,7 +25,7 @@ public bool? HasTeamsLicense
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsLicensingDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsLicensingDetails();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("hasTeamsLicense", HasTeamsLicense);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsTab.cs b/src/Microsoft.Graph/Generated/Models/TeamsTab.cs
index 3f649598c55..efd838d3846 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsTab.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsTab.cs
@@ -83,7 +83,7 @@ public string WebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsTab CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsTab();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsTabConfiguration>("configuration", Configuration);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsTabCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamsTabCollectionResponse.cs
index d502519e3b7..af3c75577ad 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsTabCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsTabCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamsTabCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsTabCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsTabCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsTab>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsTabConfiguration.cs b/src/Microsoft.Graph/Generated/Models/TeamsTabConfiguration.cs
index e00578a8f20..8d7b8714db8 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsTabConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsTabConfiguration.cs
@@ -116,7 +116,7 @@ public TeamsTabConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamsTabConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsTabConfiguration();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentUrl", ContentUrl);
             writer.WriteStringValue("entityId", EntityId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsTemplate.cs b/src/Microsoft.Graph/Generated/Models/TeamsTemplate.cs
index 6945f1021d6..93cdd0fb0b3 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsTemplate.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsTemplate.cs
@@ -19,7 +19,7 @@ public partial class TeamsTemplate : global::Microsoft.Graph.Models.Entity, IPar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsTemplate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsTemplate();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamsTemplateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamsTemplateCollectionResponse.cs
index e5c4aa73b1e..5fa204b036f 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamsTemplateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamsTemplateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamsTemplateCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamsTemplateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamsTemplateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamsTemplate>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Teamwork.cs b/src/Microsoft.Graph/Generated/Models/Teamwork.cs
index 4048d18d4e1..70d07fb74db 100644
--- a/src/Microsoft.Graph/Generated/Models/Teamwork.cs
+++ b/src/Microsoft.Graph/Generated/Models/Teamwork.cs
@@ -105,7 +105,7 @@ public string Region
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Teamwork CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Teamwork();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeletedChat>("deletedChats", DeletedChats);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeletedTeam>("deletedTeams", DeletedTeams);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkActivityTopic.cs b/src/Microsoft.Graph/Generated/Models/TeamworkActivityTopic.cs
index deb164f0e68..4afa03fc182 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkActivityTopic.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkActivityTopic.cs
@@ -90,7 +90,7 @@ public TeamworkActivityTopic()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamworkActivityTopic CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkActivityTopic();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TeamworkActivityTopicSource>("source", Source);
             writer.WriteStringValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkApplicationIdentity.cs b/src/Microsoft.Graph/Generated/Models/TeamworkApplicationIdentity.cs
index 693eed0ccae..ce736eb581c 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkApplicationIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkApplicationIdentity.cs
@@ -32,7 +32,7 @@ public TeamworkApplicationIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkApplicationIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkApplicationIdentity();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TeamworkApplicationIdentityType>("applicationIdentityType", ApplicationIdentityType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkBot.cs b/src/Microsoft.Graph/Generated/Models/TeamworkBot.cs
index 88889467205..de6a67d189f 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkBot.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkBot.cs
@@ -19,7 +19,7 @@ public partial class TeamworkBot : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkBot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkBot();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkConversationIdentity.cs b/src/Microsoft.Graph/Generated/Models/TeamworkConversationIdentity.cs
index 662c20f5936..d376bfe819a 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkConversationIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkConversationIdentity.cs
@@ -32,7 +32,7 @@ public TeamworkConversationIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkConversationIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkConversationIdentity();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TeamworkConversationIdentityType>("conversationIdentityType", ConversationIdentityType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkHostedContent.cs b/src/Microsoft.Graph/Generated/Models/TeamworkHostedContent.cs
index b0ab46d5f00..cb0a8f0b27a 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkHostedContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkHostedContent.cs
@@ -51,7 +51,7 @@ public string ContentType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkHostedContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -77,7 +77,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteByteArrayValue("contentBytes", ContentBytes);
             writer.WriteStringValue("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkNotificationRecipient.cs b/src/Microsoft.Graph/Generated/Models/TeamworkNotificationRecipient.cs
index 46bc2e02384..adbd674781a 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkNotificationRecipient.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkNotificationRecipient.cs
@@ -52,7 +52,7 @@ public TeamworkNotificationRecipient()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamworkNotificationRecipient CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkOnlineMeetingInfo.cs b/src/Microsoft.Graph/Generated/Models/TeamworkOnlineMeetingInfo.cs
index 44209d25b1f..20576f4a9fc 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkOnlineMeetingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkOnlineMeetingInfo.cs
@@ -100,7 +100,7 @@ public TeamworkOnlineMeetingInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeamworkOnlineMeetingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkOnlineMeetingInfo();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("calendarEventId", CalendarEventId);
             writer.WriteStringValue("joinWebUrl", JoinWebUrl);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkTag.cs b/src/Microsoft.Graph/Generated/Models/TeamworkTag.cs
index 5d927839347..6aa582a21ab 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkTag.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkTag.cs
@@ -95,7 +95,7 @@ public string TeamId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkTag CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkTag();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkTagCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamworkTagCollectionResponse.cs
index 44651c19242..259a4ea8e51 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkTagCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkTagCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamworkTagCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkTagCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkTagCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamworkTag>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkTagIdentity.cs b/src/Microsoft.Graph/Generated/Models/TeamworkTagIdentity.cs
index dbc97ffe99a..fe007cdaf89 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkTagIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkTagIdentity.cs
@@ -26,7 +26,7 @@ public TeamworkTagIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkTagIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkTagIdentity();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkTagMember.cs b/src/Microsoft.Graph/Generated/Models/TeamworkTagMember.cs
index b65c6258bcc..d75b4b6eaba 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkTagMember.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkTagMember.cs
@@ -67,7 +67,7 @@ public string UserId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkTagMember CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkTagMember();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("tenantId", TenantId);
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkTagMemberCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TeamworkTagMemberCollectionResponse.cs
index fe54b3c842f..31a93e09d20 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkTagMemberCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkTagMemberCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TeamworkTagMemberCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkTagMemberCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkTagMemberCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TeamworkTagMember>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeamworkUserIdentity.cs b/src/Microsoft.Graph/Generated/Models/TeamworkUserIdentity.cs
index bc1650e76cf..10188090de0 100644
--- a/src/Microsoft.Graph/Generated/Models/TeamworkUserIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeamworkUserIdentity.cs
@@ -32,7 +32,7 @@ public TeamworkUserIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeamworkUserIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeamworkUserIdentity();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TeamworkUserIdentityType>("userIdentityType", UserIdentityType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartner.cs b/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartner.cs
index bb3250054ca..cc5704358bc 100644
--- a/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartner.cs
+++ b/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartner.cs
@@ -70,7 +70,7 @@ public string Url
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TelecomExpenseManagementPartner CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TelecomExpenseManagementPartner();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("appAuthorized", AppAuthorized);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartnerCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartnerCollectionResponse.cs
index 8c63b268221..8a6aeb69c39 100644
--- a/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartnerCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TelecomExpenseManagementPartnerCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TelecomExpenseManagementPartnerCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TelecomExpenseManagementPartnerCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TelecomExpenseManagementPartnerCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TelecomExpenseManagementPartner>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceAudioQuality.cs b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceAudioQuality.cs
index c63be40eb4b..b3cdf6a08c0 100644
--- a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceAudioQuality.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceAudioQuality.cs
@@ -26,7 +26,7 @@ public TeleconferenceDeviceAudioQuality() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeleconferenceDeviceAudioQuality CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeleconferenceDeviceAudioQuality();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceMediaQuality.cs b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceMediaQuality.cs
index 7e0143eb572..32f7d440cbf 100644
--- a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceMediaQuality.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceMediaQuality.cs
@@ -198,7 +198,7 @@ public TeleconferenceDeviceMediaQuality()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeleconferenceDeviceMediaQuality CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -246,7 +246,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeSpanValue("averageInboundJitter", AverageInboundJitter);
             writer.WriteDoubleValue("averageInboundPacketLossRateInPercentage", AverageInboundPacketLossRateInPercentage);
             writer.WriteTimeSpanValue("averageInboundRoundTripDelay", AverageInboundRoundTripDelay);
diff --git a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceQuality.cs b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceQuality.cs
index f930ce24eb9..72d68b433f9 100644
--- a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceQuality.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceQuality.cs
@@ -182,7 +182,7 @@ public TeleconferenceDeviceQuality()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TeleconferenceDeviceQuality CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeleconferenceDeviceQuality();
         }
         /// <summary>
@@ -212,7 +212,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteGuidValue("callChainId", CallChainId);
             writer.WriteStringValue("cloudServiceDeploymentEnvironment", CloudServiceDeploymentEnvironment);
             writer.WriteStringValue("cloudServiceDeploymentId", CloudServiceDeploymentId);
diff --git a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceScreenSharingQuality.cs b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceScreenSharingQuality.cs
index 6c137b95a92..4c3b5d0df02 100644
--- a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceScreenSharingQuality.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceScreenSharingQuality.cs
@@ -19,7 +19,7 @@ public partial class TeleconferenceDeviceScreenSharingQuality : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeleconferenceDeviceScreenSharingQuality CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TeleconferenceDeviceScreenSharingQuality();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceVideoQuality.cs b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceVideoQuality.cs
index 1fa0470aa6a..22c3300090b 100644
--- a/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceVideoQuality.cs
+++ b/src/Microsoft.Graph/Generated/Models/TeleconferenceDeviceVideoQuality.cs
@@ -50,7 +50,7 @@ public TeleconferenceDeviceVideoQuality() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TeleconferenceDeviceVideoQuality CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("averageInboundBitRate", AverageInboundBitRate);
             writer.WriteDoubleValue("averageInboundFrameRate", AverageInboundFrameRate);
diff --git a/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethod.cs
index 1312a9725c1..d206381da0d 100644
--- a/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethod.cs
@@ -88,7 +88,7 @@ public TemporaryAccessPassAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteBoolValue("isUsable", IsUsable);
diff --git a/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodCollectionResponse.cs
index f525fbcf349..31d305541d2 100644
--- a/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TemporaryAccessPassAuthenticationMethodCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodConfiguration.cs
index 2ec414888be..f594c428254 100644
--- a/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/TemporaryAccessPassAuthenticationMethodConfiguration.cs
@@ -72,7 +72,7 @@ public TemporaryAccessPassAuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("defaultLength", DefaultLength);
             writer.WriteIntValue("defaultLifetimeInMinutes", DefaultLifetimeInMinutes);
diff --git a/src/Microsoft.Graph/Generated/Models/TenantAppManagementPolicy.cs b/src/Microsoft.Graph/Generated/Models/TenantAppManagementPolicy.cs
index 06c35867f5d..386b10da2cf 100644
--- a/src/Microsoft.Graph/Generated/Models/TenantAppManagementPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/TenantAppManagementPolicy.cs
@@ -64,7 +64,7 @@ public TenantAppManagementPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TenantAppManagementPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TenantAppManagementPolicy();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppManagementApplicationConfiguration>("applicationRestrictions", ApplicationRestrictions);
             writer.WriteBoolValue("isEnabled", IsEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/TenantDataSecurityAndGovernance.cs b/src/Microsoft.Graph/Generated/Models/TenantDataSecurityAndGovernance.cs
index 55e23c16ff5..d0f932f521d 100644
--- a/src/Microsoft.Graph/Generated/Models/TenantDataSecurityAndGovernance.cs
+++ b/src/Microsoft.Graph/Generated/Models/TenantDataSecurityAndGovernance.cs
@@ -42,7 +42,7 @@ public TenantDataSecurityAndGovernance() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TenantDataSecurityAndGovernance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TenantDataSecurityAndGovernance();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TenantProtectionScopeContainer>("protectionScopes", ProtectionScopes);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TenantInformation.cs b/src/Microsoft.Graph/Generated/Models/TenantInformation.cs
index 6c69d521d99..bd10c5cb037 100644
--- a/src/Microsoft.Graph/Generated/Models/TenantInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/TenantInformation.cs
@@ -116,7 +116,7 @@ public TenantInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TenantInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TenantInformation();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("defaultDomainName", DefaultDomainName);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("federationBrandName", FederationBrandName);
diff --git a/src/Microsoft.Graph/Generated/Models/TenantProtectionScopeContainer.cs b/src/Microsoft.Graph/Generated/Models/TenantProtectionScopeContainer.cs
index 066ccc2dd1c..b3654884353 100644
--- a/src/Microsoft.Graph/Generated/Models/TenantProtectionScopeContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/TenantProtectionScopeContainer.cs
@@ -19,7 +19,7 @@ public partial class TenantProtectionScopeContainer : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TenantProtectionScopeContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TenantProtectionScopeContainer();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TenantRelationship.cs b/src/Microsoft.Graph/Generated/Models/TenantRelationship.cs
index b60e1399ac0..1fb17e1738a 100644
--- a/src/Microsoft.Graph/Generated/Models/TenantRelationship.cs
+++ b/src/Microsoft.Graph/Generated/Models/TenantRelationship.cs
@@ -100,7 +100,7 @@ public TenantRelationship()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TenantRelationship CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TenantRelationship();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminCustomer>("delegatedAdminCustomers", DelegatedAdminCustomers);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DelegatedAdminRelationship>("delegatedAdminRelationships", DelegatedAdminRelationships);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.MultiTenantOrganization>("multiTenantOrganization", MultiTenantOrganization);
diff --git a/src/Microsoft.Graph/Generated/Models/TenantScope.cs b/src/Microsoft.Graph/Generated/Models/TenantScope.cs
index 79bd4c9c137..b2ed76c25e8 100644
--- a/src/Microsoft.Graph/Generated/Models/TenantScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/TenantScope.cs
@@ -26,7 +26,7 @@ public TenantScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TenantScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TenantScope();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TermColumn.cs b/src/Microsoft.Graph/Generated/Models/TermColumn.cs
index b0c61795ce1..13f909d0720 100644
--- a/src/Microsoft.Graph/Generated/Models/TermColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermColumn.cs
@@ -97,7 +97,7 @@ public TermColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TermColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermColumn();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowMultipleValues", AllowMultipleValues);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TermStore.Term>("parentTerm", ParentTerm);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/Group.cs b/src/Microsoft.Graph/Generated/Models/TermStore/Group.cs
index 5f0c81d7066..b1e1b98b712 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/Group.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/Group.cs
@@ -95,7 +95,7 @@ public string ParentSiteId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.Group CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.Group();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/GroupCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermStore/GroupCollectionResponse.cs
index 964a58d511c..49e7c5d46c5 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/GroupCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/GroupCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class GroupCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.GroupCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.GroupCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Group>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedDescription.cs b/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedDescription.cs
index 9134a7bde3c..83c93649ea6 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedDescription.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedDescription.cs
@@ -84,7 +84,7 @@ public LocalizedDescription()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TermStore.LocalizedDescription CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.LocalizedDescription();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("languageTag", LanguageTag);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedLabel.cs b/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedLabel.cs
index 99e120a9674..c5f83daf57f 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedLabel.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedLabel.cs
@@ -90,7 +90,7 @@ public LocalizedLabel()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TermStore.LocalizedLabel CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.LocalizedLabel();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isDefault", IsDefault);
             writer.WriteStringValue("languageTag", LanguageTag);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedName.cs b/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedName.cs
index dfeecf2bb4c..64ac7e8ee3f 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedName.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/LocalizedName.cs
@@ -84,7 +84,7 @@ public LocalizedName()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TermStore.LocalizedName CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.LocalizedName();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("languageTag", LanguageTag);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/Relation.cs b/src/Microsoft.Graph/Generated/Models/TermStore/Relation.cs
index cc846f0a619..9e706f2f39c 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/Relation.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/Relation.cs
@@ -73,7 +73,7 @@ public partial class Relation : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.Relation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.Relation();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TermStore.Term>("fromTerm", FromTerm);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TermStore.RelationType>("relationship", Relationship);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/RelationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermStore/RelationCollectionResponse.cs
index a6ec4e81a46..df24a304ea2 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/RelationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/RelationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class RelationCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.RelationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.RelationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Relation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/Set.cs b/src/Microsoft.Graph/Generated/Models/TermStore/Set.cs
index 56571250974..e771ac0e335 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/Set.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/Set.cs
@@ -137,7 +137,7 @@ public string Description
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.Set CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.Set();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Term>("children", Children);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/SetCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermStore/SetCollectionResponse.cs
index a7ef73f1e75..e7fa1e2c92d 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/SetCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/SetCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class SetCollectionResponse : global::Microsoft.Graph.Models.Base
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.SetCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.SetCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Set>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/Store.cs b/src/Microsoft.Graph/Generated/Models/TermStore/Store.cs
index 22bca39d0ca..073f3e376a2 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/Store.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/Store.cs
@@ -83,7 +83,7 @@ public List<string> LanguageTags
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.Store CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.Store();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("defaultLanguageTag", DefaultLanguageTag);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Group>("groups", Groups);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/StoreCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermStore/StoreCollectionResponse.cs
index 91eb82334ae..7310053a4c0 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/StoreCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/StoreCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class StoreCollectionResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.StoreCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.StoreCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Store>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/Term.cs b/src/Microsoft.Graph/Generated/Models/TermStore/Term.cs
index 9fafbf20432..60fdc4ae4d9 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/Term.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/Term.cs
@@ -127,7 +127,7 @@ public DateTimeOffset? LastModifiedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.Term CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.Term();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Term>("children", Children);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/TermStore/TermCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermStore/TermCollectionResponse.cs
index 4887523f55b..321f0183345 100644
--- a/src/Microsoft.Graph/Generated/Models/TermStore/TermCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermStore/TermCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TermCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermStore.TermCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermStore.TermCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermStore.Term>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermsAndConditions.cs b/src/Microsoft.Graph/Generated/Models/TermsAndConditions.cs
index 90aebeb8671..b5d9e3d210c 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsAndConditions.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsAndConditions.cs
@@ -150,7 +150,7 @@ public int? Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermsAndConditions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsAndConditions();
         }
         /// <summary>
@@ -179,7 +179,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("acceptanceStatement", AcceptanceStatement);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus>("acceptanceStatuses", AcceptanceStatuses);
diff --git a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatus.cs b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatus.cs
index 2bf7808075a..3525d726d02 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatus.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatus.cs
@@ -80,7 +80,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("acceptedDateTime", AcceptedDateTime);
             writer.WriteIntValue("acceptedVersion", AcceptedVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatusCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatusCollectionResponse.cs
index ca9c400fcc4..1647b81af6f 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatusCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAcceptanceStatusCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TermsAndConditionsAcceptanceStatusCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatusCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatusCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermsAndConditionsAcceptanceStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignment.cs b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignment.cs
index c0256a5cc0c..ad6038cbb39 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignment.cs
@@ -36,7 +36,7 @@ public partial class TermsAndConditionsAssignment : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermsAndConditionsAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsAndConditionsAssignment();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceAndAppManagementAssignmentTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignmentCollectionResponse.cs
index 5c717b49e13..fcbd053776b 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TermsAndConditionsAssignmentCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermsAndConditionsAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsAndConditionsAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermsAndConditionsAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsCollectionResponse.cs
index 89f834b57a0..012eaa0a936 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsAndConditionsCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsAndConditionsCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TermsAndConditionsCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermsAndConditionsCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsAndConditionsCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TermsAndConditions>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TermsExpiration.cs b/src/Microsoft.Graph/Generated/Models/TermsExpiration.cs
index e2545946ddc..ea366c7ffc6 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsExpiration.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsExpiration.cs
@@ -64,7 +64,7 @@ public TermsExpiration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TermsExpiration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsExpiration();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeSpanValue("frequency", Frequency);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/TermsOfUseContainer.cs b/src/Microsoft.Graph/Generated/Models/TermsOfUseContainer.cs
index 55b479c5d6f..a7c097983f4 100644
--- a/src/Microsoft.Graph/Generated/Models/TermsOfUseContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/TermsOfUseContainer.cs
@@ -51,7 +51,7 @@ public partial class TermsOfUseContainer : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TermsOfUseContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TermsOfUseContainer();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AgreementAcceptance>("agreementAcceptances", AgreementAcceptances);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Agreement>("agreements", Agreements);
diff --git a/src/Microsoft.Graph/Generated/Models/TextColumn.cs b/src/Microsoft.Graph/Generated/Models/TextColumn.cs
index 6690c54b189..e130cd213d0 100644
--- a/src/Microsoft.Graph/Generated/Models/TextColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/TextColumn.cs
@@ -92,7 +92,7 @@ public TextColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TextColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TextColumn();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowMultipleLines", AllowMultipleLines);
             writer.WriteBoolValue("appendChangesToExistingText", AppendChangesToExistingText);
             writer.WriteIntValue("linesForEditing", LinesForEditing);
diff --git a/src/Microsoft.Graph/Generated/Models/TextContent.cs b/src/Microsoft.Graph/Generated/Models/TextContent.cs
index 827591a31a6..a38de38e642 100644
--- a/src/Microsoft.Graph/Generated/Models/TextContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/TextContent.cs
@@ -42,7 +42,7 @@ public TextContent() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TextContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TextContent();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("data", Data);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TextWebPart.cs b/src/Microsoft.Graph/Generated/Models/TextWebPart.cs
index cbca2163871..b7aae299756 100644
--- a/src/Microsoft.Graph/Generated/Models/TextWebPart.cs
+++ b/src/Microsoft.Graph/Generated/Models/TextWebPart.cs
@@ -42,7 +42,7 @@ public TextWebPart() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TextWebPart CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TextWebPart();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("innerHtml", InnerHtml);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequest.cs b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequest.cs
index 939cc6e5260..34bf963490d 100644
--- a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequest.cs
@@ -87,7 +87,7 @@ public DateTimeOffset? CreatedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ThreatAssessmentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -122,7 +122,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ThreatCategory>("category", Category);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ThreatAssessmentContentType>("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequestCollectionResponse.cs
index 4276477c57c..30785886772 100644
--- a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ThreatAssessmentRequestCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ThreatAssessmentRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ThreatAssessmentRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ThreatAssessmentRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResult.cs b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResult.cs
index 79d8ca2b101..846ab7ae638 100644
--- a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResult.cs
@@ -47,7 +47,7 @@ public string Message
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ThreatAssessmentResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ThreatAssessmentResult();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteStringValue("message", Message);
diff --git a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResultCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResultCollectionResponse.cs
index 9cd4657ac2c..1ac1b817912 100644
--- a/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResultCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ThreatAssessmentResultCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ThreatAssessmentResultCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ThreatAssessmentResultCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ThreatAssessmentResultCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ThreatAssessmentResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Thumbnail.cs b/src/Microsoft.Graph/Generated/Models/Thumbnail.cs
index 602fe765356..f94b4458eb7 100644
--- a/src/Microsoft.Graph/Generated/Models/Thumbnail.cs
+++ b/src/Microsoft.Graph/Generated/Models/Thumbnail.cs
@@ -112,7 +112,7 @@ public Thumbnail()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Thumbnail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Thumbnail();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("content", Content);
             writer.WriteIntValue("height", Height);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/ThumbnailColumn.cs b/src/Microsoft.Graph/Generated/Models/ThumbnailColumn.cs
index 06dd4ac21f9..1d5677ef204 100644
--- a/src/Microsoft.Graph/Generated/Models/ThumbnailColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/ThumbnailColumn.cs
@@ -52,7 +52,7 @@ public ThumbnailColumn()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ThumbnailColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ThumbnailColumn();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ThumbnailSet.cs b/src/Microsoft.Graph/Generated/Models/ThumbnailSet.cs
index 4e73a42cac9..cdb619fa4db 100644
--- a/src/Microsoft.Graph/Generated/Models/ThumbnailSet.cs
+++ b/src/Microsoft.Graph/Generated/Models/ThumbnailSet.cs
@@ -83,7 +83,7 @@ public partial class ThumbnailSet : global::Microsoft.Graph.Models.Entity, IPars
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ThumbnailSet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ThumbnailSet();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Thumbnail>("large", Large);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Thumbnail>("medium", Medium);
diff --git a/src/Microsoft.Graph/Generated/Models/ThumbnailSetCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/ThumbnailSetCollectionResponse.cs
index 3841a74c995..8fc450f0798 100644
--- a/src/Microsoft.Graph/Generated/Models/ThumbnailSetCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/ThumbnailSetCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class ThumbnailSetCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.ThumbnailSetCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ThumbnailSetCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ThumbnailSet>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TicketInfo.cs b/src/Microsoft.Graph/Generated/Models/TicketInfo.cs
index 038f88ad32e..ec11960b11b 100644
--- a/src/Microsoft.Graph/Generated/Models/TicketInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/TicketInfo.cs
@@ -84,7 +84,7 @@ public TicketInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TicketInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TicketInfo();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("ticketNumber", TicketNumber);
             writer.WriteStringValue("ticketSystem", TicketSystem);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeCard.cs b/src/Microsoft.Graph/Generated/Models/TimeCard.cs
index d7247c6ea61..5ce5605824e 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeCard.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeCard.cs
@@ -134,7 +134,7 @@ public TimeCard() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeCard CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeCard();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeCardBreak>("breaks", Breaks);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeCardEvent>("clockInEvent", ClockInEvent);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeCardBreak.cs b/src/Microsoft.Graph/Generated/Models/TimeCardBreak.cs
index d85f958d49e..b43a11c9e70 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeCardBreak.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeCardBreak.cs
@@ -116,7 +116,7 @@ public TimeCardBreak()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeCardBreak CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeCardBreak();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("breakId", BreakId);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeCardEvent>("end", End);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeCardCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TimeCardCollectionResponse.cs
index b9c7be36585..2072131c824 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeCardCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeCardCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TimeCardCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeCardCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeCardCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeCard>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TimeCardEntry.cs b/src/Microsoft.Graph/Generated/Models/TimeCardEntry.cs
index dfcaa985f18..df34e6f3450 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeCardEntry.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeCardEntry.cs
@@ -100,7 +100,7 @@ public TimeCardEntry()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeCardEntry CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeCardEntry();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeCardBreak>("breaks", Breaks);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeCardEvent>("clockInEvent", ClockInEvent);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeCardEvent>("clockOutEvent", ClockOutEvent);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeCardEvent.cs b/src/Microsoft.Graph/Generated/Models/TimeCardEvent.cs
index 6ce1364845d..5d998927bf4 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeCardEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeCardEvent.cs
@@ -80,7 +80,7 @@ public TimeCardEvent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeCardEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeCardEvent();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("dateTime", DateTime);
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeClockSettings.cs b/src/Microsoft.Graph/Generated/Models/TimeClockSettings.cs
index fb756cec9e9..a2dafb49dd8 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeClockSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeClockSettings.cs
@@ -68,7 +68,7 @@ public TimeClockSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeClockSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeClockSettings();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.GeoCoordinates>("approvedLocation", ApprovedLocation);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeConstraint.cs b/src/Microsoft.Graph/Generated/Models/TimeConstraint.cs
index 7439e4486ac..c0ec7fd2b1b 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeConstraint.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeConstraint.cs
@@ -74,7 +74,7 @@ public TimeConstraint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeConstraint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeConstraint();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ActivityDomain>("activityDomain", ActivityDomain);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeSlot>("timeSlots", TimeSlots);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeOff.cs b/src/Microsoft.Graph/Generated/Models/TimeOff.cs
index f4aacf5d146..9dbad3d5016 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeOff.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeOff.cs
@@ -80,7 +80,7 @@ public TimeOff() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeOff CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeOff();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeOffItem>("draftTimeOff", DraftTimeOff);
             writer.WriteBoolValue("isStagedForDeletion", IsStagedForDeletion);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeOffCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TimeOffCollectionResponse.cs
index 9bde911d488..eeb20fd34e2 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeOffCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeOffCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TimeOffCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeOffCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeOffCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeOff>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TimeOffItem.cs b/src/Microsoft.Graph/Generated/Models/TimeOffItem.cs
index b4ee5555ddf..db2e6952aed 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeOffItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeOffItem.cs
@@ -35,7 +35,7 @@ public string TimeOffReasonId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeOffItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeOffItem();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("timeOffReasonId", TimeOffReasonId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TimeOffReason.cs b/src/Microsoft.Graph/Generated/Models/TimeOffReason.cs
index 2898825869c..e61f9d95960 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeOffReason.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeOffReason.cs
@@ -70,7 +70,7 @@ public TimeOffReason() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeOffReason CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeOffReason();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("code", Code);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeOffReasonCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TimeOffReasonCollectionResponse.cs
index 46b843c2597..a8724d4584a 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeOffReasonCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeOffReasonCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TimeOffReasonCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeOffReasonCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeOffReasonCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeOffReason>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TimeOffRequest.cs b/src/Microsoft.Graph/Generated/Models/TimeOffRequest.cs
index ddb4831c18a..17e74f78072 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeOffRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeOffRequest.cs
@@ -54,7 +54,7 @@ public TimeOffRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeOffRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeOffRequest();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeOffRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TimeOffRequestCollectionResponse.cs
index 3baee9ad5de..16e08cf91cc 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeOffRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeOffRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TimeOffRequestCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TimeOffRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeOffRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeOffRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TimePeriod.cs b/src/Microsoft.Graph/Generated/Models/TimePeriod.cs
index 24b4fac639d..c0d0a6a7f75 100644
--- a/src/Microsoft.Graph/Generated/Models/TimePeriod.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimePeriod.cs
@@ -64,7 +64,7 @@ public TimePeriod()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimePeriod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimePeriod();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeRange.cs b/src/Microsoft.Graph/Generated/Models/TimeRange.cs
index 5e2222ec8a1..22b9cdef956 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeRange.cs
@@ -65,7 +65,7 @@ public TimeRange()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeRange();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteTimeValue("endTime", EndTime);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteTimeValue("startTime", StartTime);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeSlot.cs b/src/Microsoft.Graph/Generated/Models/TimeSlot.cs
index 42a401fccf6..fb6903739b1 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeSlot.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeSlot.cs
@@ -84,7 +84,7 @@ public TimeSlot()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeSlot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeSlot();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("end", End);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("start", Start);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeZoneBase.cs b/src/Microsoft.Graph/Generated/Models/TimeZoneBase.cs
index d72592e42bd..4a974434763 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeZoneBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeZoneBase.cs
@@ -68,7 +68,7 @@ public TimeZoneBase()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeZoneBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/TimeZoneInformation.cs b/src/Microsoft.Graph/Generated/Models/TimeZoneInformation.cs
index 30c216beaef..0a072eb4f5d 100644
--- a/src/Microsoft.Graph/Generated/Models/TimeZoneInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/TimeZoneInformation.cs
@@ -84,7 +84,7 @@ public TimeZoneInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TimeZoneInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TimeZoneInformation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("alias", Alias);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/TitleArea.cs b/src/Microsoft.Graph/Generated/Models/TitleArea.cs
index ceb216f1af5..eecbf331bd9 100644
--- a/src/Microsoft.Graph/Generated/Models/TitleArea.cs
+++ b/src/Microsoft.Graph/Generated/Models/TitleArea.cs
@@ -152,7 +152,7 @@ public TitleArea()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TitleArea CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TitleArea();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("alternativeText", AlternativeText);
             writer.WriteBoolValue("enableGradientEffect", EnableGradientEffect);
             writer.WriteStringValue("imageWebUrl", ImageWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/Todo.cs b/src/Microsoft.Graph/Generated/Models/Todo.cs
index 41e2b4a6d59..bf80dc6a490 100644
--- a/src/Microsoft.Graph/Generated/Models/Todo.cs
+++ b/src/Microsoft.Graph/Generated/Models/Todo.cs
@@ -35,7 +35,7 @@ public partial class Todo : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Todo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Todo();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TodoTaskList>("lists", Lists);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TodoTask.cs b/src/Microsoft.Graph/Generated/Models/TodoTask.cs
index e0439c5e07c..581f6bd3ad0 100644
--- a/src/Microsoft.Graph/Generated/Models/TodoTask.cs
+++ b/src/Microsoft.Graph/Generated/Models/TodoTask.cs
@@ -269,7 +269,7 @@ public string Title
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TodoTask CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TodoTask();
         }
         /// <summary>
@@ -308,7 +308,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttachmentBase>("attachments", Attachments);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttachmentSession>("attachmentSessions", AttachmentSessions);
diff --git a/src/Microsoft.Graph/Generated/Models/TodoTaskCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TodoTaskCollectionResponse.cs
index fd3e2f3158a..e7c0b25f203 100644
--- a/src/Microsoft.Graph/Generated/Models/TodoTaskCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TodoTaskCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TodoTaskCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TodoTaskCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TodoTaskCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TodoTask>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TodoTaskList.cs b/src/Microsoft.Graph/Generated/Models/TodoTaskList.cs
index 68bc8538c20..bcc196a937c 100644
--- a/src/Microsoft.Graph/Generated/Models/TodoTaskList.cs
+++ b/src/Microsoft.Graph/Generated/Models/TodoTaskList.cs
@@ -85,7 +85,7 @@ public bool? IsShared
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TodoTaskList CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TodoTaskList();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Extension>("extensions", Extensions);
diff --git a/src/Microsoft.Graph/Generated/Models/TodoTaskListCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TodoTaskListCollectionResponse.cs
index 5cb8316cc7b..fb403b6f839 100644
--- a/src/Microsoft.Graph/Generated/Models/TodoTaskListCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TodoTaskListCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TodoTaskListCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TodoTaskListCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TodoTaskListCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TodoTaskList>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicy.cs b/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicy.cs
index af560a2a93c..ce8cc6730af 100644
--- a/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicy.cs
@@ -26,7 +26,7 @@ public TokenIssuancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TokenIssuancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TokenIssuancePolicy();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicyCollectionResponse.cs
index 5ba09908d4c..f8183f37bcb 100644
--- a/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TokenIssuancePolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TokenIssuancePolicyCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TokenIssuancePolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TokenIssuancePolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TokenIssuancePolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicy.cs b/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicy.cs
index e8ca92bb5d1..ff3b8e5e10a 100644
--- a/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicy.cs
@@ -26,7 +26,7 @@ public TokenLifetimePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TokenLifetimePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TokenLifetimePolicy();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicyCollectionResponse.cs
index 078b75cb9d5..782cefa3e7a 100644
--- a/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TokenLifetimePolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TokenLifetimePolicyCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TokenLifetimePolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TokenLifetimePolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TokenLifetimePolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TokenMeetingInfo.cs b/src/Microsoft.Graph/Generated/Models/TokenMeetingInfo.cs
index 1c89deb8e9a..7e569b09bf2 100644
--- a/src/Microsoft.Graph/Generated/Models/TokenMeetingInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/TokenMeetingInfo.cs
@@ -42,7 +42,7 @@ public TokenMeetingInfo() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TokenMeetingInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TokenMeetingInfo();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("token", Token);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/ToneInfo.cs b/src/Microsoft.Graph/Generated/Models/ToneInfo.cs
index 8d06d292ee5..366af133279 100644
--- a/src/Microsoft.Graph/Generated/Models/ToneInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/ToneInfo.cs
@@ -64,7 +64,7 @@ public ToneInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.ToneInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.ToneInfo();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("sequenceId", SequenceId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Tone>("tone", Tone);
diff --git a/src/Microsoft.Graph/Generated/Models/Training.cs b/src/Microsoft.Graph/Generated/Models/Training.cs
index 647b6baa757..043a93616a7 100644
--- a/src/Microsoft.Graph/Generated/Models/Training.cs
+++ b/src/Microsoft.Graph/Generated/Models/Training.cs
@@ -173,7 +173,7 @@ public List<string> Tags
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Training CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Training();
         }
         /// <summary>
@@ -206,7 +206,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TrainingAvailabilityStatus>("availabilityStatus", AvailabilityStatus);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailIdentity>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/TrainingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TrainingCollectionResponse.cs
index 7e00649d867..6d935c75456 100644
--- a/src/Microsoft.Graph/Generated/Models/TrainingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrainingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TrainingCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TrainingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TrainingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Training>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TrainingEventsContent.cs b/src/Microsoft.Graph/Generated/Models/TrainingEventsContent.cs
index 895fc9baa44..cf3311070f5 100644
--- a/src/Microsoft.Graph/Generated/Models/TrainingEventsContent.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrainingEventsContent.cs
@@ -74,7 +74,7 @@ public TrainingEventsContent()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TrainingEventsContent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TrainingEventsContent();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssignedTrainingInfo>("assignedTrainingsInfos", AssignedTrainingsInfos);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("trainingsAssignedUserCount", TrainingsAssignedUserCount);
diff --git a/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetail.cs b/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetail.cs
index 96c86b83358..2ebf2659d6d 100644
--- a/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetail.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetail.cs
@@ -133,7 +133,7 @@ public string Locale
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TrainingLanguageDetail CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TrainingLanguageDetail();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("content", Content);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.EmailIdentity>("createdBy", CreatedBy);
diff --git a/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetailCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetailCollectionResponse.cs
index 3259d993226..6f44f0e8cdf 100644
--- a/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetailCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrainingLanguageDetailCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TrainingLanguageDetailCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TrainingLanguageDetailCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TrainingLanguageDetailCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TrainingLanguageDetail>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TrainingNotificationSetting.cs b/src/Microsoft.Graph/Generated/Models/TrainingNotificationSetting.cs
index 840d34ee2b2..c19a10e3d20 100644
--- a/src/Microsoft.Graph/Generated/Models/TrainingNotificationSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrainingNotificationSetting.cs
@@ -58,7 +58,7 @@ public TrainingNotificationSetting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TrainingNotificationSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TrainingNotificationSetting();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.BaseEndUserNotification>("trainingAssignment", TrainingAssignment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TrainingReminderNotification>("trainingReminder", TrainingReminder);
diff --git a/src/Microsoft.Graph/Generated/Models/TrainingReminderNotification.cs b/src/Microsoft.Graph/Generated/Models/TrainingReminderNotification.cs
index 196ffabaac1..5701f4abce0 100644
--- a/src/Microsoft.Graph/Generated/Models/TrainingReminderNotification.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrainingReminderNotification.cs
@@ -32,7 +32,7 @@ public TrainingReminderNotification() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TrainingReminderNotification CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TrainingReminderNotification();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.NotificationDeliveryFrequency>("deliveryFrequency", DeliveryFrequency);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/TrainingSetting.cs b/src/Microsoft.Graph/Generated/Models/TrainingSetting.cs
index 1a110d1079a..d601f4e19c6 100644
--- a/src/Microsoft.Graph/Generated/Models/TrainingSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrainingSetting.cs
@@ -58,7 +58,7 @@ public TrainingSetting()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.TrainingSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -88,7 +88,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TrainingSettingType>("settingType", SettingType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Trending.cs b/src/Microsoft.Graph/Generated/Models/Trending.cs
index 275a0bf03e6..1d877dcc260 100644
--- a/src/Microsoft.Graph/Generated/Models/Trending.cs
+++ b/src/Microsoft.Graph/Generated/Models/Trending.cs
@@ -79,7 +79,7 @@ public double? Weight
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Trending CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Trending();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Entity>("resource", Resource);
diff --git a/src/Microsoft.Graph/Generated/Models/TrendingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/TrendingCollectionResponse.cs
index 3797152d005..1e400783a58 100644
--- a/src/Microsoft.Graph/Generated/Models/TrendingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/TrendingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class TrendingCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.TrendingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.TrendingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Trending>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedApprovalStage.cs b/src/Microsoft.Graph/Generated/Models/UnifiedApprovalStage.cs
index 289dedada53..8f4af75916a 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedApprovalStage.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedApprovalStage.cs
@@ -108,7 +108,7 @@ public UnifiedApprovalStage()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UnifiedApprovalStage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedApprovalStage();
         }
         /// <summary>
@@ -134,7 +134,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("approvalStageTimeOutInDays", ApprovalStageTimeOutInDays);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SubjectSet>("escalationApprovers", EscalationApprovers);
             writer.WriteIntValue("escalationTimeInMinutes", EscalationTimeInMinutes);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceAction.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceAction.cs
index 1f7a507f5fc..4b7d3c2ceb2 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceAction.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceAction.cs
@@ -105,7 +105,7 @@ public string ResourceScopeId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRbacResourceAction CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRbacResourceAction();
         }
         /// <summary>
@@ -130,7 +130,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("actionVerb", ActionVerb);
             writer.WriteStringValue("authenticationContextId", AuthenticationContextId);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceActionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceActionCollectionResponse.cs
index 7bc5d732238..54e42b4b9e6 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceActionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceActionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRbacResourceActionCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRbacResourceActionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRbacResourceActionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRbacResourceAction>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespace.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespace.cs
index 9b77b2022c2..3d3c782cb36 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespace.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespace.cs
@@ -51,7 +51,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRbacResourceAction>("resourceActions", ResourceActions);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespaceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespaceCollectionResponse.cs
index 1c225acec51..ee2b83569df 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespaceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRbacResourceNamespaceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRbacResourceNamespaceCollectionResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRbacResourceNamespaceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRbacResourceNamespaceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRole.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRole.cs
index 8aca5e3ecee..097977ad2b7 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRole.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRole.cs
@@ -68,7 +68,7 @@ public UnifiedRole()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UnifiedRole CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRole();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("roleDefinitionId", RoleDefinitionId);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignment.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignment.cs
index c6aabf01ea0..c7c63470d01 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignment.cs
@@ -163,7 +163,7 @@ public string RoleDefinitionId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignment();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppScope>("appScope", AppScope);
             writer.WriteStringValue("appScopeId", AppScopeId);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentCollectionResponse.cs
index c0edbe35e22..d7fe9fab54e 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleAssignmentCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentSchedule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentSchedule.cs
index af8fc27d16a..aac361d10fa 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentSchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentSchedule.cs
@@ -83,7 +83,7 @@ public string MemberType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule>("activatedUsing", ActivatedUsing);
             writer.WriteStringValue("assignmentType", AssignmentType);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleCollectionResponse.cs
index c0b4688fee7..5ac5ebd9ebe 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleAssignmentScheduleCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstance.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstance.cs
index f2a679c0b9e..f67ac34f363 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstance.cs
@@ -111,7 +111,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance>("activatedUsing", ActivatedUsing);
             writer.WriteStringValue("assignmentType", AssignmentType);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstanceCollectionResponse.cs
index 777fa5ec8ef..7a43f76a330 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleInstanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleAssignmentScheduleInstanceCollectionResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequest.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequest.cs
index 7e87cda6c8b..53b121c59cd 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequest.cs
@@ -255,7 +255,7 @@ public string TargetScheduleId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest();
         }
         /// <summary>
@@ -290,7 +290,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UnifiedRoleScheduleRequestActions>("action", Action);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule>("activatedUsing", ActivatedUsing);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequestCollectionResponse.cs
index 97214b55996..84b926db0b9 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleAssignmentScheduleRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleAssignmentScheduleRequestCollectionResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinition.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinition.cs
index 7bba7bb46e9..0e04b22dca9 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinition.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinition.cs
@@ -143,7 +143,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleDefinition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleDefinition();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinitionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinitionCollectionResponse.cs
index 6144b652124..7913ad31a61 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinitionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleDefinitionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleDefinitionCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleDefinitionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleDefinitionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleDefinition>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilitySchedule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilitySchedule.cs
index 7d3cebf879c..e0f76d93539 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilitySchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilitySchedule.cs
@@ -51,7 +51,7 @@ public string MemberType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("memberType", MemberType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.RequestSchedule>("scheduleInfo", ScheduleInfo);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleCollectionResponse.cs
index 18fc292178c..94203382db2 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleEligibilityScheduleCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstance.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstance.cs
index a70f9cb166c..a31e97814b8 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstance.cs
@@ -63,7 +63,7 @@ public DateTimeOffset? StartDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("memberType", MemberType);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstanceCollectionResponse.cs
index 7ed794f79f3..f548c3d1e9f 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleInstanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleEligibilityScheduleInstanceCollectionResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequest.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequest.cs
index 212232838bf..1f9f700f7a1 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequest.cs
@@ -239,7 +239,7 @@ public string TargetScheduleId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest();
         }
         /// <summary>
@@ -273,7 +273,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UnifiedRoleScheduleRequestActions>("action", Action);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppScope>("appScope", AppScope);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequestCollectionResponse.cs
index 7a72cc05c35..b033c5e0af7 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleEligibilityScheduleRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleEligibilityScheduleRequestCollectionResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicy.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicy.cs
index 1111e4273b0..2456725ed0e 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicy.cs
@@ -143,7 +143,7 @@ public string ScopeType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy();
         }
         /// <summary>
@@ -171,7 +171,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyApprovalRule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyApprovalRule.cs
index 9cf415c195a..37f070b4e94 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyApprovalRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyApprovalRule.cs
@@ -42,7 +42,7 @@ public UnifiedRoleManagementPolicyApprovalRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyApprovalRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyApprovalRule();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ApprovalSettings>("setting", Setting);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignment.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignment.cs
index 945f8ee7e8d..35abacdb90e 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignment.cs
@@ -99,7 +99,7 @@ public string ScopeType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy>("policy", Policy);
             writer.WriteStringValue("policyId", PolicyId);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignmentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignmentCollectionResponse.cs
index fde26ec0b24..038ba7918b5 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignmentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAssignmentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleManagementPolicyAssignmentCollectionResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignmentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignmentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAuthenticationContextRule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAuthenticationContextRule.cs
index 84ff5bc0b93..ac00ac2c7e5 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAuthenticationContextRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyAuthenticationContextRule.cs
@@ -48,7 +48,7 @@ public UnifiedRoleManagementPolicyAuthenticationContextRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAuthenticationContextRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAuthenticationContextRule();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("claimValue", ClaimValue);
             writer.WriteBoolValue("isEnabled", IsEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyCollectionResponse.cs
index 596fb66b23d..8303a1e4ed5 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleManagementPolicyCollectionResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyEnablementRule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyEnablementRule.cs
index b307f470763..55391da2de7 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyEnablementRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyEnablementRule.cs
@@ -42,7 +42,7 @@ public UnifiedRoleManagementPolicyEnablementRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyEnablementRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyEnablementRule();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("enabledRules", EnabledRules);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyExpirationRule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyExpirationRule.cs
index f44b94ad135..7572447efa5 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyExpirationRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyExpirationRule.cs
@@ -38,7 +38,7 @@ public UnifiedRoleManagementPolicyExpirationRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyExpirationRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyExpirationRule();
         }
         /// <summary>
@@ -59,7 +59,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isExpirationRequired", IsExpirationRequired);
             writer.WriteTimeSpanValue("maximumDuration", MaximumDuration);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyNotificationRule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyNotificationRule.cs
index 4a446399170..42d80f4e790 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyNotificationRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyNotificationRule.cs
@@ -96,7 +96,7 @@ public UnifiedRoleManagementPolicyNotificationRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyNotificationRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyNotificationRule();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isDefaultRecipientsEnabled", IsDefaultRecipientsEnabled);
             writer.WriteStringValue("notificationLevel", NotificationLevel);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRule.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRule.cs
index 0e299bb909a..3cd709a2451 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRule.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleManagementPolicyRule : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -64,7 +64,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRuleTarget>("target", Target);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleCollectionResponse.cs
index cbe37e49e19..a3a1c07ae2f 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UnifiedRoleManagementPolicyRuleCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRuleCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRuleCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleTarget.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleTarget.cs
index 1b1bbffb9f2..35559a1a80a 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleTarget.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleManagementPolicyRuleTarget.cs
@@ -148,7 +148,7 @@ public UnifiedRoleManagementPolicyRuleTarget()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRuleTarget CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRuleTarget();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("caller", Caller);
             writer.WriteCollectionOfPrimitiveValues<string>("enforcedSettings", EnforcedSettings);
             writer.WriteCollectionOfPrimitiveValues<string>("inheritableSettings", InheritableSettings);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRolePermission.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRolePermission.cs
index 2141456876d..617d44f0609 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRolePermission.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRolePermission.cs
@@ -100,7 +100,7 @@ public UnifiedRolePermission()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UnifiedRolePermission CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedRolePermission();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("allowedResourceActions", AllowedResourceActions);
             writer.WriteStringValue("condition", Condition);
             writer.WriteCollectionOfPrimitiveValues<string>("excludedResourceActions", ExcludedResourceActions);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleBase.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleBase.cs
index 106401b7bb2..a862cad9eae 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleBase.cs
@@ -191,7 +191,7 @@ public string Status
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleScheduleBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -228,7 +228,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppScope>("appScope", AppScope);
             writer.WriteStringValue("appScopeId", AppScopeId);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleInstanceBase.cs b/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleInstanceBase.cs
index 661e0996754..8418834e1ca 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleInstanceBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedRoleScheduleInstanceBase.cs
@@ -147,7 +147,7 @@ public string RoleDefinitionId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedRoleScheduleInstanceBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -180,7 +180,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AppScope>("appScope", AppScope);
             writer.WriteStringValue("appScopeId", AppScopeId);
diff --git a/src/Microsoft.Graph/Generated/Models/UnifiedStorageQuota.cs b/src/Microsoft.Graph/Generated/Models/UnifiedStorageQuota.cs
index d577fb23585..233737c5199 100644
--- a/src/Microsoft.Graph/Generated/Models/UnifiedStorageQuota.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnifiedStorageQuota.cs
@@ -91,7 +91,7 @@ public long? Used
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnifiedStorageQuota CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnifiedStorageQuota();
         }
         /// <summary>
@@ -117,7 +117,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteLongValue("deleted", Deleted);
             writer.WriteStringValue("manageWebUrl", ManageWebUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/UnmuteParticipantOperation.cs b/src/Microsoft.Graph/Generated/Models/UnmuteParticipantOperation.cs
index 65fd07ae2b6..3ada7ee304b 100644
--- a/src/Microsoft.Graph/Generated/Models/UnmuteParticipantOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/UnmuteParticipantOperation.cs
@@ -19,7 +19,7 @@ public partial class UnmuteParticipantOperation : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UnmuteParticipantOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UnmuteParticipantOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/UpdateAllowedCombinationsResult.cs b/src/Microsoft.Graph/Generated/Models/UpdateAllowedCombinationsResult.cs
index 0ecb45b188f..4af1b3b8cbd 100644
--- a/src/Microsoft.Graph/Generated/Models/UpdateAllowedCombinationsResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/UpdateAllowedCombinationsResult.cs
@@ -116,7 +116,7 @@ public UpdateAllowedCombinationsResult()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UpdateAllowedCombinationsResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UpdateAllowedCombinationsResult();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("additionalInformation", AdditionalInformation);
             writer.WriteCollectionOfPrimitiveValues<string>("conditionalAccessReferences", ConditionalAccessReferences);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.AuthenticationMethodModes>("currentCombinations", CurrentCombinations);
diff --git a/src/Microsoft.Graph/Generated/Models/UpdateRecordingStatusOperation.cs b/src/Microsoft.Graph/Generated/Models/UpdateRecordingStatusOperation.cs
index 4deccc02919..d4c5580136c 100644
--- a/src/Microsoft.Graph/Generated/Models/UpdateRecordingStatusOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/UpdateRecordingStatusOperation.cs
@@ -19,7 +19,7 @@ public partial class UpdateRecordingStatusOperation : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UpdateRecordingStatusOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UpdateRecordingStatusOperation();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/UpdateWindowsDeviceAccountActionParameter.cs b/src/Microsoft.Graph/Generated/Models/UpdateWindowsDeviceAccountActionParameter.cs
index 8bd9b905785..b0c353b3ff0 100644
--- a/src/Microsoft.Graph/Generated/Models/UpdateWindowsDeviceAccountActionParameter.cs
+++ b/src/Microsoft.Graph/Generated/Models/UpdateWindowsDeviceAccountActionParameter.cs
@@ -128,7 +128,7 @@ public UpdateWindowsDeviceAccountActionParameter()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UpdateWindowsDeviceAccountActionParameter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UpdateWindowsDeviceAccountActionParameter();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("calendarSyncEnabled", CalendarSyncEnabled);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WindowsDeviceAccount>("deviceAccount", DeviceAccount);
             writer.WriteStringValue("deviceAccountEmail", DeviceAccountEmail);
diff --git a/src/Microsoft.Graph/Generated/Models/UploadSession.cs b/src/Microsoft.Graph/Generated/Models/UploadSession.cs
index 4fb57fa4b8a..17e0a9bddac 100644
--- a/src/Microsoft.Graph/Generated/Models/UploadSession.cs
+++ b/src/Microsoft.Graph/Generated/Models/UploadSession.cs
@@ -90,7 +90,7 @@ public UploadSession()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UploadSession CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UploadSession();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteCollectionOfPrimitiveValues<string>("nextExpectedRanges", NextExpectedRanges);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/UriClickSecurityState.cs b/src/Microsoft.Graph/Generated/Models/UriClickSecurityState.cs
index cad74640e79..876725ad841 100644
--- a/src/Microsoft.Graph/Generated/Models/UriClickSecurityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/UriClickSecurityState.cs
@@ -138,7 +138,7 @@ public UriClickSecurityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UriClickSecurityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UriClickSecurityState();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("clickAction", ClickAction);
             writer.WriteDateTimeOffsetValue("clickDateTime", ClickDateTime);
             writer.WriteStringValue("id", Id);
diff --git a/src/Microsoft.Graph/Generated/Models/UrlAssessmentRequest.cs b/src/Microsoft.Graph/Generated/Models/UrlAssessmentRequest.cs
index 48ddbd325d2..2a079b4139e 100644
--- a/src/Microsoft.Graph/Generated/Models/UrlAssessmentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/UrlAssessmentRequest.cs
@@ -42,7 +42,7 @@ public UrlAssessmentRequest() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UrlAssessmentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UrlAssessmentRequest();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("url", Url);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UsageDetails.cs b/src/Microsoft.Graph/Generated/Models/UsageDetails.cs
index ec232cd485d..130d5efc1ef 100644
--- a/src/Microsoft.Graph/Generated/Models/UsageDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/UsageDetails.cs
@@ -64,7 +64,7 @@ public UsageDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UsageDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UsageDetails();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastAccessedDateTime", LastAccessedDateTime);
             writer.WriteDateTimeOffsetValue("lastModifiedDateTime", LastModifiedDateTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/UsageRightsIncluded.cs b/src/Microsoft.Graph/Generated/Models/UsageRightsIncluded.cs
index 7084520c1c1..e08dade4c4b 100644
--- a/src/Microsoft.Graph/Generated/Models/UsageRightsIncluded.cs
+++ b/src/Microsoft.Graph/Generated/Models/UsageRightsIncluded.cs
@@ -57,7 +57,7 @@ public string UserEmail
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UsageRightsIncluded CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UsageRightsIncluded();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("ownerEmail", OwnerEmail);
             writer.WriteStringValue("userEmail", UserEmail);
diff --git a/src/Microsoft.Graph/Generated/Models/UsedInsight.cs b/src/Microsoft.Graph/Generated/Models/UsedInsight.cs
index 65398f1b3e9..c49ab4fa7a0 100644
--- a/src/Microsoft.Graph/Generated/Models/UsedInsight.cs
+++ b/src/Microsoft.Graph/Generated/Models/UsedInsight.cs
@@ -83,7 +83,7 @@ public partial class UsedInsight : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UsedInsight CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UsedInsight();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UsageDetails>("lastUsed", LastUsed);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Entity>("resource", Resource);
diff --git a/src/Microsoft.Graph/Generated/Models/UsedInsightCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UsedInsightCollectionResponse.cs
index 6db1b85f48a..3c461493499 100644
--- a/src/Microsoft.Graph/Generated/Models/UsedInsightCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UsedInsightCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UsedInsightCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UsedInsightCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UsedInsightCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UsedInsight>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/User.cs b/src/Microsoft.Graph/Generated/Models/User.cs
index 70ab53c8f2c..30250db83ca 100644
--- a/src/Microsoft.Graph/Generated/Models/User.cs
+++ b/src/Microsoft.Graph/Generated/Models/User.cs
@@ -1957,7 +1957,7 @@ public User() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.User CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.User();
         }
         /// <summary>
@@ -2106,7 +2106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("aboutMe", AboutMe);
             writer.WriteBoolValue("accountEnabled", AccountEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/UserActionContext.cs b/src/Microsoft.Graph/Generated/Models/UserActionContext.cs
index f2c158d5319..455f920d4f1 100644
--- a/src/Microsoft.Graph/Generated/Models/UserActionContext.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserActionContext.cs
@@ -32,7 +32,7 @@ public UserActionContext() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserActionContext CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserActionContext();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserAction>("userAction", UserAction);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserActivity.cs b/src/Microsoft.Graph/Generated/Models/UserActivity.cs
index 58d41a0fcd5..ff79c2dc5d1 100644
--- a/src/Microsoft.Graph/Generated/Models/UserActivity.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserActivity.cs
@@ -203,7 +203,7 @@ public string UserTimezone
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserActivity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserActivity();
         }
         /// <summary>
@@ -236,7 +236,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("activationUrl", ActivationUrl);
             writer.WriteStringValue("activitySourceHost", ActivitySourceHost);
diff --git a/src/Microsoft.Graph/Generated/Models/UserActivityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserActivityCollectionResponse.cs
index 22f2ab2ba71..b0dde444897 100644
--- a/src/Microsoft.Graph/Generated/Models/UserActivityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserActivityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserActivityCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserActivityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserActivityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserActivity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserAttributeValuesItem.cs b/src/Microsoft.Graph/Generated/Models/UserAttributeValuesItem.cs
index 1ccc6d8e48c..a5ed4203fd1 100644
--- a/src/Microsoft.Graph/Generated/Models/UserAttributeValuesItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserAttributeValuesItem.cs
@@ -90,7 +90,7 @@ public UserAttributeValuesItem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserAttributeValuesItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserAttributeValuesItem();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isDefault", IsDefault);
             writer.WriteStringValue("name", Name);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/UserCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserCollectionResponse.cs
index 2b2a3e65c58..a06e30e89d3 100644
--- a/src/Microsoft.Graph/Generated/Models/UserCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserCollectionResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.User>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserConsentRequest.cs b/src/Microsoft.Graph/Generated/Models/UserConsentRequest.cs
index f52b10aea84..2d5ac33b058 100644
--- a/src/Microsoft.Graph/Generated/Models/UserConsentRequest.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserConsentRequest.cs
@@ -51,7 +51,7 @@ public string Reason
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserConsentRequest CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserConsentRequest();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Approval>("approval", Approval);
             writer.WriteStringValue("reason", Reason);
diff --git a/src/Microsoft.Graph/Generated/Models/UserConsentRequestCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserConsentRequestCollectionResponse.cs
index 69a5c6d834d..33dc2ea4bd7 100644
--- a/src/Microsoft.Graph/Generated/Models/UserConsentRequestCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserConsentRequestCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserConsentRequestCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserConsentRequestCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserConsentRequestCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserConsentRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserDataSecurityAndGovernance.cs b/src/Microsoft.Graph/Generated/Models/UserDataSecurityAndGovernance.cs
index a002332fc9c..dd9e3bef412 100644
--- a/src/Microsoft.Graph/Generated/Models/UserDataSecurityAndGovernance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserDataSecurityAndGovernance.cs
@@ -58,7 +58,7 @@ public UserDataSecurityAndGovernance() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserDataSecurityAndGovernance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserDataSecurityAndGovernance();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ActivitiesContainer>("activities", Activities);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserProtectionScopeContainer>("protectionScopes", ProtectionScopes);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails.cs
index acbc0ffcb95..0f9014c969c 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails.cs
@@ -108,7 +108,7 @@ public bool? IsMostUsedVersion
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails();
         }
         /// <summary>
@@ -135,7 +135,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("appCrashCount", AppCrashCount);
             writer.WriteStringValue("appDisplayName", AppDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsCollectionResponse.cs
index 4406f6bb776..69a60718059 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionD
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetailsCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDetails>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId.cs
index 980776cbcfb..85d18479e50 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId.cs
@@ -128,7 +128,7 @@ public DateTimeOffset? ProcessedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId();
         }
         /// <summary>
@@ -155,7 +155,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("appCrashCount", AppCrashCount);
             writer.WriteStringValue("appDisplayName", AppDisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdCollectionResponse.cs
index 72bf9cbe99f..c4cb3714e43 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionD
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceIdCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByAppVersionDeviceId>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion.cs
index 357ee5176ec..e861bce2a05 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion.cs
@@ -124,7 +124,7 @@ public string OsVersion
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion();
         }
         /// <summary>
@@ -152,7 +152,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("activeDeviceCount", ActiveDeviceCount);
             writer.WriteIntValue("appCrashCount", AppCrashCount);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionCollectionResponse.cs
index f5bea0fe84a..38e59841e10 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionCo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthAppPerformanceByOSVersion>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformance.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformance.cs
index b6f4621b3c5..820b076bce9 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformance.cs
@@ -104,7 +104,7 @@ public int? MeanTimeToFailureInMinutes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance();
         }
         /// <summary>
@@ -132,7 +132,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("activeDeviceCount", ActiveDeviceCount);
             writer.WriteIntValue("appCrashCount", AppCrashCount);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformanceCollectionResponse.cs
index f9662f61ece..a58796c60a9 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthApplicationPerformanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthApplicationPerformanceColle
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthApplicationPerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformance.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformance.cs
index c0aa8cdb2e3..61edf007f16 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformance.cs
@@ -76,7 +76,7 @@ public double? ModelAppHealthScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("activeDeviceCount", ActiveDeviceCount);
             writer.WriteStringValue("deviceManufacturer", DeviceManufacturer);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformanceCollectionResponse.cs
index a1d9217c321..a14bf621113 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDeviceModelPerformanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthDeviceModelPerformanceColle
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDeviceModelPerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformance.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformance.cs
index d53094172b5..2d83ea53bde 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformance.cs
@@ -126,7 +126,7 @@ public DateTimeOffset? ProcessedDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance();
         }
         /// <summary>
@@ -156,7 +156,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("appCrashCount", AppCrashCount);
             writer.WriteIntValue("appHangCount", AppHangCount);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceCollectionResponse.cs
index 80e41875e97..267238f5428 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthDevicePerformanceCollection
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetails.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetails.cs
index f8a64a675f7..76f580832b7 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetails.cs
@@ -122,7 +122,7 @@ public string EventType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails();
         }
         /// <summary>
@@ -148,7 +148,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appDisplayName", AppDisplayName);
             writer.WriteStringValue("appPublisher", AppPublisher);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsCollectionResponse.cs
index b609f84cbf6..31ac59f3040 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthDevicePerformanceDetailsCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthDevicePerformanceDetailsCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetailsCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetailsCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthDevicePerformanceDetails>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformance.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformance.cs
index c7f34ac76a8..344fcfd85a7 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformance.cs
@@ -70,7 +70,7 @@ public double? OsVersionAppHealthScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("activeDeviceCount", ActiveDeviceCount);
             writer.WriteIntValue("meanTimeToFailureInMinutes", MeanTimeToFailureInMinutes);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformanceCollectionResponse.cs
index 7039d4b7466..ac7e9172c06 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAppHealthOSVersionPerformanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsAppHealthOSVersionPerformanceCollect
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsAppHealthOSVersionPerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAutopilotDevicesSummary.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAutopilotDevicesSummary.cs
index 91f511fe02a..ef4f7d8e31e 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAutopilotDevicesSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsAutopilotDevicesSummary.cs
@@ -71,7 +71,7 @@ public UserExperienceAnalyticsAutopilotDevicesSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsAutopilotDevicesSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsAutopilotDevicesSummary();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("devicesNotAutopilotRegistered", DevicesNotAutopilotRegistered);
             writer.WriteIntValue("devicesWithoutAutopilotProfileAssigned", DevicesWithoutAutopilotProfileAssigned);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaseline.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaseline.cs
index 5f7445da01a..d9746cd4d16 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaseline.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaseline.cs
@@ -160,7 +160,7 @@ public bool? IsBuiltIn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline();
         }
         /// <summary>
@@ -189,7 +189,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory>("appHealthMetrics", AppHealthMetrics);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory>("batteryHealthMetrics", BatteryHealthMetrics);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaselineCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaselineCollectionResponse.cs
index 082f090e1cb..552f8d2f88d 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaselineCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsBaselineCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsBaselineCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsBaselineCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsBaselineCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsBaseline>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategory.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategory.cs
index 7ae4f1c3b55..a9f01226a55 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategory.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategory.cs
@@ -52,7 +52,7 @@ public partial class UserExperienceAnalyticsCategory : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsInsight>("insights", Insights);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric>("metricValues", MetricValues);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategoryCollectionResponse.cs
index 829201daeb5..fe4356f7574 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCategoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsCategoryCollectionResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsCategoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsCategoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsCategory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudIdentityDevicesSummary.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudIdentityDevicesSummary.cs
index 7166df55ea3..9de8c015c8d 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudIdentityDevicesSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudIdentityDevicesSummary.cs
@@ -59,7 +59,7 @@ public UserExperienceAnalyticsCloudIdentityDevicesSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsCloudIdentityDevicesSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsCloudIdentityDevicesSummary();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("deviceWithoutCloudIdentityCount", DeviceWithoutCloudIdentityCount);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudManagementDevicesSummary.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudManagementDevicesSummary.cs
index c55f52ff318..6d2fafc59cd 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudManagementDevicesSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsCloudManagementDevicesSummary.cs
@@ -71,7 +71,7 @@ public UserExperienceAnalyticsCloudManagementDevicesSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsCloudManagementDevicesSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsCloudManagementDevicesSummary();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("coManagedDeviceCount", CoManagedDeviceCount);
             writer.WriteIntValue("intuneDeviceCount", IntuneDeviceCount);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformance.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformance.cs
index 81b613f5909..8fcec629791 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformance.cs
@@ -180,7 +180,7 @@ public double? StartupPerformanceScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance();
         }
         /// <summary>
@@ -219,7 +219,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("averageBlueScreens", AverageBlueScreens);
             writer.WriteDoubleValue("averageRestarts", AverageRestarts);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformanceCollectionResponse.cs
index f6182fcad89..d81a977ba91 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDevicePerformanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsDevicePerformanceCollectionResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsDevicePerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScores.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScores.cs
index f1962829a2f..bbb0686749d 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScores.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScores.cs
@@ -104,7 +104,7 @@ public double? WorkFromAnywhereScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores();
         }
         /// <summary>
@@ -132,7 +132,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("appReliabilityScore", AppReliabilityScore);
             writer.WriteDoubleValue("batteryHealthScore", BatteryHealthScore);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScoresCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScoresCollectionResponse.cs
index 32244a4b397..d85c9fd079b 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScoresCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceScoresCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsDeviceScoresCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScoresCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScoresCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceScores>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistory.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistory.cs
index 4c744f0fbf0..7d42bd4a94a 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistory.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistory.cs
@@ -156,7 +156,7 @@ public int? TotalLoginTimeInMs
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("coreBootTimeInMs", CoreBootTimeInMs);
             writer.WriteIntValue("coreLoginTimeInMs", CoreLoginTimeInMs);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistoryCollectionResponse.cs
index 862d07fbbe4..8018dafa593 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupHistoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsDeviceStartupHistoryCollectionRespon
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupHistory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcess.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcess.cs
index 73fea43bfc2..f76698a2547 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcess.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcess.cs
@@ -90,7 +90,7 @@ public int? StartupImpactInMs
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("managedDeviceId", ManagedDeviceId);
             writer.WriteStringValue("processName", ProcessName);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessCollectionResponse.cs
index 27a092f29e0..b7a86420eb8 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsDeviceStartupProcessCollectionRespon
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcess>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformance.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformance.cs
index f7a7382c934..00561e6d2db 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformance.cs
@@ -86,7 +86,7 @@ public long? TotalImpactInMs
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance();
         }
         /// <summary>
@@ -111,7 +111,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteLongValue("deviceCount", DeviceCount);
             writer.WriteLongValue("medianImpactInMs", MedianImpactInMs);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformanceCollectionResponse.cs
index e9aea23aa08..9a2fbe6bd68 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsDeviceStartupProcessPerformanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsDeviceStartupProcessPerformanceColle
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsDeviceStartupProcessPerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsight.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsight.cs
index 5d1e4a89737..e117f119709 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsight.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsight.cs
@@ -107,7 +107,7 @@ public UserExperienceAnalyticsInsight()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsInsight CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsInsight();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("insightId", InsightId);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserExperienceAnalyticsInsightSeverity>("severity", Severity);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsightValue.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsightValue.cs
index 53967ff2cc9..e18f9bc89f3 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsightValue.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsInsightValue.cs
@@ -53,7 +53,7 @@ public UserExperienceAnalyticsInsightValue()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsInsightValue CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetric.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetric.cs
index 36bb4666513..e6b87904fd6 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetric.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetric.cs
@@ -42,7 +42,7 @@ public double? Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("unit", Unit);
             writer.WriteDoubleValue("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricCollectionResponse.cs
index 561d836003e..71feac7b041 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsMetricCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetric>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistory.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistory.cs
index 75c0dcc1207..92060a4d91e 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistory.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistory.cs
@@ -58,7 +58,7 @@ public string MetricType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("deviceId", DeviceId);
             writer.WriteDateTimeOffsetValue("metricDateTime", MetricDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistoryCollectionResponse.cs
index fd6d8a7c9e3..b712c840ec0 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsMetricHistoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsMetricHistoryCollectionResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsMetricHistory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScores.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScores.cs
index 7e58c2bdf02..eb713263b3b 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScores.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScores.cs
@@ -94,7 +94,7 @@ public double? WorkFromAnywhereScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores();
         }
         /// <summary>
@@ -122,7 +122,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("appReliabilityScore", AppReliabilityScore);
             writer.WriteDoubleValue("batteryHealthScore", BatteryHealthScore);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScoresCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScoresCollectionResponse.cs
index 77173d12b36..fc29184bc26 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScoresCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsModelScoresCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsModelScoresCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScoresCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScoresCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsModelScores>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsOverview.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsOverview.cs
index a7d42c22279..735c96c5737 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsOverview.cs
@@ -36,7 +36,7 @@ public partial class UserExperienceAnalyticsOverview : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsOverview();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsInsight>("insights", Insights);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistory.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistory.cs
index 5da74f410e2..e628a2ace88 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistory.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistory.cs
@@ -26,7 +26,7 @@ public DateTimeOffset? StartupDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("startupDateTime", StartupDateTime);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistoryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistoryCollectionResponse.cs
index 10fa704ca16..e67fce9daf2 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistoryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsScoreHistoryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsScoreHistoryCollectionResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistoryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistoryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsScoreHistory>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsSettings.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsSettings.cs
index dd9bd594133..657c1969b13 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsSettings.cs
@@ -59,7 +59,7 @@ public UserExperienceAnalyticsSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsSettings();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("configurationManagerDataConnectorConfigured", ConfigurationManagerDataConnectorConfigured);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWindows10DevicesSummary.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWindows10DevicesSummary.cs
index dac31176b23..c75d31638d7 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWindows10DevicesSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWindows10DevicesSummary.cs
@@ -59,7 +59,7 @@ public UserExperienceAnalyticsWindows10DevicesSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsWindows10DevicesSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWindows10DevicesSummary();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("unsupportedOSversionDeviceCount", UnsupportedOSversionDeviceCount);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevice.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevice.cs
index fd3be5aa9ad..e7f880e937d 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevice.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevice.cs
@@ -334,7 +334,7 @@ public double? WorkFromAnywhereScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice();
         }
         /// <summary>
@@ -387,7 +387,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("autoPilotProfileAssigned", AutoPilotProfileAssigned);
             writer.WriteBoolValue("autoPilotRegistered", AutoPilotRegistered);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDeviceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDeviceCollectionResponse.cs
index 183576a993d..0ac01d9783c 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDeviceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDeviceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsWorkFromAnywhereDeviceCollectionResp
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDeviceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDeviceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevicesSummary.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevicesSummary.cs
index 13de70f7a35..20ddddfc353 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevicesSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereDevicesSummary.cs
@@ -177,7 +177,7 @@ public UserExperienceAnalyticsWorkFromAnywhereDevicesSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevicesSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevicesSummary();
         }
         /// <summary>
@@ -211,7 +211,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserExperienceAnalyticsAutopilotDevicesSummary>("autopilotDevicesSummary", AutopilotDevicesSummary);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserExperienceAnalyticsCloudIdentityDevicesSummary>("cloudIdentityDevicesSummary", CloudIdentityDevicesSummary);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UserExperienceAnalyticsCloudManagementDevicesSummary>("cloudManagementDevicesSummary", CloudManagementDevicesSummary);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric.cs
index f815553e4d5..e3e980b79e3 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric.cs
@@ -86,7 +86,7 @@ public int? UpgradeEligibleDeviceCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereHardwareReadinessMetric();
         }
         /// <summary>
@@ -116,7 +116,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("osCheckFailedPercentage", OsCheckFailedPercentage);
             writer.WriteDoubleValue("processor64BitCheckFailedPercentage", Processor64BitCheckFailedPercentage);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetric.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetric.cs
index 5d4b5df56f7..4b184e57e01 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetric.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetric.cs
@@ -36,7 +36,7 @@ public partial class UserExperienceAnalyticsWorkFromAnywhereMetric : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereDevice>("metricDevices", MetricDevices);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetricCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetricCollectionResponse.cs
index acf4cc55619..f87fddaf64e 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetricCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereMetricCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsWorkFromAnywhereMetricCollectionResp
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetricCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetricCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereMetric>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformance.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformance.cs
index 20b95f2641a..bb7ad816b0e 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformance.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformance.cs
@@ -94,7 +94,7 @@ public double? WorkFromAnywhereScore
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance();
         }
         /// <summary>
@@ -122,7 +122,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDoubleValue("cloudIdentityScore", CloudIdentityScore);
             writer.WriteDoubleValue("cloudManagementScore", CloudManagementScore);
diff --git a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceCollectionResponse.cs
index e6435d2acf2..f6e10a3da86 100644
--- a/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserExperienceAnalyticsWorkFromAnywhereModelPerformanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserExperienceAnalyticsWorkFromAnywhereModelPerformanceColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserExperienceAnalyticsWorkFromAnywhereModelPerformance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserFlowApiConnectorConfiguration.cs b/src/Microsoft.Graph/Generated/Models/UserFlowApiConnectorConfiguration.cs
index 97fb55a1f59..18560527ede 100644
--- a/src/Microsoft.Graph/Generated/Models/UserFlowApiConnectorConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserFlowApiConnectorConfiguration.cs
@@ -84,7 +84,7 @@ public UserFlowApiConnectorConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserFlowApiConnectorConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserFlowApiConnectorConfiguration();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityApiConnector>("postAttributeCollection", PostAttributeCollection);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IdentityApiConnector>("postFederationSignup", PostFederationSignup);
diff --git a/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfiguration.cs b/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfiguration.cs
index 5ef629b65fc..a599e6e6cba 100644
--- a/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfiguration.cs
@@ -73,7 +73,7 @@ public bool? IsEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserFlowLanguageConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserFlowLanguageConfiguration();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserFlowLanguagePage>("defaultPages", DefaultPages);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfigurationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfigurationCollectionResponse.cs
index e15d4687c05..5366376d396 100644
--- a/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfigurationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserFlowLanguageConfigurationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserFlowLanguageConfigurationCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserFlowLanguageConfigurationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserFlowLanguageConfigurationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserFlowLanguageConfiguration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePage.cs b/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePage.cs
index ed243c5e27f..2937756a004 100644
--- a/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePage.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePage.cs
@@ -19,7 +19,7 @@ public partial class UserFlowLanguagePage : global::Microsoft.Graph.Models.Entit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserFlowLanguagePage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserFlowLanguagePage();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePageCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePageCollectionResponse.cs
index 6fc63cc41f0..c62d8dce22a 100644
--- a/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePageCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserFlowLanguagePageCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserFlowLanguagePageCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserFlowLanguagePageCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserFlowLanguagePageCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserFlowLanguagePage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserIdentity.cs b/src/Microsoft.Graph/Generated/Models/UserIdentity.cs
index 7312845098e..c1b7b790b24 100644
--- a/src/Microsoft.Graph/Generated/Models/UserIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserIdentity.cs
@@ -58,7 +58,7 @@ public UserIdentity() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserIdentity();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("ipAddress", IpAddress);
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
diff --git a/src/Microsoft.Graph/Generated/Models/UserInsightsSettings.cs b/src/Microsoft.Graph/Generated/Models/UserInsightsSettings.cs
index 5d375196f62..e84d79798e8 100644
--- a/src/Microsoft.Graph/Generated/Models/UserInsightsSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserInsightsSettings.cs
@@ -25,7 +25,7 @@ public bool? IsEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserInsightsSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserInsightsSettings();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isEnabled", IsEnabled);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserInstallStateSummary.cs b/src/Microsoft.Graph/Generated/Models/UserInstallStateSummary.cs
index a8afff84368..7f3fa31f8e7 100644
--- a/src/Microsoft.Graph/Generated/Models/UserInstallStateSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserInstallStateSummary.cs
@@ -70,7 +70,7 @@ public string UserName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserInstallStateSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserInstallStateSummary();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DeviceInstallState>("deviceStates", DeviceStates);
             writer.WriteIntValue("failedDeviceCount", FailedDeviceCount);
diff --git a/src/Microsoft.Graph/Generated/Models/UserInstallStateSummaryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserInstallStateSummaryCollectionResponse.cs
index d515996748a..aeaf42e0b84 100644
--- a/src/Microsoft.Graph/Generated/Models/UserInstallStateSummaryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserInstallStateSummaryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserInstallStateSummaryCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserInstallStateSummaryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserInstallStateSummaryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserInstallStateSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserLastSignInRecommendationInsightSetting.cs b/src/Microsoft.Graph/Generated/Models/UserLastSignInRecommendationInsightSetting.cs
index 1842cc0e7fb..e0d77abec78 100644
--- a/src/Microsoft.Graph/Generated/Models/UserLastSignInRecommendationInsightSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserLastSignInRecommendationInsightSetting.cs
@@ -38,7 +38,7 @@ public UserLastSignInRecommendationInsightSetting() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserLastSignInRecommendationInsightSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserLastSignInRecommendationInsightSetting();
         }
         /// <summary>
@@ -59,7 +59,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteTimeSpanValue("recommendationLookBackDuration", RecommendationLookBackDuration);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserSignInRecommendationScope>("signInScope", SignInScope);
diff --git a/src/Microsoft.Graph/Generated/Models/UserPrint.cs b/src/Microsoft.Graph/Generated/Models/UserPrint.cs
index de6a4663be4..8250336c0b6 100644
--- a/src/Microsoft.Graph/Generated/Models/UserPrint.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserPrint.cs
@@ -68,7 +68,7 @@ public UserPrint()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserPrint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserPrint();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PrinterShare>("recentPrinterShares", RecentPrinterShares);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/UserProtectionScopeContainer.cs b/src/Microsoft.Graph/Generated/Models/UserProtectionScopeContainer.cs
index c7770462f41..ca4dffe252c 100644
--- a/src/Microsoft.Graph/Generated/Models/UserProtectionScopeContainer.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserProtectionScopeContainer.cs
@@ -19,7 +19,7 @@ public partial class UserProtectionScopeContainer : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserProtectionScopeContainer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserProtectionScopeContainer();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/UserRegistrationDetails.cs b/src/Microsoft.Graph/Generated/Models/UserRegistrationDetails.cs
index a9e16efe969..cf5168bae2b 100644
--- a/src/Microsoft.Graph/Generated/Models/UserRegistrationDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserRegistrationDetails.cs
@@ -149,7 +149,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserRegistrationDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserRegistrationDetails();
         }
         /// <summary>
@@ -183,7 +183,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isAdmin", IsAdmin);
             writer.WriteBoolValue("isMfaCapable", IsMfaCapable);
diff --git a/src/Microsoft.Graph/Generated/Models/UserRegistrationDetailsCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserRegistrationDetailsCollectionResponse.cs
index 8ed068e2136..5b74f4e2781 100644
--- a/src/Microsoft.Graph/Generated/Models/UserRegistrationDetailsCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserRegistrationDetailsCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserRegistrationDetailsCollectionResponse : global::Microso
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserRegistrationDetailsCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserRegistrationDetailsCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserRegistrationDetails>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureCount.cs b/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureCount.cs
index 194331c015b..10b1c0e7acc 100644
--- a/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureCount.cs
@@ -64,7 +64,7 @@ public UserRegistrationFeatureCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserRegistrationFeatureCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserRegistrationFeatureCount();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AuthenticationMethodFeature>("feature", Feature);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("userCount", UserCount);
diff --git a/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureSummary.cs b/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureSummary.cs
index 453117c0f6e..13a8b1faaf9 100644
--- a/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserRegistrationFeatureSummary.cs
@@ -86,7 +86,7 @@ public UserRegistrationFeatureSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserRegistrationFeatureSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserRegistrationFeatureSummary();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("totalUserCount", TotalUserCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserRegistrationFeatureCount>("userRegistrationFeatureCounts", UserRegistrationFeatureCounts);
diff --git a/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodCount.cs b/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodCount.cs
index 98e5a2912cb..0ac9de070b4 100644
--- a/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodCount.cs
@@ -74,7 +74,7 @@ public UserRegistrationMethodCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserRegistrationMethodCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserRegistrationMethodCount();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("authenticationMethod", AuthenticationMethod);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("userCount", UserCount);
diff --git a/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodSummary.cs b/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodSummary.cs
index 74912e5c8ef..ea5518fd675 100644
--- a/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserRegistrationMethodSummary.cs
@@ -86,7 +86,7 @@ public UserRegistrationMethodSummary()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserRegistrationMethodSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserRegistrationMethodSummary();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteLongValue("totalUserCount", TotalUserCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserRegistrationMethodCount>("userRegistrationMethodCounts", UserRegistrationMethodCounts);
diff --git a/src/Microsoft.Graph/Generated/Models/UserScope.cs b/src/Microsoft.Graph/Generated/Models/UserScope.cs
index fa5b6360373..271ac6d55fe 100644
--- a/src/Microsoft.Graph/Generated/Models/UserScope.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserScope.cs
@@ -26,7 +26,7 @@ public UserScope() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserScope CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserScope();
         }
         /// <summary>
@@ -45,7 +45,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallation.cs b/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallation.cs
index eb145da8195..6c11861c1ff 100644
--- a/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallation.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallation.cs
@@ -42,7 +42,7 @@ public UserScopeTeamsAppInstallation() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Chat>("chat", Chat);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallationCollectionResponse.cs
index cab80dccafd..45b1d77f635 100644
--- a/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserScopeTeamsAppInstallationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class UserScopeTeamsAppInstallationCollectionResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserScopeTeamsAppInstallationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserScopeTeamsAppInstallationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserSecurityState.cs b/src/Microsoft.Graph/Generated/Models/UserSecurityState.cs
index 7e0126d9e99..4bd3d84d2b4 100644
--- a/src/Microsoft.Graph/Generated/Models/UserSecurityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserSecurityState.cs
@@ -226,7 +226,7 @@ public UserSecurityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserSecurityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserSecurityState();
         }
         /// <summary>
@@ -260,7 +260,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("aadUserId", AadUserId);
             writer.WriteStringValue("accountName", AccountName);
             writer.WriteStringValue("domainName", DomainName);
diff --git a/src/Microsoft.Graph/Generated/Models/UserSettings.cs b/src/Microsoft.Graph/Generated/Models/UserSettings.cs
index b7a824f07a4..7c20beeda56 100644
--- a/src/Microsoft.Graph/Generated/Models/UserSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserSettings.cs
@@ -95,7 +95,7 @@ public bool? ContributionToContentDiscoveryDisabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserSettings();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("contributionToContentDiscoveryAsOrganizationDisabled", ContributionToContentDiscoveryAsOrganizationDisabled);
             writer.WriteBoolValue("contributionToContentDiscoveryDisabled", ContributionToContentDiscoveryDisabled);
diff --git a/src/Microsoft.Graph/Generated/Models/UserSignIn.cs b/src/Microsoft.Graph/Generated/Models/UserSignIn.cs
index 61d3037e9bd..86b988938b9 100644
--- a/src/Microsoft.Graph/Generated/Models/UserSignIn.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserSignIn.cs
@@ -64,7 +64,7 @@ public UserSignIn() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserSignIn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserSignIn();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("externalTenantId", ExternalTenantId);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ConditionalAccessGuestOrExternalUserTypes>("externalUserType", ExternalUserType);
diff --git a/src/Microsoft.Graph/Generated/Models/UserSignInInsight.cs b/src/Microsoft.Graph/Generated/Models/UserSignInInsight.cs
index 073081296c7..0f6bb357578 100644
--- a/src/Microsoft.Graph/Generated/Models/UserSignInInsight.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserSignInInsight.cs
@@ -32,7 +32,7 @@ public UserSignInInsight() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserSignInInsight CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserSignInInsight();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("lastSignInDateTime", LastSignInDateTime);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserSimulationDetails.cs b/src/Microsoft.Graph/Generated/Models/UserSimulationDetails.cs
index 54a7d789f04..e3a99bfa9b8 100644
--- a/src/Microsoft.Graph/Generated/Models/UserSimulationDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserSimulationDetails.cs
@@ -136,7 +136,7 @@ public UserSimulationDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserSimulationDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserSimulationDetails();
         }
         /// <summary>
@@ -165,7 +165,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("assignedTrainingsCount", AssignedTrainingsCount);
             writer.WriteIntValue("completedTrainingsCount", CompletedTrainingsCount);
             writer.WriteDateTimeOffsetValue("compromisedDateTime", CompromisedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/UserSimulationEventInfo.cs b/src/Microsoft.Graph/Generated/Models/UserSimulationEventInfo.cs
index 0595ca29641..0aa0a9f63d7 100644
--- a/src/Microsoft.Graph/Generated/Models/UserSimulationEventInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserSimulationEventInfo.cs
@@ -128,7 +128,7 @@ public UserSimulationEventInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserSimulationEventInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserSimulationEventInfo();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("browser", Browser);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ClickSource>("clickSource", ClickSource);
             writer.WriteDateTimeOffsetValue("eventDateTime", EventDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/UserSolutionRoot.cs b/src/Microsoft.Graph/Generated/Models/UserSolutionRoot.cs
index 6d0a49e2084..2735a16956c 100644
--- a/src/Microsoft.Graph/Generated/Models/UserSolutionRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserSolutionRoot.cs
@@ -35,7 +35,7 @@ public partial class UserSolutionRoot : global::Microsoft.Graph.Models.Entity, I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserSolutionRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserSolutionRoot();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkingTimeSchedule>("workingTimeSchedule", WorkingTimeSchedule);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserStorage.cs b/src/Microsoft.Graph/Generated/Models/UserStorage.cs
index 7568cafe7bc..5758d5f7e27 100644
--- a/src/Microsoft.Graph/Generated/Models/UserStorage.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserStorage.cs
@@ -35,7 +35,7 @@ public partial class UserStorage : global::Microsoft.Graph.Models.Entity, IParsa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserStorage CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserStorage();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UnifiedStorageQuota>("quota", Quota);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/UserTeamwork.cs b/src/Microsoft.Graph/Generated/Models/UserTeamwork.cs
index e1dbdabb457..3400976004e 100644
--- a/src/Microsoft.Graph/Generated/Models/UserTeamwork.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserTeamwork.cs
@@ -83,7 +83,7 @@ public string Region
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.UserTeamwork CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserTeamwork();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssociatedTeamInfo>("associatedTeams", AssociatedTeams);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation>("installedApps", InstalledApps);
diff --git a/src/Microsoft.Graph/Generated/Models/UserTrainingContentEventInfo.cs b/src/Microsoft.Graph/Generated/Models/UserTrainingContentEventInfo.cs
index 15ae52b5c44..e5a88255dc6 100644
--- a/src/Microsoft.Graph/Generated/Models/UserTrainingContentEventInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserTrainingContentEventInfo.cs
@@ -112,7 +112,7 @@ public UserTrainingContentEventInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserTrainingContentEventInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserTrainingContentEventInfo();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("browser", Browser);
             writer.WriteDateTimeOffsetValue("contentDateTime", ContentDateTime);
             writer.WriteStringValue("ipAddress", IpAddress);
diff --git a/src/Microsoft.Graph/Generated/Models/UserTrainingEventInfo.cs b/src/Microsoft.Graph/Generated/Models/UserTrainingEventInfo.cs
index be6764040a0..73465b443ef 100644
--- a/src/Microsoft.Graph/Generated/Models/UserTrainingEventInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserTrainingEventInfo.cs
@@ -122,7 +122,7 @@ public UserTrainingEventInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserTrainingEventInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserTrainingEventInfo();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.TrainingStatus>("latestTrainingStatus", LatestTrainingStatus);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/UserTrainingStatusInfo.cs b/src/Microsoft.Graph/Generated/Models/UserTrainingStatusInfo.cs
index f045b5b6492..1ed1746a0fa 100644
--- a/src/Microsoft.Graph/Generated/Models/UserTrainingStatusInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/UserTrainingStatusInfo.cs
@@ -86,7 +86,7 @@ public UserTrainingStatusInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.UserTrainingStatusInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.UserTrainingStatusInfo();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("assignedDateTime", AssignedDateTime);
             writer.WriteDateTimeOffsetValue("completionDateTime", CompletionDateTime);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/VerifiedDomain.cs b/src/Microsoft.Graph/Generated/Models/VerifiedDomain.cs
index a91f861ed87..c379d2cf5db 100644
--- a/src/Microsoft.Graph/Generated/Models/VerifiedDomain.cs
+++ b/src/Microsoft.Graph/Generated/Models/VerifiedDomain.cs
@@ -112,7 +112,7 @@ public VerifiedDomain()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VerifiedDomain CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VerifiedDomain();
         }
         /// <summary>
@@ -137,7 +137,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("capabilities", Capabilities);
             writer.WriteBoolValue("isDefault", IsDefault);
             writer.WriteBoolValue("isInitial", IsInitial);
diff --git a/src/Microsoft.Graph/Generated/Models/VerifiedPublisher.cs b/src/Microsoft.Graph/Generated/Models/VerifiedPublisher.cs
index bd725db6cb2..1a05adb594a 100644
--- a/src/Microsoft.Graph/Generated/Models/VerifiedPublisher.cs
+++ b/src/Microsoft.Graph/Generated/Models/VerifiedPublisher.cs
@@ -90,7 +90,7 @@ public VerifiedPublisher()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VerifiedPublisher CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VerifiedPublisher();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("addedDateTime", AddedDateTime);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/VerticalSection.cs b/src/Microsoft.Graph/Generated/Models/VerticalSection.cs
index 79ba8a1fcbe..322fec2e874 100644
--- a/src/Microsoft.Graph/Generated/Models/VerticalSection.cs
+++ b/src/Microsoft.Graph/Generated/Models/VerticalSection.cs
@@ -41,7 +41,7 @@ public partial class VerticalSection : global::Microsoft.Graph.Models.Entity, IP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VerticalSection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VerticalSection();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SectionEmphasisType>("emphasis", Emphasis);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WebPart>("webparts", Webparts);
diff --git a/src/Microsoft.Graph/Generated/Models/Video.cs b/src/Microsoft.Graph/Generated/Models/Video.cs
index 99a84037e89..e00c895aefe 100644
--- a/src/Microsoft.Graph/Generated/Models/Video.cs
+++ b/src/Microsoft.Graph/Generated/Models/Video.cs
@@ -132,7 +132,7 @@ public Video()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Video CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Video();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("audioBitsPerSample", AudioBitsPerSample);
             writer.WriteIntValue("audioChannels", AudioChannels);
             writer.WriteStringValue("audioFormat", AudioFormat);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEndpoint.cs b/src/Microsoft.Graph/Generated/Models/VirtualEndpoint.cs
index e112c572bbc..99f93bf629c 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEndpoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEndpoint.cs
@@ -131,7 +131,7 @@ public partial class VirtualEndpoint : global::Microsoft.Graph.Models.Entity, IP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEndpoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEndpoint();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPcAuditEvent>("auditEvents", AuditEvents);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CloudPC>("cloudPCs", CloudPCs);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEvent.cs b/src/Microsoft.Graph/Generated/Models/VirtualEvent.cs
index e3eb2516c78..1c36b20ccd1 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEvent.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEvent.cs
@@ -169,7 +169,7 @@ public string DisplayName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEvent CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -204,7 +204,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.CommunicationsIdentitySet>("createdBy", CreatedBy);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventCollectionResponse.cs
index b3de1e183f3..6c2e9e7099f 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VirtualEventCollectionResponse : global::Microsoft.Graph.Mo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEvent>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventExternalInformation.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventExternalInformation.cs
index 9f653ddafac..59b9984f83f 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventExternalInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventExternalInformation.cs
@@ -84,7 +84,7 @@ public VirtualEventExternalInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VirtualEventExternalInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventExternalInformation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationId", ApplicationId);
             writer.WriteStringValue("externalEventId", ExternalEventId);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventExternalRegistrationInformation.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventExternalRegistrationInformation.cs
index 630d4667621..aa22bc8d94b 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventExternalRegistrationInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventExternalRegistrationInformation.cs
@@ -84,7 +84,7 @@ public VirtualEventExternalRegistrationInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VirtualEventExternalRegistrationInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventExternalRegistrationInformation();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("referrer", Referrer);
             writer.WriteStringValue("registrationId", RegistrationId);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenter.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenter.cs
index b803d267d3a..e51a5179333 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenter.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenter.cs
@@ -67,7 +67,7 @@ public string Email
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventPresenter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventPresenter();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("email", Email);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Identity>("identity", Identity);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterCollectionResponse.cs
index e3e39907f69..bb858831d70 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VirtualEventPresenterCollectionResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventPresenterCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventPresenterCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventPresenter>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterDetails.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterDetails.cs
index 99cd07125d7..6b69ebb5399 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterDetails.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterDetails.cs
@@ -164,7 +164,7 @@ public VirtualEventPresenterDetails()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VirtualEventPresenterDetails CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventPresenterDetails();
         }
         /// <summary>
@@ -191,7 +191,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("bio", Bio);
             writer.WriteStringValue("company", Company);
             writer.WriteStringValue("jobTitle", JobTitle);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterInfo.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterInfo.cs
index 82c0c7b9f0e..461522218dc 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventPresenterInfo.cs
@@ -42,7 +42,7 @@ public VirtualEventPresenterInfo() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventPresenterInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventPresenterInfo();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.VirtualEventPresenterDetails>("presenterDetails", PresenterDetails);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistration.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistration.cs
index d152a072c60..69ba9624bb9 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistration.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistration.cs
@@ -181,7 +181,7 @@ public string UserId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventRegistration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventRegistration();
         }
         /// <summary>
@@ -212,7 +212,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("cancelationDateTime", CancelationDateTime);
             writer.WriteStringValue("email", Email);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCollectionResponse.cs
index 398bf6e327f..707ef0ef29d 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VirtualEventRegistrationCollectionResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventRegistrationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventRegistrationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventRegistration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationConfiguration.cs
index 4b41dc0ed0e..09db14a2f7c 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationConfiguration.cs
@@ -57,7 +57,7 @@ public string RegistrationWebUrl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventRegistrationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -84,7 +84,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("capacity", Capacity);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase>("questions", Questions);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCustomQuestion.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCustomQuestion.cs
index 75918f6df73..63b00cde07c 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCustomQuestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationCustomQuestion.cs
@@ -48,7 +48,7 @@ public VirtualEventRegistrationCustomQuestion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventRegistrationCustomQuestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventRegistrationCustomQuestion();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("answerChoices", AnswerChoices);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionAnswerInputType>("answerInputType", AnswerInputType);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationPredefinedQuestion.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationPredefinedQuestion.cs
index 35d78de176e..c0993ce235d 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationPredefinedQuestion.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationPredefinedQuestion.cs
@@ -32,7 +32,7 @@ public VirtualEventRegistrationPredefinedQuestion() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventRegistrationPredefinedQuestion CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventRegistrationPredefinedQuestion();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.VirtualEventRegistrationPredefinedQuestionLabel>("label", Label);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionAnswer.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionAnswer.cs
index e804652ab7e..967fc69eae4 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionAnswer.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionAnswer.cs
@@ -122,7 +122,7 @@ public VirtualEventRegistrationQuestionAnswer()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionAnswer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionAnswer();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("booleanValue", BooleanValue);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteCollectionOfPrimitiveValues<string>("multiChoiceValues", MultiChoiceValues);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBase.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBase.cs
index 4aaef26f529..5a9e0958403 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBase.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBase.cs
@@ -41,7 +41,7 @@ public bool? IsRequired
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -68,7 +68,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteBoolValue("isRequired", IsRequired);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBaseCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBaseCollectionResponse.cs
index 2dea8c60ecb..aff6eb1582d 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBaseCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventRegistrationQuestionBaseCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VirtualEventRegistrationQuestionBaseCollectionResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBaseCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBaseCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventSession.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventSession.cs
index 5b961f5bfd7..e9ac0bfee7a 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventSession.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventSession.cs
@@ -74,7 +74,7 @@ public VirtualEventSession() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventSession CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventSession();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("endDateTime", EndDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventSessionCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventSessionCollectionResponse.cs
index 3d5970e3721..139f5e66686 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventSessionCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventSessionCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VirtualEventSessionCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventSessionCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventSessionCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventSession>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventSettings.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventSettings.cs
index 54afe62a384..af562279796 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventSettings.cs
@@ -58,7 +58,7 @@ public VirtualEventSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VirtualEventSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventSettings();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAttendeeEmailNotificationEnabled", IsAttendeeEmailNotificationEnabled);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventTownhall.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventTownhall.cs
index 55d0f4d3232..e1ee3eb0879 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventTownhall.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventTownhall.cs
@@ -70,7 +70,7 @@ public VirtualEventTownhall() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventTownhall CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventTownhall();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MeetingAudience>("audience", Audience);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CommunicationsUserIdentity>("coOrganizers", CoOrganizers);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventTownhallCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventTownhallCollectionResponse.cs
index 960f940b27e..dd229918dd6 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventTownhallCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventTownhallCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VirtualEventTownhallCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventTownhallCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventTownhallCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventTownhall>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventWebinar.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventWebinar.cs
index 7c6628562d0..5334bd47c15 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventWebinar.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventWebinar.cs
@@ -80,7 +80,7 @@ public VirtualEventWebinar() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventWebinar CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventWebinar();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MeetingAudience>("audience", Audience);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CommunicationsUserIdentity>("coOrganizers", CoOrganizers);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarCollectionResponse.cs
index e9838113c2c..e83f1fc2276 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VirtualEventWebinarCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventWebinarCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventWebinarCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventWebinar>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarRegistrationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarRegistrationConfiguration.cs
index 5a62c9264be..edfe377db06 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarRegistrationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventWebinarRegistrationConfiguration.cs
@@ -31,7 +31,7 @@ public bool? IsWaitlistEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventWebinarRegistrationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventWebinarRegistrationConfiguration();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("isManualApprovalEnabled", IsManualApprovalEnabled);
             writer.WriteBoolValue("isWaitlistEnabled", IsWaitlistEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/VirtualEventsRoot.cs b/src/Microsoft.Graph/Generated/Models/VirtualEventsRoot.cs
index 78270437473..ee81c40fa37 100644
--- a/src/Microsoft.Graph/Generated/Models/VirtualEventsRoot.cs
+++ b/src/Microsoft.Graph/Generated/Models/VirtualEventsRoot.cs
@@ -67,7 +67,7 @@ public partial class VirtualEventsRoot : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VirtualEventsRoot CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VirtualEventsRoot();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEvent>("events", Events);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventTownhall>("townhalls", Townhalls);
diff --git a/src/Microsoft.Graph/Generated/Models/VisualInfo.cs b/src/Microsoft.Graph/Generated/Models/VisualInfo.cs
index 1b83a4c173f..ffdbc123111 100644
--- a/src/Microsoft.Graph/Generated/Models/VisualInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/VisualInfo.cs
@@ -132,7 +132,7 @@ public VisualInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VisualInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VisualInfo();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ImageInfo>("attribution", Attribution);
             writer.WriteStringValue("backgroundColor", BackgroundColor);
             writer.WriteObjectValue<UntypedNode>("content", Content);
diff --git a/src/Microsoft.Graph/Generated/Models/VoiceAuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/VoiceAuthenticationMethodConfiguration.cs
index 282616f5eaf..cda0e01f597 100644
--- a/src/Microsoft.Graph/Generated/Models/VoiceAuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/VoiceAuthenticationMethodConfiguration.cs
@@ -48,7 +48,7 @@ public VoiceAuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VoiceAuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VoiceAuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -69,7 +69,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AuthenticationMethodTarget>("includeTargets", IncludeTargets);
             writer.WriteBoolValue("isOfficePhoneAllowed", IsOfficePhoneAllowed);
diff --git a/src/Microsoft.Graph/Generated/Models/VppLicensingType.cs b/src/Microsoft.Graph/Generated/Models/VppLicensingType.cs
index 7e37f465130..30bc470fadd 100644
--- a/src/Microsoft.Graph/Generated/Models/VppLicensingType.cs
+++ b/src/Microsoft.Graph/Generated/Models/VppLicensingType.cs
@@ -65,7 +65,7 @@ public VppLicensingType()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VppLicensingType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VppLicensingType();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("supportsDeviceLicensing", SupportsDeviceLicensing);
             writer.WriteBoolValue("supportsUserLicensing", SupportsUserLicensing);
diff --git a/src/Microsoft.Graph/Generated/Models/VppToken.cs b/src/Microsoft.Graph/Generated/Models/VppToken.cs
index ef1f477024f..cf41db1b701 100644
--- a/src/Microsoft.Graph/Generated/Models/VppToken.cs
+++ b/src/Microsoft.Graph/Generated/Models/VppToken.cs
@@ -126,7 +126,7 @@ public string Token
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VppToken CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VppToken();
         }
         /// <summary>
@@ -156,7 +156,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appleId", AppleId);
             writer.WriteBoolValue("automaticallyUpdateApps", AutomaticallyUpdateApps);
diff --git a/src/Microsoft.Graph/Generated/Models/VppTokenCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/VppTokenCollectionResponse.cs
index 15f22e4fd0d..71ee8d6e665 100644
--- a/src/Microsoft.Graph/Generated/Models/VppTokenCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/VppTokenCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class VppTokenCollectionResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.VppTokenCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VppTokenCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VppToken>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/VulnerabilityState.cs b/src/Microsoft.Graph/Generated/Models/VulnerabilityState.cs
index 9c6def27586..429041f085c 100644
--- a/src/Microsoft.Graph/Generated/Models/VulnerabilityState.cs
+++ b/src/Microsoft.Graph/Generated/Models/VulnerabilityState.cs
@@ -90,7 +90,7 @@ public VulnerabilityState()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.VulnerabilityState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.VulnerabilityState();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("cve", Cve);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("severity", Severity);
diff --git a/src/Microsoft.Graph/Generated/Models/WatermarkProtectionValues.cs b/src/Microsoft.Graph/Generated/Models/WatermarkProtectionValues.cs
index c198079d8b6..4e5e0c4a672 100644
--- a/src/Microsoft.Graph/Generated/Models/WatermarkProtectionValues.cs
+++ b/src/Microsoft.Graph/Generated/Models/WatermarkProtectionValues.cs
@@ -64,7 +64,7 @@ public WatermarkProtectionValues()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WatermarkProtectionValues CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WatermarkProtectionValues();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isEnabledForContentSharing", IsEnabledForContentSharing);
             writer.WriteBoolValue("isEnabledForVideo", IsEnabledForVideo);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/WebApp.cs b/src/Microsoft.Graph/Generated/Models/WebApp.cs
index 84b471c7201..0daa873d085 100644
--- a/src/Microsoft.Graph/Generated/Models/WebApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/WebApp.cs
@@ -49,7 +49,7 @@ public WebApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WebApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WebApp();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appUrl", AppUrl);
             writer.WriteBoolValue("useManagedBrowser", UseManagedBrowser);
diff --git a/src/Microsoft.Graph/Generated/Models/WebApplication.cs b/src/Microsoft.Graph/Generated/Models/WebApplication.cs
index dcc6ea34d13..8195a224ea0 100644
--- a/src/Microsoft.Graph/Generated/Models/WebApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/WebApplication.cs
@@ -132,7 +132,7 @@ public WebApplication()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WebApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WebApplication();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("homePageUrl", HomePageUrl);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ImplicitGrantSettings>("implicitGrantSettings", ImplicitGrantSettings);
             writer.WriteStringValue("logoutUrl", LogoutUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/WebPart.cs b/src/Microsoft.Graph/Generated/Models/WebPart.cs
index eefe22de52b..13e8af134e7 100644
--- a/src/Microsoft.Graph/Generated/Models/WebPart.cs
+++ b/src/Microsoft.Graph/Generated/Models/WebPart.cs
@@ -19,7 +19,7 @@ public partial class WebPart : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WebPart CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -44,7 +44,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/WebPartCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WebPartCollectionResponse.cs
index e08e4163086..09074e8286a 100644
--- a/src/Microsoft.Graph/Generated/Models/WebPartCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WebPartCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WebPartCollectionResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WebPartCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WebPartCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WebPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WebPartData.cs b/src/Microsoft.Graph/Generated/Models/WebPartData.cs
index 6fe5b8b622a..ecdb57dc909 100644
--- a/src/Microsoft.Graph/Generated/Models/WebPartData.cs
+++ b/src/Microsoft.Graph/Generated/Models/WebPartData.cs
@@ -132,7 +132,7 @@ public WebPartData()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WebPartData CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WebPartData();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("dataVersion", DataVersion);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/WebPartPosition.cs b/src/Microsoft.Graph/Generated/Models/WebPartPosition.cs
index 1275d793600..b209f879f74 100644
--- a/src/Microsoft.Graph/Generated/Models/WebPartPosition.cs
+++ b/src/Microsoft.Graph/Generated/Models/WebPartPosition.cs
@@ -76,7 +76,7 @@ public WebPartPosition()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WebPartPosition CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WebPartPosition();
         }
         /// <summary>
@@ -100,7 +100,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDoubleValue("columnId", ColumnId);
             writer.WriteDoubleValue("horizontalSectionId", HorizontalSectionId);
             writer.WriteBoolValue("isInVerticalSection", IsInVerticalSection);
diff --git a/src/Microsoft.Graph/Generated/Models/Website.cs b/src/Microsoft.Graph/Generated/Models/Website.cs
index dac8f76ca8d..7a0e7656fdc 100644
--- a/src/Microsoft.Graph/Generated/Models/Website.cs
+++ b/src/Microsoft.Graph/Generated/Models/Website.cs
@@ -90,7 +90,7 @@ public Website()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Website CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Website();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("address", Address);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/WhatIfAnalysisResult.cs b/src/Microsoft.Graph/Generated/Models/WhatIfAnalysisResult.cs
index e6a777f95b4..19747542879 100644
--- a/src/Microsoft.Graph/Generated/Models/WhatIfAnalysisResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/WhatIfAnalysisResult.cs
@@ -31,7 +31,7 @@ public bool? PolicyApplies
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WhatIfAnalysisResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WhatIfAnalysisResult();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WhatIfAnalysisReasons>("analysisReasons", AnalysisReasons);
             writer.WriteBoolValue("policyApplies", PolicyApplies);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobApp.cs b/src/Microsoft.Graph/Generated/Models/Win32LobApp.cs
index 0cd6855d51d..36d54998509 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobApp.cs
@@ -185,7 +185,7 @@ public Win32LobApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Win32LobApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobApp();
         }
         /// <summary>
@@ -217,7 +217,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsArchitecture>("applicableArchitectures", ApplicableArchitectures);
             writer.WriteStringValue("installCommandLine", InstallCommandLine);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppAssignmentSettings.cs
index 75a5ce86ce4..5c249954d04 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppAssignmentSettings.cs
@@ -87,7 +87,7 @@ public Win32LobAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Win32LobAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppAssignmentSettings();
         }
         /// <summary>
@@ -111,7 +111,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Win32LobAppAutoUpdateSettings>("autoUpdateSettings", AutoUpdateSettings);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Win32LobAppDeliveryOptimizationPriority>("deliveryOptimizationPriority", DeliveryOptimizationPriority);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppAutoUpdateSettings.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppAutoUpdateSettings.cs
index 58e131db804..ba22ae00423 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppAutoUpdateSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppAutoUpdateSettings.cs
@@ -59,7 +59,7 @@ public Win32LobAppAutoUpdateSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Win32LobAppAutoUpdateSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppAutoUpdateSettings();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Win32LobAutoUpdateSupersededAppsState>("autoUpdateSupersededAppsState", AutoUpdateSupersededAppsState);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppCollectionResponse.cs
index 60ebbd4ef2e..0399899eca6 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class Win32LobAppCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Win32LobAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Win32LobApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppFileSystemRule.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppFileSystemRule.cs
index 65d91e6dd0d..b47dae5dfa9 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppFileSystemRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppFileSystemRule.cs
@@ -93,7 +93,7 @@ public Win32LobAppFileSystemRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Win32LobAppFileSystemRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppFileSystemRule();
         }
         /// <summary>
@@ -118,7 +118,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("check32BitOn64System", Check32BitOn64System);
             writer.WriteStringValue("comparisonValue", ComparisonValue);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppInstallExperience.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppInstallExperience.cs
index 5c3c5b41e8f..2f1fea8e304 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppInstallExperience.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppInstallExperience.cs
@@ -65,7 +65,7 @@ public Win32LobAppInstallExperience()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Win32LobAppInstallExperience CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppInstallExperience();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Win32LobAppRestartBehavior>("deviceRestartBehavior", DeviceRestartBehavior);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RunAsAccountType>("runAsAccount", RunAsAccount);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppMsiInformation.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppMsiInformation.cs
index 5d4592872d2..32813cc3824 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppMsiInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppMsiInformation.cs
@@ -145,7 +145,7 @@ public Win32LobAppMsiInformation()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Win32LobAppMsiInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppMsiInformation();
         }
         /// <summary>
@@ -172,7 +172,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Win32LobAppMsiPackageType>("packageType", PackageType);
             writer.WriteStringValue("productCode", ProductCode);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppPowerShellScriptRule.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppPowerShellScriptRule.cs
index f8d95851333..47cacb74e51 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppPowerShellScriptRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppPowerShellScriptRule.cs
@@ -105,7 +105,7 @@ public Win32LobAppPowerShellScriptRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Win32LobAppPowerShellScriptRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppPowerShellScriptRule();
         }
         /// <summary>
@@ -132,7 +132,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("comparisonValue", ComparisonValue);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppProductCodeRule.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppProductCodeRule.cs
index 2dbcdaa440c..049bf0ad9ac 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppProductCodeRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppProductCodeRule.cs
@@ -65,7 +65,7 @@ public Win32LobAppProductCodeRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Win32LobAppProductCodeRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppProductCodeRule();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("productCode", ProductCode);
             writer.WriteStringValue("productVersion", ProductVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppRegistryRule.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppRegistryRule.cs
index 867bb0859f7..6b861c159f0 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppRegistryRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppRegistryRule.cs
@@ -93,7 +93,7 @@ public Win32LobAppRegistryRule() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Win32LobAppRegistryRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppRegistryRule();
         }
         /// <summary>
@@ -118,7 +118,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("check32BitOn64System", Check32BitOn64System);
             writer.WriteStringValue("comparisonValue", ComparisonValue);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppRestartSettings.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppRestartSettings.cs
index 9f56a618e99..1d7e50362fc 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppRestartSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppRestartSettings.cs
@@ -71,7 +71,7 @@ public Win32LobAppRestartSettings()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Win32LobAppRestartSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppRestartSettings();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("countdownDisplayBeforeRestartInMinutes", CountdownDisplayBeforeRestartInMinutes);
             writer.WriteIntValue("gracePeriodInMinutes", GracePeriodInMinutes);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppReturnCode.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppReturnCode.cs
index 3b9ce81bc5c..9d90cbf7c29 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppReturnCode.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppReturnCode.cs
@@ -65,7 +65,7 @@ public Win32LobAppReturnCode()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Win32LobAppReturnCode CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Win32LobAppReturnCode();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("returnCode", ReturnCode);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Win32LobAppReturnCodeType>("type", Type);
diff --git a/src/Microsoft.Graph/Generated/Models/Win32LobAppRule.cs b/src/Microsoft.Graph/Generated/Models/Win32LobAppRule.cs
index edd32a813d4..b3fffeccdf7 100644
--- a/src/Microsoft.Graph/Generated/Models/Win32LobAppRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/Win32LobAppRule.cs
@@ -59,7 +59,7 @@ public Win32LobAppRule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Win32LobAppRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -88,7 +88,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Win32LobAppRuleType>("ruleType", RuleType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10CompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/Windows10CompliancePolicy.cs
index 5161368917e..4e60fb6aef8 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10CompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10CompliancePolicy.cs
@@ -181,7 +181,7 @@ public Windows10CompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10CompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10CompliancePolicy();
         }
         /// <summary>
@@ -219,7 +219,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("bitLockerEnabled", BitLockerEnabled);
             writer.WriteBoolValue("codeIntegrityEnabled", CodeIntegrityEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10CustomConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows10CustomConfiguration.cs
index 44e616a5d6b..38d6fda5b9a 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10CustomConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10CustomConfiguration.cs
@@ -43,7 +43,7 @@ public Windows10CustomConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10CustomConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10CustomConfiguration();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OmaSetting>("omaSettings", OmaSettings);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10EndpointProtectionConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows10EndpointProtectionConfiguration.cs
index 8747bbdc9c3..4e8a6a3b363 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10EndpointProtectionConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10EndpointProtectionConfiguration.cs
@@ -333,7 +333,7 @@ public Windows10EndpointProtectionConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10EndpointProtectionConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10EndpointProtectionConfiguration();
         }
         /// <summary>
@@ -388,7 +388,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("applicationGuardAllowPersistence", ApplicationGuardAllowPersistence);
             writer.WriteBoolValue("applicationGuardAllowPrintToLocalPrinters", ApplicationGuardAllowPrintToLocalPrinters);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10EnrollmentCompletionPageConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows10EnrollmentCompletionPageConfiguration.cs
index a93450e7cd2..29da4fbd77b 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10EnrollmentCompletionPageConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10EnrollmentCompletionPageConfiguration.cs
@@ -33,7 +33,7 @@ public Windows10EnrollmentCompletionPageConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10EnrollmentCompletionPageConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10EnrollmentCompletionPageConfiguration();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowNonBlockingAppInstallation", AllowNonBlockingAppInstallation);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10EnterpriseModernAppManagementConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows10EnterpriseModernAppManagementConfiguration.cs
index d0b0804b142..187270232c6 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10EnterpriseModernAppManagementConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10EnterpriseModernAppManagementConfiguration.cs
@@ -33,7 +33,7 @@ public Windows10EnterpriseModernAppManagementConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10EnterpriseModernAppManagementConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10EnterpriseModernAppManagementConfiguration();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("uninstallBuiltInApps", UninstallBuiltInApps);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10GeneralConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows10GeneralConfiguration.cs
index 26ea320eb9e..ede62e00caf 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10GeneralConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10GeneralConfiguration.cs
@@ -1434,7 +1434,7 @@ public Windows10GeneralConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10GeneralConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10GeneralConfiguration();
         }
         /// <summary>
@@ -1654,7 +1654,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("accountsBlockAddingNonMicrosoftAccountEmail", AccountsBlockAddingNonMicrosoftAccountEmail);
             writer.WriteBoolValue("antiTheftModeBlocked", AntiTheftModeBlocked);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10MobileCompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/Windows10MobileCompliancePolicy.cs
index afb2f4958f1..d61c59d5200 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10MobileCompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10MobileCompliancePolicy.cs
@@ -143,7 +143,7 @@ public Windows10MobileCompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10MobileCompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10MobileCompliancePolicy();
         }
         /// <summary>
@@ -178,7 +178,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("bitLockerEnabled", BitLockerEnabled);
             writer.WriteBoolValue("codeIntegrityEnabled", CodeIntegrityEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10NetworkProxyServer.cs b/src/Microsoft.Graph/Generated/Models/Windows10NetworkProxyServer.cs
index 567fd58c6a5..e46e8e74be4 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10NetworkProxyServer.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10NetworkProxyServer.cs
@@ -91,7 +91,7 @@ public Windows10NetworkProxyServer()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.Windows10NetworkProxyServer CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10NetworkProxyServer();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("address", Address);
             writer.WriteCollectionOfPrimitiveValues<string>("exceptions", Exceptions);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10SecureAssessmentConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows10SecureAssessmentConfiguration.cs
index 6173584f159..ba9c7e419a5 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10SecureAssessmentConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10SecureAssessmentConfiguration.cs
@@ -77,7 +77,7 @@ public Windows10SecureAssessmentConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10SecureAssessmentConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10SecureAssessmentConfiguration();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowPrinting", AllowPrinting);
             writer.WriteBoolValue("allowScreenCapture", AllowScreenCapture);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows10TeamGeneralConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows10TeamGeneralConfiguration.cs
index de18d1d3030..de552fae08f 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows10TeamGeneralConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows10TeamGeneralConfiguration.cs
@@ -178,7 +178,7 @@ public Windows10TeamGeneralConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows10TeamGeneralConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows10TeamGeneralConfiguration();
         }
         /// <summary>
@@ -217,7 +217,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("azureOperationalInsightsBlockTelemetry", AzureOperationalInsightsBlockTelemetry);
             writer.WriteStringValue("azureOperationalInsightsWorkspaceId", AzureOperationalInsightsWorkspaceId);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows81CompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/Windows81CompliancePolicy.cs
index 9be6b0d14ba..5691f875bd2 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows81CompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows81CompliancePolicy.cs
@@ -113,7 +113,7 @@ public Windows81CompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows81CompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows81CompliancePolicy();
         }
         /// <summary>
@@ -143,7 +143,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("osMaximumVersion", OsMaximumVersion);
             writer.WriteStringValue("osMinimumVersion", OsMinimumVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/Windows81GeneralConfiguration.cs b/src/Microsoft.Graph/Generated/Models/Windows81GeneralConfiguration.cs
index f66b1a00d77..796d12ae144 100644
--- a/src/Microsoft.Graph/Generated/Models/Windows81GeneralConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/Windows81GeneralConfiguration.cs
@@ -255,7 +255,7 @@ public Windows81GeneralConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Windows81GeneralConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Windows81GeneralConfiguration();
         }
         /// <summary>
@@ -307,7 +307,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("accountsBlockAddingNonMicrosoftAccountEmail", AccountsBlockAddingNonMicrosoftAccountEmail);
             writer.WriteBoolValue("browserBlockAutofill", BrowserBlockAutofill);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsAppX.cs b/src/Microsoft.Graph/Generated/Models/WindowsAppX.cs
index 17793920ba9..7124fed9e48 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsAppX.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsAppX.cs
@@ -119,7 +119,7 @@ public WindowsAppX() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsAppX CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsAppX();
         }
         /// <summary>
@@ -145,7 +145,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsArchitecture>("applicableArchitectures", ApplicableArchitectures);
             writer.WriteStringValue("identityName", IdentityName);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsAppXAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/WindowsAppXAppAssignmentSettings.cs
index d264cd105ce..d6c4a18421a 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsAppXAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsAppXAppAssignmentSettings.cs
@@ -33,7 +33,7 @@ public WindowsAppXAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsAppXAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsAppXAppAssignmentSettings();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("useDeviceContext", UseDeviceContext);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsAppXCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsAppXCollectionResponse.cs
index 269c7c89862..45bc88540a3 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsAppXCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsAppXCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsAppXCollectionResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsAppXCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsAppXCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsAppX>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfile.cs b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfile.cs
index fa56f1b3390..0cfa5ffb849 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfile.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfile.cs
@@ -178,7 +178,7 @@ public List<string> RoleScopeTagIds
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsAutopilotDeploymentProfile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsAutopilotDeploymentProfile();
         }
         /// <summary>
@@ -210,7 +210,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity>("assignedDevices", AssignedDevices);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfileAssignment.cs b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfileAssignment.cs
index 10c96ec5c41..695d372a6f5 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfileAssignment.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeploymentProfileAssignment.cs
@@ -20,7 +20,7 @@ public partial class WindowsAutopilotDeploymentProfileAssignment : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsAutopilotDeploymentProfileAssignment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsAutopilotDeploymentProfileAssignment();
         }
         /// <summary>
@@ -39,7 +39,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentity.cs b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentity.cs
index b3d2b7600f9..a1124ed1313 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentity.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentity.cs
@@ -256,7 +256,7 @@ public string UserPrincipalName
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity();
         }
         /// <summary>
@@ -291,7 +291,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("addressableUserName", AddressableUserName);
             writer.WriteStringValue("azureActiveDirectoryDeviceId", AzureActiveDirectoryDeviceId);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentityCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentityCollectionResponse.cs
index e1c7bcd7156..2437ccb006e 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentityCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsAutopilotDeviceIdentityCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsAutopilotDeviceIdentityCollectionResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentityCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentityCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsAutopilotDeviceIdentity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsDefenderAdvancedThreatProtectionConfiguration.cs b/src/Microsoft.Graph/Generated/Models/WindowsDefenderAdvancedThreatProtectionConfiguration.cs
index 17cc7ad61b5..8e066eb7a3a 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsDefenderAdvancedThreatProtectionConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsDefenderAdvancedThreatProtectionConfiguration.cs
@@ -39,7 +39,7 @@ public WindowsDefenderAdvancedThreatProtectionConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsDefenderAdvancedThreatProtectionConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsDefenderAdvancedThreatProtectionConfiguration();
         }
         /// <summary>
@@ -60,7 +60,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowSampleSharing", AllowSampleSharing);
             writer.WriteBoolValue("enableExpeditedTelemetryReporting", EnableExpeditedTelemetryReporting);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsDefenderScanActionResult.cs b/src/Microsoft.Graph/Generated/Models/WindowsDefenderScanActionResult.cs
index 31d05ffa368..41936dbde06 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsDefenderScanActionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsDefenderScanActionResult.cs
@@ -36,7 +36,7 @@ public string ScanType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsDefenderScanActionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsDefenderScanActionResult();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("scanType", ScanType);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsDeviceADAccount.cs b/src/Microsoft.Graph/Generated/Models/WindowsDeviceADAccount.cs
index cb34e38a9db..8b3e1d46ce6 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsDeviceADAccount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsDeviceADAccount.cs
@@ -58,7 +58,7 @@ public WindowsDeviceADAccount() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsDeviceADAccount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsDeviceADAccount();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("domainName", DomainName);
             writer.WriteStringValue("userName", UserName);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsDeviceAccount.cs b/src/Microsoft.Graph/Generated/Models/WindowsDeviceAccount.cs
index fe45d5e989c..02330c5b56a 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsDeviceAccount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsDeviceAccount.cs
@@ -68,7 +68,7 @@ public WindowsDeviceAccount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsDeviceAccount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -95,7 +95,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("password", Password);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsDeviceAzureADAccount.cs b/src/Microsoft.Graph/Generated/Models/WindowsDeviceAzureADAccount.cs
index 8ac3107b274..46b92fc8b8d 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsDeviceAzureADAccount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsDeviceAzureADAccount.cs
@@ -42,7 +42,7 @@ public WindowsDeviceAzureADAccount() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsDeviceAzureADAccount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsDeviceAzureADAccount();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareState.cs b/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareState.cs
index edec951a64d..e49395bfe51 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareState.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareState.cs
@@ -100,7 +100,7 @@ public DateTimeOffset? LastStateChangeDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsDeviceMalwareState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsDeviceMalwareState();
         }
         /// <summary>
@@ -129,7 +129,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("additionalInformationUrl", AdditionalInformationUrl);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsMalwareCategory>("category", Category);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareStateCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareStateCollectionResponse.cs
index 7c4ed00c9fb..e0c0a9ffa2a 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareStateCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsDeviceMalwareStateCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsDeviceMalwareStateCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsDeviceMalwareStateCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsDeviceMalwareStateCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsDeviceMalwareState>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsFirewallNetworkProfile.cs b/src/Microsoft.Graph/Generated/Models/WindowsFirewallNetworkProfile.cs
index e7f33dbc542..399658a83b0 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsFirewallNetworkProfile.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsFirewallNetworkProfile.cs
@@ -125,7 +125,7 @@ public WindowsFirewallNetworkProfile()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsFirewallNetworkProfile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsFirewallNetworkProfile();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("authorizedApplicationRulesFromGroupPolicyMerged", AuthorizedApplicationRulesFromGroupPolicyMerged);
             writer.WriteBoolValue("connectionSecurityRulesFromGroupPolicyMerged", ConnectionSecurityRulesFromGroupPolicyMerged);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.StateManagementSetting>("firewallEnabled", FirewallEnabled);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethod.cs b/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethod.cs
index 3c2918cd92a..68eab97eb03 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethod.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethod.cs
@@ -70,7 +70,7 @@ public WindowsHelloForBusinessAuthenticationMethod() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsHelloForBusinessAuthenticationMethod CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsHelloForBusinessAuthenticationMethod();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Device>("device", Device);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethodCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethodCollectionResponse.cs
index 891ae0e5098..72207f20baa 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethodCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsHelloForBusinessAuthenticationMethodCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsHelloForBusinessAuthenticationMethodCollectionRespon
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsHelloForBusinessAuthenticationMethodCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsHelloForBusinessAuthenticationMethodCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsHelloForBusinessAuthenticationMethod>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtection.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtection.cs
index 92a556ba679..849a8ccf03b 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtection.cs
@@ -327,7 +327,7 @@ public WindowsInformationProtection() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -377,7 +377,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TargetedManagedAppPolicyAssignment>("assignments", Assignments);
             writer.WriteBoolValue("azureRightsManagementServicesAllowed", AzureRightsManagementServicesAllowed);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionApp.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionApp.cs
index 795bc7d2828..0fb7ad97621 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionApp.cs
@@ -123,7 +123,7 @@ public WindowsInformationProtectionApp()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsInformationProtectionApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("denied", Denied);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummary.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummary.cs
index 985de8e7dbe..dd665a02fd5 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummary.cs
@@ -48,7 +48,7 @@ public int? DeviceCount
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("applicationName", ApplicationName);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ApplicationType>("applicationType", ApplicationType);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummaryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummaryCollectionResponse.cs
index cc0f8946c14..4f8922e5416 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummaryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLearningSummaryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsInformationProtectionAppLearningSummaryCollectionRes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummaryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummaryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLearningSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFile.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFile.cs
index 3138f4829b3..6ce91c57853 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFile.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFile.cs
@@ -84,7 +84,7 @@ public string Version
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteByteArrayValue("file", File);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFileCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFileCollectionResponse.cs
index ed0918e5e1e..410d3ffdb09 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFileCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionAppLockerFileCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsInformationProtectionAppLockerFileCollectionResponse
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFileCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFileCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsInformationProtectionAppLockerFile>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDataRecoveryCertificate.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDataRecoveryCertificate.cs
index 17593141b94..5ac7699d606 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDataRecoveryCertificate.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDataRecoveryCertificate.cs
@@ -107,7 +107,7 @@ public WindowsInformationProtectionDataRecoveryCertificate()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsInformationProtectionDataRecoveryCertificate CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionDataRecoveryCertificate();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteByteArrayValue("certificate", Certificate);
             writer.WriteStringValue("description", Description);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDesktopApp.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDesktopApp.cs
index 0bd471d86a3..00a7a6f4531 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDesktopApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionDesktopApp.cs
@@ -75,7 +75,7 @@ public WindowsInformationProtectionDesktopApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionDesktopApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionDesktopApp();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("binaryName", BinaryName);
             writer.WriteStringValue("binaryVersionHigh", BinaryVersionHigh);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionIPRangeCollection.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionIPRangeCollection.cs
index c6ae0095658..ef603adf450 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionIPRangeCollection.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionIPRangeCollection.cs
@@ -85,7 +85,7 @@ public WindowsInformationProtectionIPRangeCollection()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsInformationProtectionIPRangeCollection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionIPRangeCollection();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.IpRange>("ranges", Ranges);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummary.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummary.cs
index b6b9cbd7154..6354ed9f07c 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummary.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummary.cs
@@ -42,7 +42,7 @@ public string Url
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("deviceCount", DeviceCount);
             writer.WriteStringValue("url", Url);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummaryCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummaryCollectionResponse.cs
index 14ea078e761..c08321f1e89 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummaryCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionNetworkLearningSummaryCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsInformationProtectionNetworkLearningSummaryCollectio
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummaryCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummaryCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsInformationProtectionNetworkLearningSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicy.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicy.cs
index b2bfc68aabc..95390b85b58 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicy.cs
@@ -109,7 +109,7 @@ public WindowsInformationProtectionPolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("daysWithoutContactBeforeUnenroll", DaysWithoutContactBeforeUnenroll);
             writer.WriteStringValue("mdmEnrollmentUrl", MdmEnrollmentUrl);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicyCollectionResponse.cs
index c36aa87e321..0fcfcbb5ed0 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionPolicyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsInformationProtectionPolicyCollectionResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionPolicyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionPolicyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsInformationProtectionPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionProxiedDomainCollection.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionProxiedDomainCollection.cs
index 6175ca76c82..e9d235096fa 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionProxiedDomainCollection.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionProxiedDomainCollection.cs
@@ -85,7 +85,7 @@ public WindowsInformationProtectionProxiedDomainCollection()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsInformationProtectionProxiedDomainCollection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionProxiedDomainCollection();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProxiedDomain>("proxiedDomains", ProxiedDomains);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionResourceCollection.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionResourceCollection.cs
index a0463d14e2d..2d3eadb7556 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionResourceCollection.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionResourceCollection.cs
@@ -85,7 +85,7 @@ public WindowsInformationProtectionResourceCollection()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsInformationProtectionResourceCollection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionResourceCollection();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfPrimitiveValues<string>("resources", Resources);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionStoreApp.cs b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionStoreApp.cs
index 10e1e24e678..ddd79e461d9 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionStoreApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsInformationProtectionStoreApp.cs
@@ -27,7 +27,7 @@ public WindowsInformationProtectionStoreApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsInformationProtectionStoreApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsInformationProtectionStoreApp();
         }
         /// <summary>
@@ -46,7 +46,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareCategoryCount.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareCategoryCount.cs
index 9db8cffd1bd..aaf8c62458d 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareCategoryCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareCategoryCount.cs
@@ -83,7 +83,7 @@ public WindowsMalwareCategoryCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsMalwareCategoryCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareCategoryCount();
         }
         /// <summary>
@@ -108,7 +108,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("activeMalwareDetectionCount", ActiveMalwareDetectionCount);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsMalwareCategory>("category", Category);
             writer.WriteIntValue("deviceCount", DeviceCount);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareExecutionStateCount.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareExecutionStateCount.cs
index 5e3e47f5da5..92652cd6c7a 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareExecutionStateCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareExecutionStateCount.cs
@@ -71,7 +71,7 @@ public WindowsMalwareExecutionStateCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsMalwareExecutionStateCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareExecutionStateCount();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("deviceCount", DeviceCount);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsMalwareExecutionState>("executionState", ExecutionState);
             writer.WriteDateTimeOffsetValue("lastUpdateDateTime", LastUpdateDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformation.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformation.cs
index dc12a82354c..25c5201692a 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformation.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformation.cs
@@ -86,7 +86,7 @@ public DateTimeOffset? LastDetectionDateTime
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsMalwareInformation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareInformation();
         }
         /// <summary>
@@ -111,7 +111,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("additionalInformationUrl", AdditionalInformationUrl);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsMalwareCategory>("category", Category);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformationCollectionResponse.cs
index f1e9cd655bf..53cf57d327c 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareInformationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsMalwareInformationCollectionResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsMalwareInformationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareInformationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsMalwareInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareNameCount.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareNameCount.cs
index 899e5a0bfe2..0d9e9d2664e 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareNameCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareNameCount.cs
@@ -97,7 +97,7 @@ public WindowsMalwareNameCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsMalwareNameCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareNameCount();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("deviceCount", DeviceCount);
             writer.WriteDateTimeOffsetValue("lastUpdateDateTime", LastUpdateDateTime);
             writer.WriteStringValue("malwareIdentifier", MalwareIdentifier);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareOverview.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareOverview.cs
index 53cd463bef4..6f3ab34e838 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareOverview.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareOverview.cs
@@ -167,7 +167,7 @@ public WindowsMalwareOverview()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsMalwareOverview CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareOverview();
         }
         /// <summary>
@@ -196,7 +196,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsMalwareCategoryCount>("malwareCategorySummary", MalwareCategorySummary);
             writer.WriteIntValue("malwareDetectedDeviceCount", MalwareDetectedDeviceCount);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsMalwareExecutionStateCount>("malwareExecutionStateSummary", MalwareExecutionStateSummary);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareSeverityCount.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareSeverityCount.cs
index 8a3bdc29dd9..09bf767c0b1 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareSeverityCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareSeverityCount.cs
@@ -77,7 +77,7 @@ public WindowsMalwareSeverityCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsMalwareSeverityCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareSeverityCount();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("distinctMalwareCount", DistinctMalwareCount);
             writer.WriteDateTimeOffsetValue("lastUpdateDateTime", LastUpdateDateTime);
             writer.WriteIntValue("malwareDetectionCount", MalwareDetectionCount);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMalwareStateCount.cs b/src/Microsoft.Graph/Generated/Models/WindowsMalwareStateCount.cs
index fac9535bf45..838fea01955 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMalwareStateCount.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMalwareStateCount.cs
@@ -83,7 +83,7 @@ public WindowsMalwareStateCount()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsMalwareStateCount CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMalwareStateCount();
         }
         /// <summary>
@@ -108,7 +108,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("deviceCount", DeviceCount);
             writer.WriteIntValue("distinctMalwareCount", DistinctMalwareCount);
             writer.WriteDateTimeOffsetValue("lastUpdateDateTime", LastUpdateDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMicrosoftEdgeApp.cs b/src/Microsoft.Graph/Generated/Models/WindowsMicrosoftEdgeApp.cs
index 0633a810d32..69cd21c7140 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMicrosoftEdgeApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMicrosoftEdgeApp.cs
@@ -49,7 +49,7 @@ public WindowsMicrosoftEdgeApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsMicrosoftEdgeApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMicrosoftEdgeApp();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MicrosoftEdgeChannel>("channel", Channel);
             writer.WriteStringValue("displayLanguageLocale", DisplayLanguageLocale);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMinimumOperatingSystem.cs b/src/Microsoft.Graph/Generated/Models/WindowsMinimumOperatingSystem.cs
index 09af75b68e1..40d2587fa3e 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMinimumOperatingSystem.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMinimumOperatingSystem.cs
@@ -71,7 +71,7 @@ public WindowsMinimumOperatingSystem()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsMinimumOperatingSystem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMinimumOperatingSystem();
         }
         /// <summary>
@@ -94,7 +94,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("v10_0", V100);
             writer.WriteBoolValue("v8_0", V80);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMobileMSI.cs b/src/Microsoft.Graph/Generated/Models/WindowsMobileMSI.cs
index c05494b8fee..5eb30c5a4f4 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMobileMSI.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMobileMSI.cs
@@ -81,7 +81,7 @@ public WindowsMobileMSI() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsMobileMSI CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMobileMSI();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("commandLine", CommandLine);
             writer.WriteBoolValue("ignoreVersionDetection", IgnoreVersionDetection);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsMobileMSICollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsMobileMSICollectionResponse.cs
index 79abbaf8d1b..930a47759a5 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsMobileMSICollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsMobileMSICollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsMobileMSICollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsMobileMSICollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsMobileMSICollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsMobileMSI>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsPhone81CompliancePolicy.cs b/src/Microsoft.Graph/Generated/Models/WindowsPhone81CompliancePolicy.cs
index 12e69a2801e..a8b9e36f54e 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsPhone81CompliancePolicy.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsPhone81CompliancePolicy.cs
@@ -113,7 +113,7 @@ public WindowsPhone81CompliancePolicy() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsPhone81CompliancePolicy CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsPhone81CompliancePolicy();
         }
         /// <summary>
@@ -143,7 +143,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("osMaximumVersion", OsMaximumVersion);
             writer.WriteStringValue("osMinimumVersion", OsMinimumVersion);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsPhone81CustomConfiguration.cs b/src/Microsoft.Graph/Generated/Models/WindowsPhone81CustomConfiguration.cs
index 4860cef0a9b..79b17f30810 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsPhone81CustomConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsPhone81CustomConfiguration.cs
@@ -43,7 +43,7 @@ public WindowsPhone81CustomConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsPhone81CustomConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsPhone81CustomConfiguration();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OmaSetting>("omaSettings", OmaSettings);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsPhone81GeneralConfiguration.cs b/src/Microsoft.Graph/Generated/Models/WindowsPhone81GeneralConfiguration.cs
index dc3fb27c1f9..835033585d5 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsPhone81GeneralConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsPhone81GeneralConfiguration.cs
@@ -211,7 +211,7 @@ public WindowsPhone81GeneralConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsPhone81GeneralConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsPhone81GeneralConfiguration();
         }
         /// <summary>
@@ -259,7 +259,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("appsBlockCopyPaste", AppsBlockCopyPaste);
             writer.WriteBoolValue("bluetoothBlocked", BluetoothBlocked);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsProtectionState.cs b/src/Microsoft.Graph/Generated/Models/WindowsProtectionState.cs
index b939610b1b7..d3244a85453 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsProtectionState.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsProtectionState.cs
@@ -206,7 +206,7 @@ public bool? TamperProtectionEnabled
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsProtectionState CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsProtectionState();
         }
         /// <summary>
@@ -246,7 +246,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("antiMalwareVersion", AntiMalwareVersion);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsDeviceMalwareState>("detectedMalwareState", DetectedMalwareState);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsSetting.cs b/src/Microsoft.Graph/Generated/Models/WindowsSetting.cs
index 010d1cc5c64..a551117241f 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsSetting.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsSetting.cs
@@ -73,7 +73,7 @@ public string WindowsDeviceId
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsSetting CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsSetting();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsSettingInstance>("instances", Instances);
             writer.WriteStringValue("payloadType", PayloadType);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsSettingCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsSettingCollectionResponse.cs
index e9af452a81d..75f70c1fe28 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsSettingCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsSettingCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsSettingCollectionResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsSettingCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsSettingCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsSetting>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsSettingInstance.cs b/src/Microsoft.Graph/Generated/Models/WindowsSettingInstance.cs
index 0a672724b1c..ae3c711d706 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsSettingInstance.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsSettingInstance.cs
@@ -53,7 +53,7 @@ public string Payload
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsSettingInstance CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsSettingInstance();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteDateTimeOffsetValue("createdDateTime", CreatedDateTime);
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsSettingInstanceCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsSettingInstanceCollectionResponse.cs
index ed739653b8f..44e35183947 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsSettingInstanceCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsSettingInstanceCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsSettingInstanceCollectionResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsSettingInstanceCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsSettingInstanceCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsSettingInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppX.cs b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppX.cs
index d4091239c3e..079ef8bcbb6 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppX.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppX.cs
@@ -141,7 +141,7 @@ public WindowsUniversalAppX() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsUniversalAppX CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsUniversalAppX();
         }
         /// <summary>
@@ -169,7 +169,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsArchitecture>("applicableArchitectures", ApplicableArchitectures);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WindowsDeviceType>("applicableDeviceTypes", ApplicableDeviceTypes);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXAppAssignmentSettings.cs b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXAppAssignmentSettings.cs
index 189003ae43a..7ddb9398d0e 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXAppAssignmentSettings.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXAppAssignmentSettings.cs
@@ -33,7 +33,7 @@ public WindowsUniversalAppXAppAssignmentSettings() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsUniversalAppXAppAssignmentSettings CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsUniversalAppXAppAssignmentSettings();
         }
         /// <summary>
@@ -53,7 +53,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("useDeviceContext", UseDeviceContext);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXCollectionResponse.cs
index c19049b2833..c8b0dc295d2 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsUniversalAppXCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsUniversalAppXCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsUniversalAppXCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsUniversalAppX>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXContainedApp.cs b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXContainedApp.cs
index a398b159953..ac7a2029afc 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXContainedApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUniversalAppXContainedApp.cs
@@ -43,7 +43,7 @@ public WindowsUniversalAppXContainedApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsUniversalAppXContainedApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsUniversalAppXContainedApp();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appUserModelId", AppUserModelId);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUpdateActiveHoursInstall.cs b/src/Microsoft.Graph/Generated/Models/WindowsUpdateActiveHoursInstall.cs
index eb97eca0056..03b17946506 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUpdateActiveHoursInstall.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUpdateActiveHoursInstall.cs
@@ -39,7 +39,7 @@ public WindowsUpdateActiveHoursInstall() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsUpdateActiveHoursInstall CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsUpdateActiveHoursInstall();
         }
         /// <summary>
@@ -60,7 +60,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteTimeValue("activeHoursEnd", ActiveHoursEnd);
             writer.WriteTimeValue("activeHoursStart", ActiveHoursStart);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUpdateForBusinessConfiguration.cs b/src/Microsoft.Graph/Generated/Models/WindowsUpdateForBusinessConfiguration.cs
index f68654900a5..8f3c38c021e 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUpdateForBusinessConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUpdateForBusinessConfiguration.cs
@@ -254,7 +254,7 @@ public WindowsUpdateForBusinessConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsUpdateForBusinessConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsUpdateForBusinessConfiguration();
         }
         /// <summary>
@@ -309,7 +309,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("allowWindows11Upgrade", AllowWindows11Upgrade);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.AutomaticUpdateMode>("automaticUpdateMode", AutomaticUpdateMode);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUpdateInstallScheduleType.cs b/src/Microsoft.Graph/Generated/Models/WindowsUpdateInstallScheduleType.cs
index 028d9135cae..0716c16f305 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUpdateInstallScheduleType.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUpdateInstallScheduleType.cs
@@ -52,7 +52,7 @@ public WindowsUpdateInstallScheduleType()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WindowsUpdateInstallScheduleType CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             var mappingValue = parseNode.GetChildNode("@odata.type")?.GetStringValue();
             return mappingValue switch
             {
@@ -78,7 +78,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsUpdateScheduledInstall.cs b/src/Microsoft.Graph/Generated/Models/WindowsUpdateScheduledInstall.cs
index 1093a2c1ac8..a279ad11474 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsUpdateScheduledInstall.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsUpdateScheduledInstall.cs
@@ -39,7 +39,7 @@ public WindowsUpdateScheduledInstall() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsUpdateScheduledInstall CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsUpdateScheduledInstall();
         }
         /// <summary>
@@ -60,7 +60,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WeeklySchedule>("scheduledInstallDay", ScheduledInstallDay);
             writer.WriteTimeValue("scheduledInstallTime", ScheduledInstallTime);
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsWebApp.cs b/src/Microsoft.Graph/Generated/Models/WindowsWebApp.cs
index 8af82585f35..d43a473b783 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsWebApp.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsWebApp.cs
@@ -43,7 +43,7 @@ public WindowsWebApp() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsWebApp CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsWebApp();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("appUrl", AppUrl);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WindowsWebAppCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WindowsWebAppCollectionResponse.cs
index 15d840dd235..14ad3f27e23 100644
--- a/src/Microsoft.Graph/Generated/Models/WindowsWebAppCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WindowsWebAppCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WindowsWebAppCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WindowsWebAppCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WindowsWebAppCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WindowsWebApp>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/Workbook.cs b/src/Microsoft.Graph/Generated/Models/Workbook.cs
index 4b2e8f75d24..54d6d031adb 100644
--- a/src/Microsoft.Graph/Generated/Models/Workbook.cs
+++ b/src/Microsoft.Graph/Generated/Models/Workbook.cs
@@ -131,7 +131,7 @@ public partial class Workbook : global::Microsoft.Graph.Models.Entity, IParsable
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.Workbook CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.Workbook();
         }
         /// <summary>
@@ -157,7 +157,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookApplication>("application", Application);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookComment>("comments", Comments);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookApplication.cs b/src/Microsoft.Graph/Generated/Models/WorkbookApplication.cs
index 8e7d00342ae..93b82a54423 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookApplication.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookApplication.cs
@@ -35,7 +35,7 @@ public string CalculationMode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookApplication CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookApplication();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("calculationMode", CalculationMode);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChart.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChart.cs
index 03af3466087..c6b49683493 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChart.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChart.cs
@@ -171,7 +171,7 @@ public double? Width
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChart CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChart();
         }
         /// <summary>
@@ -202,7 +202,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartAxes>("axes", Axes);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartDataLabels>("dataLabels", DataLabels);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartAreaFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartAreaFormat.cs
index 1458ebe50a4..d813b9b2e68 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartAreaFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartAreaFormat.cs
@@ -51,7 +51,7 @@ public partial class WorkbookChartAreaFormat : global::Microsoft.Graph.Models.En
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartAreaFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartAreaFormat();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFill>("fill", Fill);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFont>("font", Font);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxes.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxes.cs
index a73410a79fd..e40f32499b1 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxes.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxes.cs
@@ -67,7 +67,7 @@ public partial class WorkbookChartAxes : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartAxes CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartAxes();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartAxis>("categoryAxis", CategoryAxis);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartAxis>("seriesAxis", SeriesAxis);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxis.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxis.cs
index 7358e13757c..ac9a09727db 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxis.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxis.cs
@@ -147,7 +147,7 @@ public UntypedNode MinorUnit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartAxis CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartAxis();
         }
         /// <summary>
@@ -174,7 +174,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartAxisFormat>("format", Format);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartGridlines>("majorGridlines", MajorGridlines);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisFormat.cs
index 53aabdb44d4..3acfc91c7b6 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisFormat.cs
@@ -51,7 +51,7 @@ public partial class WorkbookChartAxisFormat : global::Microsoft.Graph.Models.En
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartAxisFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartAxisFormat();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFont>("font", Font);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartLineFormat>("line", Line);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitle.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitle.cs
index c359e2eee4d..f13ab9c6e47 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitle.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitle.cs
@@ -57,7 +57,7 @@ public bool? Visible
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartAxisTitle CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartAxisTitle();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat>("format", Format);
             writer.WriteStringValue("text", Text);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitleFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitleFormat.cs
index ad42cea75b6..d583dda4dcd 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitleFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartAxisTitleFormat.cs
@@ -35,7 +35,7 @@ public partial class WorkbookChartAxisTitleFormat : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartAxisTitleFormat();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFont>("font", Font);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartCollectionResponse.cs
index a0426288168..a138611d77d 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookChartCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookChart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabelFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabelFormat.cs
index f92c0a6a375..eba2748628b 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabelFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabelFormat.cs
@@ -51,7 +51,7 @@ public partial class WorkbookChartDataLabelFormat : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartDataLabelFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartDataLabelFormat();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFill>("fill", Fill);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFont>("font", Font);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabels.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabels.cs
index 2ff89c27418..9324562d76b 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabels.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartDataLabels.cs
@@ -103,7 +103,7 @@ public bool? ShowValue
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartDataLabels CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartDataLabels();
         }
         /// <summary>
@@ -131,7 +131,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartDataLabelFormat>("format", Format);
             writer.WriteStringValue("position", Position);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartFill.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartFill.cs
index 5383a1a62f9..d4d2b9aaeb2 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartFill.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartFill.cs
@@ -19,7 +19,7 @@ public partial class WorkbookChartFill : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartFill CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartFill();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartFont.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartFont.cs
index 731b1873b6c..1ec8919d906 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartFont.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartFont.cs
@@ -85,7 +85,7 @@ public string Underline
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartFont CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartFont();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("bold", Bold);
             writer.WriteStringValue("color", Color);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlines.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlines.cs
index 34bd8e6ab60..afce510b99a 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlines.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlines.cs
@@ -41,7 +41,7 @@ public bool? Visible
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartGridlines CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartGridlines();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat>("format", Format);
             writer.WriteBoolValue("visible", Visible);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlinesFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlinesFormat.cs
index bc878ccd709..3df052a5ee2 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlinesFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartGridlinesFormat.cs
@@ -35,7 +35,7 @@ public partial class WorkbookChartGridlinesFormat : global::Microsoft.Graph.Mode
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartGridlinesFormat();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartLineFormat>("line", Line);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartLegend.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartLegend.cs
index 359bdc76f3b..07a610811aa 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartLegend.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartLegend.cs
@@ -63,7 +63,7 @@ public bool? Visible
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartLegend CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartLegend();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartLegendFormat>("format", Format);
             writer.WriteBoolValue("overlay", Overlay);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartLegendFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartLegendFormat.cs
index 3eb127e59f2..5ddfb05ae9e 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartLegendFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartLegendFormat.cs
@@ -51,7 +51,7 @@ public partial class WorkbookChartLegendFormat : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartLegendFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartLegendFormat();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFill>("fill", Fill);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFont>("font", Font);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartLineFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartLineFormat.cs
index 7af125935c8..79b01ec5945 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartLineFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartLineFormat.cs
@@ -35,7 +35,7 @@ public string Color
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartLineFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartLineFormat();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("color", Color);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartPoint.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartPoint.cs
index 1703caafd8d..44bedf035e1 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartPoint.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartPoint.cs
@@ -51,7 +51,7 @@ public UntypedNode Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartPoint CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartPoint();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartPointFormat>("format", Format);
             writer.WriteObjectValue<UntypedNode>("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartPointCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartPointCollectionResponse.cs
index 620af1dd31b..d86eba9cfff 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartPointCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartPointCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookChartPointCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartPointCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartPointCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookChartPoint>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartPointFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartPointFormat.cs
index ac006fc23f4..99def77a111 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartPointFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartPointFormat.cs
@@ -35,7 +35,7 @@ public partial class WorkbookChartPointFormat : global::Microsoft.Graph.Models.E
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartPointFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartPointFormat();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFill>("fill", Fill);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartSeries.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartSeries.cs
index 2921fb9a02a..b70edf915b7 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartSeries.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartSeries.cs
@@ -67,7 +67,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartSeries CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartSeries();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartSeriesFormat>("format", Format);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesCollectionResponse.cs
index 5c4028637a4..ca6d5300554 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookChartSeriesCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartSeriesCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartSeriesCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookChartSeries>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesFormat.cs
index 896f18ec37d..1952f431535 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartSeriesFormat.cs
@@ -51,7 +51,7 @@ public partial class WorkbookChartSeriesFormat : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartSeriesFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartSeriesFormat();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFill>("fill", Fill);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartLineFormat>("line", Line);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartTitle.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartTitle.cs
index ab677281775..68056477dc9 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartTitle.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartTitle.cs
@@ -63,7 +63,7 @@ public bool? Visible
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartTitle CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartTitle();
         }
         /// <summary>
@@ -86,7 +86,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartTitleFormat>("format", Format);
             writer.WriteBoolValue("overlay", Overlay);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookChartTitleFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookChartTitleFormat.cs
index 68f1aee4626..ff32a6fe6f2 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookChartTitleFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookChartTitleFormat.cs
@@ -51,7 +51,7 @@ public partial class WorkbookChartTitleFormat : global::Microsoft.Graph.Models.E
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookChartTitleFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookChartTitleFormat();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFill>("fill", Fill);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookChartFont>("font", Font);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookComment.cs b/src/Microsoft.Graph/Generated/Models/WorkbookComment.cs
index 8d18dd0bce2..75348ca0b93 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookComment.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookComment.cs
@@ -67,7 +67,7 @@ public string ContentType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookComment CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookComment();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookCommentCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookCommentCollectionResponse.cs
index 8221faf97c0..b8b1db482ab 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookCommentCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookCommentCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookCommentCollectionResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookCommentCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookCommentCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookComment>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookCommentReply.cs b/src/Microsoft.Graph/Generated/Models/WorkbookCommentReply.cs
index 4683be430c7..73a56ee83dc 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookCommentReply.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookCommentReply.cs
@@ -51,7 +51,7 @@ public string ContentType
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookCommentReply CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookCommentReply();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("content", Content);
             writer.WriteStringValue("contentType", ContentType);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookCommentReplyCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookCommentReplyCollectionResponse.cs
index 429c53b2b7d..f2ba2eee26c 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookCommentReplyCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookCommentReplyCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookCommentReplyCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookCommentReplyCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookCommentReplyCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookCommentReply>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookFilter.cs b/src/Microsoft.Graph/Generated/Models/WorkbookFilter.cs
index 7d6f8dac546..1cc7d8553f7 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookFilter.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookFilter.cs
@@ -35,7 +35,7 @@ public partial class WorkbookFilter : global::Microsoft.Graph.Models.Entity, IPa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookFilter CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookFilter();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookFilterCriteria>("criteria", Criteria);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookFilterCriteria.cs b/src/Microsoft.Graph/Generated/Models/WorkbookFilterCriteria.cs
index 93604180870..258ea3751ec 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookFilterCriteria.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookFilterCriteria.cs
@@ -180,7 +180,7 @@ public WorkbookFilterCriteria()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkbookFilterCriteria CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookFilterCriteria();
         }
         /// <summary>
@@ -208,7 +208,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("color", Color);
             writer.WriteStringValue("criterion1", Criterion1);
             writer.WriteStringValue("criterion2", Criterion2);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookFormatProtection.cs b/src/Microsoft.Graph/Generated/Models/WorkbookFormatProtection.cs
index ac98d75f808..03e62e7b227 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookFormatProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookFormatProtection.cs
@@ -31,7 +31,7 @@ public bool? Locked
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookFormatProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookFormatProtection();
         }
         /// <summary>
@@ -52,7 +52,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("formulaHidden", FormulaHidden);
             writer.WriteBoolValue("locked", Locked);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookFunctionResult.cs b/src/Microsoft.Graph/Generated/Models/WorkbookFunctionResult.cs
index 25dab7626a1..0f91ff2afc5 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookFunctionResult.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookFunctionResult.cs
@@ -51,7 +51,7 @@ public UntypedNode Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookFunctionResult CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookFunctionResult();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("error", Error);
             writer.WriteObjectValue<UntypedNode>("value", Value);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookFunctions.cs b/src/Microsoft.Graph/Generated/Models/WorkbookFunctions.cs
index 3c657603516..a09c55b5945 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookFunctions.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookFunctions.cs
@@ -19,7 +19,7 @@ public partial class WorkbookFunctions : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookFunctions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookFunctions();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookIcon.cs b/src/Microsoft.Graph/Generated/Models/WorkbookIcon.cs
index aeb61c324e7..cdf3ab84752 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookIcon.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookIcon.cs
@@ -74,7 +74,7 @@ public WorkbookIcon()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkbookIcon CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookIcon();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("index", Index);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteStringValue("set", Set);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookNamedItem.cs b/src/Microsoft.Graph/Generated/Models/WorkbookNamedItem.cs
index c629dcc5e1d..dd4b1e434b8 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookNamedItem.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookNamedItem.cs
@@ -121,7 +121,7 @@ public bool? Visible
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookNamedItem CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookNamedItem();
         }
         /// <summary>
@@ -147,7 +147,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("comment", Comment);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookNamedItemCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookNamedItemCollectionResponse.cs
index b1b2ff1317a..578479c8465 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookNamedItemCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookNamedItemCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookNamedItemCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookNamedItemCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookNamedItemCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookNamedItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookOperation.cs b/src/Microsoft.Graph/Generated/Models/WorkbookOperation.cs
index acba8b98acc..ee170274426 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookOperation.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookOperation.cs
@@ -57,7 +57,7 @@ public string ResourceLocation
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookOperation CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookOperation();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookOperationError>("error", Error);
             writer.WriteStringValue("resourceLocation", ResourceLocation);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookOperationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookOperationCollectionResponse.cs
index f79eac78e32..b5f13c2cfff 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookOperationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookOperationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookOperationCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookOperationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookOperationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookOperation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookOperationError.cs b/src/Microsoft.Graph/Generated/Models/WorkbookOperationError.cs
index 809c501b690..f2de0041d9f 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookOperationError.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookOperationError.cs
@@ -100,7 +100,7 @@ public WorkbookOperationError()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkbookOperationError CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookOperationError();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("code", Code);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookOperationError>("innerError", InnerError);
             writer.WriteStringValue("message", Message);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookPivotTable.cs b/src/Microsoft.Graph/Generated/Models/WorkbookPivotTable.cs
index 2d973638e9d..43b6b3e853a 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookPivotTable.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookPivotTable.cs
@@ -51,7 +51,7 @@ public string Name
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookPivotTable CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookPivotTable();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("name", Name);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookWorksheet>("worksheet", Worksheet);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookPivotTableCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookPivotTableCollectionResponse.cs
index 183fbc5b3f7..fcae7c73a1b 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookPivotTableCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookPivotTableCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookPivotTableCollectionResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookPivotTableCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookPivotTableCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookPivotTable>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookRange.cs b/src/Microsoft.Graph/Generated/Models/WorkbookRange.cs
index 1c9a12c3b7b..4cab9248f01 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookRange.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookRange.cs
@@ -259,7 +259,7 @@ public UntypedNode ValueTypes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookRange CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookRange();
         }
         /// <summary>
@@ -298,7 +298,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("address", Address);
             writer.WriteStringValue("addressLocal", AddressLocal);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookRangeBorder.cs b/src/Microsoft.Graph/Generated/Models/WorkbookRangeBorder.cs
index bb8c98b13d8..7b05938f85d 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookRangeBorder.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookRangeBorder.cs
@@ -83,7 +83,7 @@ public string Weight
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookRangeBorder CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookRangeBorder();
         }
         /// <summary>
@@ -106,7 +106,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("color", Color);
             writer.WriteStringValue("sideIndex", SideIndex);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookRangeFill.cs b/src/Microsoft.Graph/Generated/Models/WorkbookRangeFill.cs
index c8bd0d6a675..1c43f07c8f7 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookRangeFill.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookRangeFill.cs
@@ -35,7 +35,7 @@ public string Color
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookRangeFill CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookRangeFill();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteStringValue("color", Color);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookRangeFont.cs b/src/Microsoft.Graph/Generated/Models/WorkbookRangeFont.cs
index caeeee02214..954ff8ee417 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookRangeFont.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookRangeFont.cs
@@ -85,7 +85,7 @@ public string Underline
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookRangeFont CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookRangeFont();
         }
         /// <summary>
@@ -110,7 +110,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteBoolValue("bold", Bold);
             writer.WriteStringValue("color", Color);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookRangeFormat.cs b/src/Microsoft.Graph/Generated/Models/WorkbookRangeFormat.cs
index 1d5ee684f33..bdd8ba8588a 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookRangeFormat.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookRangeFormat.cs
@@ -133,7 +133,7 @@ public bool? WrapText
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookRangeFormat CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookRangeFormat();
         }
         /// <summary>
@@ -161,7 +161,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookRangeBorder>("borders", Borders);
             writer.WriteDoubleValue("columnWidth", ColumnWidth);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookRangeSort.cs b/src/Microsoft.Graph/Generated/Models/WorkbookRangeSort.cs
index ad2bc3059c7..e86845bcc08 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookRangeSort.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookRangeSort.cs
@@ -19,7 +19,7 @@ public partial class WorkbookRangeSort : global::Microsoft.Graph.Models.Entity,
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookRangeSort CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookRangeSort();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookRangeView.cs b/src/Microsoft.Graph/Generated/Models/WorkbookRangeView.cs
index c8c2b93a758..961916f790e 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookRangeView.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookRangeView.cs
@@ -181,7 +181,7 @@ public UntypedNode ValueTypes
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookRangeView CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookRangeView();
         }
         /// <summary>
@@ -212,7 +212,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<UntypedNode>("cellAddresses", CellAddresses);
             writer.WriteIntValue("columnCount", ColumnCount);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookSessionInfo.cs b/src/Microsoft.Graph/Generated/Models/WorkbookSessionInfo.cs
index 3489b2805a1..a656a8a4b5e 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookSessionInfo.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookSessionInfo.cs
@@ -74,7 +74,7 @@ public WorkbookSessionInfo()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkbookSessionInfo CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookSessionInfo();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteBoolValue("persistChanges", PersistChanges);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookSortField.cs b/src/Microsoft.Graph/Generated/Models/WorkbookSortField.cs
index f6bf65bc01f..2640c3c91ea 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookSortField.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookSortField.cs
@@ -128,7 +128,7 @@ public WorkbookSortField()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkbookSortField CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookSortField();
         }
         /// <summary>
@@ -154,7 +154,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("ascending", Ascending);
             writer.WriteStringValue("color", Color);
             writer.WriteStringValue("dataOption", DataOption);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookTable.cs b/src/Microsoft.Graph/Generated/Models/WorkbookTable.cs
index ec4aaf47775..346b7653dcf 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookTable.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookTable.cs
@@ -173,7 +173,7 @@ public string Style
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookTable CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookTable();
         }
         /// <summary>
@@ -206,7 +206,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookTableColumn>("columns", Columns);
             writer.WriteBoolValue("highlightFirstColumn", HighlightFirstColumn);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookTableCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookTableCollectionResponse.cs
index 565fed7b789..1535a516f16 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookTableCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookTableCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookTableCollectionResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookTableCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookTableCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookTable>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookTableColumn.cs b/src/Microsoft.Graph/Generated/Models/WorkbookTableColumn.cs
index 7a55ec942cf..a2b72a8d49f 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookTableColumn.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookTableColumn.cs
@@ -73,7 +73,7 @@ public UntypedNode Values
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookTableColumn CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookTableColumn();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookFilter>("filter", Filter);
             writer.WriteIntValue("index", Index);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookTableColumnCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookTableColumnCollectionResponse.cs
index da5ceca8572..ddb2a494d24 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookTableColumnCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookTableColumnCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookTableColumnCollectionResponse : global::Microsoft.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookTableColumnCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookTableColumnCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookTableColumn>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookTableRow.cs b/src/Microsoft.Graph/Generated/Models/WorkbookTableRow.cs
index bdbcb2c6cbe..6754757af62 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookTableRow.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookTableRow.cs
@@ -41,7 +41,7 @@ public UntypedNode Values
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookTableRow CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookTableRow();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("index", Index);
             writer.WriteObjectValue<UntypedNode>("values", Values);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookTableRowCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookTableRowCollectionResponse.cs
index aef056d9dd5..a7086ed1347 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookTableRowCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookTableRowCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookTableRowCollectionResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookTableRowCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookTableRowCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookTableRow>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookTableSort.cs b/src/Microsoft.Graph/Generated/Models/WorkbookTableSort.cs
index 25bc93cc035..3bac66065ef 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookTableSort.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookTableSort.cs
@@ -57,7 +57,7 @@ public string Method
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookTableSort CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookTableSort();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookSortField>("fields", Fields);
             writer.WriteBoolValue("matchCase", MatchCase);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheet.cs b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheet.cs
index a6d63ab6468..6ad1e76d447 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheet.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheet.cs
@@ -137,7 +137,7 @@ public string Visibility
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookWorksheet CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookWorksheet();
         }
         /// <summary>
@@ -164,7 +164,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookChart>("charts", Charts);
             writer.WriteStringValue("name", Name);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetCollectionResponse.cs
index baaba048b7b..f5b3fd1c6ec 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkbookWorksheetCollectionResponse : global::Microsoft.Gra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookWorksheetCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookWorksheetCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkbookWorksheet>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtection.cs b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtection.cs
index 71dab14658b..c4e8c6d6a50 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtection.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtection.cs
@@ -41,7 +41,7 @@ public bool? Protected
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkbookWorksheetProtection CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookWorksheetProtection();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.WorkbookWorksheetProtectionOptions>("options", Options);
             writer.WriteBoolValue("protected", Protected);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtectionOptions.cs b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtectionOptions.cs
index bacc8a665b4..c7ed30d6d69 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtectionOptions.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkbookWorksheetProtectionOptions.cs
@@ -118,7 +118,7 @@ public WorkbookWorksheetProtectionOptions()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkbookWorksheetProtectionOptions CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkbookWorksheetProtectionOptions();
         }
         /// <summary>
@@ -149,7 +149,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("allowAutoFilter", AllowAutoFilter);
             writer.WriteBoolValue("allowDeleteColumns", AllowDeleteColumns);
             writer.WriteBoolValue("allowDeleteRows", AllowDeleteRows);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkforceIntegration.cs b/src/Microsoft.Graph/Generated/Models/WorkforceIntegration.cs
index 0f181db1c55..fb4569442de 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkforceIntegration.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkforceIntegration.cs
@@ -98,7 +98,7 @@ public WorkforceIntegration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkforceIntegration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkforceIntegration();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteIntValue("apiVersion", ApiVersion);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationCollectionResponse.cs b/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationCollectionResponse.cs
index 512b3d2198b..c8016f07e4b 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationCollectionResponse.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationCollectionResponse.cs
@@ -35,7 +35,7 @@ public partial class WorkforceIntegrationCollectionResponse : global::Microsoft.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkforceIntegrationCollectionResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkforceIntegrationCollectionResponse();
         }
         /// <summary>
@@ -55,7 +55,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.WorkforceIntegration>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationEncryption.cs b/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationEncryption.cs
index 4d17dbf3702..25734292f80 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationEncryption.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkforceIntegrationEncryption.cs
@@ -74,7 +74,7 @@ public WorkforceIntegrationEncryption()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkforceIntegrationEncryption CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkforceIntegrationEncryption();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.WorkforceIntegrationEncryptionProtocol>("protocol", Protocol);
             writer.WriteStringValue("secret", Secret);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkingHours.cs b/src/Microsoft.Graph/Generated/Models/WorkingHours.cs
index 26ded60ddaf..851c79a9a5b 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkingHours.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkingHours.cs
@@ -97,7 +97,7 @@ public WorkingHours()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.WorkingHours CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkingHours();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.DayOfWeekObject>("daysOfWeek", DaysOfWeek);
             writer.WriteTimeValue("endTime", EndTime);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/WorkingTimeSchedule.cs b/src/Microsoft.Graph/Generated/Models/WorkingTimeSchedule.cs
index 08540a69f87..eb6bde24662 100644
--- a/src/Microsoft.Graph/Generated/Models/WorkingTimeSchedule.cs
+++ b/src/Microsoft.Graph/Generated/Models/WorkingTimeSchedule.cs
@@ -19,7 +19,7 @@ public partial class WorkingTimeSchedule : global::Microsoft.Graph.Models.Entity
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.WorkingTimeSchedule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.WorkingTimeSchedule();
         }
         /// <summary>
@@ -38,7 +38,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationMethodConfiguration.cs b/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationMethodConfiguration.cs
index 838e4bd00f2..62a3df9c08c 100644
--- a/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationMethodConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationMethodConfiguration.cs
@@ -90,7 +90,7 @@ public X509CertificateAuthenticationMethodConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.X509CertificateAuthenticationMethodConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.X509CertificateAuthenticationMethodConfiguration();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.X509CertificateAuthenticationModeConfiguration>("authenticationModeConfiguration", AuthenticationModeConfiguration);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.X509CertificateUserBinding>("certificateUserBindings", CertificateUserBindings);
diff --git a/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationModeConfiguration.cs b/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationModeConfiguration.cs
index 45f6d286e04..ff71935a9ab 100644
--- a/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationModeConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/X509CertificateAuthenticationModeConfiguration.cs
@@ -80,7 +80,7 @@ public X509CertificateAuthenticationModeConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.X509CertificateAuthenticationModeConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.X509CertificateAuthenticationModeConfiguration();
         }
         /// <summary>
@@ -103,7 +103,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.X509CertificateRule>("rules", Rules);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.X509CertificateAuthenticationMode>("x509CertificateAuthenticationDefaultMode", X509CertificateAuthenticationDefaultMode);
diff --git a/src/Microsoft.Graph/Generated/Models/X509CertificateCRLValidationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/X509CertificateCRLValidationConfiguration.cs
index a1d8ee2108d..575ee803a60 100644
--- a/src/Microsoft.Graph/Generated/Models/X509CertificateCRLValidationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/X509CertificateCRLValidationConfiguration.cs
@@ -74,7 +74,7 @@ public X509CertificateCRLValidationConfiguration()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.X509CertificateCRLValidationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.X509CertificateCRLValidationConfiguration();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("exemptedCertificateAuthoritiesSubjectKeyIdentifiers", ExemptedCertificateAuthoritiesSubjectKeyIdentifiers);
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.X509CertificateCRLValidationConfigurationState>("state", State);
diff --git a/src/Microsoft.Graph/Generated/Models/X509CertificateCombinationConfiguration.cs b/src/Microsoft.Graph/Generated/Models/X509CertificateCombinationConfiguration.cs
index 8b6ca7adc53..3c7edf0680c 100644
--- a/src/Microsoft.Graph/Generated/Models/X509CertificateCombinationConfiguration.cs
+++ b/src/Microsoft.Graph/Generated/Models/X509CertificateCombinationConfiguration.cs
@@ -58,7 +58,7 @@ public X509CertificateCombinationConfiguration() : base()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Models.X509CertificateCombinationConfiguration CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.X509CertificateCombinationConfiguration();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("allowedIssuerSkis", AllowedIssuerSkis);
             writer.WriteCollectionOfPrimitiveValues<string>("allowedPolicyOIDs", AllowedPolicyOIDs);
diff --git a/src/Microsoft.Graph/Generated/Models/X509CertificateRule.cs b/src/Microsoft.Graph/Generated/Models/X509CertificateRule.cs
index 5432cbd8fa3..e72658fad7f 100644
--- a/src/Microsoft.Graph/Generated/Models/X509CertificateRule.cs
+++ b/src/Microsoft.Graph/Generated/Models/X509CertificateRule.cs
@@ -118,7 +118,7 @@ public X509CertificateRule()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.X509CertificateRule CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.X509CertificateRule();
         }
         /// <summary>
@@ -144,7 +144,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("identifier", Identifier);
             writer.WriteStringValue("issuerSubjectIdentifier", IssuerSubjectIdentifier);
             writer.WriteStringValue("@odata.type", OdataType);
diff --git a/src/Microsoft.Graph/Generated/Models/X509CertificateUserBinding.cs b/src/Microsoft.Graph/Generated/Models/X509CertificateUserBinding.cs
index e9bf27fb6f1..fcbd8f97d66 100644
--- a/src/Microsoft.Graph/Generated/Models/X509CertificateUserBinding.cs
+++ b/src/Microsoft.Graph/Generated/Models/X509CertificateUserBinding.cs
@@ -96,7 +96,7 @@ public X509CertificateUserBinding()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Models.X509CertificateUserBinding CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Models.X509CertificateUserBinding();
         }
         /// <summary>
@@ -120,7 +120,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("@odata.type", OdataType);
             writer.WriteIntValue("priority", Priority);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.X509CertificateAffinityLevel>("trustAffinityLevel", TrustAffinityLevel);
diff --git a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaGetResponse.cs
index f66ac6bf16b..389bc961a5b 100644
--- a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Oauth2PermissionGrants.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Oauth2PermissionGrants.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OAuth2PermissionGrant>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaResponse.cs
index dc2778eb2f9..fee160fb613 100644
--- a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Oauth2PermissionGra
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Oauth2PermissionGrants.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Oauth2PermissionGrants.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Item/OAuth2PermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Item/OAuth2PermissionGrantItemRequestBuilder.cs
index 7c3a7ed2f0e..8686c550979 100644
--- a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Item/OAuth2PermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Item/OAuth2PermissionGrantItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OAuth2PermissionGrant> PatchAsync(global::Microsoft.Graph.Models.OAuth2PermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OAuth2PermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Oauth2PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Oauth2PermissionGrantsRequestBuilder.cs
index 13eb1dfb882..b52d809e7d0 100644
--- a/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Oauth2PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Oauth2PermissionGrants/Oauth2PermissionGrantsRequestBuilder.cs
@@ -101,7 +101,7 @@ public Oauth2PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.OAuth2PermissionGrant> PostAsync(global::Microsoft.Graph.Models.OAuth2PermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OAuth2PermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Organization/Delta/DeltaGetResponse.cs
index 85baab7f164..9bd84c9d852 100644
--- a/src/Microsoft.Graph/Generated/Organization/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Organization/Delta/DeltaResponse.cs
index c3d91838101..9c9eda3b969 100644
--- a/src/Microsoft.Graph/Generated/Organization/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Organization.Delta.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 46c401585b0..866f1e80b46 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 31f5a972a7c..744a2a5cff8 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 885f2a3697f..eb9974bf550 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organ
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 97a6e85502f..ad75f768afc 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostRequestBody.cs
index d9d3ab4c22a..a0f74432caf 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostResponse.cs
index 3a4bf3b2e9f..3cc4bfd08fc 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsRequestBuilder.cs
index 7ab64d42c9f..4801cff8937 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Organization.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organ
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organization.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsResponse.cs
index 3f2407193b5..749b24c2477 100644
--- a/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.Organization.Get
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/BackgroundImage/BackgroundImageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/BackgroundImage/BackgroundImageRequestBuilder.cs
index cf5c8a257a3..9f7197884d2 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/BackgroundImage/BackgroundImageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/BackgroundImage/BackgroundImageRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/BannerLogo/BannerLogoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/BannerLogo/BannerLogoRequestBuilder.cs
index 7a0de9760de..927d2f64863 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/BannerLogo/BannerLogoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/BannerLogo/BannerLogoRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/BrandingRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/BrandingRequestBuilder.cs
index b033abae9bc..849769ba213 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/BrandingRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/BrandingRequestBuilder.cs
@@ -147,7 +147,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OrganizationalBranding> PatchAsync(global::Microsoft.Graph.Models.OrganizationalBranding body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -208,7 +208,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OrganizationalBranding body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/CustomCSS/CustomCSSRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/CustomCSS/CustomCSSRequestBuilder.cs
index 69fb525ae5d..11e5b0232bd 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/CustomCSS/CustomCSSRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/CustomCSS/CustomCSSRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Favicon/FaviconRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Favicon/FaviconRequestBuilder.cs
index 5df0b045ecf..f0718bf3e27 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Favicon/FaviconRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Favicon/FaviconRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/HeaderLogo/HeaderLogoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/HeaderLogo/HeaderLogoRequestBuilder.cs
index 6a83b466919..9e9b76cc2e7 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/HeaderLogo/HeaderLogoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/HeaderLogo/HeaderLogoRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BackgroundImage/BackgroundImageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BackgroundImage/BackgroundImageRequestBuilder.cs
index 1848dd549fa..2a62ed1eae4 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BackgroundImage/BackgroundImageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BackgroundImage/BackgroundImageRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BannerLogo/BannerLogoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BannerLogo/BannerLogoRequestBuilder.cs
index c5d1a24955a..8c697761227 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BannerLogo/BannerLogoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/BannerLogo/BannerLogoRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -161,7 +161,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/CustomCSS/CustomCSSRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/CustomCSS/CustomCSSRequestBuilder.cs
index 5ebf67bf78f..638a6b62313 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/CustomCSS/CustomCSSRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/CustomCSS/CustomCSSRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/Favicon/FaviconRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/Favicon/FaviconRequestBuilder.cs
index 0861280a832..65126a984a8 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/Favicon/FaviconRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/Favicon/FaviconRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/HeaderLogo/HeaderLogoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/HeaderLogo/HeaderLogoRequestBuilder.cs
index f081acc1d60..519dd2f17b6 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/HeaderLogo/HeaderLogoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/HeaderLogo/HeaderLogoRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/OrganizationalBrandingLocalizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/OrganizationalBrandingLocalizationItemRequestBuilder.cs
index ad79ff29fc6..a3d24a63398 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/OrganizationalBrandingLocalizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/OrganizationalBrandingLocalizationItemRequestBuilder.cs
@@ -141,7 +141,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OrganizationalBrandingLocalization> PatchAsync(global::Microsoft.Graph.Models.OrganizationalBrandingLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -202,7 +202,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OrganizationalBrandingLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogo/SquareLogoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogo/SquareLogoRequestBuilder.cs
index 46ad57c8d67..17392805a65 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogo/SquareLogoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogo/SquareLogoRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogoDark/SquareLogoDarkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogoDark/SquareLogoDarkRequestBuilder.cs
index 0ba34317421..0b62c642768 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogoDark/SquareLogoDarkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/Item/SquareLogoDark/SquareLogoDarkRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/LocalizationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/LocalizationsRequestBuilder.cs
index 17ff54ee5e0..31e7d8dc3f4 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/LocalizationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/Localizations/LocalizationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public LocalizationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OrganizationalBrandingLocalization> PostAsync(global::Microsoft.Graph.Models.OrganizationalBrandingLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OrganizationalBrandingLocalization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogo/SquareLogoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogo/SquareLogoRequestBuilder.cs
index d34f6e9fd1c..3f40c0c02ae 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogo/SquareLogoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogo/SquareLogoRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogoDark/SquareLogoDarkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogoDark/SquareLogoDarkRequestBuilder.cs
index 23b75a86f91..785373afb48 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogoDark/SquareLogoDarkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Branding/SquareLogoDark/SquareLogoDarkRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = ToPutRequestInformation(body, contentType, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(Stream body, string contentTyp
         public RequestInformation ToPutRequestInformation(Stream body, string contentType, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             if(string.IsNullOrEmpty(contentType)) throw new ArgumentNullException(nameof(contentType));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs
index db84e39a851..e28bfbc7403 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CertificateBasedAuthConfiguration/CertificateBasedAuthConfigurationRequestBuilder.cs
@@ -95,7 +95,7 @@ public CertificateBasedAuthConfigurationRequestBuilder(string rawUrl, IRequestAd
         public async Task<global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration> PostAsync(global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CertificateBasedAuthConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 720ed8d3776..1ae5f1c56e2 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index a9d87a2c303..c3368984df5 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 91b5f856833..fd00cedea95 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organ
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index 933b4b5a2ae..51adad42167 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Organiz
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index ce27665c4ac..9e5377ec8e9 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 21ac256a2c5..00ea959ef4f 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index ae920ac0356..f45b2faf224 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organ
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 9782bb1752b..a7c2adda7ea 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Organi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Extensions/ExtensionsRequestBuilder.cs
index 3b8b1d18d3d..d4da9887024 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 7c0cac87ba2..c8a17bf6c49 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index 698fd984793..4b374294b88 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 07f64c6c955..47440aa92cc 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 8527b507526..f02b31ca30d 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organ
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index c5c6f2ddb57..9174c7d6fd1 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Organizat
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 9ae9ab94b48..00e13c56bee 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 4519d0b106f..d8fc1d50c8c 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 98eab79621d..725e21490a0 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organ
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index f5a4301b63f..b6e4e4999b3 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Organiza
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/OrganizationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/Item/OrganizationItemRequestBuilder.cs
index 876f3745780..810536e4788 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/OrganizationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/OrganizationItemRequestBuilder.cs
@@ -135,8 +135,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.Organization>(requestInfo, global::Microsoft.Graph.Models.Organization.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Update the properties of the currently authenticated organization. In this case, organization is defined as a collection of exactly one record, and so its ID must be specified in the request.  The ID is also known as the tenantId of the organization.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/organization-update?view=graph-rest-1.0" />
+        /// Update the properties of a organization object.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-onboarding-organization-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.Organization"/></returns>
         /// <param name="body">The request body</param>
@@ -152,7 +152,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Organization> PatchAsync(global::Microsoft.Graph.Models.Organization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Update the properties of the currently authenticated organization. In this case, organization is defined as a collection of exactly one record, and so its ID must be specified in the request.  The ID is also known as the tenantId of the organization.
+        /// Update the properties of a organization object.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -213,7 +213,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Organization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityPostResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityPostResponse.cs
index 998fb5f93cc..1cfda2bd5ff 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityPostResponse.cs
@@ -42,7 +42,7 @@ public SetMobileDeviceManagementAuthorityPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.Item.SetMobileDeviceManagementAuthority.SetMobileDeviceManagementAuthorityPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.SetMobileDeviceManagementAuthority.SetMobileDeviceManagementAuthorityPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityResponse.cs b/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityResponse.cs
index 6da1007a0a6..240b90ac1b4 100644
--- a/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityResponse.cs
+++ b/src/Microsoft.Graph/Generated/Organization/Item/SetMobileDeviceManagementAuthority/SetMobileDeviceManagementAuthorityResponse.cs
@@ -20,7 +20,7 @@ public partial class SetMobileDeviceManagementAuthorityResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Organization.Item.SetMobileDeviceManagementAuthority.SetMobileDeviceManagementAuthorityResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.Item.SetMobileDeviceManagementAuthority.SetMobileDeviceManagementAuthorityResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Organization/OrganizationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/OrganizationRequestBuilder.cs
index cc8a37c53f4..718b3d9922c 100644
--- a/src/Microsoft.Graph/Generated/Organization/OrganizationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/OrganizationRequestBuilder.cs
@@ -118,7 +118,7 @@ public OrganizationRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Organization> PostAsync(global::Microsoft.Graph.Models.Organization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Organization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 9aecfc962f0..98a8093a98d 100644
--- a/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Organization.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Organization.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index d7ab7e23eda..9b7485ef46f 100644
--- a/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Organization/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Organization.ValidatePropert
         public async Task PostAsync(global::Microsoft.Graph.Organization.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organ
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Organization.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaGetResponse.cs
index f59193f6d12..4dbce6914f5 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaResponse.cs
index 3cf6c16cafb..07ee7580926 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.PermissionGrants.De
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index 97f974841c0..a81934e8086 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index 40ba6867671..7e6d68df641 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index d7631edc5cc..a1ccf7aa86c 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Permi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 830612387f4..0a8f8025510 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostRequestBody.cs
index bf010afb98e..c721299b318 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostResponse.cs
index 5e5d4dce727..bde8c3c95e7 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsRequestBuilder.cs
index be1d9d44e8e..4748d2db241 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Permi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsResponse.cs
index 4caa43eb477..2881dfcd0e0 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.PermissionGrants
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index d3f4d5943cd..c86cabb772f 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 37ed7fa0a51..65df014a87e 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 2d4ce841683..2cf4022dc6c 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Permi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index a5a8283ec0c..5cce6d43d78 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Permiss
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index 3d27c67619c..55cc37c4122 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index fa528dccf57..34c5dd1be01 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 27282bc8f76..89e5a38b475 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Permi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index 18345f813fd..5ec1936d083 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Permis
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index ac9779b9b38..40a74835eaa 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 68b0dd0f177..162980bb1b2 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 6aa233bb457..c4b8b5a39ac 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Permi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 99e20072b48..221b899025c 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Permissio
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index 3db2b810112..f4c851db7b8 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 32ea13fe637..0f11ddeeba3 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 3f2cbaebc93..a701b903d90 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Permi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index 01d6626ab36..408311d2c43 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Permissi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index bd85656d38b..6dee8a0c3cb 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/PermissionGrantsRequestBuilder.cs
index 9aad8d46137..ae709fc7445 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -111,7 +111,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index a6540d8e382..18075a1a7f0 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.PermissionGrants.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.PermissionGrants.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index a9d6859564a..8f41cabba0e 100644
--- a/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/PermissionGrants/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.PermissionGrants.ValidatePro
         public async Task PostAsync(global::Microsoft.Graph.PermissionGrants.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Permi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.PermissionGrants.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/Item/RoomItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/Item/RoomItemRequestBuilder.cs
index 0bb02b47d2f..c16ac25afee 100644
--- a/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/Item/RoomItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/Item/RoomItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Room> PatchAsync(global::Microsoft.Graph.Models.Room body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Room body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/RoomsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/RoomsRequestBuilder.cs
index a0911063612..da30cfdbf04 100644
--- a/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/RoomsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Places/Item/GraphRoomList/Rooms/RoomsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RoomsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Room> PostAsync(global::Microsoft.Graph.Models.Room body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Room body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Places/Item/PlaceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Places/Item/PlaceItemRequestBuilder.cs
index 71014322ef3..518726257a4 100644
--- a/src/Microsoft.Graph/Generated/Places/Item/PlaceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Places/Item/PlaceItemRequestBuilder.cs
@@ -86,7 +86,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Place> PatchAsync(global::Microsoft.Graph.Models.Place body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -128,7 +128,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Place body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/BucketsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/BucketsRequestBuilder.cs
index ea779370c30..b44c9706221 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/BucketsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/BucketsRequestBuilder.cs
@@ -95,7 +95,7 @@ public BucketsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PostAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/PlannerBucketItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/PlannerBucketItemRequestBuilder.cs
index 0b2ecebf7ce..53785675c51 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/PlannerBucketItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/PlannerBucketItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PatchAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 86621a41de2..4f65f8a7fcb 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index d982a8406a6..6b3e37358fe 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index 15e0f123cea..133258c0486 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 308831aef4c..4b3e5f2a521 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index cdbc3f4da01..c4913da7a7b 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/TasksRequestBuilder.cs
index 49bcee2716e..728f4a4605e 100644
--- a/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Buckets/Item/Tasks/TasksRequestBuilder.cs
@@ -94,7 +94,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/PlannerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/PlannerRequestBuilder.cs
index 0b9267620cd..c2751b78348 100644
--- a/src/Microsoft.Graph/Generated/Planner/PlannerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/PlannerRequestBuilder.cs
@@ -92,7 +92,7 @@ public PlannerRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.Planner> PatchAsync(global::Microsoft.Graph.Models.Planner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -134,7 +134,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Planner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
index dad54f0c1d1..a3367dfaee9 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
@@ -94,7 +94,7 @@ public BucketsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PostAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
index 696b69be5a3..f5b6ceeff58 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PatchAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index d295d8cca43..72797cdf570 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index d68787f0117..194ef3167e8 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index 3fe0e9cd9a3..9fd050ad0bf 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 119e37a0f2a..3af2916aecf 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 77fdb6ecbe1..ff07e5dcc6d 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
index 81e6fc3343d..6137ec99458 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
index e09fff83238..c3f514036de 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlanDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
index 44c40a8b7d0..cabb6d0969c 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PatchAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index eb832c1e5d7..d3d2f7e8cd5 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index f1973bf6555..4e85ff1c654 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index c2eb81752ab..8bdf03cbdc0 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 9769435041e..5fa57f928c3 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 250cad85c87..b2a87397574 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
index 0d62557467d..9d53a47fd09 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
@@ -94,7 +94,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Plans/PlansRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Plans/PlansRequestBuilder.cs
index ff913e10462..84082dd7ac6 100644
--- a/src/Microsoft.Graph/Generated/Planner/Plans/PlansRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Plans/PlansRequestBuilder.cs
@@ -95,7 +95,7 @@ public PlansRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PostAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 47ee5e5f426..1fa2178d784 100644
--- a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index 62ab045d2a9..acf030e4d0b 100644
--- a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
index af273b16903..77155cc2adc 100644
--- a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 5bab139efb8..66aa0391ee3 100644
--- a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -123,7 +123,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -184,7 +184,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index 462c4659906..bee060d168e 100644
--- a/src/Microsoft.Graph/Generated/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Planner/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Planner/Tasks/TasksRequestBuilder.cs
index aa680ac5355..b6302adadd0 100644
--- a/src/Microsoft.Graph/Generated/Planner/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Planner/Tasks/TasksRequestBuilder.cs
@@ -95,7 +95,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/ActivityBasedTimeoutPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/ActivityBasedTimeoutPoliciesRequestBuilder.cs
index d0098f57ce3..731d9d82994 100644
--- a/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/ActivityBasedTimeoutPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/ActivityBasedTimeoutPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ActivityBasedTimeoutPoliciesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy> PostAsync(global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/Item/ActivityBasedTimeoutPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/Item/ActivityBasedTimeoutPolicyItemRequestBuilder.cs
index 83b35450e8b..a16331406bf 100644
--- a/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/Item/ActivityBasedTimeoutPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/ActivityBasedTimeoutPolicies/Item/ActivityBasedTimeoutPolicyItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy> PatchAsync(global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ActivityBasedTimeoutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AdminConsentRequestPolicy/AdminConsentRequestPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AdminConsentRequestPolicy/AdminConsentRequestPolicyRequestBuilder.cs
index 55f147eeefd..43615e74e79 100644
--- a/src/Microsoft.Graph/Generated/Policies/AdminConsentRequestPolicy/AdminConsentRequestPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AdminConsentRequestPolicy/AdminConsentRequestPolicyRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AdminConsentRequestPolicy> PatchAsync(global::Microsoft.Graph.Models.AdminConsentRequestPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AdminConsentRequestPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/AppManagementPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/AppManagementPoliciesRequestBuilder.cs
index a17a90ad65e..a4db232ad57 100644
--- a/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/AppManagementPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/AppManagementPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppManagementPoliciesRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.AppManagementPolicy> PostAsync(global::Microsoft.Graph.Models.AppManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/Item/AppManagementPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/Item/AppManagementPolicyItemRequestBuilder.cs
index 1a6dd533f1c..30a2fe85afc 100644
--- a/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/Item/AppManagementPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AppManagementPolicies/Item/AppManagementPolicyItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppManagementPolicy> PatchAsync(global::Microsoft.Graph.Models.AppManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationFlowsPolicy/AuthenticationFlowsPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationFlowsPolicy/AuthenticationFlowsPolicyRequestBuilder.cs
index 0100be1b14a..b418e3c9f7b 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationFlowsPolicy/AuthenticationFlowsPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationFlowsPolicy/AuthenticationFlowsPolicyRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationFlowsPolicy> PatchAsync(global::Microsoft.Graph.Models.AuthenticationFlowsPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationFlowsPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
index ecaab4959ed..2c9aedb1e94 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/AuthenticationMethodConfigurationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AuthenticationMethodConfigurationsRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration> PostAsync(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
index c2f1856a6ae..39f000990c2 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodConfigurations/Item/AuthenticationMethodConfigurationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodConfiguration> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs
index d2ac7dbaefa..e3c74f2c06d 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationMethodsPolicy/AuthenticationMethodsPolicyRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodsPolicy> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethodsPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodsPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/AuthenticationStrengthPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/AuthenticationStrengthPoliciesRequestBuilder.cs
index b7b95af8262..3242e3c0382 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/AuthenticationStrengthPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/AuthenticationStrengthPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public AuthenticationStrengthPoliciesRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<global::Microsoft.Graph.Models.AuthenticationStrengthPolicy> PostAsync(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs
index 7cc2e732d96..399d34a9002 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/AuthenticationStrengthPolicyItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationStrengthPolicy> PatchAsync(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationStrengthPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs
index 51a707f7de2..855d8b10b3d 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/CombinationConfigurationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CombinationConfigurationsRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration> PostAsync(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs
index 86affbfde25..1bf6929cebc 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/CombinationConfigurations/Item/AuthenticationCombinationConfigurationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration> PatchAsync(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationCombinationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs
index a0c0d668769..9e45f277287 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsPostRequestBody.cs
@@ -53,7 +53,7 @@ public UpdateAllowedCombinationsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Policies.AuthenticationStrengthPolicies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Policies.AuthenticationStrengthPolicies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.AuthenticationMethodModes>("allowedCombinations", AllowedCombinations);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs
index 8104d089973..c7b678ab5ae 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthenticationStrengthPolicies/Item/UpdateAllowedCombinations/UpdateAllowedCombinationsRequestBuilder.cs
@@ -52,7 +52,7 @@ public UpdateAllowedCombinationsRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.UpdateAllowedCombinationsResult> PostAsync(global::Microsoft.Graph.Policies.AuthenticationStrengthPolicies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Polic
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Policies.AuthenticationStrengthPolicies.Item.UpdateAllowedCombinations.UpdateAllowedCombinationsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/AuthorizationPolicy/AuthorizationPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/AuthorizationPolicy/AuthorizationPolicyRequestBuilder.cs
index 86936c3e637..5bf8af92618 100644
--- a/src/Microsoft.Graph/Generated/Policies/AuthorizationPolicy/AuthorizationPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/AuthorizationPolicy/AuthorizationPolicyRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthorizationPolicy> PatchAsync(global::Microsoft.Graph.Models.AuthorizationPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthorizationPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/ClaimsMappingPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/ClaimsMappingPoliciesRequestBuilder.cs
index 3ae4f36438d..c9fd30fd729 100644
--- a/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/ClaimsMappingPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/ClaimsMappingPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ClaimsMappingPoliciesRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.ClaimsMappingPolicy> PostAsync(global::Microsoft.Graph.Models.ClaimsMappingPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ClaimsMappingPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/Item/ClaimsMappingPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/Item/ClaimsMappingPolicyItemRequestBuilder.cs
index c20f3aeeac9..663905f159d 100644
--- a/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/Item/ClaimsMappingPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/ClaimsMappingPolicies/Item/ClaimsMappingPolicyItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ClaimsMappingPolicy> PatchAsync(global::Microsoft.Graph.Models.ClaimsMappingPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ClaimsMappingPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/ConditionalAccessPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/ConditionalAccessPoliciesRequestBuilder.cs
index d6d368f68f6..640eba5e9cd 100644
--- a/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/ConditionalAccessPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/ConditionalAccessPoliciesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ConditionalAccessPoliciesRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.ConditionalAccessPolicy> PostAsync(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/Item/ConditionalAccessPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/Item/ConditionalAccessPolicyItemRequestBuilder.cs
index 37913b50a19..f981a28524f 100644
--- a/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/Item/ConditionalAccessPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/ConditionalAccessPolicies/Item/ConditionalAccessPolicyItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConditionalAccessPolicy> PatchAsync(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConditionalAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/CrossTenantAccessPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/CrossTenantAccessPolicyRequestBuilder.cs
index e2419f25974..e267f1c76aa 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/CrossTenantAccessPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/CrossTenantAccessPolicyRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CrossTenantAccessPolicy> PatchAsync(global::Microsoft.Graph.Models.CrossTenantAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CrossTenantAccessPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Default/DefaultRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Default/DefaultRequestBuilder.cs
index 2f097fee351..9afef75340c 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Default/DefaultRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Default/DefaultRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationDefault> PatchAsync(global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationDefault body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationDefault body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/CrossTenantAccessPolicyConfigurationPartnerTenantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/CrossTenantAccessPolicyConfigurationPartnerTenantItemRequestBuilder.cs
index 411b5eb9bce..aae4d469e46 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/CrossTenantAccessPolicyConfigurationPartnerTenantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/CrossTenantAccessPolicyConfigurationPartnerTenantItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner> PatchAsync(global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/IdentitySynchronization/IdentitySynchronizationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/IdentitySynchronization/IdentitySynchronizationRequestBuilder.cs
index 2c95bdf9416..8d838d40517 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/IdentitySynchronization/IdentitySynchronizationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/Item/IdentitySynchronization/IdentitySynchronizationRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CrossTenantIdentitySyncPolicyPartner> PutAsync(global::Microsoft.Graph.Models.CrossTenantIdentitySyncPolicyPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.CrossTenantIdentitySyncPolicyPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/PartnersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/PartnersRequestBuilder.cs
index bd319fa1189..d03f5df9fa0 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/PartnersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Partners/PartnersRequestBuilder.cs
@@ -95,7 +95,7 @@ public PartnersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner> PostAsync(global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CrossTenantAccessPolicyConfigurationPartner body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationIdentitySynchronization/MultiTenantOrganizationIdentitySynchronizationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationIdentitySynchronization/MultiTenantOrganizationIdentitySynchronizationRequestBuilder.cs
index 7abf9251653..1e232c7f0ee 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationIdentitySynchronization/MultiTenantOrganizationIdentitySynchronizationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationIdentitySynchronization/MultiTenantOrganizationIdentitySynchronizationRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MultiTenantOrganizationIdentitySyncPolicyTemplate> PatchAsync(global::Microsoft.Graph.Models.MultiTenantOrganizationIdentitySyncPolicyTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MultiTenantOrganizationIdentitySyncPolicyTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationPartnerConfiguration/MultiTenantOrganizationPartnerConfigurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationPartnerConfiguration/MultiTenantOrganizationPartnerConfigurationRequestBuilder.cs
index aa17c2e7666..6613fe97744 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationPartnerConfiguration/MultiTenantOrganizationPartnerConfigurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/MultiTenantOrganizationPartnerConfiguration/MultiTenantOrganizationPartnerConfigurationRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MultiTenantOrganizationPartnerConfigurationTemplate> PatchAsync(global::Microsoft.Graph.Models.MultiTenantOrganizationPartnerConfigurationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MultiTenantOrganizationPartnerConfigurationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/TemplatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/TemplatesRequestBuilder.cs
index d106a2e581f..0e285c8d5aa 100644
--- a/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/TemplatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/CrossTenantAccessPolicy/Templates/TemplatesRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PolicyTemplate> PatchAsync(global::Microsoft.Graph.Models.PolicyTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PolicyTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/DefaultAppManagementPolicy/DefaultAppManagementPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/DefaultAppManagementPolicy/DefaultAppManagementPolicyRequestBuilder.cs
index b39535d1011..95d63eddd08 100644
--- a/src/Microsoft.Graph/Generated/Policies/DefaultAppManagementPolicy/DefaultAppManagementPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/DefaultAppManagementPolicy/DefaultAppManagementPolicyRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TenantAppManagementPolicy> PatchAsync(global::Microsoft.Graph.Models.TenantAppManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TenantAppManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/FeatureRolloutPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/FeatureRolloutPoliciesRequestBuilder.cs
index be21cd883c8..e61d0e5aeb4 100644
--- a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/FeatureRolloutPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/FeatureRolloutPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public FeatureRolloutPoliciesRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.FeatureRolloutPolicy> PostAsync(global::Microsoft.Graph.Models.FeatureRolloutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.FeatureRolloutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/AppliesToRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/AppliesToRequestBuilder.cs
index aad538a93be..540727240f6 100644
--- a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/AppliesToRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/AppliesToRequestBuilder.cs
@@ -100,7 +100,7 @@ public AppliesToRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.DirectoryObject> PostAsync(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryObject body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/Ref/RefRequestBuilder.cs
index 8fb47243a1a..efd56436ff6 100644
--- a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/AppliesTo/Ref/RefRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/policies/featureRolloutPolicies/{featureRolloutPolicy%2Did}/appliesTo/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/FeatureRolloutPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/FeatureRolloutPolicyItemRequestBuilder.cs
index 0c5a9fd61fe..8ea805b2900 100644
--- a/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/FeatureRolloutPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/FeatureRolloutPolicies/Item/FeatureRolloutPolicyItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FeatureRolloutPolicy> PatchAsync(global::Microsoft.Graph.Models.FeatureRolloutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FeatureRolloutPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/HomeRealmDiscoveryPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/HomeRealmDiscoveryPoliciesRequestBuilder.cs
index 365c8046289..1bc9d2ae263 100644
--- a/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/HomeRealmDiscoveryPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/HomeRealmDiscoveryPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public HomeRealmDiscoveryPoliciesRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy> PostAsync(global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/Item/HomeRealmDiscoveryPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/Item/HomeRealmDiscoveryPolicyItemRequestBuilder.cs
index 0fc21240c8b..b0c01a695e7 100644
--- a/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/Item/HomeRealmDiscoveryPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/HomeRealmDiscoveryPolicies/Item/HomeRealmDiscoveryPolicyItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy> PatchAsync(global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.HomeRealmDiscoveryPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/IdentitySecurityDefaultsEnforcementPolicy/IdentitySecurityDefaultsEnforcementPolicyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/IdentitySecurityDefaultsEnforcementPolicy/IdentitySecurityDefaultsEnforcementPolicyRequestBuilder.cs
index f9807c0f4da..12a4bc664c4 100644
--- a/src/Microsoft.Graph/Generated/Policies/IdentitySecurityDefaultsEnforcementPolicy/IdentitySecurityDefaultsEnforcementPolicyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/IdentitySecurityDefaultsEnforcementPolicy/IdentitySecurityDefaultsEnforcementPolicyRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.IdentitySecurityDefaultsEnforcementPolicy> PatchAsync(global::Microsoft.Graph.Models.IdentitySecurityDefaultsEnforcementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.IdentitySecurityDefaultsEnforcementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/ExcludesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/ExcludesRequestBuilder.cs
index f9ebac425bb..2fe64cc9bd7 100644
--- a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/ExcludesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/ExcludesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ExcludesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.PermissionGrantConditionSet> PostAsync(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/Item/PermissionGrantConditionSetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/Item/PermissionGrantConditionSetItemRequestBuilder.cs
index 2e792a4ffa9..259fc86724d 100644
--- a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/Item/PermissionGrantConditionSetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Excludes/Item/PermissionGrantConditionSetItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PermissionGrantConditionSet> PatchAsync(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/IncludesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/IncludesRequestBuilder.cs
index df1d4603a36..6e5b4b29f14 100644
--- a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/IncludesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/IncludesRequestBuilder.cs
@@ -95,7 +95,7 @@ public IncludesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.PermissionGrantConditionSet> PostAsync(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/Item/PermissionGrantConditionSetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/Item/PermissionGrantConditionSetItemRequestBuilder.cs
index 74db90a3844..bdaaa5b1162 100644
--- a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/Item/PermissionGrantConditionSetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/Includes/Item/PermissionGrantConditionSetItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PermissionGrantConditionSet> PatchAsync(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PermissionGrantConditionSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/PermissionGrantPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/PermissionGrantPolicyItemRequestBuilder.cs
index 900a7a81cbc..92a8a3ee472 100644
--- a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/PermissionGrantPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/Item/PermissionGrantPolicyItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PermissionGrantPolicy> PatchAsync(global::Microsoft.Graph.Models.PermissionGrantPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PermissionGrantPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/PermissionGrantPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/PermissionGrantPoliciesRequestBuilder.cs
index 655f551fed3..7d7b57809d9 100644
--- a/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/PermissionGrantPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/PermissionGrantPolicies/PermissionGrantPoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public PermissionGrantPoliciesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.PermissionGrantPolicy> PostAsync(global::Microsoft.Graph.Models.PermissionGrantPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PermissionGrantPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/PoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/PoliciesRequestBuilder.cs
index 615887bb9a0..d6caaa4d129 100644
--- a/src/Microsoft.Graph/Generated/Policies/PoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/PoliciesRequestBuilder.cs
@@ -194,7 +194,7 @@ public PoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.PolicyRoot> PatchAsync(global::Microsoft.Graph.Models.PolicyRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -236,7 +236,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PolicyRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/EffectiveRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/EffectiveRulesRequestBuilder.cs
index f7328916c92..e224266d9d9 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/EffectiveRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/EffectiveRulesRequestBuilder.cs
@@ -93,7 +93,7 @@ public EffectiveRulesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs
index cad0b0fd525..954d293c9de 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/EffectiveRules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs
index 552df3b6e23..f10939c2f2e 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/Item/UnifiedRoleManagementPolicyRuleItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/RulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/RulesRequestBuilder.cs
index fb4237b3dff..826b52e8f43 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/RulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/Rules/RulesRequestBuilder.cs
@@ -94,7 +94,7 @@ public RulesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/UnifiedRoleManagementPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/UnifiedRoleManagementPolicyItemRequestBuilder.cs
index 84c294dfee1..408b498530c 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/UnifiedRoleManagementPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/Item/UnifiedRoleManagementPolicyItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/RoleManagementPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/RoleManagementPoliciesRequestBuilder.cs
index be41dd6e66f..aea04b84fe7 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/RoleManagementPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicies/RoleManagementPoliciesRequestBuilder.cs
@@ -94,7 +94,7 @@ public RoleManagementPoliciesRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/Item/UnifiedRoleManagementPolicyAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/Item/UnifiedRoleManagementPolicyAssignmentItemRequestBuilder.cs
index 5b21001a026..827199f5063 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/Item/UnifiedRoleManagementPolicyAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/Item/UnifiedRoleManagementPolicyAssignmentItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/RoleManagementPolicyAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/RoleManagementPolicyAssignmentsRequestBuilder.cs
index a20723d5245..fcc7657eef1 100644
--- a/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/RoleManagementPolicyAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/RoleManagementPolicyAssignments/RoleManagementPolicyAssignmentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public RoleManagementPolicyAssignmentsRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleManagementPolicyAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/Item/TokenIssuancePolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/Item/TokenIssuancePolicyItemRequestBuilder.cs
index d2947ec7de7..9e32031257f 100644
--- a/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/Item/TokenIssuancePolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/Item/TokenIssuancePolicyItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TokenIssuancePolicy> PatchAsync(global::Microsoft.Graph.Models.TokenIssuancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TokenIssuancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/TokenIssuancePoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/TokenIssuancePoliciesRequestBuilder.cs
index b77272d47aa..d3cae7db74b 100644
--- a/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/TokenIssuancePoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/TokenIssuancePolicies/TokenIssuancePoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public TokenIssuancePoliciesRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.TokenIssuancePolicy> PostAsync(global::Microsoft.Graph.Models.TokenIssuancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TokenIssuancePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/Item/TokenLifetimePolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/Item/TokenLifetimePolicyItemRequestBuilder.cs
index 3ed1f203c7f..dece6fe65c9 100644
--- a/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/Item/TokenLifetimePolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/Item/TokenLifetimePolicyItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TokenLifetimePolicy> PatchAsync(global::Microsoft.Graph.Models.TokenLifetimePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TokenLifetimePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/TokenLifetimePoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/TokenLifetimePoliciesRequestBuilder.cs
index 9ac4eceb5f9..379a606a696 100644
--- a/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/TokenLifetimePoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Policies/TokenLifetimePolicies/TokenLifetimePoliciesRequestBuilder.cs
@@ -95,7 +95,7 @@ public TokenLifetimePoliciesRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.TokenLifetimePolicy> PostAsync(global::Microsoft.Graph.Models.TokenLifetimePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TokenLifetimePolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Connectors/ConnectorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Connectors/ConnectorsRequestBuilder.cs
index d6ab86700e2..f7bbf15bc8c 100644
--- a/src/Microsoft.Graph/Generated/Print/Connectors/ConnectorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Connectors/ConnectorsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ConnectorsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.PrintConnector> PostAsync(global::Microsoft.Graph.Models.PrintConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Connectors/Item/PrintConnectorItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Connectors/Item/PrintConnectorItemRequestBuilder.cs
index 6ccc72bfc61..212d8ee3fcc 100644
--- a/src/Microsoft.Graph/Generated/Print/Connectors/Item/PrintConnectorItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Connectors/Item/PrintConnectorItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintConnector> PatchAsync(global::Microsoft.Graph.Models.PrintConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintConnector body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Operations/Item/PrintOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Operations/Item/PrintOperationItemRequestBuilder.cs
index bf7d7bf794b..b1686369e01 100644
--- a/src/Microsoft.Graph/Generated/Print/Operations/Item/PrintOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Operations/Item/PrintOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintOperation> PatchAsync(global::Microsoft.Graph.Models.PrintOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Operations/OperationsRequestBuilder.cs
index b548a236025..4f0591a0432 100644
--- a/src/Microsoft.Graph/Generated/Print/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.PrintOperation> PostAsync(global::Microsoft.Graph.Models.PrintOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/PrintRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/PrintRequestBuilder.cs
index b671221d936..1f7e37799e9 100644
--- a/src/Microsoft.Graph/Generated/Print/PrintRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/PrintRequestBuilder.cs
@@ -110,7 +110,7 @@ public PrintRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Print> PatchAsync(global::Microsoft.Graph.Models.Print body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Print body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Create/CreatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Print/Printers/Create/CreatePostRequestBody.cs
index 2f7c8972a6c..1d443b3e272 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Create/CreatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Create/CreatePostRequestBody.cs
@@ -139,7 +139,7 @@ public CreatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Print.Printers.Create.CreatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Print.Printers.Create.CreatePostRequestBody();
         }
         /// <summary>
@@ -165,7 +165,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintCertificateSigningRequest>("certificateSigningRequest", CertificateSigningRequest);
             writer.WriteStringValue("connectorId", ConnectorId);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Create/CreateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Create/CreateRequestBuilder.cs
index fb0d63c7452..96f2125c3fa 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Create/CreateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Create/CreateRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Print.Printers.Create.Create
         public async Task PostAsync(global::Microsoft.Graph.Print.Printers.Create.CreatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print.Printers.Create.CreatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortPostRequestBody.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortPostRequestBody.cs
index 64f44299c86..c7bb6752c32 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortPostRequestBody.cs
@@ -52,7 +52,7 @@ public AbortPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Abort.AbortPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Abort.AbortPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reason", Reason);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortRequestBuilder.cs
index e252aae7155..fc7ee249fd3 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Abort/AbortRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Print.Printers.Item.Jobs.Ite
         public async Task PostAsync(global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Abort.AbortPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Abort.AbortPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs
index 3371df33a13..279fb8015e5 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public DocumentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.PrintDocument> PostAsync(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index b2f0c509a24..8bf4fa0cf18 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintDocumentUploadProperties>("properties", Properties);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index b648e060a9f..7434efa8d81 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs
index c13a854228b..41f97e432c8 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintDocument> PatchAsync(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs
index 6a0ec46866d..0c275827de7 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/PrintJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/PrintJobItemRequestBuilder.cs
index d70abcaabbd..bed12238625 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/PrintJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/PrintJobItemRequestBuilder.cs
@@ -134,7 +134,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintJob> PatchAsync(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -195,7 +195,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs
index e885a6142bc..4f8f811fe20 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs
@@ -69,7 +69,7 @@ public RedirectPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Redirect.RedirectPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Redirect.RedirectPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintJobConfiguration>("configuration", Configuration);
             writer.WriteStringValue("destinationPrinterId", DestinationPrinterId);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs
index c9faa5e8045..8d6b15e5e59 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs
@@ -52,7 +52,7 @@ public RedirectRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.PrintJob> PostAsync(global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Redirect.RedirectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print.Printers.Item.Jobs.Item.Redirect.RedirectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
index a7d431c9db3..838c1f6c4ab 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintTask> PatchAsync(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs
index 7e43799f3da..81adb56afd3 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PrintTask> PostAsync(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/JobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/JobsRequestBuilder.cs
index 34394b11d9a..2864af69437 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/JobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/Jobs/JobsRequestBuilder.cs
@@ -95,7 +95,7 @@ public JobsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.PrintJob> PostAsync(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/PrinterItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/PrinterItemRequestBuilder.cs
index fb35c705f98..9059bef0c2e 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/PrinterItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/PrinterItemRequestBuilder.cs
@@ -129,7 +129,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Printer> PatchAsync(global::Microsoft.Graph.Models.Printer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -190,7 +190,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Printer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/Item/PrintTaskTriggerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/Item/PrintTaskTriggerItemRequestBuilder.cs
index 6f9b53fa08c..6bfdac725e3 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/Item/PrintTaskTriggerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/Item/PrintTaskTriggerItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintTaskTrigger> PatchAsync(global::Microsoft.Graph.Models.PrintTaskTrigger body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintTaskTrigger body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/TaskTriggersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/TaskTriggersRequestBuilder.cs
index 1f51f56d4c3..b0e35b2f95e 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/TaskTriggersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/Item/TaskTriggers/TaskTriggersRequestBuilder.cs
@@ -95,7 +95,7 @@ public TaskTriggersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.PrintTaskTrigger> PostAsync(global::Microsoft.Graph.Models.PrintTaskTrigger body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintTaskTrigger body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Printers/PrintersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Printers/PrintersRequestBuilder.cs
index 5a2e0debdf6..b8064ef35ea 100644
--- a/src/Microsoft.Graph/Generated/Print/Printers/PrintersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Printers/PrintersRequestBuilder.cs
@@ -100,7 +100,7 @@ public PrintersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Printer> PostAsync(global::Microsoft.Graph.Models.Printer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Printer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/EndpointsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/EndpointsRequestBuilder.cs
index e3988fc4839..f94b0bb23eb 100644
--- a/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/EndpointsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/EndpointsRequestBuilder.cs
@@ -94,7 +94,7 @@ public EndpointsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.PrintServiceEndpoint> PostAsync(global::Microsoft.Graph.Models.PrintServiceEndpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintServiceEndpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/Item/PrintServiceEndpointItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/Item/PrintServiceEndpointItemRequestBuilder.cs
index 2c82dc6e45f..52f19d0c40e 100644
--- a/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/Item/PrintServiceEndpointItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Services/Item/Endpoints/Item/PrintServiceEndpointItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintServiceEndpoint> PatchAsync(global::Microsoft.Graph.Models.PrintServiceEndpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintServiceEndpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Services/Item/PrintServiceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Services/Item/PrintServiceItemRequestBuilder.cs
index b4df034be99..89283349397 100644
--- a/src/Microsoft.Graph/Generated/Print/Services/Item/PrintServiceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Services/Item/PrintServiceItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintService> PatchAsync(global::Microsoft.Graph.Models.PrintService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Services/ServicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Services/ServicesRequestBuilder.cs
index 390e3988fdc..416a1ef25d5 100644
--- a/src/Microsoft.Graph/Generated/Print/Services/ServicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Services/ServicesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ServicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.PrintService> PostAsync(global::Microsoft.Graph.Models.PrintService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedGroups/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedGroups/Ref/RefRequestBuilder.cs
index 464bb74a1fd..45f0ab64928 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedGroups/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedGroups/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/print/shares/{printerShare%2Did}/allowedGroups/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 22873287658..545afee472b 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Ref/RefRequestBuilder.cs
index 59f4152f2b4..06bb857e03c 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/AllowedUsers/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/print/shares/{printerShare%2Did}/allowedUsers/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortPostRequestBody.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortPostRequestBody.cs
index b4b357d05e8..adb184c15eb 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortPostRequestBody.cs
@@ -52,7 +52,7 @@ public AbortPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Abort.AbortPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Abort.AbortPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reason", Reason);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortRequestBuilder.cs
index 305c2cb9dde..3194c8c3498 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Abort/AbortRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.
         public async Task PostAsync(global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Abort.AbortPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Abort.AbortPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs
index 75e41521b4a..eda8a7d6a24 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/DocumentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DocumentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.PrintDocument> PostAsync(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index b02d24a30e2..ff9378ec362 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintDocumentUploadProperties>("properties", Properties);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 8059d1894d9..07927e7d746 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Documents.Item.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs
index 4724759f1c3..563ec988734 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/PrintDocumentItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintDocument> PatchAsync(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintDocument body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs
index 3957e2df53f..7c61fee3a67 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Documents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/PrintJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/PrintJobItemRequestBuilder.cs
index 6597ef5b345..99df19a5f39 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/PrintJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/PrintJobItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintJob> PatchAsync(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs
index 937d8230329..e5b1b284c43 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectPostRequestBody.cs
@@ -69,7 +69,7 @@ public RedirectPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Redirect.RedirectPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Redirect.RedirectPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PrintJobConfiguration>("configuration", Configuration);
             writer.WriteStringValue("destinationPrinterId", DestinationPrinterId);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs
index 2a62a921331..c0514c6c18e 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Redirect/RedirectRequestBuilder.cs
@@ -52,7 +52,7 @@ public RedirectRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.PrintJob> PostAsync(global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Redirect.RedirectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Print.Shares.Item.Jobs.Item.Redirect.RedirectPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
index 41489c7cb03..f242819f96a 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintTask> PatchAsync(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs
index 00ba3833d41..535fa84fdac 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PrintTask> PostAsync(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/JobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/JobsRequestBuilder.cs
index 9607f2ba0eb..eae7d3f157d 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/JobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/Jobs/JobsRequestBuilder.cs
@@ -95,7 +95,7 @@ public JobsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.PrintJob> PostAsync(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/Item/PrinterShareItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/Item/PrinterShareItemRequestBuilder.cs
index eab57eb950a..bc5c370f76e 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/Item/PrinterShareItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/Item/PrinterShareItemRequestBuilder.cs
@@ -123,7 +123,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrinterShare> PatchAsync(global::Microsoft.Graph.Models.PrinterShare body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -184,7 +184,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrinterShare body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/Shares/SharesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/Shares/SharesRequestBuilder.cs
index 1852637fc8f..062d7685506 100644
--- a/src/Microsoft.Graph/Generated/Print/Shares/SharesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/Shares/SharesRequestBuilder.cs
@@ -95,7 +95,7 @@ public SharesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.PrinterShare> PostAsync(global::Microsoft.Graph.Models.PrinterShare body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrinterShare body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/PrintTaskDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/PrintTaskDefinitionItemRequestBuilder.cs
index b993b9ba1cb..f5eb5e1a5e2 100644
--- a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/PrintTaskDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/PrintTaskDefinitionItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintTaskDefinition> PatchAsync(global::Microsoft.Graph.Models.PrintTaskDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintTaskDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
index 3d002187645..75174a0e618 100644
--- a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/Item/PrintTaskItemRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintTask> PatchAsync(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/TasksRequestBuilder.cs
index 5c0098c667d..f129503606f 100644
--- a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/Item/Tasks/TasksRequestBuilder.cs
@@ -94,7 +94,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PrintTask> PostAsync(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/TaskDefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/TaskDefinitionsRequestBuilder.cs
index 8052ab17e3b..03cde20e42c 100644
--- a/src/Microsoft.Graph/Generated/Print/TaskDefinitions/TaskDefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Print/TaskDefinitions/TaskDefinitionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TaskDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.PrintTaskDefinition> PostAsync(global::Microsoft.Graph.Models.PrintTaskDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintTaskDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Privacy/PrivacyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Privacy/PrivacyRequestBuilder.cs
index dcbbd454326..d393bf26eb0 100644
--- a/src/Microsoft.Graph/Generated/Privacy/PrivacyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Privacy/PrivacyRequestBuilder.cs
@@ -80,7 +80,7 @@ public PrivacyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.Privacy> PatchAsync(global::Microsoft.Graph.Models.Privacy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Privacy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index e78d2e82bc2..478996ee6f4 100644
--- a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -76,7 +76,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -120,7 +120,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index bbcc52b0f1c..e231e3c9576 100644
--- a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -76,7 +76,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -120,7 +120,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs
index fa147e4b662..ee9b9746ac0 100644
--- a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthoredNote> PatchAsync(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs
index 5b9411ec534..6ad60cd3f87 100644
--- a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs
@@ -99,7 +99,7 @@ public NotesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AuthoredNote> PostAsync(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs
index 9e840af44b4..7755be784e5 100644
--- a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs
@@ -167,7 +167,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SubjectRightsRequest> PatchAsync(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -231,7 +231,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs
index 3395caa9bbe..5461bfa3c46 100644
--- a/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Privacy/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs
@@ -99,7 +99,7 @@ public SubjectRightsRequestsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.SubjectRightsRequest> PostAsync(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/AuthenticationMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/AuthenticationMethodsRequestBuilder.cs
index d51c1e23fed..8202290006f 100644
--- a/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/AuthenticationMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/AuthenticationMethodsRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethodsRoot> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethodsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethodsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/Item/UserRegistrationDetailsItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/Item/UserRegistrationDetailsItemRequestBuilder.cs
index a5dbe3d86ad..db002514842 100644
--- a/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/Item/UserRegistrationDetailsItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/Item/UserRegistrationDetailsItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserRegistrationDetails> PatchAsync(global::Microsoft.Graph.Models.UserRegistrationDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserRegistrationDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/UserRegistrationDetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/UserRegistrationDetailsRequestBuilder.cs
index 45db16a2187..7d4ac6bd9cd 100644
--- a/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/UserRegistrationDetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/AuthenticationMethods/UserRegistrationDetails/UserRegistrationDetailsRequestBuilder.cs
@@ -94,7 +94,7 @@ public UserRegistrationDetailsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.UserRegistrationDetails> PostAsync(global::Microsoft.Graph.Models.UserRegistrationDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserRegistrationDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/DailyPrintUsageByPrinterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/DailyPrintUsageByPrinterRequestBuilder.cs
index ecc3960c4d9..71e71396bf9 100644
--- a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/DailyPrintUsageByPrinterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/DailyPrintUsageByPrinterRequestBuilder.cs
@@ -94,7 +94,7 @@ public DailyPrintUsageByPrinterRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.PrintUsageByPrinter> PostAsync(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs
index e1970deeb99..4827b3b0c17 100644
--- a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintUsageByPrinter> PatchAsync(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/DailyPrintUsageByUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/DailyPrintUsageByUserRequestBuilder.cs
index 627ba46506f..e73aa029a4b 100644
--- a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/DailyPrintUsageByUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/DailyPrintUsageByUserRequestBuilder.cs
@@ -94,7 +94,7 @@ public DailyPrintUsageByUserRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.PrintUsageByUser> PostAsync(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs
index 15bb5cc9a8e..b7c326e1b23 100644
--- a/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/DailyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintUsageByUser> PatchAsync(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index 5d39e6b09bd..17e4a9f108b 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ArchivedPrintJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeResponse.cs
index b87586ba0ac..6845af2b8eb 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime/GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEn
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index 0736c581cc5..e73e634efa3 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ArchivedPrintJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeResponse.cs
index 40c0b11cb6d..9cd66907260 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime/GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodGetResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodGetResponse.cs
index 38123dd9f08..3b59c5e5249 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetRelyingPartyDetailedSummaryWithPeriodGetResponse : globa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetRelyingPartyDetailedSummaryWithPeriod.GetRelyingPartyDetailedSummaryWithPeriodGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetRelyingPartyDetailedSummaryWithPeriod.GetRelyingPartyDetailedSummaryWithPeriodGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RelyingPartyDetailedSummary>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodResponse.cs
index d59d517a9cf..878b2177148 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetRelyingPartyDetailedSummaryWithPeriod/GetRelyingPartyDetailedSummaryWithPeriodResponse.cs
@@ -20,7 +20,7 @@ public partial class GetRelyingPartyDetailedSummaryWithPeriodResponse : global::
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetRelyingPartyDetailedSummaryWithPeriod.GetRelyingPartyDetailedSummaryWithPeriodResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetRelyingPartyDetailedSummaryWithPeriod.GetRelyingPartyDetailedSummaryWithPeriodResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index 6c247885215..f09ad16bd88 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndD
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ArchivedPrintJob>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeResponse.cs
index cbde85113a5..1ea0c3b7d13 100644
--- a/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime/GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndD
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs
index d7d8be0f19b..1a9932f8862 100644
--- a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/Item/PrintUsageByPrinterItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintUsageByPrinter> PatchAsync(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/MonthlyPrintUsageByPrinterRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/MonthlyPrintUsageByPrinterRequestBuilder.cs
index 9f118f4abe5..311ecb7c815 100644
--- a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/MonthlyPrintUsageByPrinterRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByPrinter/MonthlyPrintUsageByPrinterRequestBuilder.cs
@@ -94,7 +94,7 @@ public MonthlyPrintUsageByPrinterRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.PrintUsageByPrinter> PostAsync(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintUsageByPrinter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs
index b43d2201e0d..e9dc8d79d36 100644
--- a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/Item/PrintUsageByUserItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PrintUsageByUser> PatchAsync(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/MonthlyPrintUsageByUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/MonthlyPrintUsageByUserRequestBuilder.cs
index 63693bdb8ed..cd0547c0405 100644
--- a/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/MonthlyPrintUsageByUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/MonthlyPrintUsageByUser/MonthlyPrintUsageByUserRequestBuilder.cs
@@ -94,7 +94,7 @@ public MonthlyPrintUsageByUserRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.PrintUsageByUser> PostAsync(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PrintUsageByUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/BillingRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/BillingRequestBuilder.cs
index ae3f2718c18..0ec6f6e380c 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/BillingRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/BillingRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Billing> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.Billing body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.Billing body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/Item/ManifestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/Item/ManifestItemRequestBuilder.cs
index 6b3fd318815..919015309b2 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/Item/ManifestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/Item/ManifestItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Manifest> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.Manifest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.Manifest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/ManifestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/ManifestsRequestBuilder.cs
index 94110d58912..caa4d618e19 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/ManifestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Manifests/ManifestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ManifestsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Manifest> PostAsync(global::Microsoft.Graph.Models.Partners.Billing.Manifest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.Manifest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/Item/OperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/Item/OperationItemRequestBuilder.cs
index 5115f0038bc..7e30b50e3a2 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/Item/OperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/Item/OperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Operation> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.Operation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.Operation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/OperationsRequestBuilder.cs
index 05796c86d37..4fe5af90474 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Operation> PostAsync(global::Microsoft.Graph.Models.Partners.Billing.Operation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.Operation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/BilledRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/BilledRequestBuilder.cs
index ef53b7cb088..1231d1bc1d6 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/BilledRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/BilledRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.BilledReconciliation> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.BilledReconciliation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.BilledReconciliation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
index b5df43c4322..514416cabd4 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
@@ -59,7 +59,7 @@ public ExportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Partners.Billing.AttributeSet>("attributeSet", AttributeSet);
             writer.WriteStringValue("invoiceId", InvoiceId);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
index 3fb8c390dad..927b081d323 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
@@ -52,7 +52,7 @@ public MicrosoftGraphPartnersBillingExportRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Operation> PostAsync(global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Repor
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/ReconciliationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/ReconciliationRequestBuilder.cs
index 013c4aa23fe..34da2aaf987 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/ReconciliationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/ReconciliationRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.BillingReconciliation> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.BillingReconciliation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.BillingReconciliation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
index 18e70f792c4..f03618151c0 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
@@ -65,7 +65,7 @@ public ExportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Partners.Billing.AttributeSet>("attributeSet", AttributeSet);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Partners.Billing.BillingPeriod>("billingPeriod", BillingPeriod);
             writer.WriteStringValue("currencyCode", CurrencyCode);
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
index a30a438ca69..20d0de64906 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
@@ -52,7 +52,7 @@ public MicrosoftGraphPartnersBillingExportRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Operation> PostAsync(global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Repor
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Reports.Partners.Billing.Reconciliation.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/UnbilledRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/UnbilledRequestBuilder.cs
index 06fee1d1e84..b5ffd5e6963 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/UnbilledRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Reconciliation/Unbilled/UnbilledRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.UnbilledReconciliation> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.UnbilledReconciliation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.UnbilledReconciliation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/BilledRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/BilledRequestBuilder.cs
index b4d54295fbf..d1c84f5dc7f 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/BilledRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/BilledRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.BilledUsage> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.BilledUsage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.BilledUsage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
index d1cbfdf8eeb..da36494712d 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
@@ -59,7 +59,7 @@ public ExportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Reports.Partners.Billing.Usage.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Partners.Billing.Usage.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Partners.Billing.AttributeSet>("attributeSet", AttributeSet);
             writer.WriteStringValue("invoiceId", InvoiceId);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
index f58795a0e2e..a64727dbf60 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Billed/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
@@ -52,7 +52,7 @@ public MicrosoftGraphPartnersBillingExportRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Operation> PostAsync(global::Microsoft.Graph.Reports.Partners.Billing.Usage.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Repor
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Reports.Partners.Billing.Usage.Billed.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
index c3cc6359480..487b1dc4087 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/ExportPostRequestBody.cs
@@ -65,7 +65,7 @@ public ExportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Reports.Partners.Billing.Usage.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Partners.Billing.Usage.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Partners.Billing.AttributeSet>("attributeSet", AttributeSet);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Partners.Billing.BillingPeriod>("billingPeriod", BillingPeriod);
             writer.WriteStringValue("currencyCode", CurrencyCode);
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
index 48257a58068..1ca74705a52 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/MicrosoftGraphPartnersBillingExport/MicrosoftGraphPartnersBillingExportRequestBuilder.cs
@@ -52,7 +52,7 @@ public MicrosoftGraphPartnersBillingExportRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.Operation> PostAsync(global::Microsoft.Graph.Reports.Partners.Billing.Usage.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Repor
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Reports.Partners.Billing.Usage.Unbilled.MicrosoftGraphPartnersBillingExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/UnbilledRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/UnbilledRequestBuilder.cs
index 731ea14c953..743a0bb3544 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/UnbilledRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/Unbilled/UnbilledRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.UnbilledUsage> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.UnbilledUsage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.UnbilledUsage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/UsageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/UsageRequestBuilder.cs
index f71b65492fe..2edc2c08caa 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/UsageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/Billing/Usage/UsageRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Billing.AzureUsage> PatchAsync(global::Microsoft.Graph.Models.Partners.Billing.AzureUsage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Billing.AzureUsage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Partners/PartnersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Partners/PartnersRequestBuilder.cs
index d85b3c6a243..f0148f15064 100644
--- a/src/Microsoft.Graph/Generated/Reports/Partners/PartnersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Partners/PartnersRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Partners.Partners> PatchAsync(global::Microsoft.Graph.Models.Partners.Partners body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Partners.Partners body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/ReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/ReportsRequestBuilder.cs
index 9a26604ff1e..b482ec81907 100644
--- a/src/Microsoft.Graph/Generated/Reports/ReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/ReportsRequestBuilder.cs
@@ -264,7 +264,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetEmailActivityUserDetailWithDate.GetEmailActivityUserDetailWithDateRequestBuilder GetEmailActivityUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetEmailActivityUserDetailWithDate.GetEmailActivityUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -304,7 +304,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetEmailAppUsageUserDetailWithDate.GetEmailAppUsageUserDetailWithDateRequestBuilder GetEmailAppUsageUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetEmailAppUsageUserDetailWithDate.GetEmailAppUsageUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -336,9 +336,9 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.Reports.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeRequestBuilder GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, string groupId, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
             if(string.IsNullOrEmpty(groupId)) throw new ArgumentNullException(nameof(groupId));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.Reports.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTime.GetGroupArchivedPrintJobsWithGroupIdWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, groupId, startDateTime);
         }
         /// <summary>
@@ -368,7 +368,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetM365AppUserDetailWithDate.GetM365AppUserDetailWithDateRequestBuilder GetM365AppUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetM365AppUserDetailWithDate.GetM365AppUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -438,7 +438,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetOffice365ActiveUserDetailWithDate.GetOffice365ActiveUserDetailWithDateRequestBuilder GetOffice365ActiveUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetOffice365ActiveUserDetailWithDate.GetOffice365ActiveUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -468,7 +468,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetOffice365GroupsActivityDetailWithDate.GetOffice365GroupsActivityDetailWithDateRequestBuilder GetOffice365GroupsActivityDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetOffice365GroupsActivityDetailWithDate.GetOffice365GroupsActivityDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -548,7 +548,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetOneDriveActivityUserDetailWithDate.GetOneDriveActivityUserDetailWithDateRequestBuilder GetOneDriveActivityUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetOneDriveActivityUserDetailWithDate.GetOneDriveActivityUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -578,7 +578,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetOneDriveUsageAccountDetailWithDate.GetOneDriveUsageAccountDetailWithDateRequestBuilder GetOneDriveUsageAccountDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetOneDriveUsageAccountDetailWithDate.GetOneDriveUsageAccountDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -620,9 +620,9 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="startDateTime">Usage: startDateTime={startDateTime}</param>
         public global::Microsoft.Graph.Reports.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeRequestBuilder GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, string printerId, DateTimeOffset? startDateTime)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
             if(string.IsNullOrEmpty(printerId)) throw new ArgumentNullException(nameof(printerId));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             return new global::Microsoft.Graph.Reports.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTime.GetPrinterArchivedPrintJobsWithPrinterIdWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, printerId, startDateTime);
         }
         /// <summary>
@@ -672,7 +672,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetSharePointActivityUserDetailWithDate.GetSharePointActivityUserDetailWithDateRequestBuilder GetSharePointActivityUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetSharePointActivityUserDetailWithDate.GetSharePointActivityUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -692,7 +692,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetSharePointSiteUsageDetailWithDate.GetSharePointSiteUsageDetailWithDateRequestBuilder GetSharePointSiteUsageDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetSharePointSiteUsageDetailWithDate.GetSharePointSiteUsageDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -772,7 +772,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetSkypeForBusinessActivityUserDetailWithDate.GetSkypeForBusinessActivityUserDetailWithDateRequestBuilder GetSkypeForBusinessActivityUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetSkypeForBusinessActivityUserDetailWithDate.GetSkypeForBusinessActivityUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -812,7 +812,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetSkypeForBusinessDeviceUsageUserDetailWithDate.GetSkypeForBusinessDeviceUsageUserDetailWithDateRequestBuilder GetSkypeForBusinessDeviceUsageUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetSkypeForBusinessDeviceUsageUserDetailWithDate.GetSkypeForBusinessDeviceUsageUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -942,7 +942,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetTeamsDeviceUsageUserDetailWithDate.GetTeamsDeviceUsageUserDetailWithDateRequestBuilder GetTeamsDeviceUsageUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetTeamsDeviceUsageUserDetailWithDate.GetTeamsDeviceUsageUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -972,7 +972,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetTeamsTeamActivityDetailWithDate.GetTeamsTeamActivityDetailWithDateRequestBuilder GetTeamsTeamActivityDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetTeamsTeamActivityDetailWithDate.GetTeamsTeamActivityDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -1032,7 +1032,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetTeamsUserActivityUserDetailWithDate.GetTeamsUserActivityUserDetailWithDateRequestBuilder GetTeamsUserActivityUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetTeamsUserActivityUserDetailWithDate.GetTeamsUserActivityUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -1054,8 +1054,8 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="userId">Usage: userId=&apos;{userId}&apos;</param>
         public global::Microsoft.Graph.Reports.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeRequestBuilder GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime(DateTimeOffset? endDateTime, DateTimeOffset? startDateTime, string userId)
         {
-            _ = endDateTime ?? throw new ArgumentNullException(nameof(endDateTime));
-            _ = startDateTime ?? throw new ArgumentNullException(nameof(startDateTime));
+            if(ReferenceEquals(endDateTime, null)) throw new ArgumentNullException(nameof(endDateTime));
+            if(ReferenceEquals(startDateTime, null)) throw new ArgumentNullException(nameof(startDateTime));
             if(string.IsNullOrEmpty(userId)) throw new ArgumentNullException(nameof(userId));
             return new global::Microsoft.Graph.Reports.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTime.GetUserArchivedPrintJobsWithUserIdWithStartDateTimeWithEndDateTimeRequestBuilder(PathParameters, RequestAdapter, endDateTime, startDateTime, userId);
         }
@@ -1086,7 +1086,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetYammerActivityUserDetailWithDate.GetYammerActivityUserDetailWithDateRequestBuilder GetYammerActivityUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetYammerActivityUserDetailWithDate.GetYammerActivityUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -1126,7 +1126,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetYammerDeviceUsageUserDetailWithDate.GetYammerDeviceUsageUserDetailWithDateRequestBuilder GetYammerDeviceUsageUserDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetYammerDeviceUsageUserDetailWithDate.GetYammerDeviceUsageUserDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -1156,7 +1156,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         /// <param name="date">Usage: date={date}</param>
         public global::Microsoft.Graph.Reports.GetYammerGroupsActivityDetailWithDate.GetYammerGroupsActivityDetailWithDateRequestBuilder GetYammerGroupsActivityDetailWithDate(Date? date)
         {
-            _ = date ?? throw new ArgumentNullException(nameof(date));
+            if(ReferenceEquals(date, null)) throw new ArgumentNullException(nameof(date));
             return new global::Microsoft.Graph.Reports.GetYammerGroupsActivityDetailWithDate.GetYammerGroupsActivityDetailWithDateRequestBuilder(PathParameters, RequestAdapter, date);
         }
         /// <summary>
@@ -1190,9 +1190,9 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public global::Microsoft.Graph.Reports.ManagedDeviceEnrollmentFailureDetailsWithSkipWithTopWithFilterWithSkipToken.ManagedDeviceEnrollmentFailureDetailsWithSkipWithTopWithFilterWithSkipTokenRequestBuilder ManagedDeviceEnrollmentFailureDetailsWithSkipWithTopWithFilterWithSkipToken(string filter, int? skip, string skipToken, int? top)
         {
             if(string.IsNullOrEmpty(filter)) throw new ArgumentNullException(nameof(filter));
-            _ = skip ?? throw new ArgumentNullException(nameof(skip));
+            if(ReferenceEquals(skip, null)) throw new ArgumentNullException(nameof(skip));
             if(string.IsNullOrEmpty(skipToken)) throw new ArgumentNullException(nameof(skipToken));
-            _ = top ?? throw new ArgumentNullException(nameof(top));
+            if(ReferenceEquals(top, null)) throw new ArgumentNullException(nameof(top));
             return new global::Microsoft.Graph.Reports.ManagedDeviceEnrollmentFailureDetailsWithSkipWithTopWithFilterWithSkipToken.ManagedDeviceEnrollmentFailureDetailsWithSkipWithTopWithFilterWithSkipTokenRequestBuilder(PathParameters, RequestAdapter, filter, skip, skipToken, top);
         }
         /// <summary>
@@ -1223,7 +1223,7 @@ public ReportsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ReportRoot> PatchAsync(global::Microsoft.Graph.Models.ReportRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -1265,7 +1265,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ReportRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersGetResponse.cs b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersGetResponse.cs
index 0baa47372c5..fc2615ca42d 100644
--- a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAttackSimulationRepeatOffendersGetResponse : global::Mic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.Security.GetAttackSimulationRepeatOffenders.GetAttackSimulationRepeatOffendersGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Security.GetAttackSimulationRepeatOffenders.GetAttackSimulationRepeatOffendersGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttackSimulationRepeatOffender>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersResponse.cs b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersResponse.cs
index b45fc68713e..3b59d197279 100644
--- a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationRepeatOffenders/GetAttackSimulationRepeatOffendersResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAttackSimulationRepeatOffendersResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.Security.GetAttackSimulationRepeatOffenders.GetAttackSimulationRepeatOffendersResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Security.GetAttackSimulationRepeatOffenders.GetAttackSimulationRepeatOffendersResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageGetResponse.cs b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageGetResponse.cs
index deb21f67d4f..3a81b6f54ab 100644
--- a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAttackSimulationSimulationUserCoverageGetResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.Security.GetAttackSimulationSimulationUserCoverage.GetAttackSimulationSimulationUserCoverageGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Security.GetAttackSimulationSimulationUserCoverage.GetAttackSimulationSimulationUserCoverageGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttackSimulationSimulationUserCoverage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageResponse.cs b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageResponse.cs
index fae85c6654a..5d3ffcd5b7b 100644
--- a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationSimulationUserCoverage/GetAttackSimulationSimulationUserCoverageResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAttackSimulationSimulationUserCoverageResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.Security.GetAttackSimulationSimulationUserCoverage.GetAttackSimulationSimulationUserCoverageResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Security.GetAttackSimulationSimulationUserCoverage.GetAttackSimulationSimulationUserCoverageResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageGetResponse.cs b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageGetResponse.cs
index dab2579feb1..e07fa7a20f6 100644
--- a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAttackSimulationTrainingUserCoverageGetResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.Security.GetAttackSimulationTrainingUserCoverage.GetAttackSimulationTrainingUserCoverageGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Security.GetAttackSimulationTrainingUserCoverage.GetAttackSimulationTrainingUserCoverageGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttackSimulationTrainingUserCoverage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageResponse.cs b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageResponse.cs
index fcdd9c11867..869e0e6ae66 100644
--- a/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageResponse.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Security/GetAttackSimulationTrainingUserCoverage/GetAttackSimulationTrainingUserCoverageResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAttackSimulationTrainingUserCoverageResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Reports.Security.GetAttackSimulationTrainingUserCoverage.GetAttackSimulationTrainingUserCoverageResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Reports.Security.GetAttackSimulationTrainingUserCoverage.GetAttackSimulationTrainingUserCoverageResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Reports/Security/SecurityRequestBuilder.cs b/src/Microsoft.Graph/Generated/Reports/Security/SecurityRequestBuilder.cs
index 3508d91939e..89331497dc1 100644
--- a/src/Microsoft.Graph/Generated/Reports/Security/SecurityRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Reports/Security/SecurityRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SecurityReportsRoot> PatchAsync(global::Microsoft.Graph.Models.SecurityReportsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SecurityReportsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/DirectoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/DirectoryRequestBuilder.cs
index 323aa7477b7..babd5ec5cc2 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/DirectoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/DirectoryRequestBuilder.cs
@@ -150,7 +150,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RbacApplication> PatchAsync(global::Microsoft.Graph.Models.RbacApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -211,7 +211,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RbacApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs
index 11d31cba71f..4aa612ab3ca 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceAction> PatchAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs
index db3c1bb9ac5..bda97b17335 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceActionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceAction> PostAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs
index c092d77feb7..fecfc106a27 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace> PatchAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs
index d1083366977..08f7ac57210 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceNamespacesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace> PostAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 52f067b5d17..036cfd6e7f2 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 07026fcca45..e0cb51e76fd 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs
index ffe8c0fb903..e47eaae1293 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs
index e5481e41979..4cb19948234 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs
@@ -105,7 +105,7 @@ public RoleAssignmentScheduleInstancesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 205b60e3b22..1607681afd5 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index fb926cb957c..9554fcdcf86 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs
index 8b79c29e113..24f91e0a560 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs
@@ -139,7 +139,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -200,7 +200,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs
index 5edbd7eb922..be704a1294a 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs
@@ -106,7 +106,7 @@ public RoleAssignmentScheduleRequestsRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 701688dd79f..f8a4922ab3e 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 5a5d62390aa..299a6baec32 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs
index c1c36da9f3a..aff6bdb7c23 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs
index 3aa2e3541ec..3fcef15397c 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs
@@ -105,7 +105,7 @@ public RoleAssignmentSchedulesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs
index d297d57f8b8..8ac1e706b7c 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppScope> PatchAsync(global::Microsoft.Graph.Models.AppScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs
index 41f8c59775c..d605b1ab24c 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs
@@ -122,7 +122,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -183,7 +183,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/RoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/RoleAssignmentsRequestBuilder.cs
index 67d5021be64..322dd5e973f 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/RoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleAssignments/RoleAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignment> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs
index 9fc9626de86..5c5aef28a55 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs
@@ -93,7 +93,7 @@ public InheritsPermissionsFromRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
index 2e7c4d5e0ab..9ce4e12dc16 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
index 0e895d3d4e1..645412ad3eb 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/RoleDefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
index c04ca52847d..db6661b2689 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RoleDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index d4c85ae5cf2..99e7f328d9e 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 6c9810f70be..45b12cf1fd1 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs
index 2c8964f8baf..9b8f23a2565 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs
@@ -121,7 +121,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -182,7 +182,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs
index cce3573de19..78b554cf514 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs
@@ -105,7 +105,7 @@ public RoleEligibilityScheduleInstancesRequestBuilder(string rawUrl, IRequestAda
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 91c82501304..5a226b0fff2 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 65fdd26fa2a..22f750ca093 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs
index e9df399937f..f58f843424e 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs
@@ -133,7 +133,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -194,7 +194,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs
index 832d173d3f5..c33a3a0b04b 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs
@@ -106,7 +106,7 @@ public RoleEligibilityScheduleRequestsRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index e91a7e8ce34..b4c65359765 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 00caa98ebb7..4c60d050f87 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.DirectoryNamespace.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs
index c7b987d2c26..9958c09b59c 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs
@@ -121,7 +121,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -182,7 +182,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs
index 914d3e73f78..be6778b02ed 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/DirectoryNamespace/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs
@@ -105,7 +105,7 @@ public RoleEligibilitySchedulesRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/EntitlementManagementRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/EntitlementManagementRequestBuilder.cs
index 758de10ca69..c6823627310 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/EntitlementManagementRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/EntitlementManagementRequestBuilder.cs
@@ -150,7 +150,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RbacApplication> PatchAsync(global::Microsoft.Graph.Models.RbacApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -211,7 +211,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RbacApplication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs
index 8940b49f278..7ee0673f840 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/Item/UnifiedRbacResourceActionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceAction> PatchAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs
index 462e0c136b7..b7ccd40075f 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/ResourceActions/ResourceActionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceActionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceAction> PostAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceAction body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs
index 2ccac90d356..e93286260ab 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/Item/UnifiedRbacResourceNamespaceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace> PatchAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs
index 50864f8b25c..40bf1da4328 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/ResourceNamespaces/ResourceNamespacesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourceNamespacesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace> PostAsync(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRbacResourceNamespace body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 61951f54601..2e871705112 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 36350aa7f92..b8c4983d28d 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs
index ffcee31d60e..e59e292655f 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/Item/UnifiedRoleAssignmentScheduleInstanceItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs
index 75637d7f5c5..2e73e741a75 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleInstances/RoleAssignmentScheduleInstancesRequestBuilder.cs
@@ -104,7 +104,7 @@ public RoleAssignmentScheduleInstancesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 12d9eeebcf9..07ff52e0bc4 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index a48c234df01..9e1ce44a1aa 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs
index 49f68bb62b4..bddd29dad01 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/Item/UnifiedRoleAssignmentScheduleRequestItemRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs
index 2ac9c39fd59..843edb3b44c 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentScheduleRequests/RoleAssignmentScheduleRequestsRequestBuilder.cs
@@ -104,7 +104,7 @@ public RoleAssignmentScheduleRequestsRequestBuilder(string rawUrl, IRequestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 83f5e23e39a..963c9f13ab6 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 11a5f552758..0654dfc1b0d 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleAssignmentSchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs
index f4c27bdae07..81c4cc50ad9 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/Item/UnifiedRoleAssignmentScheduleItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs
index eab0217c728..395c0487185 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignmentSchedules/RoleAssignmentSchedulesRequestBuilder.cs
@@ -104,7 +104,7 @@ public RoleAssignmentSchedulesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignmentSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs
index 3182cfa5bf3..0cb8549d929 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/AppScope/AppScopeRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppScope> PatchAsync(global::Microsoft.Graph.Models.AppScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppScope body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs
index c055121e3a5..2d0dd1e188d 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/Item/UnifiedRoleAssignmentItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs
index 14e6309dbcc..6e845f0bc35 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleAssignments/RoleAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleAssignment> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs
index 0fd24e76de1..1fe05ac16ed 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/InheritsPermissionsFromRequestBuilder.cs
@@ -93,7 +93,7 @@ public InheritsPermissionsFromRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
index 526ad6e5eef..d6e4c5e70eb 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/InheritsPermissionsFrom/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
index a1c1173bb1a..cdfefac3854 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/Item/UnifiedRoleDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
index 8bd181202dc..3c8d9ce2c64 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleDefinitions/RoleDefinitionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public RoleDefinitionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleDefinition> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 249fae21fbb..461ced24d74 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 7e489af379a..c6898669888 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleInstances.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs
index 3f0abb51786..fa2a738ba98 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/Item/UnifiedRoleEligibilityScheduleInstanceItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs
index c942eeb4f42..5b144d02061 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleInstances/RoleEligibilityScheduleInstancesRequestBuilder.cs
@@ -104,7 +104,7 @@ public RoleEligibilityScheduleInstancesRequestBuilder(string rawUrl, IRequestAda
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index fa74fc6d0a8..32776551d25 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index 6af46bc4d96..5b0650a6ef8 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilityScheduleRequests.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs
index d2dd9fcf28f..9884fc6fcaf 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/Item/UnifiedRoleEligibilityScheduleRequestItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs
index 82d775717ef..bcb66c3fab9 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilityScheduleRequests/RoleEligibilityScheduleRequestsRequestBuilder.cs
@@ -104,7 +104,7 @@ public RoleEligibilityScheduleRequestsRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilityScheduleRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
index 238c7a75c30..b7bd1127ac0 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterByCurrentUserWithOnGetResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
index d181857457f..12d93f037d4 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/FilterByCurrentUserWithOn/FilterByCurrentUserWithOnResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterByCurrentUserWithOnResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.RoleManagement.EntitlementManagement.RoleEligibilitySchedules.FilterByCurrentUserWithOn.FilterByCurrentUserWithOnResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs
index 3849a3a1b58..b073cc08a0d 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/Item/UnifiedRoleEligibilityScheduleItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule> PatchAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs
index d1dd89ca811..a5b78e00b92 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/EntitlementManagement/RoleEligibilitySchedules/RoleEligibilitySchedulesRequestBuilder.cs
@@ -104,7 +104,7 @@ public RoleEligibilitySchedulesRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule> PostAsync(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UnifiedRoleEligibilitySchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/RoleManagement/RoleManagementRequestBuilder.cs b/src/Microsoft.Graph/Generated/RoleManagement/RoleManagementRequestBuilder.cs
index 0e76f4e7eb3..71b7ca08b07 100644
--- a/src/Microsoft.Graph/Generated/RoleManagement/RoleManagementRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/RoleManagement/RoleManagementRequestBuilder.cs
@@ -86,7 +86,7 @@ public RoleManagementRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.RoleManagement> PatchAsync(global::Microsoft.Graph.Models.RoleManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -128,7 +128,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RoleManagement body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/SchemaExtensions/Item/SchemaExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/SchemaExtensions/Item/SchemaExtensionItemRequestBuilder.cs
index 5790d2713f1..20d406644bf 100644
--- a/src/Microsoft.Graph/Generated/SchemaExtensions/Item/SchemaExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/SchemaExtensions/Item/SchemaExtensionItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SchemaExtension> PatchAsync(global::Microsoft.Graph.Models.SchemaExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SchemaExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/SchemaExtensions/SchemaExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/SchemaExtensions/SchemaExtensionsRequestBuilder.cs
index 7d710fed255..ff66c84cc6b 100644
--- a/src/Microsoft.Graph/Generated/SchemaExtensions/SchemaExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/SchemaExtensions/SchemaExtensionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SchemaExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.SchemaExtension> PostAsync(global::Microsoft.Graph.Models.SchemaExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SchemaExtension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ScopedRoleMemberships/Item/ScopedRoleMembershipItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ScopedRoleMemberships/Item/ScopedRoleMembershipItemRequestBuilder.cs
index 69e6e5515a3..875e6edf1fc 100644
--- a/src/Microsoft.Graph/Generated/ScopedRoleMemberships/Item/ScopedRoleMembershipItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ScopedRoleMemberships/Item/ScopedRoleMembershipItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PatchAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ScopedRoleMemberships/ScopedRoleMembershipsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ScopedRoleMemberships/ScopedRoleMembershipsRequestBuilder.cs
index 0ba21889884..c3a34a47e1a 100644
--- a/src/Microsoft.Graph/Generated/ScopedRoleMemberships/ScopedRoleMembershipsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ScopedRoleMemberships/ScopedRoleMembershipsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopedRoleMembershipsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PostAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Acronyms/AcronymsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/Acronyms/AcronymsRequestBuilder.cs
index 8c816b7e25e..df62b8707a1 100644
--- a/src/Microsoft.Graph/Generated/Search/Acronyms/AcronymsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/Acronyms/AcronymsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AcronymsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Search.Acronym> PostAsync(global::Microsoft.Graph.Models.Search.Acronym body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Search.Acronym body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Acronyms/Item/AcronymItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/Acronyms/Item/AcronymItemRequestBuilder.cs
index 6a7e8b472f8..d4b22d8b938 100644
--- a/src/Microsoft.Graph/Generated/Search/Acronyms/Item/AcronymItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/Acronyms/Item/AcronymItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Search.Acronym> PatchAsync(global::Microsoft.Graph.Models.Search.Acronym body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Search.Acronym body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Bookmarks/BookmarksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/Bookmarks/BookmarksRequestBuilder.cs
index 728a0625434..664672b3ead 100644
--- a/src/Microsoft.Graph/Generated/Search/Bookmarks/BookmarksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/Bookmarks/BookmarksRequestBuilder.cs
@@ -95,7 +95,7 @@ public BookmarksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Search.Bookmark> PostAsync(global::Microsoft.Graph.Models.Search.Bookmark body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Search.Bookmark body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Bookmarks/Item/BookmarkItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/Bookmarks/Item/BookmarkItemRequestBuilder.cs
index 37611c7f8fa..337045d5b5f 100644
--- a/src/Microsoft.Graph/Generated/Search/Bookmarks/Item/BookmarkItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/Bookmarks/Item/BookmarkItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Search.Bookmark> PatchAsync(global::Microsoft.Graph.Models.Search.Bookmark body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Search.Bookmark body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Qnas/Item/QnaItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/Qnas/Item/QnaItemRequestBuilder.cs
index ba1408bc667..a3c568d01a1 100644
--- a/src/Microsoft.Graph/Generated/Search/Qnas/Item/QnaItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/Qnas/Item/QnaItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Search.Qna> PatchAsync(global::Microsoft.Graph.Models.Search.Qna body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Search.Qna body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Qnas/QnasRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/Qnas/QnasRequestBuilder.cs
index 01d783b104d..7c819cb2cd9 100644
--- a/src/Microsoft.Graph/Generated/Search/Qnas/QnasRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/Qnas/QnasRequestBuilder.cs
@@ -95,7 +95,7 @@ public QnasRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Search.Qna> PostAsync(global::Microsoft.Graph.Models.Search.Qna body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Search.Qna body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Query/QueryPostRequestBody.cs b/src/Microsoft.Graph/Generated/Search/Query/QueryPostRequestBody.cs
index e9f60840de6..5c28511c67f 100644
--- a/src/Microsoft.Graph/Generated/Search/Query/QueryPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Search/Query/QueryPostRequestBody.cs
@@ -53,7 +53,7 @@ public QueryPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Search.Query.QueryPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Search.Query.QueryPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SearchRequest>("requests", Requests);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Search/Query/QueryPostResponse.cs b/src/Microsoft.Graph/Generated/Search/Query/QueryPostResponse.cs
index 0f01c4d2cfc..b32bdb4bfef 100644
--- a/src/Microsoft.Graph/Generated/Search/Query/QueryPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Search/Query/QueryPostResponse.cs
@@ -36,7 +36,7 @@ public partial class QueryPostResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Search.Query.QueryPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Search.Query.QueryPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SearchResponse>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Search/Query/QueryRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/Query/QueryRequestBuilder.cs
index 2ea43751c66..b0c9247908a 100644
--- a/src/Microsoft.Graph/Generated/Search/Query/QueryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/Query/QueryRequestBuilder.cs
@@ -51,7 +51,7 @@ public QueryRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Search.Query.QueryPostResponse> PostAsQueryPostResponseAsync(global::Microsoft.Graph.Search.Query.QueryPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public QueryRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Search.Query.QueryResponse> PostAsync(global::Microsoft.Graph.Search.Query.QueryPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Searc
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Search.Query.QueryPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Search/Query/QueryResponse.cs b/src/Microsoft.Graph/Generated/Search/Query/QueryResponse.cs
index 5d1041ffd03..4269ed638af 100644
--- a/src/Microsoft.Graph/Generated/Search/Query/QueryResponse.cs
+++ b/src/Microsoft.Graph/Generated/Search/Query/QueryResponse.cs
@@ -20,7 +20,7 @@ public partial class QueryResponse : global::Microsoft.Graph.Search.Query.QueryP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Search.Query.QueryResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Search.Query.QueryResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Search/SearchRequestBuilder.cs b/src/Microsoft.Graph/Generated/Search/SearchRequestBuilder.cs
index f9f5316d939..11ceed813fc 100644
--- a/src/Microsoft.Graph/Generated/Search/SearchRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Search/SearchRequestBuilder.cs
@@ -98,7 +98,7 @@ public SearchRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.SearchEntity> PatchAsync(global::Microsoft.Graph.Models.SearchEntity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -140,7 +140,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SearchEntity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Alerts/AlertsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Alerts/AlertsRequestBuilder.cs
index b8a5f545c58..9e8a3540276 100644
--- a/src/Microsoft.Graph/Generated/Security/Alerts/AlertsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Alerts/AlertsRequestBuilder.cs
@@ -98,7 +98,7 @@ public AlertsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Alert> PostAsync(global::Microsoft.Graph.Models.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Alerts/Item/AlertItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Alerts/Item/AlertItemRequestBuilder.cs
index a3394708480..a7cd9c96352 100644
--- a/src/Microsoft.Graph/Generated/Security/Alerts/Item/AlertItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Alerts/Item/AlertItemRequestBuilder.cs
@@ -78,7 +78,7 @@ public AlertItemRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Alert> PatchAsync(global::Microsoft.Graph.Models.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Alerts_v2/Alerts_v2RequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Alerts_v2/Alerts_v2RequestBuilder.cs
index cda0461b686..6e60716087f 100644
--- a/src/Microsoft.Graph/Generated/Security/Alerts_v2/Alerts_v2RequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Alerts_v2/Alerts_v2RequestBuilder.cs
@@ -94,7 +94,7 @@ public Alerts_v2RequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.Alert> PostAsync(global::Microsoft.Graph.Models.Security.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/AlertItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/AlertItemRequestBuilder.cs
index d588b3c4079..bce595993f2 100644
--- a/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/AlertItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/AlertItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.Alert> PatchAsync(global::Microsoft.Graph.Models.Security.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Alert body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/Comments/CommentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/Comments/CommentsRequestBuilder.cs
index ce1df2badb1..390ddec9001 100644
--- a/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/Comments/CommentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Alerts_v2/Item/Comments/CommentsRequestBuilder.cs
@@ -58,7 +58,7 @@ public CommentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<List<global::Microsoft.Graph.Models.Security.AlertComment>> PostAsync(List<global::Microsoft.Graph.Models.Security.AlertComment> body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -82,7 +82,7 @@ public RequestInformation ToPostRequestInformation(List<global::Microsoft.Graph.
         public RequestInformation ToPostRequestInformation(List<global::Microsoft.Graph.Models.Security.AlertComment> body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/AttackSimulationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/AttackSimulationRequestBuilder.cs
index a34cfd8b557..0847eb73c4f 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/AttackSimulationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/AttackSimulationRequestBuilder.cs
@@ -144,7 +144,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttackSimulationRoot> PatchAsync(global::Microsoft.Graph.Models.AttackSimulationRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -205,7 +205,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttackSimulationRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/EndUserNotificationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/EndUserNotificationsRequestBuilder.cs
index 01a00ad87c4..dccf85839a4 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/EndUserNotificationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/EndUserNotificationsRequestBuilder.cs
@@ -94,7 +94,7 @@ public EndUserNotificationsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.EndUserNotification> PostAsync(global::Microsoft.Graph.Models.EndUserNotification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EndUserNotification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/DetailsRequestBuilder.cs
index ce05b25a0b6..a7a9fac6f8d 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/DetailsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DetailsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.EndUserNotificationDetail> PostAsync(global::Microsoft.Graph.Models.EndUserNotificationDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EndUserNotificationDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/Item/EndUserNotificationDetailItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/Item/EndUserNotificationDetailItemRequestBuilder.cs
index ac9b88f439e..1dd1f47fb4a 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/Item/EndUserNotificationDetailItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/Details/Item/EndUserNotificationDetailItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EndUserNotificationDetail> PatchAsync(global::Microsoft.Graph.Models.EndUserNotificationDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EndUserNotificationDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/EndUserNotificationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/EndUserNotificationItemRequestBuilder.cs
index 4919ff0c63a..46b6432dcee 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/EndUserNotificationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/EndUserNotifications/Item/EndUserNotificationItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EndUserNotification> PatchAsync(global::Microsoft.Graph.Models.EndUserNotification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EndUserNotification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/DetailsRequestBuilder.cs
index 136d044d498..a911c02243b 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/DetailsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DetailsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.LandingPageDetail> PostAsync(global::Microsoft.Graph.Models.LandingPageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LandingPageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/Item/LandingPageDetailItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/Item/LandingPageDetailItemRequestBuilder.cs
index fe82a7c2a02..c975ad04283 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/Item/LandingPageDetailItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/Details/Item/LandingPageDetailItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LandingPageDetail> PatchAsync(global::Microsoft.Graph.Models.LandingPageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LandingPageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/LandingPageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/LandingPageItemRequestBuilder.cs
index 3010e7fc26d..a39a46f63f4 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/LandingPageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/Item/LandingPageItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LandingPage> PatchAsync(global::Microsoft.Graph.Models.LandingPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LandingPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/LandingPagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/LandingPagesRequestBuilder.cs
index 72a52b1060f..0b0e02956fd 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/LandingPagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LandingPages/LandingPagesRequestBuilder.cs
@@ -94,7 +94,7 @@ public LandingPagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.LandingPage> PostAsync(global::Microsoft.Graph.Models.LandingPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LandingPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/Item/LoginPageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/Item/LoginPageItemRequestBuilder.cs
index 27d6590d6dc..284a7f31342 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/Item/LoginPageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/Item/LoginPageItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LoginPage> PatchAsync(global::Microsoft.Graph.Models.LoginPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LoginPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/LoginPagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/LoginPagesRequestBuilder.cs
index 5ebdec70c0b..633cda446a3 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/LoginPagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/LoginPages/LoginPagesRequestBuilder.cs
@@ -94,7 +94,7 @@ public LoginPagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.LoginPage> PostAsync(global::Microsoft.Graph.Models.LoginPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LoginPage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/Item/AttackSimulationOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/Item/AttackSimulationOperationItemRequestBuilder.cs
index e1ec9f3f6ca..11d6cdac5ed 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/Item/AttackSimulationOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/Item/AttackSimulationOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttackSimulationOperation> PatchAsync(global::Microsoft.Graph.Models.AttackSimulationOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttackSimulationOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/OperationsRequestBuilder.cs
index 7bb6e8f65f4..ec952c394b4 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.AttackSimulationOperation> PostAsync(global::Microsoft.Graph.Models.AttackSimulationOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttackSimulationOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/Item/PayloadItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/Item/PayloadItemRequestBuilder.cs
index eb1601f22a8..dd6bb034dbb 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/Item/PayloadItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/Item/PayloadItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Payload> PatchAsync(global::Microsoft.Graph.Models.Payload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Payload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/PayloadsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/PayloadsRequestBuilder.cs
index 66ab24f8f5d..a1e84995eaa 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/PayloadsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Payloads/PayloadsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PayloadsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Payload> PostAsync(global::Microsoft.Graph.Models.Payload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Payload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/Item/SimulationAutomationRunItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/Item/SimulationAutomationRunItemRequestBuilder.cs
index 68937980188..313f86dabf7 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/Item/SimulationAutomationRunItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/Item/SimulationAutomationRunItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SimulationAutomationRun> PatchAsync(global::Microsoft.Graph.Models.SimulationAutomationRun body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SimulationAutomationRun body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/RunsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/RunsRequestBuilder.cs
index 5fafc79468a..60deab31c2d 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/RunsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/Runs/RunsRequestBuilder.cs
@@ -94,7 +94,7 @@ public RunsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.SimulationAutomationRun> PostAsync(global::Microsoft.Graph.Models.SimulationAutomationRun body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SimulationAutomationRun body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/SimulationAutomationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/SimulationAutomationItemRequestBuilder.cs
index fc01bdd11b3..849faef4b78 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/SimulationAutomationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/Item/SimulationAutomationItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SimulationAutomation> PatchAsync(global::Microsoft.Graph.Models.SimulationAutomation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SimulationAutomation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/SimulationAutomationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/SimulationAutomationsRequestBuilder.cs
index fa480ece625..a7bdc27be43 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/SimulationAutomationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/SimulationAutomations/SimulationAutomationsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SimulationAutomationsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.SimulationAutomation> PostAsync(global::Microsoft.Graph.Models.SimulationAutomation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SimulationAutomation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/Item/SimulationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/Item/SimulationItemRequestBuilder.cs
index 9bebf64032f..6151c0a40bd 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/Item/SimulationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/Item/SimulationItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Simulation> PatchAsync(global::Microsoft.Graph.Models.Simulation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Simulation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/SimulationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/SimulationsRequestBuilder.cs
index d998ce7f6cd..e6d57de9071 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/SimulationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Simulations/SimulationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SimulationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Simulation> PostAsync(global::Microsoft.Graph.Models.Simulation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Simulation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/Item/TrainingLanguageDetailItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/Item/TrainingLanguageDetailItemRequestBuilder.cs
index 2d4714ed6cb..5a28753b37a 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/Item/TrainingLanguageDetailItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/Item/TrainingLanguageDetailItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TrainingLanguageDetail> PatchAsync(global::Microsoft.Graph.Models.TrainingLanguageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TrainingLanguageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/LanguageDetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/LanguageDetailsRequestBuilder.cs
index fc5f784678f..11a3105e08c 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/LanguageDetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/LanguageDetails/LanguageDetailsRequestBuilder.cs
@@ -93,7 +93,7 @@ public LanguageDetailsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.TrainingLanguageDetail> PostAsync(global::Microsoft.Graph.Models.TrainingLanguageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TrainingLanguageDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/TrainingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/TrainingItemRequestBuilder.cs
index f73406b53d3..4a116ab6f56 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/TrainingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/Item/TrainingItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Training> PatchAsync(global::Microsoft.Graph.Models.Training body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Training body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/TrainingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/TrainingsRequestBuilder.cs
index 4aacab91bb0..7f2fdd93d6f 100644
--- a/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/TrainingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/AttackSimulation/Trainings/TrainingsRequestBuilder.cs
@@ -94,7 +94,7 @@ public TrainingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Training> PostAsync(global::Microsoft.Graph.Models.Training body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Training body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/CasesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/CasesRequestBuilder.cs
index ebdd881b3ad..b1146eeb27e 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/CasesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/CasesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.CasesRoot> PatchAsync(global::Microsoft.Graph.Models.Security.CasesRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.CasesRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/EdiscoveryCasesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/EdiscoveryCasesRequestBuilder.cs
index e388077f193..cda173c1842 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/EdiscoveryCasesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/EdiscoveryCasesRequestBuilder.cs
@@ -95,7 +95,7 @@ public EdiscoveryCasesRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryCase> PostAsync(global::Microsoft.Graph.Models.Security.EdiscoveryCase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryCase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/CustodiansRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/CustodiansRequestBuilder.cs
index 788a52b596a..33276e0878f 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/CustodiansRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/CustodiansRequestBuilder.cs
@@ -107,7 +107,7 @@ public CustodiansRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryCustodian> PostAsync(global::Microsoft.Graph.Models.Security.EdiscoveryCustodian body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryCustodian body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/EdiscoveryCustodianItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/EdiscoveryCustodianItemRequestBuilder.cs
index 180025e9bbb..da4022b8fcd 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/EdiscoveryCustodianItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/EdiscoveryCustodianItemRequestBuilder.cs
@@ -151,7 +151,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryCustodian> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoveryCustodian body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -212,7 +212,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryCustodian body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/Item/SiteSourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/Item/SiteSourceItemRequestBuilder.cs
index 5b130bce22a..e74851ca7ee 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/Item/SiteSourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/Item/SiteSourceItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.SiteSource> PatchAsync(global::Microsoft.Graph.Models.Security.SiteSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.SiteSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/SiteSourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/SiteSourcesRequestBuilder.cs
index e80a824e8b4..708e0d16130 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/SiteSourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/SiteSources/SiteSourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public SiteSourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.SiteSource> PostAsync(global::Microsoft.Graph.Models.Security.SiteSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.SiteSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/Item/UnifiedGroupSourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/Item/UnifiedGroupSourceItemRequestBuilder.cs
index 5983b2f2bf7..e7989170f45 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/Item/UnifiedGroupSourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/Item/UnifiedGroupSourceItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.UnifiedGroupSource> PatchAsync(global::Microsoft.Graph.Models.Security.UnifiedGroupSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.UnifiedGroupSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/UnifiedGroupSourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/UnifiedGroupSourcesRequestBuilder.cs
index aac41b8e088..d614c0ef845 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/UnifiedGroupSourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UnifiedGroupSources/UnifiedGroupSourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public UnifiedGroupSourcesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.Security.UnifiedGroupSource> PostAsync(global::Microsoft.Graph.Models.Security.UnifiedGroupSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.UnifiedGroupSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/Item/UserSourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/Item/UserSourceItemRequestBuilder.cs
index d2059c5e18e..92b68513d82 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/Item/UserSourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/Item/UserSourceItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.UserSource> PatchAsync(global::Microsoft.Graph.Models.Security.UserSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.UserSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/UserSourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/UserSourcesRequestBuilder.cs
index bc4a7ceeda0..1cc130c01f5 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/UserSourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/Item/UserSources/UserSourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public UserSourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.UserSource> PostAsync(global::Microsoft.Graph.Models.Security.UserSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.UserSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs
index 1cde919d6b8..0fd70c0f14b 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyHoldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs
index 651e1d9b1fc..2402a5da2d2 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs
index 62a755f7e2b..002b9f8630b 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs
index eefc31cc722..d03da8b9c10 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Custodians/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs
@@ -52,7 +52,7 @@ public RemoveHoldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Custodians.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/EdiscoveryCaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/EdiscoveryCaseItemRequestBuilder.cs
index 3ea8acffb85..671de843e2d 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/EdiscoveryCaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/EdiscoveryCaseItemRequestBuilder.cs
@@ -153,7 +153,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryCase> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoveryCase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -214,7 +214,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryCase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/DataSource/DataSourceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/DataSource/DataSourceRequestBuilder.cs
index 152f140f423..1035d87de87 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/DataSource/DataSourceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/DataSource/DataSourceRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.DataSource> PatchAsync(global::Microsoft.Graph.Models.Security.DataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.DataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/EdiscoveryNoncustodialDataSourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/EdiscoveryNoncustodialDataSourceItemRequestBuilder.cs
index 7d78067122c..074ece328f5 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/EdiscoveryNoncustodialDataSourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/Item/EdiscoveryNoncustodialDataSourceItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs
index 836946ec6d3..62b39db980b 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/ApplyHoldPostRequestBody.cs
@@ -52,7 +52,7 @@ public ApplyHoldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs
index 1290bba7cc2..91b53ea0d66 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityApplyHold/MicrosoftGraphSecurityApplyHoldRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityApplyHold.ApplyHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs
index 7ad66e0eefe..dcad3b73814 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/MicrosoftGraphSecurityRemoveHoldRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs
index e0ba246b321..81d8b7491ec 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/MicrosoftGraphSecurityRemoveHold/RemoveHoldPostRequestBody.cs
@@ -52,7 +52,7 @@ public RemoveHoldPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.NoncustodialDataSources.MicrosoftGraphSecurityRemoveHold.RemoveHoldPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/NoncustodialDataSourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/NoncustodialDataSourcesRequestBuilder.cs
index 61705d2538d..42b60400049 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/NoncustodialDataSourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/NoncustodialDataSources/NoncustodialDataSourcesRequestBuilder.cs
@@ -106,7 +106,7 @@ public NoncustodialDataSourcesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource> PostAsync(global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryNoncustodialDataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/Item/CaseOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/Item/CaseOperationItemRequestBuilder.cs
index 3c325188d8e..bb7c54b618a 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/Item/CaseOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/Item/CaseOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.CaseOperation> PatchAsync(global::Microsoft.Graph.Models.Security.CaseOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.CaseOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/OperationsRequestBuilder.cs
index 8151ac49004..1e493c44d60 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Operations/OperationsRequestBuilder.cs
@@ -94,7 +94,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.CaseOperation> PostAsync(global::Microsoft.Graph.Models.Security.CaseOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.CaseOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/EdiscoveryReviewSetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/EdiscoveryReviewSetItemRequestBuilder.cs
index 31ca51a6b69..f7ee5acb02b 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/EdiscoveryReviewSetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/EdiscoveryReviewSetItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/AddToReviewSetPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/AddToReviewSetPostRequestBody.cs
index 731b78bf758..792cfcb8bab 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/AddToReviewSetPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/AddToReviewSetPostRequestBody.cs
@@ -77,7 +77,7 @@ public AddToReviewSetPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityAddToReviewSet.AddToReviewSetPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityAddToReviewSet.AddToReviewSetPostRequestBody();
         }
         /// <summary>
@@ -101,7 +101,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.AdditionalDataOptions>("additionalDataOptions", AdditionalDataOptions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.CloudAttachmentVersion>("cloudAttachmentVersion", CloudAttachmentVersion);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.DocumentVersion>("documentVersion", DocumentVersion);
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/MicrosoftGraphSecurityAddToReviewSetRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/MicrosoftGraphSecurityAddToReviewSetRequestBuilder.cs
index 8ef143656ff..ccbd4481a9a 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/MicrosoftGraphSecurityAddToReviewSetRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityAddToReviewSet/MicrosoftGraphSecurityAddToReviewSetRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityAddToReviewSet.AddToReviewSetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityAddToReviewSet.AddToReviewSetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs
index 0326d37dc3c..7b1dde84dc3 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs
@@ -81,7 +81,7 @@ public ExportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.ExportOptions>("exportOptions", ExportOptions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.ExportFileStructure>("exportStructure", ExportStructure);
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs
index ac629aa857f..052c60ae67f 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/EdiscoveryReviewSetQueryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/EdiscoveryReviewSetQueryItemRequestBuilder.cs
index df450f45d90..6b4945bc9d0 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/EdiscoveryReviewSetQueryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/EdiscoveryReviewSetQueryItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/ApplyTagsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/ApplyTagsPostRequestBody.cs
index 6a131a2edbb..f2824b4f810 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/ApplyTagsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/ApplyTagsPostRequestBody.cs
@@ -69,7 +69,7 @@ public ApplyTagsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityApplyTags.ApplyTagsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityApplyTags.ApplyTagsPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag>("tagsToAdd", TagsToAdd);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag>("tagsToRemove", TagsToRemove);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/MicrosoftGraphSecurityApplyTagsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/MicrosoftGraphSecurityApplyTagsRequestBuilder.cs
index 5f9830274ef..f84c3c91612 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/MicrosoftGraphSecurityApplyTagsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityApplyTags/MicrosoftGraphSecurityApplyTagsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityApplyTags.ApplyTagsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityApplyTags.ApplyTagsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs
index 0e6133dc508..fde738d5052 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/ExportPostRequestBody.cs
@@ -81,7 +81,7 @@ public ExportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody();
         }
         /// <summary>
@@ -104,7 +104,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("description", Description);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.ExportOptions>("exportOptions", ExportOptions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.ExportFileStructure>("exportStructure", ExportStructure);
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs
index 40d6a353f43..10e0aace17e 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/Item/MicrosoftGraphSecurityExport/MicrosoftGraphSecurityExportRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.ReviewSets.Item.Queries.Item.MicrosoftGraphSecurityExport.ExportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/QueriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/QueriesRequestBuilder.cs
index b00878becf1..fd944b91a8b 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/QueriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/Item/Queries/QueriesRequestBuilder.cs
@@ -95,7 +95,7 @@ public QueriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery> PostAsync(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSetQuery body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/ReviewSetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/ReviewSetsRequestBuilder.cs
index 6bf1c4c45db..e1190accb06 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/ReviewSetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/ReviewSets/ReviewSetsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ReviewSetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet> PostAsync(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryReviewSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/AdditionalSourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/AdditionalSourcesRequestBuilder.cs
index dc8aaf8c601..4711af9e6af 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/AdditionalSourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/AdditionalSourcesRequestBuilder.cs
@@ -95,7 +95,7 @@ public AdditionalSourcesRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.Security.DataSource> PostAsync(global::Microsoft.Graph.Models.Security.DataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.DataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/Item/DataSourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/Item/DataSourceItemRequestBuilder.cs
index cae6dbf1cae..fd3cd426d83 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/Item/DataSourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/AdditionalSources/Item/DataSourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.DataSource> PatchAsync(global::Microsoft.Graph.Models.Security.DataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.DataSource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/EdiscoverySearchItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/EdiscoverySearchItemRequestBuilder.cs
index 167f88cd909..c6533216ecd 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/EdiscoverySearchItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/EdiscoverySearchItemRequestBuilder.cs
@@ -153,7 +153,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoverySearch> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoverySearch body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -214,7 +214,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoverySearch body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/ExportReportPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/ExportReportPostRequestBody.cs
index 3e2df825aef..25e0e46c3d2 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/ExportReportPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/ExportReportPostRequestBody.cs
@@ -99,7 +99,7 @@ public ExportReportPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportReport.ExportReportPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportReport.ExportReportPostRequestBody();
         }
         /// <summary>
@@ -125,7 +125,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.AdditionalOptions>("additionalOptions", AdditionalOptions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.CloudAttachmentVersion>("cloudAttachmentVersion", CloudAttachmentVersion);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/MicrosoftGraphSecurityExportReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/MicrosoftGraphSecurityExportReportRequestBuilder.cs
index 500c0cc1b52..3237230b015 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/MicrosoftGraphSecurityExportReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportReport/MicrosoftGraphSecurityExportReportRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportReport.ExportReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportReport.ExportReportPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/ExportResultPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/ExportResultPostRequestBody.cs
index f1718663fc9..ce88ef3d452 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/ExportResultPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/ExportResultPostRequestBody.cs
@@ -111,7 +111,7 @@ public ExportResultPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportResult.ExportResultPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportResult.ExportResultPostRequestBody();
         }
         /// <summary>
@@ -139,7 +139,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.AdditionalOptions>("additionalOptions", AdditionalOptions);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.CloudAttachmentVersion>("cloudAttachmentVersion", CloudAttachmentVersion);
             writer.WriteStringValue("description", Description);
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/MicrosoftGraphSecurityExportResultRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/MicrosoftGraphSecurityExportResultRequestBuilder.cs
index 2fffb92474f..92d5a9bcb5b 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/MicrosoftGraphSecurityExportResultRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityExportResult/MicrosoftGraphSecurityExportResultRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportResult.ExportResultPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityExportResult.ExportResultPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/MicrosoftGraphSecurityPurgeDataRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/MicrosoftGraphSecurityPurgeDataRequestBuilder.cs
index 3fb8f35c04f..0664fdf5e1a 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/MicrosoftGraphSecurityPurgeDataRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/MicrosoftGraphSecurityPurgeDataRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCas
         public async Task PostAsync(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityPurgeData.PurgeDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityPurgeData.PurgeDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/PurgeDataPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/PurgeDataPostRequestBody.cs
index fda32c3ff13..0d6666c648b 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/PurgeDataPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/Item/MicrosoftGraphSecurityPurgeData/PurgeDataPostRequestBody.cs
@@ -49,7 +49,7 @@ public PurgeDataPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityPurgeData.PurgeDataPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Searches.Item.MicrosoftGraphSecurityPurgeData.PurgeDataPostRequestBody();
         }
         /// <summary>
@@ -70,7 +70,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.PurgeAreas>("purgeAreas", PurgeAreas);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.Security.PurgeType>("purgeType", PurgeType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/SearchesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/SearchesRequestBuilder.cs
index 919bb40ae80..8773045b212 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/SearchesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Searches/SearchesRequestBuilder.cs
@@ -95,7 +95,7 @@ public SearchesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoverySearch> PostAsync(global::Microsoft.Graph.Models.Security.EdiscoverySearch body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoverySearch body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Settings/SettingsRequestBuilder.cs
index 405ffdf4a42..4899b28af83 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Settings/SettingsRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryCaseSettings> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoveryCaseSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryCaseSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/Item/EdiscoveryReviewTagItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/Item/EdiscoveryReviewTagItemRequestBuilder.cs
index 89ffe57b8b6..943a6897b92 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/Item/EdiscoveryReviewTagItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/Item/EdiscoveryReviewTagItemRequestBuilder.cs
@@ -111,7 +111,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag> PatchAsync(global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -172,7 +172,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyGetResponse.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyGetResponse.cs
index eb94e4ab30a..a4fb875fd67 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyGetResponse.cs
@@ -37,7 +37,7 @@ public partial class AsHierarchyGetResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Tags.MicrosoftGraphSecurityAsHierarchy.AsHierarchyGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Tags.MicrosoftGraphSecurityAsHierarchy.AsHierarchyGetResponse();
         }
         /// <summary>
@@ -57,7 +57,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyResponse.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyResponse.cs
index 1a92935022b..f15158742c0 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyResponse.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/MicrosoftGraphSecurityAsHierarchy/AsHierarchyResponse.cs
@@ -20,7 +20,7 @@ public partial class AsHierarchyResponse : global::Microsoft.Graph.Security.Case
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Tags.MicrosoftGraphSecurityAsHierarchy.AsHierarchyResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.Cases.EdiscoveryCases.Item.Tags.MicrosoftGraphSecurityAsHierarchy.AsHierarchyResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/TagsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/TagsRequestBuilder.cs
index 8bbcd6a93f3..7a33af04276 100644
--- a/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/TagsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Cases/EdiscoveryCases/Item/Tags/TagsRequestBuilder.cs
@@ -101,7 +101,7 @@ public TagsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag> PostAsync(global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.EdiscoveryReviewTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
index d07a921b26c..c9424dfa424 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TenantDataSecurityAndGovernance> PatchAsync(global::Microsoft.Graph.Models.TenantDataSecurityAndGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TenantDataSecurityAndGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostRequestBody.cs
index 64080517b35..a421563fb4c 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostRequestBody.cs
@@ -53,7 +53,7 @@ public ProcessContentAsyncPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProcessContentBatchRequest>("processContentRequests", ProcessContentRequests);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostResponse.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostResponse.cs
index f3fd15a5845..3f11bbdacb5 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncPostResponse.cs
@@ -36,7 +36,7 @@ public partial class ProcessContentAsyncPostResponse : global::Microsoft.Graph.M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProcessContentResponses>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncRequestBuilder.cs
index 1c72abce65a..2673c15ec37 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncRequestBuilder.cs
@@ -50,7 +50,7 @@ public ProcessContentAsyncRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostResponse> PostAsProcessContentAsyncPostResponseAsync(global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public ProcessContentAsyncRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncResponse> PostAsync(global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncResponse.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncResponse.cs
index d12e1e11e7a..c9a86487f43 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncResponse.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProcessContentAsync/ProcessContentAsyncResponse.cs
@@ -20,7 +20,7 @@ public partial class ProcessContentAsyncResponse : global::Microsoft.Graph.Secur
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProcessContentAsync.ProcessContentAsyncResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
index d35327bf044..67ac658f131 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
@@ -97,7 +97,7 @@ public ComputePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserActivityTypes>("activities", Activities);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceMetadata>("deviceMetadata", DeviceMetadata);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IntegratedApplicationMetadata>("integratedAppMetadata", IntegratedAppMetadata);
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
index daef735ebe6..1781f8bf2d2 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
@@ -36,7 +36,7 @@ public partial class ComputePostResponse : global::Microsoft.Graph.Models.BaseCo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PolicyTenantScope>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
index 807b527bb15..f2337f25d6d 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
@@ -50,7 +50,7 @@ public ComputeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse> PostAsComputePostResponseAsync(global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public ComputeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse> PostAsync(global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
index 9ba96548bd7..6a8b22e9cb5 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
@@ -20,7 +20,7 @@ public partial class ComputeResponse : global::Microsoft.Graph.Security.DataSecu
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
index da2f8774a40..d3fb09d67d6 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TenantProtectionScopeContainer> PatchAsync(global::Microsoft.Graph.Models.TenantProtectionScopeContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TenantProtectionScopeContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
index 21087a40e8f..2eb5af84c48 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
@@ -101,7 +101,7 @@ public ComputeRightsAndInheritancePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("delegatedUserEmail", DelegatedUserEmail);
             writer.WriteStringValue("locale", Locale);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectedContent>("protectedContents", ProtectedContents);
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
index c11f4d8771d..0b201f94caf 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
@@ -52,7 +52,7 @@ public ComputeRightsAndInheritanceRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult> PostAsync(global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
index 59385b12eeb..63c0b573c23 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PatchAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
index d5af2458a81..5b4b244dad2 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
@@ -101,7 +101,7 @@ public ComputeRightsAndInheritancePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("delegatedUserEmail", DelegatedUserEmail);
             writer.WriteStringValue("locale", Locale);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectedContent>("protectedContents", ProtectedContents);
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
index e2d76e856ce..2d857866cda 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
@@ -52,7 +52,7 @@ public ComputeRightsAndInheritanceRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult> PostAsync(global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
index bc1b6948a6d..1f491c5a7c2 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PatchAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
index 9076a524d99..3cfb13c2b9f 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
@@ -114,7 +114,7 @@ public SublabelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PostAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
index 986a499f955..f1117a55ca1 100644
--- a/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
@@ -115,7 +115,7 @@ public SensitivityLabelsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PostAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/HealthIssuesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/HealthIssuesRequestBuilder.cs
index 360590ce4a8..e6a9f18de88 100644
--- a/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/HealthIssuesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/HealthIssuesRequestBuilder.cs
@@ -94,7 +94,7 @@ public HealthIssuesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.HealthIssue> PostAsync(global::Microsoft.Graph.Models.Security.HealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.HealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/Item/HealthIssueItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/Item/HealthIssueItemRequestBuilder.cs
index 80284fb351f..e57eb6578b4 100644
--- a/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/Item/HealthIssueItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Identities/HealthIssues/Item/HealthIssueItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HealthIssue> PatchAsync(global::Microsoft.Graph.Models.Security.HealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HealthIssue body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Identities/IdentitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Identities/IdentitiesRequestBuilder.cs
index f857e3a8e9d..83046fdd365 100644
--- a/src/Microsoft.Graph/Generated/Security/Identities/IdentitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Identities/IdentitiesRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.IdentityContainer> PatchAsync(global::Microsoft.Graph.Models.Security.IdentityContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.IdentityContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Identities/Sensors/Item/SensorItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Identities/Sensors/Item/SensorItemRequestBuilder.cs
index d64778acac6..1f742962c35 100644
--- a/src/Microsoft.Graph/Generated/Security/Identities/Sensors/Item/SensorItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Identities/Sensors/Item/SensorItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.Sensor> PatchAsync(global::Microsoft.Graph.Models.Security.Sensor body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Sensor body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Identities/Sensors/SensorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Identities/Sensors/SensorsRequestBuilder.cs
index 29b781d2de9..c620e8babf9 100644
--- a/src/Microsoft.Graph/Generated/Security/Identities/Sensors/SensorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Identities/Sensors/SensorsRequestBuilder.cs
@@ -112,7 +112,7 @@ public SensorsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.Security.Sensor> PostAsync(global::Microsoft.Graph.Models.Security.Sensor body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.Sensor body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Incidents/IncidentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Incidents/IncidentsRequestBuilder.cs
index ccc2f7f3865..4b9c4133ec1 100644
--- a/src/Microsoft.Graph/Generated/Security/Incidents/IncidentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Incidents/IncidentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public IncidentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.Incident> PostAsync(global::Microsoft.Graph.Models.Security.Incident body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.Incident body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Incidents/Item/Alerts/Item/Comments/CommentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Incidents/Item/Alerts/Item/Comments/CommentsRequestBuilder.cs
index 64cbdab85a0..67b67faf78a 100644
--- a/src/Microsoft.Graph/Generated/Security/Incidents/Item/Alerts/Item/Comments/CommentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Incidents/Item/Alerts/Item/Comments/CommentsRequestBuilder.cs
@@ -57,7 +57,7 @@ public CommentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<List<global::Microsoft.Graph.Models.Security.AlertComment>> PostAsync(List<global::Microsoft.Graph.Models.Security.AlertComment> body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -81,7 +81,7 @@ public RequestInformation ToPostRequestInformation(List<global::Microsoft.Graph.
         public RequestInformation ToPostRequestInformation(List<global::Microsoft.Graph.Models.Security.AlertComment> body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Incidents/Item/IncidentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Incidents/Item/IncidentItemRequestBuilder.cs
index 0d8b81dafc5..b03f8a0520f 100644
--- a/src/Microsoft.Graph/Generated/Security/Incidents/Item/IncidentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Incidents/Item/IncidentItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.Incident> PatchAsync(global::Microsoft.Graph.Models.Security.Incident body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Incident body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Authorities/AuthoritiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Authorities/AuthoritiesRequestBuilder.cs
index 27e91e4d931..a4925dbac15 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Authorities/AuthoritiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Authorities/AuthoritiesRequestBuilder.cs
@@ -95,7 +95,7 @@ public AuthoritiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.AuthorityTemplate> PostAsync(global::Microsoft.Graph.Models.Security.AuthorityTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.AuthorityTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Authorities/Item/AuthorityTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Authorities/Item/AuthorityTemplateItemRequestBuilder.cs
index e38acfefd4e..6d98e71d247 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Authorities/Item/AuthorityTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Authorities/Item/AuthorityTemplateItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.AuthorityTemplate> PatchAsync(global::Microsoft.Graph.Models.Security.AuthorityTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.AuthorityTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Categories/CategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Categories/CategoriesRequestBuilder.cs
index 999ef57175e..00840b81666 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Categories/CategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Categories/CategoriesRequestBuilder.cs
@@ -95,7 +95,7 @@ public CategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.CategoryTemplate> PostAsync(global::Microsoft.Graph.Models.Security.CategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.CategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/CategoryTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/CategoryTemplateItemRequestBuilder.cs
index dd752c0fd55..803f6cc9bd9 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/CategoryTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/CategoryTemplateItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.CategoryTemplate> PatchAsync(global::Microsoft.Graph.Models.Security.CategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.CategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/Item/SubcategoryTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/Item/SubcategoryTemplateItemRequestBuilder.cs
index ff5ba73d41c..af8cff6ee07 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/Item/SubcategoryTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/Item/SubcategoryTemplateItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.SubcategoryTemplate> PatchAsync(global::Microsoft.Graph.Models.Security.SubcategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.SubcategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/SubcategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/SubcategoriesRequestBuilder.cs
index ff0c23bdf0b..4203df86982 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/SubcategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Categories/Item/Subcategories/SubcategoriesRequestBuilder.cs
@@ -95,7 +95,7 @@ public SubcategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Security.SubcategoryTemplate> PostAsync(global::Microsoft.Graph.Models.Security.SubcategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.SubcategoryTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Citations/CitationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Citations/CitationsRequestBuilder.cs
index 5c5850536bf..2c6963d2815 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Citations/CitationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Citations/CitationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CitationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.CitationTemplate> PostAsync(global::Microsoft.Graph.Models.Security.CitationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.CitationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Citations/Item/CitationTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Citations/Item/CitationTemplateItemRequestBuilder.cs
index 24f1eb59a1c..57655e1cc4f 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Citations/Item/CitationTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Citations/Item/CitationTemplateItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.CitationTemplate> PatchAsync(global::Microsoft.Graph.Models.Security.CitationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.CitationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Departments/DepartmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Departments/DepartmentsRequestBuilder.cs
index 836617496ed..e5748dcfc18 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Departments/DepartmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Departments/DepartmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DepartmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.DepartmentTemplate> PostAsync(global::Microsoft.Graph.Models.Security.DepartmentTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.DepartmentTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/Departments/Item/DepartmentTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/Departments/Item/DepartmentTemplateItemRequestBuilder.cs
index 7bfe191a8a4..ec5494ee931 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/Departments/Item/DepartmentTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/Departments/Item/DepartmentTemplateItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.DepartmentTemplate> PatchAsync(global::Microsoft.Graph.Models.Security.DepartmentTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.DepartmentTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/FilePlanReferencesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/FilePlanReferencesRequestBuilder.cs
index 295a613a517..883394bad28 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/FilePlanReferencesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/FilePlanReferencesRequestBuilder.cs
@@ -95,7 +95,7 @@ public FilePlanReferencesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate> PostAsync(global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/Item/FilePlanReferenceTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/Item/FilePlanReferenceTemplateItemRequestBuilder.cs
index 5debe51c473..4a9984462d5 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/Item/FilePlanReferenceTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/FilePlanReferences/Item/FilePlanReferenceTemplateItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate> PatchAsync(global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.FilePlanReferenceTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/LabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/LabelsRequestBuilder.cs
index 59f5e802f82..7dbd6d0dfe0 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/LabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/LabelsRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.LabelsRoot> PatchAsync(global::Microsoft.Graph.Models.Security.LabelsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.LabelsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/Descriptors/DescriptorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/Descriptors/DescriptorsRequestBuilder.cs
index 51309f49401..cd64e73da9d 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/Descriptors/DescriptorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/Descriptors/DescriptorsRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.FilePlanDescriptor> PatchAsync(global::Microsoft.Graph.Models.Security.FilePlanDescriptor body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.FilePlanDescriptor body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/DispositionReviewStagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/DispositionReviewStagesRequestBuilder.cs
index 4519b1880ca..aebf7648191 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/DispositionReviewStagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/DispositionReviewStagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DispositionReviewStagesRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.Security.DispositionReviewStage> PostAsync(global::Microsoft.Graph.Models.Security.DispositionReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.DispositionReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/Item/DispositionReviewStageStageNumberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/Item/DispositionReviewStageStageNumberItemRequestBuilder.cs
index 7919b9d5f0d..e3b90a16ae2 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/Item/DispositionReviewStageStageNumberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/DispositionReviewStages/Item/DispositionReviewStageStageNumberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.DispositionReviewStage> PatchAsync(global::Microsoft.Graph.Models.Security.DispositionReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.DispositionReviewStage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/RetentionLabelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/RetentionLabelItemRequestBuilder.cs
index 1ad7ac07fb6..9f9a573277f 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/RetentionLabelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/Item/RetentionLabelItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.RetentionLabel> PatchAsync(global::Microsoft.Graph.Models.Security.RetentionLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.RetentionLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/RetentionLabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/RetentionLabelsRequestBuilder.cs
index 822b881249a..d253248584b 100644
--- a/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/RetentionLabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Labels/RetentionLabels/RetentionLabelsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RetentionLabelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.Security.RetentionLabel> PostAsync(global::Microsoft.Graph.Models.Security.RetentionLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.RetentionLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/MicrosoftGraphSecurityRunHuntingQueryRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/MicrosoftGraphSecurityRunHuntingQueryRequestBuilder.cs
index aec487b9926..d093dd9ef69 100644
--- a/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/MicrosoftGraphSecurityRunHuntingQueryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/MicrosoftGraphSecurityRunHuntingQueryRequestBuilder.cs
@@ -51,7 +51,7 @@ public MicrosoftGraphSecurityRunHuntingQueryRequestBuilder(string rawUrl, IReque
         public async Task<global::Microsoft.Graph.Models.Security.HuntingQueryResults> PostAsync(global::Microsoft.Graph.Security.MicrosoftGraphSecurityRunHuntingQuery.RunHuntingQueryPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Secur
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Security.MicrosoftGraphSecurityRunHuntingQuery.RunHuntingQueryPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/RunHuntingQueryPostRequestBody.cs b/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/RunHuntingQueryPostRequestBody.cs
index f7d09341783..480d15b46fc 100644
--- a/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/RunHuntingQueryPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Security/MicrosoftGraphSecurityRunHuntingQuery/RunHuntingQueryPostRequestBody.cs
@@ -68,7 +68,7 @@ public RunHuntingQueryPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Security.MicrosoftGraphSecurityRunHuntingQuery.RunHuntingQueryPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Security.MicrosoftGraphSecurityRunHuntingQuery.RunHuntingQueryPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("query", Query);
             writer.WriteStringValue("timespan", Timespan);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/Item/SecureScoreControlProfileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/Item/SecureScoreControlProfileItemRequestBuilder.cs
index 317ef3af2b1..6996099e250 100644
--- a/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/Item/SecureScoreControlProfileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/Item/SecureScoreControlProfileItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SecureScoreControlProfile> PatchAsync(global::Microsoft.Graph.Models.SecureScoreControlProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SecureScoreControlProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/SecureScoreControlProfilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/SecureScoreControlProfilesRequestBuilder.cs
index f91bd02a247..3f06c3ca08a 100644
--- a/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/SecureScoreControlProfilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SecureScoreControlProfiles/SecureScoreControlProfilesRequestBuilder.cs
@@ -94,7 +94,7 @@ public SecureScoreControlProfilesRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.SecureScoreControlProfile> PostAsync(global::Microsoft.Graph.Models.SecureScoreControlProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SecureScoreControlProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SecureScores/Item/SecureScoreItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SecureScores/Item/SecureScoreItemRequestBuilder.cs
index d4506c3933a..41018722a06 100644
--- a/src/Microsoft.Graph/Generated/Security/SecureScores/Item/SecureScoreItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SecureScores/Item/SecureScoreItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SecureScore> PatchAsync(global::Microsoft.Graph.Models.SecureScore body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SecureScore body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SecureScores/SecureScoresRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SecureScores/SecureScoresRequestBuilder.cs
index 188d462ec4a..ec1a5b78196 100644
--- a/src/Microsoft.Graph/Generated/Security/SecureScores/SecureScoresRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SecureScores/SecureScoresRequestBuilder.cs
@@ -94,7 +94,7 @@ public SecureScoresRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.SecureScore> PostAsync(global::Microsoft.Graph.Models.SecureScore body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SecureScore body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SecurityRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SecurityRequestBuilder.cs
index 382e6eb01fd..14ebcc4bcd3 100644
--- a/src/Microsoft.Graph/Generated/Security/SecurityRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SecurityRequestBuilder.cs
@@ -164,7 +164,7 @@ public SecurityRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Security.Security> PatchAsync(global::Microsoft.Graph.Models.Security.Security body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -206,7 +206,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Security body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 4d84062a343..b66348637e1 100644
--- a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Approvers/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 9654f6b2021..e458d2a0c31 100644
--- a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Collaborators/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs
index a2ba6c74dba..5eb8ae56ef7 100644
--- a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/Item/AuthoredNoteItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AuthoredNote> PatchAsync(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs
index 74249c7fc97..a3ec125643c 100644
--- a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/Notes/NotesRequestBuilder.cs
@@ -93,7 +93,7 @@ public NotesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.AuthoredNote> PostAsync(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthoredNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs
index 7df9225e296..9a8cd175ae7 100644
--- a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/Item/SubjectRightsRequestItemRequestBuilder.cs
@@ -154,7 +154,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SubjectRightsRequest> PatchAsync(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -215,7 +215,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs
index 47f534d5af6..e4f591a2e12 100644
--- a/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/SubjectRightsRequests/SubjectRightsRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubjectRightsRequestsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.SubjectRightsRequest> PostAsync(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SubjectRightsRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/ArticleIndicatorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/ArticleIndicatorsRequestBuilder.cs
index b04b0e1cdaa..7c2b5cc2b8e 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/ArticleIndicatorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/ArticleIndicatorsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ArticleIndicatorsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.Security.ArticleIndicator> PostAsync(global::Microsoft.Graph.Models.Security.ArticleIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.ArticleIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/Item/ArticleIndicatorItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/Item/ArticleIndicatorItemRequestBuilder.cs
index 7f6680c0f58..221b54af304 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/Item/ArticleIndicatorItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ArticleIndicators/Item/ArticleIndicatorItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.ArticleIndicator> PatchAsync(global::Microsoft.Graph.Models.Security.ArticleIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.ArticleIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/ArticlesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/ArticlesRequestBuilder.cs
index 4a5b014e60e..7658bf829b9 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/ArticlesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/ArticlesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ArticlesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Security.Article> PostAsync(global::Microsoft.Graph.Models.Security.Article body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.Article body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/Item/ArticleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/Item/ArticleItemRequestBuilder.cs
index b7790860240..e68757d2edf 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/Item/ArticleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Articles/Item/ArticleItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.Article> PatchAsync(global::Microsoft.Graph.Models.Security.Article body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Article body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/HostComponentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/HostComponentsRequestBuilder.cs
index 7c227db6a67..f4f330499cd 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/HostComponentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/HostComponentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostComponentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.Security.HostComponent> PostAsync(global::Microsoft.Graph.Models.Security.HostComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.HostComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/Item/HostComponentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/Item/HostComponentItemRequestBuilder.cs
index 4a91dc64601..fb45af6686f 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/Item/HostComponentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostComponents/Item/HostComponentItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HostComponent> PatchAsync(global::Microsoft.Graph.Models.Security.HostComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HostComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/HostCookiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/HostCookiesRequestBuilder.cs
index 963fcfc0fca..7dc52cc1970 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/HostCookiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/HostCookiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostCookiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.HostCookie> PostAsync(global::Microsoft.Graph.Models.Security.HostCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.HostCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/Item/HostCookieItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/Item/HostCookieItemRequestBuilder.cs
index fc574b583d2..a6905f70419 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/Item/HostCookieItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostCookies/Item/HostCookieItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HostCookie> PatchAsync(global::Microsoft.Graph.Models.Security.HostCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HostCookie body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/HostPairsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/HostPairsRequestBuilder.cs
index 8c4cd8e99e4..82968d69c22 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/HostPairsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/HostPairsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostPairsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.HostPair> PostAsync(global::Microsoft.Graph.Models.Security.HostPair body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.HostPair body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/Item/HostPairItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/Item/HostPairItemRequestBuilder.cs
index ccf4f7d1da0..82c9fb546d6 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/Item/HostPairItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPairs/Item/HostPairItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HostPair> PatchAsync(global::Microsoft.Graph.Models.Security.HostPair body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HostPair body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/HostPortsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/HostPortsRequestBuilder.cs
index 45696a8b5f1..4bed78d10f8 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/HostPortsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/HostPortsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostPortsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.HostPort> PostAsync(global::Microsoft.Graph.Models.Security.HostPort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.HostPort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/Item/HostPortItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/Item/HostPortItemRequestBuilder.cs
index abc2a6fed97..9aba0f5bf99 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/Item/HostPortItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostPorts/Item/HostPortItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HostPort> PatchAsync(global::Microsoft.Graph.Models.Security.HostPort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HostPort body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/HostSslCertificatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/HostSslCertificatesRequestBuilder.cs
index 22ab450a3dd..dac4b9a56ff 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/HostSslCertificatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/HostSslCertificatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostSslCertificatesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.Security.HostSslCertificate> PostAsync(global::Microsoft.Graph.Models.Security.HostSslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.HostSslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/Item/HostSslCertificateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/Item/HostSslCertificateItemRequestBuilder.cs
index c4add1b1836..e845d0f1f65 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/Item/HostSslCertificateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostSslCertificates/Item/HostSslCertificateItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HostSslCertificate> PatchAsync(global::Microsoft.Graph.Models.Security.HostSslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HostSslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/HostTrackersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/HostTrackersRequestBuilder.cs
index cd2393f8d5b..2f3b969990e 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/HostTrackersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/HostTrackersRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostTrackersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.HostTracker> PostAsync(global::Microsoft.Graph.Models.Security.HostTracker body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.HostTracker body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/Item/HostTrackerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/Item/HostTrackerItemRequestBuilder.cs
index 77573fa5b84..46efe9b1a7e 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/Item/HostTrackerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/HostTrackers/Item/HostTrackerItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HostTracker> PatchAsync(global::Microsoft.Graph.Models.Security.HostTracker body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HostTracker body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/HostsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/HostsRequestBuilder.cs
index 37cd2613e76..dc63e4ad7a4 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/HostsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/HostsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Security.Host> PostAsync(global::Microsoft.Graph.Models.Security.Host body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.Host body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/HostItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/HostItemRequestBuilder.cs
index 098843aaa69..a5721a53d3f 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/HostItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/HostItemRequestBuilder.cs
@@ -175,7 +175,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.Host> PatchAsync(global::Microsoft.Graph.Models.Security.Host body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -236,7 +236,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Host body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/Reputation/ReputationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/Reputation/ReputationRequestBuilder.cs
index 615bc3e1b14..dffc54e17c0 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/Reputation/ReputationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Hosts/Item/Reputation/ReputationRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.HostReputation> PatchAsync(global::Microsoft.Graph.Models.Security.HostReputation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.HostReputation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/IntelProfilesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/IntelProfilesRequestBuilder.cs
index e04f3aa6033..a24de66eb70 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/IntelProfilesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/IntelProfilesRequestBuilder.cs
@@ -94,7 +94,7 @@ public IntelProfilesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Security.IntelligenceProfile> PostAsync(global::Microsoft.Graph.Models.Security.IntelligenceProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.IntelligenceProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/Item/IntelligenceProfileItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/Item/IntelligenceProfileItemRequestBuilder.cs
index 01bceb519ea..250732f6b8e 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/Item/IntelligenceProfileItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelProfiles/Item/IntelligenceProfileItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.IntelligenceProfile> PatchAsync(global::Microsoft.Graph.Models.Security.IntelligenceProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.IntelligenceProfile body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/IntelligenceProfileIndicatorsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/IntelligenceProfileIndicatorsRequestBuilder.cs
index e7f3132c121..f5d7b9b7aa6 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/IntelligenceProfileIndicatorsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/IntelligenceProfileIndicatorsRequestBuilder.cs
@@ -93,7 +93,7 @@ public IntelligenceProfileIndicatorsRequestBuilder(string rawUrl, IRequestAdapte
         public async Task<global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator> PostAsync(global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/Item/IntelligenceProfileIndicatorItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/Item/IntelligenceProfileIndicatorItemRequestBuilder.cs
index e3e94ac06ed..8abbb672026 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/Item/IntelligenceProfileIndicatorItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/IntelligenceProfileIndicators/Item/IntelligenceProfileIndicatorItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator> PatchAsync(global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.IntelligenceProfileIndicator body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/Item/PassiveDnsRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/Item/PassiveDnsRecordItemRequestBuilder.cs
index dd55b70a5e9..e802f57c0f9 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/Item/PassiveDnsRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/Item/PassiveDnsRecordItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.PassiveDnsRecord> PatchAsync(global::Microsoft.Graph.Models.Security.PassiveDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.PassiveDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/PassiveDnsRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/PassiveDnsRecordsRequestBuilder.cs
index 23febe8e97a..5733476b681 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/PassiveDnsRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/PassiveDnsRecords/PassiveDnsRecordsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PassiveDnsRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.Security.PassiveDnsRecord> PostAsync(global::Microsoft.Graph.Models.Security.PassiveDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.PassiveDnsRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/Item/SslCertificateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/Item/SslCertificateItemRequestBuilder.cs
index b9268fb8832..d40048be6c8 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/Item/SslCertificateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/Item/SslCertificateItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.SslCertificate> PatchAsync(global::Microsoft.Graph.Models.Security.SslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.SslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/SslCertificatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/SslCertificatesRequestBuilder.cs
index 3d63d97f779..44099c8c99e 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/SslCertificatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/SslCertificates/SslCertificatesRequestBuilder.cs
@@ -94,7 +94,7 @@ public SslCertificatesRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.Security.SslCertificate> PostAsync(global::Microsoft.Graph.Models.Security.SslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.SslCertificate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/Item/SubdomainItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/Item/SubdomainItemRequestBuilder.cs
index 3f907f97116..b9410582cb6 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/Item/SubdomainItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/Item/SubdomainItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.Subdomain> PatchAsync(global::Microsoft.Graph.Models.Security.Subdomain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Subdomain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/SubdomainsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/SubdomainsRequestBuilder.cs
index 0fd065e7c7e..e3b065b2cca 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/SubdomainsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Subdomains/SubdomainsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubdomainsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.Subdomain> PostAsync(global::Microsoft.Graph.Models.Security.Subdomain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.Subdomain body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ThreatIntelligenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ThreatIntelligenceRequestBuilder.cs
index 7c22ef3cbc3..8a4330419e6 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ThreatIntelligenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/ThreatIntelligenceRequestBuilder.cs
@@ -198,7 +198,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.ThreatIntelligence> PatchAsync(global::Microsoft.Graph.Models.Security.ThreatIntelligence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -259,7 +259,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.ThreatIntelligence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/ComponentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/ComponentsRequestBuilder.cs
index 080e1b4e593..6a18b75e979 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/ComponentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/ComponentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ComponentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Security.VulnerabilityComponent> PostAsync(global::Microsoft.Graph.Models.Security.VulnerabilityComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.VulnerabilityComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/Item/VulnerabilityComponentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/Item/VulnerabilityComponentItemRequestBuilder.cs
index 339da2018e0..c08e0ceceee 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/Item/VulnerabilityComponentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/Components/Item/VulnerabilityComponentItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.VulnerabilityComponent> PatchAsync(global::Microsoft.Graph.Models.Security.VulnerabilityComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.VulnerabilityComponent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/VulnerabilityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/VulnerabilityItemRequestBuilder.cs
index 689b21629d8..9707f884b73 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/VulnerabilityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/Item/VulnerabilityItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.Vulnerability> PatchAsync(global::Microsoft.Graph.Models.Security.Vulnerability body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.Vulnerability body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/VulnerabilitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/VulnerabilitiesRequestBuilder.cs
index ec9e74a53cd..b677cf9befd 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/VulnerabilitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/Vulnerabilities/VulnerabilitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public VulnerabilitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.Security.Vulnerability> PostAsync(global::Microsoft.Graph.Models.Security.Vulnerability body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.Vulnerability body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/Item/WhoisHistoryRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/Item/WhoisHistoryRecordItemRequestBuilder.cs
index 91c1ffb0082..ca0ddc65085 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/Item/WhoisHistoryRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/Item/WhoisHistoryRecordItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.WhoisHistoryRecord> PatchAsync(global::Microsoft.Graph.Models.Security.WhoisHistoryRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.WhoisHistoryRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/WhoisHistoryRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/WhoisHistoryRecordsRequestBuilder.cs
index c550a5f6b7e..201466c9686 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/WhoisHistoryRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisHistoryRecords/WhoisHistoryRecordsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WhoisHistoryRecordsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.Security.WhoisHistoryRecord> PostAsync(global::Microsoft.Graph.Models.Security.WhoisHistoryRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.WhoisHistoryRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/Item/WhoisRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/Item/WhoisRecordItemRequestBuilder.cs
index 6250eb1b983..20c42d3850f 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/Item/WhoisRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/Item/WhoisRecordItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.WhoisRecord> PatchAsync(global::Microsoft.Graph.Models.Security.WhoisRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.WhoisRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/WhoisRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/WhoisRecordsRequestBuilder.cs
index fe2cc7eec4b..240636ae39b 100644
--- a/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/WhoisRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/ThreatIntelligence/WhoisRecords/WhoisRecordsRequestBuilder.cs
@@ -94,7 +94,7 @@ public WhoisRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Security.WhoisRecord> PostAsync(global::Microsoft.Graph.Models.Security.WhoisRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.WhoisRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/Item/RetentionEventTypeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/Item/RetentionEventTypeItemRequestBuilder.cs
index 81e0fec2bde..d00a3effe20 100644
--- a/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/Item/RetentionEventTypeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/Item/RetentionEventTypeItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.RetentionEventType> PatchAsync(global::Microsoft.Graph.Models.Security.RetentionEventType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.RetentionEventType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/RetentionEventTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/RetentionEventTypesRequestBuilder.cs
index e3b8e32fd6a..db5d329d141 100644
--- a/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/RetentionEventTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/TriggerTypes/RetentionEventTypes/RetentionEventTypesRequestBuilder.cs
@@ -95,7 +95,7 @@ public RetentionEventTypesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.Security.RetentionEventType> PostAsync(global::Microsoft.Graph.Models.Security.RetentionEventType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.RetentionEventType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/TriggerTypes/TriggerTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/TriggerTypes/TriggerTypesRequestBuilder.cs
index a0efc54abb3..25a3396d244 100644
--- a/src/Microsoft.Graph/Generated/Security/TriggerTypes/TriggerTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/TriggerTypes/TriggerTypesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.TriggerTypesRoot> PatchAsync(global::Microsoft.Graph.Models.Security.TriggerTypesRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.TriggerTypesRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/Item/RetentionEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/Item/RetentionEventItemRequestBuilder.cs
index 959686167be..32e6505bc60 100644
--- a/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/Item/RetentionEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/Item/RetentionEventItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.RetentionEvent> PatchAsync(global::Microsoft.Graph.Models.Security.RetentionEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.RetentionEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/RetentionEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/RetentionEventsRequestBuilder.cs
index 1a4c5ae4c19..746ce7b78ab 100644
--- a/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/RetentionEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Triggers/RetentionEvents/RetentionEventsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RetentionEventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.Security.RetentionEvent> PostAsync(global::Microsoft.Graph.Models.Security.RetentionEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Security.RetentionEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Security/Triggers/TriggersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Security/Triggers/TriggersRequestBuilder.cs
index 9f120fbd007..6e297764482 100644
--- a/src/Microsoft.Graph/Generated/Security/Triggers/TriggersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Security/Triggers/TriggersRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Security.TriggersRoot> PatchAsync(global::Microsoft.Graph.Models.Security.TriggersRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Security.TriggersRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaGetResponse.cs
index 5ae7989e271..e85a1736b01 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ServicePrincipal>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaResponse.cs
index d721fa70554..3eac2cbe1ff 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.ServicePrincipals.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index a9f267aef91..fb5af0d501b 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index c6a43ba410a..c3d5da3c8e3 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 7eabeb5da8c..290d905579e 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index 0e4c9601f72..1e56698511e 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostRequestBody.cs
index a6a0e660d4f..62f45f16e5d 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostResponse.cs
index b579682001c..0c3a3a27978 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsRequestBuilder.cs
index b687192efb2..7299b19beb3 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsResponse.cs
index 0a43bd3a470..28934e3b288 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.ServicePrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyPostRequestBody.cs
index f6c56228bb7..fc5602f19f8 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyPostRequestBody.cs
@@ -85,7 +85,7 @@ public AddKeyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.AddKey.AddKeyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.AddKey.AddKeyPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.KeyCredential>("keyCredential", KeyCredential);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PasswordCredential>("passwordCredential", PasswordCredential);
             writer.WriteStringValue("proof", Proof);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyRequestBuilder.cs
index ec6891c7742..3801d5ebbb7 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddKey/AddKeyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddKeyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.KeyCredential> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.AddKey.AddKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.AddKey.AddKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordPostRequestBody.cs
index 1ba170adb0e..bbb4ae0e896 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.AddPassword.AddPasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.AddPassword.AddPasswordPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PasswordCredential>("passwordCredential", PasswordCredential);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordRequestBuilder.cs
index d98418125ef..bd6184e67e2 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddPassword/AddPasswordRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddPasswordRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.PasswordCredential> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.AddPassword.AddPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.AddPassword.AddPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificatePostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificatePostRequestBody.cs
index 19e12d842e8..c7fc29cf0f9 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificatePostRequestBody.cs
@@ -58,7 +58,7 @@ public AddTokenSigningCertificatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.AddTokenSigningCertificate.AddTokenSigningCertificatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.AddTokenSigningCertificate.AddTokenSigningCertificatePostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificateRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificateRequestBuilder.cs
index 34dba406a80..ebb413b045b 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AddTokenSigningCertificate/AddTokenSigningCertificateRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddTokenSigningCertificateRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.SelfSignedCertificate> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.AddTokenSigningCertificate.AddTokenSigningCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.AddTokenSigningCertificate.AddTokenSigningCertificatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/AppRoleAssignedToRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/AppRoleAssignedToRequestBuilder.cs
index 1cf09457dd7..68f17590975 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/AppRoleAssignedToRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/AppRoleAssignedToRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppRoleAssignedToRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PostAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/Item/AppRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/Item/AppRoleAssignmentItemRequestBuilder.cs
index 3d6da98659f..df2bf2f3d94 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/Item/AppRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignedTo/Item/AppRoleAssignmentItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
index 5c18d60670c..c0905c70bc5 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppRoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PostAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
index c78f6056cad..68d242d3365 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 30d89cf2820..437de31a464 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 9e4b4ef6404..953dbfbd76a 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index c545afa90ef..b7b3f0f251d 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index 43013ed4566..7b6ac32c029 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Service
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index 76f58971c09..5312cb0f6ae 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index abf8afc2247..1a487c2c247 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 3846da2d806..dc93805ffda 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index c4983629c26..084abcf8f42 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Servic
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ClaimsMappingPolicies/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ClaimsMappingPolicies/Ref/RefRequestBuilder.cs
index b090ad2df77..2450201fd0d 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ClaimsMappingPolicies/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ClaimsMappingPolicies/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/servicePrincipals/{servicePrincipal%2Did}/claimsMappingPolicies/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/DelegatedPermissionClassificationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/DelegatedPermissionClassificationsRequestBuilder.cs
index d201b01dfd8..618ee561b5e 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/DelegatedPermissionClassificationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/DelegatedPermissionClassificationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DelegatedPermissionClassificationsRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.DelegatedPermissionClassification> PostAsync(global::Microsoft.Graph.Models.DelegatedPermissionClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DelegatedPermissionClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/Item/DelegatedPermissionClassificationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/Item/DelegatedPermissionClassificationItemRequestBuilder.cs
index 9a51460211b..51206071388 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/Item/DelegatedPermissionClassificationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/DelegatedPermissionClassifications/Item/DelegatedPermissionClassificationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DelegatedPermissionClassification> PatchAsync(global::Microsoft.Graph.Models.DelegatedPermissionClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DelegatedPermissionClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/EndpointsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/EndpointsRequestBuilder.cs
index 80f8e854a49..6e862077850 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/EndpointsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/EndpointsRequestBuilder.cs
@@ -93,7 +93,7 @@ public EndpointsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Endpoint> PostAsync(global::Microsoft.Graph.Models.Endpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Endpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/Item/EndpointItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/Item/EndpointItemRequestBuilder.cs
index d9606f0fb34..72c168acd28 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/Item/EndpointItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Endpoints/Item/EndpointItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Endpoint> PatchAsync(global::Microsoft.Graph.Models.Endpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Endpoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs
index 588a58ac9db..51ddea7fca9 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/FederatedIdentityCredentialsRequestBuilder.cs
@@ -93,7 +93,7 @@ public FederatedIdentityCredentialsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.FederatedIdentityCredential> PostAsync(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs
index d4fb3a3293d..243d3c5d9a9 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentials/Item/FederatedIdentityCredentialItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FederatedIdentityCredential> PatchAsync(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs
index 2664f65eb56..6c9c7df550d 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/FederatedIdentityCredentialsWithName/FederatedIdentityCredentialsWithNameRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FederatedIdentityCredential> PatchAsync(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FederatedIdentityCredential body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index e146bb279e9..b51b992a01b 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 0ca0fab960e..0f07faaa92a 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index eb363d25336..e76aec75cf0 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index 182b208e0e2..6d0d2cfda71 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.ServicePr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index db0e2f44ad7..e069a2796ce 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index 2d8e9ee43a1..2db57844405 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 09be2b6ce69..39eced45ea1 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index b503e1cf174..6728b716518 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.ServiceP
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/HomeRealmDiscoveryPolicies/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/HomeRealmDiscoveryPolicies/Ref/RefRequestBuilder.cs
index a3567bcf5a5..fa0252bb968 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/HomeRealmDiscoveryPolicies/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/HomeRealmDiscoveryPolicies/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/servicePrincipals/{servicePrincipal%2Did}/homeRealmDiscoveryPolicies/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Owners/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Owners/Ref/RefRequestBuilder.cs
index 56798ee9b7f..153cfd6004a 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Owners/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Owners/Ref/RefRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/servicePrincipals/{servicePrincipal%2Did}/owners/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/RemoteDesktopSecurityConfigurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/RemoteDesktopSecurityConfigurationRequestBuilder.cs
index f6cf3597d27..315d1729bde 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/RemoteDesktopSecurityConfigurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/RemoteDesktopSecurityConfigurationRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RemoteDesktopSecurityConfiguration> PatchAsync(global::Microsoft.Graph.Models.RemoteDesktopSecurityConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RemoteDesktopSecurityConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/Item/TargetDeviceGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/Item/TargetDeviceGroupItemRequestBuilder.cs
index 3ba9b432d27..e886b001963 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/Item/TargetDeviceGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/Item/TargetDeviceGroupItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TargetDeviceGroup> PatchAsync(global::Microsoft.Graph.Models.TargetDeviceGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TargetDeviceGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/TargetDeviceGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/TargetDeviceGroupsRequestBuilder.cs
index 3723aa37d1f..120b9d41772 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/TargetDeviceGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoteDesktopSecurityConfiguration/TargetDeviceGroups/TargetDeviceGroupsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TargetDeviceGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.TargetDeviceGroup> PostAsync(global::Microsoft.Graph.Models.TargetDeviceGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TargetDeviceGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyPostRequestBody.cs
index b3b337fb766..2c387040554 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyPostRequestBody.cs
@@ -58,7 +58,7 @@ public RemoveKeyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.RemoveKey.RemoveKeyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.RemoveKey.RemoveKeyPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteGuidValue("keyId", KeyId);
             writer.WriteStringValue("proof", Proof);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyRequestBuilder.cs
index 2cab13e726c..807243691fb 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemoveKey/RemoveKeyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Remov
         public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.RemoveKey.RemoveKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.RemoveKey.RemoveKeyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordPostRequestBody.cs
index c1901818766..d8459871e41 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordPostRequestBody.cs
@@ -42,7 +42,7 @@ public RemovePasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.RemovePassword.RemovePasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.RemovePassword.RemovePasswordPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteGuidValue("keyId", KeyId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordRequestBuilder.cs
index 4a99c994e11..91e094a309b 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/RemovePassword/RemovePasswordRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Remov
         public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.RemovePassword.RemovePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.RemovePassword.RemovePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ServicePrincipalItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ServicePrincipalItemRequestBuilder.cs
index 2f2c076aec4..314c9cb41f4 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ServicePrincipalItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/ServicePrincipalItemRequestBuilder.cs
@@ -278,7 +278,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServicePrincipal> PatchAsync(global::Microsoft.Graph.Models.ServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -339,7 +339,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs
index 13d1992d735..57616407b92 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenPostRequestBody.cs
@@ -53,7 +53,7 @@ public AcquireAccessTokenPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("credentials", Credentials);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs
index e725ac4ab83..9ae8677737c 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/AcquireAccessToken/AcquireAccessTokenRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synch
         public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.AcquireAccessToken.AcquireAccessTokenPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs
index 02433b17f16..c264fb0a5c3 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/BulkUploadRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BulkUpload> PatchAsync(global::Microsoft.Graph.Models.BulkUpload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BulkUpload body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs
index af0df38508f..822a69b1f16 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/BulkUpload/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs
index 2567ffa19a3..4f17cf4c4e3 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandPostRequestBody.cs
@@ -53,7 +53,7 @@ public ProvisionOnDemandPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationJobApplicationParameters>("parameters", Parameters);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs
index 2934ef1d032..bf441440603 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ProvisionOnDemand/ProvisionOnDemandRequestBuilder.cs
@@ -52,7 +52,7 @@ public ProvisionOnDemandRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.StringKeyStringValuePair> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ProvisionOnDemand.ProvisionOnDemandPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs
index 516290da7d9..e9ffd70f62f 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartPostRequestBody.cs
@@ -53,7 +53,7 @@ public RestartPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.SynchronizationJobRestartCriteria>("criteria", Criteria);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs
index 2e3358e6e50..cb6d5fe148a 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Restart/RestartRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synch
         public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Restart.RestartPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs
index b0f09e5da05..4e123a31431 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/DirectoriesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DirectoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PostAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
index 9a154ba31a7..dd5f0a67d1e 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PatchAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
index bd1736ccd48..0d946d82b79 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterOperatorsGetResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterOperatorSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
index 1ff37c3ba9a..7a9a3bf795d 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterOperatorsResponse : global::Microsoft.Graph.ServicePr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.FilterOperators.FilterOperatorsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs
index 40ee32ec348..1c99abb81a6 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FunctionsGetResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeMappingFunctionSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs
index bd308dc32df..33428ebc41c 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/Functions/FunctionsResponse.cs
@@ -20,7 +20,7 @@ public partial class FunctionsResponse : global::Microsoft.Graph.ServicePrincipa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.Functions.FunctionsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
index e50723e6502..a63408e5a84 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
@@ -85,7 +85,7 @@ public ParseExpressionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("expression", Expression);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttributeDefinition>("targetAttributeDefinition", TargetAttributeDefinition);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExpressionInputObject>("testInputObject", TestInputObject);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
index 75a3cc47e7d..1c2f75e6dd7 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
@@ -52,7 +52,7 @@ public ParseExpressionRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.ParseExpressionResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs
index c39b66ff50c..26ba67ec4b9 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/Schema/SchemaRequestBuilder.cs
@@ -122,7 +122,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationSchema> PatchAsync(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -183,7 +183,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs
index fb6a0c97de5..7b96ae88421 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/SynchronizationJobItemRequestBuilder.cs
@@ -140,7 +140,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationJob> PatchAsync(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -201,7 +201,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
index bf7ca6c480f..5dcbf28c3f1 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
@@ -91,7 +91,7 @@ public ValidateCredentialsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationIdentifier", ApplicationIdentifier);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("credentials", Credentials);
             writer.WriteStringValue("templateId", TemplateId);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
index 37db25f2727..8cb118c0708 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/Item/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synch
         public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.Item.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/JobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/JobsRequestBuilder.cs
index c168228b6f8..abb5f59ca7a 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/JobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/JobsRequestBuilder.cs
@@ -101,7 +101,7 @@ public JobsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.SynchronizationJob> PostAsync(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SynchronizationJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
index 6d8b6270379..2b379ab58b7 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsPostRequestBody.cs
@@ -91,7 +91,7 @@ public ValidateCredentialsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("applicationIdentifier", ApplicationIdentifier);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("credentials", Credentials);
             writer.WriteStringValue("templateId", TemplateId);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
index 465b16c1a9d..87f4c93b325 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Jobs/ValidateCredentials/ValidateCredentialsRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synch
         public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Jobs.ValidateCredentials.ValidateCredentialsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutRequestBody.cs
index 6ee32e48dbf..b81db44a7bd 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutRequestBody.cs
@@ -53,7 +53,7 @@ public SecretsPutRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutResponse.cs
index 78507446f23..6b6f2644d53 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsPutResponse.cs
@@ -53,7 +53,7 @@ public SecretsPutResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutResponse();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.SynchronizationSecretKeyStringValuePair>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsRequestBuilder.cs
index 333383ed2ee..3c98c6d05b8 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsRequestBuilder.cs
@@ -57,7 +57,7 @@ public SecretsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutResponse> PutAsSecretsPutResponseAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -84,7 +84,7 @@ public SecretsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsResponse> PutAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -107,7 +107,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Servic
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsPutRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsResponse.cs
index 623fee186e3..54cefcc217b 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Secrets/SecretsResponse.cs
@@ -20,7 +20,7 @@ public partial class SecretsResponse : global::Microsoft.Graph.ServicePrincipals
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Secrets.SecretsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/SynchronizationRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/SynchronizationRequestBuilder.cs
index 1222ab26d35..7391c0a993e 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/SynchronizationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/SynchronizationRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Synchronization> PutAsync(global::Microsoft.Graph.Models.Synchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.Synchronization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs
index ce41f587389..3e96093beb2 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/DirectoriesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DirectoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PostAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
index 232cd7fc868..767799e54af 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Directories/Item/DirectoryDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DirectoryDefinition> PatchAsync(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DirectoryDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
index 3270670c739..95d03809a04 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FilterOperatorsGetResponse : global::Microsoft.Graph.Models
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.FilterOperatorSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
index 5b24bb1052a..fe88d56a695 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/FilterOperators/FilterOperatorsResponse.cs
@@ -20,7 +20,7 @@ public partial class FilterOperatorsResponse : global::Microsoft.Graph.ServicePr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.FilterOperators.FilterOperatorsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs
index 3512d12e9d4..252e23b8a48 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsGetResponse.cs
@@ -36,7 +36,7 @@ public partial class FunctionsGetResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttributeMappingFunctionSchema>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs
index 3e97580f2db..29da36365b2 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/Functions/FunctionsResponse.cs
@@ -20,7 +20,7 @@ public partial class FunctionsResponse : global::Microsoft.Graph.ServicePrincipa
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.Functions.FunctionsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
index 10bec559c2c..5c6cc41fd85 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionPostRequestBody.cs
@@ -85,7 +85,7 @@ public ParseExpressionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("expression", Expression);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttributeDefinition>("targetAttributeDefinition", TargetAttributeDefinition);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ExpressionInputObject>("testInputObject", TestInputObject);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
index 0cfddee1159..7b1d6f18b6e 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/ParseExpression/ParseExpressionRequestBuilder.cs
@@ -52,7 +52,7 @@ public ParseExpressionRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.ParseExpressionResponse> PostAsync(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.Item.Synchronization.Templates.Item.Schema.ParseExpression.ParseExpressionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs
index d9fc502f91a..5f648a43eb2 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/Schema/SchemaRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationSchema> PatchAsync(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationSchema body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs
index b4c99a46949..54def6a2fd1 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/Item/SynchronizationTemplateItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SynchronizationTemplate> PatchAsync(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/TemplatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/TemplatesRequestBuilder.cs
index 29ae431c9bd..c8c5a6ec5f3 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/TemplatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/Synchronization/Templates/TemplatesRequestBuilder.cs
@@ -94,7 +94,7 @@ public TemplatesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.SynchronizationTemplate> PostAsync(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SynchronizationTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs
index a6b49466e11..fa29a8d26bd 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenIssuancePolicies/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/servicePrincipals/{servicePrincipal%2Did}/tokenIssuancePolicies/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs
index 4170c67c5cf..f89319d71bc 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/Item/TokenLifetimePolicies/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body,
         public async Task PostAsync(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ReferenceCreate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/servicePrincipals/{servicePrincipal%2Did}/tokenLifetimePolicies/$ref", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/ServicePrincipalsRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/ServicePrincipalsRequestBuilder.cs
index 6c74cf0c99f..3bac13f6ba5 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/ServicePrincipalsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/ServicePrincipalsRequestBuilder.cs
@@ -119,7 +119,7 @@ public ServicePrincipalsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.ServicePrincipal> PostAsync(global::Microsoft.Graph.Models.ServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 087e02eefb1..e081483f070 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.ServicePrincipals.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.ServicePrincipals.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index 891e3bcde16..3c348978679 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipals/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.ValidatePr
         public async Task PostAsync(global::Microsoft.Graph.ServicePrincipals.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Servi
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.ServicePrincipals.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/ServicePrincipalsWithAppId/ServicePrincipalsWithAppIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/ServicePrincipalsWithAppId/ServicePrincipalsWithAppIdRequestBuilder.cs
index 4e8e6c59d3f..79be2a39fc1 100644
--- a/src/Microsoft.Graph/Generated/ServicePrincipalsWithAppId/ServicePrincipalsWithAppIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/ServicePrincipalsWithAppId/ServicePrincipalsWithAppIdRequestBuilder.cs
@@ -101,7 +101,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServicePrincipal> PatchAsync(global::Microsoft.Graph.Models.ServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServicePrincipal body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 163d12ac741..78df41f1d00 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/DriveItem/Content/ContentRequestBuilder.cs
index 687102840fa..547c6ea4fba 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/Items/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/Items/Item/Content/ContentRequestBuilder.cs
index b7a818327b3..f5dfc046a28 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/Items/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/Items/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 907be600282..4b43e81392a 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/ColumnsRequestBuilder.cs
index e210d573b41..df294d849c9 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index 0010e0c857e..6a0a98ed6de 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
index f3401dc0c2d..4032065d295 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
index 286d4a62907..05ab5451102 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Share
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
index d39679d7b57..59a4753c713 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentTypeId", ContentTypeId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
index 4e071297691..5b84ab91a27 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Share
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Shares.Item.List.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/ContentTypesRequestBuilder.cs
index 96e1310089e..d85e79c1e61 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/ContentTypesRequestBuilder.cs
@@ -111,7 +111,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
index a1cac0dded3..eedbf06b5bf 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetCompatibleHubContentTypesGetResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
index 712d74a9850..3ff4132db35 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetCompatibleHubContentTypesResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
index 0361de3694a..90775c27d9c 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
@@ -58,7 +58,7 @@ public AssociateWithHubSitesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("hubSiteUrls", HubSiteUrls);
             writer.WriteBoolValue("propagateToExistingLists", PropagateToExistingLists);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
index 0d1206b49c5..a5fb2910e1c 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Shares.Item.List.ContentType
         public async Task PostAsync(global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Share
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
index 2d9dd1b45d5..678361de909 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnLinksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PostAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
index 80402929c64..c87792ea1de 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PatchAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
index 34466163c64..c9600f5ca01 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index acc6dd5efba..6cba2b335a9 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
index e45e1e8cab8..dcb7faeed69 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
@@ -156,7 +156,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentType> PatchAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -217,7 +217,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
index 027ec8608f2..08901af0e15 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
@@ -69,7 +69,7 @@ public CopyToDefaultContentLocationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("destinationFileName", DestinationFileName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemReference>("sourceFile", SourceFile);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
index 9bd7917be4a..962ccc9ae85 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Shares.Item.List.ContentType
         public async Task PostAsync(global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Share
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
index df0d516d9fb..8d29411d3d6 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
@@ -42,7 +42,7 @@ public IsPublishedGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.IsPublished.IsPublishedGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.IsPublished.IsPublishedGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
index dc1647387e2..d8c968023aa 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
@@ -20,7 +20,7 @@ public partial class IsPublishedResponse : global::Microsoft.Graph.Shares.Item.L
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.IsPublished.IsPublishedResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.ContentTypes.Item.IsPublished.IsPublishedResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index ab6d3231aeb..026051ea960 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaGetResponse.cs
index 81843c2168e..ff5e0279ff6 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaResponse.cs
index 422f5ccdf30..92373914148 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Shares.Item.List.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
index 902c3f5b2fe..00c7ecaa38e 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaWithTokenGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.DeltaWithToken.DeltaWithTokenGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.DeltaWithToken.DeltaWithTokenGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs
index 756742e1199..40d0731440f 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/DeltaWithToken/DeltaWithTokenResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaWithTokenResponse : global::Microsoft.Graph.Shares.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.DeltaWithToken.DeltaWithTokenResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.DeltaWithToken.DeltaWithTokenResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
index c9163947b75..9c5fdf4b60d 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
@@ -135,7 +135,7 @@ public CreateLinkPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Shares.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("password", Password);
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
index 239bb4a4d12..bd2d367ab4b 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
@@ -51,7 +51,7 @@ public CreateLinkRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Shares.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Share
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Shares.Item.List.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index ea3d9c27f48..5f4d952ca42 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
index 44351f53ae3..87cff201687 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DocumentSetVersionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PostAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
index 4ba52dfba74..acc0facd947 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PatchAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
index f9b881b1177..e60762ba5ef 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
index 4d529b82073..bb77e2ebc7c 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs
index 31c11e40c38..2839f147de0 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 7937afc9c8e..d3b18a24ab3 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index e1e05329c3a..d4229999268 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index 084b0f2fe8b..fe8721b7787 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index e9513aa958f..5aaaeb9f9d0 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.List.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 37c3ee83df8..fb400f8ff8a 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/ListItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/ListItemItemRequestBuilder.cs
index 9cd0e2ee987..f60accf375a 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/ListItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/ListItemItemRequestBuilder.cs
@@ -165,7 +165,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItem> PatchAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -226,7 +226,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
index 81f6b4cfee5..88389aecaa4 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
index f96b7357fab..4de216032ce 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PatchAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs
index 504fc34a134..a83454f70c6 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/Item/Versions/VersionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PostAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/ItemsRequestBuilder.cs
index fb71afc1c0e..7e1a6329d3f 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Items/ItemsRequestBuilder.cs
@@ -104,7 +104,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ListItem> PostAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -146,7 +146,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 0a7ee61922c..12f74b926c0 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/ListRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/ListRequestBuilder.cs
index 79927cc9b2d..c84a263ca59 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/ListRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/ListRequestBuilder.cs
@@ -144,7 +144,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.List> PatchAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -205,7 +205,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
index fb10fbc3349..8ef749d01b4 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/OperationsRequestBuilder.cs
index 7f610953ae5..381435c6f2e 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
index 6b4b19b4cd2..370d28e2125 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Subscription> PatchAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs
index 51d2d7deea5..671a6228976 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/List/Subscriptions/SubscriptionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubscriptionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Subscription> PostAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostRequestBody.cs b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostRequestBody.cs
index fdf41785c3a..7c16f35f63e 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostRequestBody.cs
@@ -69,7 +69,7 @@ public GrantPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRecipient>("recipients", Recipients);
             writer.WriteCollectionOfPrimitiveValues<string>("roles", Roles);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostResponse.cs
index 02ce43c227e..d8156f2a5f1 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GrantPostResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantRequestBuilder.cs
index bf3b5ff8242..5d67322b50a 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantRequestBuilder.cs
@@ -51,7 +51,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostResponse> PostAsGrantPostResponseAsync(global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantResponse> PostAsync(global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Share
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantResponse.cs b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantResponse.cs
index fa84858e574..a12473b1791 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantResponse.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/Permission/Grant/GrantResponse.cs
@@ -20,7 +20,7 @@ public partial class GrantResponse : global::Microsoft.Graph.Shares.Item.Permiss
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Shares.Item.Permission.Grant.GrantResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/Permission/PermissionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/Permission/PermissionRequestBuilder.cs
index 9930870a73b..04c482fa056 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/Permission/PermissionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/Permission/PermissionRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Permission> PatchAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/Root/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/Root/Content/ContentRequestBuilder.cs
index f9f31b3dd00..0ff99f5eb55 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/Root/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/Root/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/Item/SharedDriveItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/Item/SharedDriveItemItemRequestBuilder.cs
index ebf549bf5d2..3751842be8c 100644
--- a/src/Microsoft.Graph/Generated/Shares/Item/SharedDriveItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/Item/SharedDriveItemItemRequestBuilder.cs
@@ -151,7 +151,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedDriveItem> PatchAsync(global::Microsoft.Graph.Models.SharedDriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -212,7 +212,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedDriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Shares/SharesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Shares/SharesRequestBuilder.cs
index da9ac9f8331..80ec19e30f7 100644
--- a/src/Microsoft.Graph/Generated/Shares/SharesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Shares/SharesRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.SharedDriveItem> PostAsync(global::Microsoft.Graph.Models.SharedDriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedDriveItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Add/AddPostRequestBody.cs
index 56018db438e..d76cba3f1dc 100644
--- a/src/Microsoft.Graph/Generated/Sites/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Sites/Add/AddPostResponse.cs
index 8491ed431bc..26282bb531d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Add/AddRequestBuilder.cs
index 3aec74bb4b9..b668787d7c2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Sites.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Sites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Sites.Add.AddResponse> PostAsync(global::Microsoft.Graph.Sites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Sites/Add/AddResponse.cs
index 634106d476c..8462b6fdb82 100644
--- a/src/Microsoft.Graph/Generated/Sites/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Sites.Add.AddPostResp
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Delta/DeltaGetResponse.cs
index b0eb892f539..438218f1737 100644
--- a/src/Microsoft.Graph/Generated/Sites/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Sites/Delta/DeltaResponse.cs
index 465ab65832d..ebd5896a80e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Sites.Delta.DeltaGe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesGetResponse.cs
index 7d0501900fd..fbfe8528c64 100644
--- a/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllSitesGetResponse : global::Microsoft.Graph.Models.Bas
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.GetAllSites.GetAllSitesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.GetAllSites.GetAllSitesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesResponse.cs b/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesResponse.cs
index ebbb79f7bfc..826045bd599 100644
--- a/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/GetAllSites/GetAllSitesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllSitesResponse : global::Microsoft.Graph.Sites.GetAllS
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.GetAllSites.GetAllSitesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.GetAllSites.GetAllSitesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/AnalyticsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/AnalyticsRequestBuilder.cs
index 0b41367d297..28a3277543d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/AnalyticsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/AnalyticsRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemAnalytics> PatchAsync(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
index c3db74d3b12..195a22f3269 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/ActivitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ItemActivity> PostAsync(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
index 71ccee6ad15..b0e06c7b7a0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
index 0c93ab49b20..490c4f24499 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/Activities/Item/ItemActivityItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemActivity> PatchAsync(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
index a4d859ca5d6..cd7ead94c18 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/Item/ItemActivityStatItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemActivityStat> PatchAsync(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
index 554c6eb771c..b545eba50e1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Analytics/ItemActivityStats/ItemActivityStatsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemActivityStatsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.ItemActivityStat> PostAsync(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ItemActivityStat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Columns/ColumnsRequestBuilder.cs
index d1a5f2ec385..5413a71d588 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Columns/ColumnsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index b4904c147ce..b939ff27cc3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
index ef212968aac..7190714fd31 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
index 022f08bb29e..d6f59e775ab 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
index 0bef9775c04..1f5fbe81968 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentTypeId", ContentTypeId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
index 9fcef7674a7..a9a21682a0f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs
index a8a3e81d820..756bdd1ef93 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/ContentTypesRequestBuilder.cs
@@ -113,7 +113,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -155,7 +155,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
index e9c94a15917..629d94f4e91 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetCompatibleHubContentTypesGetResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
index 570b250db22..2804706510c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetCompatibleHubContentTypesResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
index ee8c7001459..a3b65a353d4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
@@ -58,7 +58,7 @@ public AssociateWithHubSitesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("hubSiteUrls", HubSiteUrls);
             writer.WriteBoolValue("propagateToExistingLists", PropagateToExistingLists);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
index 2466d6c1b25..8bdd4e2bcfc 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.ContentTypes.Item
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
index 91352b0dfac..19b3e66668c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnLinksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PostAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
index ebf97c03f24..81bb73cb60f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PatchAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
index 35364e91039..1650a04a7f3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index e702cfb3d22..32ead641516 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
index 602d3e16165..27206d5f805 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
@@ -159,7 +159,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentType> PatchAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -220,7 +220,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
index d7d5518135b..6e43a619328 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
@@ -69,7 +69,7 @@ public CopyToDefaultContentLocationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("destinationFileName", DestinationFileName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemReference>("sourceFile", SourceFile);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
index db5fbac3ebd..51f65e8aa0f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.ContentTypes.Item
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
index d5fd11a35e8..1775d5640e2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
@@ -42,7 +42,7 @@ public IsPublishedGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
index e70a6f23279..f3dabeb324d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
@@ -20,7 +20,7 @@ public partial class IsPublishedResponse : global::Microsoft.Graph.Sites.Item.Co
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.ContentTypes.Item.IsPublished.IsPublishedResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 3ac8671c61c..86e04625826 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 3083bf8d07c..d7d2c3909bb 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index a7b8668afcd..132446c289c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index fab7f61f34e..50443828880 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index b789e6989a2..62b95440fac 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
index 264da6f7b4d..8663c3898f9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetApplicableContentTypesForListWithListIdGetResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
index acf2757eff8..bdfa5fad7ee 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
@@ -20,7 +20,7 @@ public partial class GetApplicableContentTypesForListWithListIdResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs
index 009dcbd057e..eb8b99b56a7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Analytics/AnalyticsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemAnalytics> PatchAsync(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemAnalytics body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs
index 459ecfdb851..7e86fe065ef 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Columns/ColumnsRequestBuilder.cs
@@ -74,7 +74,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs
index 395d6eace01..056936517b2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/ContentTypes/ContentTypesRequestBuilder.cs
@@ -74,7 +74,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 69b7e563e0c..c19b9314f7f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index 0ff3d2ded9e..164d2b3ac64 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index 4541bdd9832..26374d1809a 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index 710116a0cfe..9f58faf7c7b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
index cf7156e35ef..21a04774540 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetApplicableContentTypesForListWithListIdGetResponse : glo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
index fed3e8d2c55..a236cf191a5 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/GetApplicableContentTypesForListWithListId/GetApplicableContentTypesForListWithListIdResponse.cs
@@ -20,7 +20,7 @@ public partial class GetApplicableContentTypesForListWithListIdResponse : global
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.GetByPathWithPath.GetApplicableContentTypesForListWithListId.GetApplicableContentTypesForListWithListIdResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs
index 4a3b94c9eb7..775aebcabb1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Lists/ListsRequestBuilder.cs
@@ -74,7 +74,7 @@ public ListsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.List> PostAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs
index 73fa6a58dee..6e27bd26954 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Onenote/OnenoteRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Onenote> PatchAsync(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs
index 61b860be74b..738ce3beb10 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Operations/OperationsRequestBuilder.cs
@@ -74,7 +74,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs
index d8bf16f8029..dbcad8c33b1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Pages/PagesRequestBuilder.cs
@@ -74,7 +74,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.BaseSitePage> PostAsync(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs
index 29c2cec1055..5b261fa89c9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/Permissions/PermissionsRequestBuilder.cs
@@ -74,7 +74,7 @@ public PermissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs
index 5ff7c7a6a9c..00d37e28586 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStore/TermStoreRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PatchAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs
index 240ad2fd961..1bc17e50db5 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/GetByPathWithPath/TermStores/TermStoresRequestBuilder.cs
@@ -74,7 +74,7 @@ public TermStoresRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PostAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 39a25df87b0..d1e0ccb69bf 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs
index fa9456bf108..e18d37695ea 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/ColumnsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index e7437067991..b92a1176b09 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
index 5095bb57f08..d28a7a47872 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentType", ContentType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
index 7858865df06..82ee997b34f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopy/AddCopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopy.AddCopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
index 76ff0ba299d..2047bd1c369 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubPostRequestBody.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("contentTypeId", ContentTypeId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
index b8b203da538..4508dfc4930 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/AddCopyFromContentTypeHub/AddCopyFromContentTypeHubRequestBuilder.cs
@@ -52,7 +52,7 @@ public AddCopyFromContentTypeHubRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.AddCopyFromContentTypeHub.AddCopyFromContentTypeHubPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs
index 84bf6f27ead..a4a4fedd8ab 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/ContentTypesRequestBuilder.cs
@@ -112,7 +112,7 @@ public ContentTypesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContentType> PostAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -154,7 +154,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
index fba23dd9901..9df7561a7c3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetCompatibleHubContentTypesGetResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContentType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
index 5687bc27d42..1e10ed84906 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/GetCompatibleHubContentTypes/GetCompatibleHubContentTypesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetCompatibleHubContentTypesResponse : global::Microsoft.Gr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.GetCompatibleHubContentTypes.GetCompatibleHubContentTypesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
index 11998cc877b..3381529ac10 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesPostRequestBody.cs
@@ -58,7 +58,7 @@ public AssociateWithHubSitesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("hubSiteUrls", HubSiteUrls);
             writer.WriteBoolValue("propagateToExistingLists", PropagateToExistingLists);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
index 6d08880b395..8e78bee36e1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/AssociateWithHubSites/AssociateWithHubSitesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Lists.Item.Conten
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.AssociateWithHubSites.AssociateWithHubSitesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
index 4281b89be0b..c72e6da3bba 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/ColumnLinksRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnLinksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PostAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
index e70d6675654..138033630e4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ColumnLinks/Item/ColumnLinkItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnLink> PatchAsync(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnLink body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
index 78ee54e9e7a..af9ce715e5b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index 708a9a745bf..f483962c2de 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
index 991ee3c39d6..114f655e2cf 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/ContentTypeItemRequestBuilder.cs
@@ -156,7 +156,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentType> PatchAsync(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -217,7 +217,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentType body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
index 1be69e84199..e9cd25e947d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationPostRequestBody.cs
@@ -69,7 +69,7 @@ public CopyToDefaultContentLocationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("destinationFileName", DestinationFileName);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemReference>("sourceFile", SourceFile);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
index 37e91f08048..028cf82e91f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/CopyToDefaultContentLocation/CopyToDefaultContentLocationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Lists.Item.Conten
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.CopyToDefaultContentLocation.CopyToDefaultContentLocationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
index ddc7eb6e504..35310ca7333 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedGetResponse.cs
@@ -42,7 +42,7 @@ public IsPublishedGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
index 0fa506d1bf8..4d7f2df298e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ContentTypes/Item/IsPublished/IsPublishedResponse.cs
@@ -20,7 +20,7 @@ public partial class IsPublishedResponse : global::Microsoft.Graph.Sites.Item.Li
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.ContentTypes.Item.IsPublished.IsPublishedResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 39a6505cd31..b1b6d100e95 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs
index 15c69466df8..30c5473ad3b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs
index 00b30ece063..21cecd00541 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Sites.Item.Lists.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
index e40fe56411d..c3c81965293 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaWithTokenGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ListItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs
index 449f3035f97..a1689cd50f7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/DeltaWithToken/DeltaWithTokenResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaWithTokenResponse : global::Microsoft.Graph.Sites.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.DeltaWithToken.DeltaWithTokenResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
index f4ad2f6dd5c..6344258cda0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkPostRequestBody.cs
@@ -135,7 +135,7 @@ public CreateLinkPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody();
         }
         /// <summary>
@@ -162,7 +162,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("expirationDateTime", ExpirationDateTime);
             writer.WriteStringValue("message", Message);
             writer.WriteStringValue("password", Password);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
index 2787fbae3fd..66f15fc0d70 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreateLink/CreateLinkRequestBuilder.cs
@@ -51,7 +51,7 @@ public CreateLinkRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.CreateLink.CreateLinkPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 9abbb2fef2f..655eae6e42d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
index b243eadedd4..7d5f12d3c42 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/DocumentSetVersionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DocumentSetVersionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PostAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
index b780506c280..c83abd3fed0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/DocumentSetVersionItemRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DocumentSetVersion> PatchAsync(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DocumentSetVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
index e3c3304d456..41dc0867623 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DocumentSetVersions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
index fa088b51474..33ab9c68c17 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/DriveItem/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs
index 3bd8869ec10..e8bd3e2f9f6 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Fields/FieldsRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
index 3f8bec10a80..86624d2c818 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalGetResponse : global::Microsoft.Grap
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
index ccfaeb07024..4494e8a3ef5 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByInterval/GetActivitiesByIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalResponse : global::Microsoft.Graph.S
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByInterval.GetActivitiesByIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
index 12a83de70b9..df0f828f514 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ItemActivityStat>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
index fbe35531e39..3e811b34c70 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval/GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse.cs
@@ -20,7 +20,7 @@ public partial class GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWith
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Lists.Item.Items.Item.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithInterval.GetActivitiesByIntervalWithStartDateTimeWithEndDateTimeWithIntervalResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index b80b9f36a68..6afa27a37f8 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs
index 913c6f4954c..97bd4d7b62a 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/ListItemItemRequestBuilder.cs
@@ -167,7 +167,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItem> PatchAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -228,7 +228,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
index dd3261d01da..3022f4207b7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/Fields/FieldsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FieldValueSet> PatchAsync(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FieldValueSet body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
index b7b46c2258b..4f60e78b11a 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/Item/ListItemVersionItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PatchAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs
index b0081a6c817..da08d0cdd95 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/Item/Versions/VersionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public VersionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ListItemVersion> PostAsync(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItemVersion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs
index b34c75efc77..68ab37e2df6 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Items/ItemsRequestBuilder.cs
@@ -106,7 +106,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ListItem> PostAsync(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ListItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 722f35be1ce..e541706314b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ListItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ListItemRequestBuilder.cs
index 1ed1cda92af..85750e726a8 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ListItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/ListItemRequestBuilder.cs
@@ -105,8 +105,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
             await RequestAdapter.SendNoContentAsync(requestInfo, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Get a list of rich long-running operations associated with a list.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/list-list-operations?view=graph-rest-1.0" />
+        /// Returns the metadata for a list.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/list-get?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.List"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -145,7 +145,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.List> PatchAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -173,7 +173,7 @@ public RequestInformation ToDeleteRequestInformation(Action<RequestConfiguration
             return requestInfo;
         }
         /// <summary>
-        /// Get a list of rich long-running operations associated with a list.
+        /// Returns the metadata for a list.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -206,7 +206,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -231,7 +231,7 @@ public partial class ListItemRequestBuilderDeleteRequestConfiguration : RequestC
         {
         }
         /// <summary>
-        /// Get a list of rich long-running operations associated with a list.
+        /// Returns the metadata for a list.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class ListItemRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
index ebb68576fa0..258d026362e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs
index 85d73061a39..490a5241275 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
index f134c87823e..8db72de6493 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Subscription> PatchAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs
index 6552ac4d129..c6df231eee9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/Item/Subscriptions/SubscriptionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SubscriptionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Subscription> PostAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Lists/ListsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Lists/ListsRequestBuilder.cs
index b6c3e65391a..466a4b80d39 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Lists/ListsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Lists/ListsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ListsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.List> PostAsync(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.List body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
index 38b7cac88ca..6f87d01138d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("webUrl", WebUrl);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
index af481c93df2..b168a219389 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.CopyNotebookModel> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
index 46c9d6dc461..dfd26cfca1e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksGetResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecentNotebook>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
index d41b2c15695..cb1fc443cb9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
@@ -20,7 +20,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
index 973d2f431e0..5daf83b66ca 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("notebookFolder", NotebookFolder);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
index b9f383c6910..ad7a722382b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
index e1fa2767724..7ac44168fe2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Notebook> PatchAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index 3f9c9f5b119..19a0576844f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index b311cd7d2bb..ca45b003d51 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index b948460db39..b5c06f3774f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 535b600d403..c50eb5cac70 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 53d0625488a..42bb0057e20 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 188f39aa47d..69219135364 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index e6c74846949..6a31c714673 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index e9c3ff97ab0..5e1ea16182b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index ccbcd539990..8f56f62caad 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index c2dc534b180..32dc5b9f796 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 7981d70ee05..50afd5e78a9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 0cbe7633a3a..3c53552f975 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 3af00677c53..afb790d47ac 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index 7d9a14785fd..c4074ce828b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
index 693f490d2d5..190c2b9d0b3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 5f430a19e2e..6e43584b41a 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index e1416eeb8fa..bcddd9bf041 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 752b124d09f..d5a035f93ac 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index eba2f03c3b5..acbf9283b2a 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index f8d95fccccc..a63c6ac5f69 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index a3f1e991acb..d467e75359c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index adad3ec6dc8..8a73e5cead5 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 12c05b31048..ebddac1bbfb 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index cc7cb113125..98577b40483 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 52591a7dab8..f23326928a7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 91e0dc4d94e..91863c85fa0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index e1d683f593f..62b9474b3eb 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
index 19def08576d..32e33b2edd3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
index 6cce64fcb85..b7ac41b4008 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
@@ -90,7 +90,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="includePersonalNotebooks">Usage: includePersonalNotebooks={includePersonalNotebooks}</param>
         public global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder GetRecentNotebooksWithIncludePersonalNotebooks(bool? includePersonalNotebooks)
         {
-            _ = includePersonalNotebooks ?? throw new ArgumentNullException(nameof(includePersonalNotebooks));
+            if(ReferenceEquals(includePersonalNotebooks, null)) throw new ArgumentNullException(nameof(includePersonalNotebooks));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder(PathParameters, RequestAdapter, includePersonalNotebooks);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Notebook> PostAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/OnenoteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/OnenoteRequestBuilder.cs
index c8a03096f0b..aad7610621d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/OnenoteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/OnenoteRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Onenote> PatchAsync(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
index b296c214fdd..7f7ea046c12 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PatchAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs
index b01c379d636..52f3b1285e7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
index f72072c00b6..dcc16acf971 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 63a184a2d13..330226f7c92 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 995acee2688..17cfc61198d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
index 4738249abc6..31d9571388f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 042564d4e94..bd173a51bb2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 87c39e55696..8769390d33e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Pages.Ite
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs
index 0b85a8d1c68..b32eaf9768c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
index e096acbd994..9a24231c46f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
index e99542d0335..897ddeb6f45 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PatchAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs
index 5976c372fc1..71f8037eef1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PostAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index 668d95c30b1..a7d6eaf3933 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index a9e5e091c8e..3d7b9c22062 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 20f2838615d..2abdf83dd98 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index d6ed42ca8a1..eac9ab06551 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 5faee3e4a58..fd46d5252d2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index f3d447107b6..11af4a91035 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 58dca192615..4178100c401 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 32b70d40ec5..1e03fb8040f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 5032e73f475..519eee95d72 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index f7607986957..02e1dbae209 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index a6fb9027f32..edb1e2daa10 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 7b942e1b63d..1eace1df016 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.SectionGr
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 584d18b710f..45026c9765b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index a3663262cc7..348c05e3303 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
index 7d639047986..47227c487b1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 272e895388e..e24084ebc08 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 60f3a84b5ac..51d937e7be0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index e244866520b..cba7e975d80 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index b5aa02214c6..907ac8315a8 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 98ad104f6e8..773d668f5b9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 6e6675eb486..0889cde0cb0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -74,7 +74,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 8f1331ec7af..ed65e3b0726 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 50bd7a27f54..9ef5e30e7ae 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 569a26d348d..eb69090f83d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index f5a528a97ca..87dd89cd313 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 610d75a7ccc..663bd9fd9b7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Sections.
         public async Task PostAsync(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
index 10ca18c48c7..5ff432fa510 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs
index d95978eec81..a104de1b5e8 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Onenote/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
index 6056c75fc07..cf29cb81ab8 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Operations/Item/RichLongRunningOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Operations/OperationsRequestBuilder.cs
index 3d80cdbf2fe..38997218785 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Operations/OperationsRequestBuilder.cs
@@ -94,7 +94,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.RichLongRunningOperation> PostAsync(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RichLongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs
index a73589a8e21..f7c942047dc 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/BaseSitePageItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BaseSitePage> PatchAsync(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 135aaa61384..430106bb75e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs
index 387b3c4059a..9df2c52e4d7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/CanvasLayoutRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CanvasLayout> PatchAsync(global::Microsoft.Graph.Models.CanvasLayout body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CanvasLayout body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs
index 1e162361cd9..601727857af 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/HorizontalSectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HorizontalSectionsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.HorizontalSection> PostAsync(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs
index 51026e09fee..3776c68a750 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.HorizontalSectionColumn> PostAsync(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs
index 132de60a524..870e80cfa1a 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/HorizontalSectionColumnItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.HorizontalSectionColumn> PatchAsync(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.HorizontalSectionColumn body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs
index 76fae7dce95..6c2d265ee2d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/Item/WebPartItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WebPart> PatchAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs
index 58d0a5acafb..fff4b90ff02 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/Columns/Item/Webparts/WebpartsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WebpartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WebPart> PostAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs
index 18f43c8a255..deb520e6adf 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/HorizontalSections/Item/HorizontalSectionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.HorizontalSection> PatchAsync(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.HorizontalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs
index 873bdac353f..cf0de1fa7af 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/VerticalSectionRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VerticalSection> PatchAsync(global::Microsoft.Graph.Models.VerticalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VerticalSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs
index 4ee2e863218..67a441f6834 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/Item/WebPartItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WebPart> PatchAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs
index 730b694f54e..d443951480e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CanvasLayout/VerticalSection/Webparts/WebpartsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WebpartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WebPart> PostAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 04396a86646..5c4aa38ae4d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index d91d66a445c..d729a44fabf 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs
index 92553695bd3..2c7b8b857c9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/Item/WebPartItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WebPart> PatchAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs
index d4dc412c7dc..696f4b5dbe3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/GraphSitePage/WebParts/WebPartsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WebPartsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.WebPart> PostAsync(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WebPart body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 01a364207da..d7c44beb056 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Pages/PagesRequestBuilder.cs
index eeb7414ff8d..38a7c109cda 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Pages/PagesRequestBuilder.cs
@@ -101,7 +101,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.BaseSitePage> PostAsync(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BaseSitePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
index ab50886d851..bcaa9cf0fda 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
@@ -69,7 +69,7 @@ public GrantPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRecipient>("recipients", Recipients);
             writer.WriteCollectionOfPrimitiveValues<string>("roles", Roles);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs
index 9a829a43590..1be626234b4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GrantPostResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
index 84bf1aaa921..a8ce3e59d65 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
@@ -51,7 +51,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostResponse> PostAsGrantPostResponseAsync(global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantResponse> PostAsync(global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantResponse.cs b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantResponse.cs
index 22e4a6aae38..320206b6244 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/Grant/GrantResponse.cs
@@ -20,7 +20,7 @@ public partial class GrantResponse : global::Microsoft.Graph.Sites.Item.Permissi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Item.Permissions.Item.Grant.GrantResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs
index 56bb4285c5b..f4eeaf10139 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/Item/PermissionItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Permission> PatchAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/PermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/PermissionsRequestBuilder.cs
index f592f315942..99bb0c97519 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/Permissions/PermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/Permissions/PermissionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public PermissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/SiteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/SiteItemRequestBuilder.cs
index 19ad9f12bf9..42e54760142 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/SiteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/SiteItemRequestBuilder.cs
@@ -220,7 +220,7 @@ public SiteItemRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Site> PatchAsync(global::Microsoft.Graph.Models.Site body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -262,7 +262,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Site body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs
index 73432e81eae..10d4cf136f2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/GroupsRequestBuilder.cs
@@ -95,7 +95,7 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PostAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs
index 89a5cf0f5f9..42bdd42c83e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/GroupItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
index 80fb52459c8..e46048010b1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 653ec477c1c..29a9211198c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 3fffead6058..77bade7bec4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 5fa9c46af87..de0092cc663 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 171351ea5dd..d88886459bf 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 1287263598b..60684a8ec51 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 26773e3335c..03a58e50da4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index d7813748c9f..993cf6cf1c9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index 38edf7f2a71..244b14ba413 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index 97409574794..25a2b8a6696 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
index d8454bd862a..7c96d5118a4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
index d94a671e68e..eb69a7725d2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index f45d106891e..8812c605989 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 018b8bf2d20..f3bd994f16c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 27f5e4a2659..4da3e1fe1d4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index d4561101f0f..3d6c20570b5 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 04edfecb2ba..3bd0f51ca0f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 23b671deeb0..197b37dad92 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 3291792f2a1..0581b5fd9db 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
index 0dca6690c02..bb7b139851d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs
index 3f77a8579c0..83d7f1fba36 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Groups/Item/Sets/SetsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs
index ba12983b89e..aa94b854f1a 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -95,7 +95,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 6398c3f9dcb..679f2425c4f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index f6d2ec14ae7..e89a7086b76 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 4fcdf19c1c1..59a36f3c044 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index ccbf9933bd4..6549308f199 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 5550763516b..ded225e5a1c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 2d7c83aea28..4772ba9e4af 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index 060586a672a..ba84bd5062f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index 69b288856be..e4571155942 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
index d16fabbc5c9..1bc8a5c8f12 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index c502a979827..8e1e8fa21b5 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index c777f850158..b1bd001f903 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index adb52fe8516..d5c501715e6 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 0b6699d2841..1b654401200 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 643fa717fff..a593d1f262d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index f83d56bfacb..38aa9632a4f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index 8f8bba769d4..27d22f70ce1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index 1b0cf6424f2..e858e1dceff 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
index 969ee82031a..67e4c57772b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
index 0ff9a735b3f..68d9ef7e546 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index cf45fd1bcde..dc25006a62c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index bb41d1dff2b..42554f0c2c9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index e278c7f1080..1b396c32a4b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index 97dd28cb1a0..80ceaf47fae 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 42faaa82d31..d67d9fbb9f7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 92505ba06ff..e0ff62fc974 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 0d91e18fd4e..00e9bd29997 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
index 858d7bbc9a8..58d8420f23f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
index 96b23d1f7b5..9aff27c4eb0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index 1a4c8b358f8..d43f49b17c1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs
index 275278a6e26..c498e5555a7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -94,7 +94,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs
index 305c3fdc947..75eaeebe101 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/SetItemRequestBuilder.cs
@@ -123,7 +123,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -184,7 +184,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index 6ea8f31773c..ca33171a405 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index e474ba04970..b6b04d3210c 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 0ed652d2e0d..f391591b404 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index f216ade63c9..6cb2388be0b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 180a79d40d5..8f1bf2c2850 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 7eb43a1c57f..a0ecdd82ffb 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index bbf9967604b..47e00e61fd6 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs
index 665246971d5..f2245604a18 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs
index ebd7f4cc09d..896959c9428 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/Sets/SetsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/TermStoreRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/TermStoreRequestBuilder.cs
index 657aa7d1ba9..f35c838eb24 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStore/TermStoreRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStore/TermStoreRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PatchAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs
index 102fd9cceb7..e47bbaffc84 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/GroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public GroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PostAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs
index b3883714da9..d6a8e946770 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/GroupItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
index 2d79c410e86..8f85d08b0f2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index acf3f0285fe..4a405304c6d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 32f715e6a34..6eaa6d9af4d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index d6e54509f11..9c29ca11aaf 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 8553403de4d..c3503dd146d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 37664ffc065..8bf2b059d87 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 771b5c11466..4f8e2b453e3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index d99afe5a474..eeb1f5391f4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index e4e1a029b48..ef28f0620c0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index ba5a5a08e7e..e3778c639e7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
index dc87036a782..253a85fdfa9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
index a043878283f..6e5484e34bd 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/SetItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index c1e94089d87..30ad1b66a71 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 7f0d2586d75..34c0122af8b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 44d74ce473b..c3512b72cac 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index bacd88b8ca8..6f047608432 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 4e098a7806b..1ee7e3affc3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 92aa1be461e..2e7c9e01af2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 92097c3a07d..f1db03a00f1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
index e7c6c1ae449..9e4dac1220b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs
index eea56ac8be7..12b5d575d81 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Groups/Item/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
index c76a2f32fa4..582542d0cc8 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index a5ea8f35807..3a7e7a461f5 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 1accf54a588..62289a95518 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 6226beee83c..4997485efb9 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 95bd006c269..b69a698ae55 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index fbf52f54e01..4012db75e0d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index c9876724f2b..a641eabb9b4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index a5fb0fd0f49..6372f76ce59 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
index 0e8f885ebe3..d2b59d5c585 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/ParentGroupRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Group> PatchAsync(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Group body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
index 6cd67c91225..3524e842ae4 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
index 2b6bb6c74f9..ba242c20fb3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 48f16067fc6..5420418ab31 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 8cd0d297b24..7f90a7f8556 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
index 4f91fe1c41f..2648fdda293 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index c135cabd857..6865b82bac6 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index bfb54f04f4e..4ae0245cb7b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
index c6f7c9d0440..64538ae60dc 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Children/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index eec81ace15b..7e7911ff5cc 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
index a2c7dad5d0b..44d47044bf0 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
index d239f9dc8e7..45c760082db 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/SetItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index 8ca238b6131..da36dafdff2 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 66ee37a7f49..dd1ffafa3cd 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 522dbacc3ff..b0c00f64ced 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index 0e6b9d3fed9..4ac212bf9da 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 21ae49d5743..42f0daf51ab 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index 82a513a4cb8..dbf6fd06975 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 68282a9b315..5b8fff0868d 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
index b7bbc3a161a..85f64c116c1 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
index 12acbb84740..bb059cd7b88 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/ParentGroup/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
index 9f65c1571f0..a5d01e6c230 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
index d7d319b7ba1..09c67bd3e64 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs
index b86ee7c6073..615484cb5bd 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/SetItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PatchAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
index 00b42f41454..d9a6297cdab 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/ChildrenRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChildrenRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
index 9ee786251d0..f557a39fdbb 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
index 14e3cdaa204..4ff68a378f7 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
index e876ec9a189..17a276d13ec 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Children/Item/TermItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
index 45a83d12e5b..f7646f0f56b 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/Item/RelationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PatchAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
index d8602774cfd..d4ef48b140e 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/Relations/RelationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public RelationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Relation> PostAsync(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Relation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
index 2f43d633636..24e9caeda84 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/Item/TermItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PatchAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs
index bb234986236..2644407f62f 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/Item/Terms/TermsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TermStore.Term> PostAsync(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Term body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs
index c8c5228f95e..6e98e96a642 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/Sets/SetsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SetsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TermStore.Set> PostAsync(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Set body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs
index f3b24d5311e..5b6b0142e34 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/Item/StoreItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PatchAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/TermStoresRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/TermStoresRequestBuilder.cs
index 652e8804166..af2342b49b3 100644
--- a/src/Microsoft.Graph/Generated/Sites/Item/TermStores/TermStoresRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Item/TermStores/TermStoresRequestBuilder.cs
@@ -93,7 +93,7 @@ public TermStoresRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TermStore.Store> PostAsync(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TermStore.Store body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostRequestBody.cs
index 16c102ec693..f5c62c3dcef 100644
--- a/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Sites.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostResponse.cs
index 741accd5209..bb379eac4cf 100644
--- a/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Sites/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/Remove/RemoveRequestBuilder.cs
index 37870de8ed8..0ac1b658603 100644
--- a/src/Microsoft.Graph/Generated/Sites/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Sites.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Sites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Sites.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Sites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Sites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Sites/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Sites/Remove/RemoveResponse.cs
index c8d8cee649a..d3bc25d80f6 100644
--- a/src/Microsoft.Graph/Generated/Sites/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Sites/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Sites.Remove.Remov
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Sites.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Sites.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Sites/SitesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Sites/SitesRequestBuilder.cs
index 48b3f1b9544..047d4e1dbc9 100644
--- a/src/Microsoft.Graph/Generated/Sites/SitesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Sites/SitesRequestBuilder.cs
@@ -78,8 +78,8 @@ public SitesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         {
         }
         /// <summary>
-        /// List all available sites in an organization. Specific filter criteria and query options are also supported and described below: In addition, you can use a $search query against the /sites collection to find sites matching given keywords.If you want to list all sites across all geographies, refer to getAllSites. For more guidance about building applications that use site discovery for scanning purposes, see Best practices for discovering files and detecting changes at scale.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/site-list?view=graph-rest-1.0" />
+        /// Search across a SharePoint tenant for sites that match keywords provided. The only property that works for sorting is createdDateTime. The search filter is a free text search that uses multiple properties when retrieving the search results.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/site-search?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.SiteCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -102,7 +102,7 @@ public SitesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.SiteCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.SiteCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List all available sites in an organization. Specific filter criteria and query options are also supported and described below: In addition, you can use a $search query against the /sites collection to find sites matching given keywords.If you want to list all sites across all geographies, refer to getAllSites. For more guidance about building applications that use site discovery for scanning purposes, see Best practices for discovering files and detecting changes at scale.
+        /// Search across a SharePoint tenant for sites that match keywords provided. The only property that works for sorting is createdDateTime. The search filter is a free text search that uses multiple properties when retrieving the search results.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -130,7 +130,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return new global::Microsoft.Graph.Sites.SitesRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List all available sites in an organization. Specific filter criteria and query options are also supported and described below: In addition, you can use a $search query against the /sites collection to find sites matching given keywords.If you want to list all sites across all geographies, refer to getAllSites. For more guidance about building applications that use site discovery for scanning purposes, see Best practices for discovering files and detecting changes at scale.
+        /// Search across a SharePoint tenant for sites that match keywords provided. The only property that works for sorting is createdDateTime. The search filter is a free text search that uses multiple properties when retrieving the search results.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class SitesRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/BackupRestoreRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/BackupRestoreRequestBuilder.cs
index 0a68628afa0..38fb60e528e 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/BackupRestoreRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/BackupRestoreRequestBuilder.cs
@@ -223,7 +223,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BackupRestoreRoot> PatchAsync(global::Microsoft.Graph.Models.BackupRestoreRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -284,7 +284,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BackupRestoreRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/DriveInclusionRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/DriveInclusionRulesRequestBuilder.cs
index 797b928fa19..8e1e764843a 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/DriveInclusionRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/DriveInclusionRulesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DriveInclusionRulesRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.DriveProtectionRule> PostAsync(global::Microsoft.Graph.Models.DriveProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/Item/DriveProtectionRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/Item/DriveProtectionRuleItemRequestBuilder.cs
index 09ee0f55e8e..8f3f42d8037 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/Item/DriveProtectionRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveInclusionRules/Item/DriveProtectionRuleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DriveProtectionRule> PatchAsync(global::Microsoft.Graph.Models.DriveProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DriveProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/DriveProtectionUnitsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/DriveProtectionUnitsRequestBuilder.cs
index 988418d058c..fb63582cdbb 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/DriveProtectionUnitsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/DriveProtectionUnitsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DriveProtectionUnitsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.DriveProtectionUnit> PostAsync(global::Microsoft.Graph.Models.DriveProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/Item/DriveProtectionUnitItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/Item/DriveProtectionUnitItemRequestBuilder.cs
index bb8aa7a1ac7..6ccb1c950a1 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/Item/DriveProtectionUnitItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnits/Item/DriveProtectionUnitItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DriveProtectionUnit> PatchAsync(global::Microsoft.Graph.Models.DriveProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DriveProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/DriveProtectionUnitsBulkAdditionJobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/DriveProtectionUnitsBulkAdditionJobsRequestBuilder.cs
index 5f47523f57f..e5aa1861092 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/DriveProtectionUnitsBulkAdditionJobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/DriveProtectionUnitsBulkAdditionJobsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DriveProtectionUnitsBulkAdditionJobsRequestBuilder(string rawUrl, IReques
         public async Task<global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob> PostAsync(global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/Item/DriveProtectionUnitsBulkAdditionJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/Item/DriveProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
index e0599930865..0b08e5a88df 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/Item/DriveProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/DriveProtectionUnitsBulkAdditionJobs/Item/DriveProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob> PatchAsync(global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DriveProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnablePostRequestBody.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnablePostRequestBody.cs
index 716d8d17ae1..e8b6af110e1 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnablePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnablePostRequestBody.cs
@@ -52,7 +52,7 @@ public EnablePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Solutions.BackupRestore.Enable.EnablePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BackupRestore.Enable.EnablePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("appOwnerTenantId", AppOwnerTenantId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnableRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnableRequestBuilder.cs
index 325e48336b4..69527fabaf0 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnableRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/Enable/EnableRequestBuilder.cs
@@ -52,7 +52,7 @@ public EnableRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.ServiceStatus> PostAsync(global::Microsoft.Graph.Solutions.BackupRestore.Enable.EnablePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solut
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solutions.BackupRestore.Enable.EnablePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/ExchangeProtectionPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/ExchangeProtectionPoliciesRequestBuilder.cs
index 3e59cd4d68e..37881a68475 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/ExchangeProtectionPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/ExchangeProtectionPoliciesRequestBuilder.cs
@@ -94,7 +94,7 @@ public ExchangeProtectionPoliciesRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.ExchangeProtectionPolicy> PostAsync(global::Microsoft.Graph.Models.ExchangeProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExchangeProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/Item/ExchangeProtectionPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/Item/ExchangeProtectionPolicyItemRequestBuilder.cs
index 149ee379923..c088ea7d049 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/Item/ExchangeProtectionPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeProtectionPolicies/Item/ExchangeProtectionPolicyItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExchangeProtectionPolicy> PatchAsync(global::Microsoft.Graph.Models.ExchangeProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExchangeProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/ExchangeRestoreSessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/ExchangeRestoreSessionsRequestBuilder.cs
index f69f488f5a5..ae4c0d2b41c 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/ExchangeRestoreSessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/ExchangeRestoreSessionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ExchangeRestoreSessionsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.ExchangeRestoreSession> PostAsync(global::Microsoft.Graph.Models.ExchangeRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ExchangeRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/ExchangeRestoreSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/ExchangeRestoreSessionItemRequestBuilder.cs
index 3377a38256a..7b2e4afd4bf 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/ExchangeRestoreSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/ExchangeRestoreSessionItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ExchangeRestoreSession> PatchAsync(global::Microsoft.Graph.Models.ExchangeRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ExchangeRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/GranularMailboxRestoreArtifactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/GranularMailboxRestoreArtifactsRequestBuilder.cs
index d4ba96b489d..d3ad102156f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/GranularMailboxRestoreArtifactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/GranularMailboxRestoreArtifactsRequestBuilder.cs
@@ -93,7 +93,7 @@ public GranularMailboxRestoreArtifactsRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact> PostAsync(global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/Item/GranularMailboxRestoreArtifactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/Item/GranularMailboxRestoreArtifactItemRequestBuilder.cs
index 78bff36186b..e2b7a814941 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/Item/GranularMailboxRestoreArtifactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/GranularMailboxRestoreArtifacts/Item/GranularMailboxRestoreArtifactItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact> PatchAsync(global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.GranularMailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/Item/MailboxRestoreArtifactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/Item/MailboxRestoreArtifactItemRequestBuilder.cs
index a6f15cb4e5d..aa57f36859a 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/Item/MailboxRestoreArtifactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/Item/MailboxRestoreArtifactItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailboxRestoreArtifact> PatchAsync(global::Microsoft.Graph.Models.MailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/MailboxRestoreArtifactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/MailboxRestoreArtifactsRequestBuilder.cs
index 665aa21c8bb..b7772e11993 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/MailboxRestoreArtifactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifacts/MailboxRestoreArtifactsRequestBuilder.cs
@@ -94,7 +94,7 @@ public MailboxRestoreArtifactsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.MailboxRestoreArtifact> PostAsync(global::Microsoft.Graph.Models.MailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailboxRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/Item/MailboxRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/Item/MailboxRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
index b3ff2908d2c..37a2faceead 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/Item/MailboxRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/Item/MailboxRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest> PatchAsync(global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/MailboxRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/MailboxRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
index e2573425b56..dfb9c36ab3f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/MailboxRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ExchangeRestoreSessions/Item/MailboxRestoreArtifactsBulkAdditionRequests/MailboxRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public MailboxRestoreArtifactsBulkAdditionRequestsRequestBuilder(string rawUrl,
         public async Task<global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest> PostAsync(global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailboxRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/Item/MailboxProtectionRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/Item/MailboxProtectionRuleItemRequestBuilder.cs
index 05adccf2097..c6895edaed1 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/Item/MailboxProtectionRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/Item/MailboxProtectionRuleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailboxProtectionRule> PatchAsync(global::Microsoft.Graph.Models.MailboxProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/MailboxInclusionRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/MailboxInclusionRulesRequestBuilder.cs
index 7c124629068..51f555085f5 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/MailboxInclusionRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxInclusionRules/MailboxInclusionRulesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MailboxInclusionRulesRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.MailboxProtectionRule> PostAsync(global::Microsoft.Graph.Models.MailboxProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailboxProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/Item/MailboxProtectionUnitItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/Item/MailboxProtectionUnitItemRequestBuilder.cs
index 405535c3db8..762d1177cf6 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/Item/MailboxProtectionUnitItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/Item/MailboxProtectionUnitItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailboxProtectionUnit> PatchAsync(global::Microsoft.Graph.Models.MailboxProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/MailboxProtectionUnitsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/MailboxProtectionUnitsRequestBuilder.cs
index c0c03d844e3..3cb0b5c5833 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/MailboxProtectionUnitsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnits/MailboxProtectionUnitsRequestBuilder.cs
@@ -93,7 +93,7 @@ public MailboxProtectionUnitsRequestBuilder(string rawUrl, IRequestAdapter reque
         public async Task<global::Microsoft.Graph.Models.MailboxProtectionUnit> PostAsync(global::Microsoft.Graph.Models.MailboxProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailboxProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/Item/MailboxProtectionUnitsBulkAdditionJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/Item/MailboxProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
index 908f286197f..0045461a7b7 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/Item/MailboxProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/Item/MailboxProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob> PatchAsync(global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/MailboxProtectionUnitsBulkAdditionJobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/MailboxProtectionUnitsBulkAdditionJobsRequestBuilder.cs
index 3c4cba236f7..f7fa90e0d3c 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/MailboxProtectionUnitsBulkAdditionJobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/MailboxProtectionUnitsBulkAdditionJobs/MailboxProtectionUnitsBulkAdditionJobsRequestBuilder.cs
@@ -93,7 +93,7 @@ public MailboxProtectionUnitsBulkAdditionJobsRequestBuilder(string rawUrl, IRequ
         public async Task<global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob> PostAsync(global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailboxProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/Item/OneDriveForBusinessProtectionPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/Item/OneDriveForBusinessProtectionPolicyItemRequestBuilder.cs
index 5eb1563dbc0..8633ac5d03d 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/Item/OneDriveForBusinessProtectionPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/Item/OneDriveForBusinessProtectionPolicyItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy> PatchAsync(global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/OneDriveForBusinessProtectionPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/OneDriveForBusinessProtectionPoliciesRequestBuilder.cs
index 814dca7b11b..02bba0aaa86 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/OneDriveForBusinessProtectionPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessProtectionPolicies/OneDriveForBusinessProtectionPoliciesRequestBuilder.cs
@@ -94,7 +94,7 @@ public OneDriveForBusinessProtectionPoliciesRequestBuilder(string rawUrl, IReque
         public async Task<global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy> PostAsync(global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OneDriveForBusinessProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/DriveRestoreArtifactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/DriveRestoreArtifactsRequestBuilder.cs
index 45fcfbba105..6b0a15b8f7c 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/DriveRestoreArtifactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/DriveRestoreArtifactsRequestBuilder.cs
@@ -94,7 +94,7 @@ public DriveRestoreArtifactsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.DriveRestoreArtifact> PostAsync(global::Microsoft.Graph.Models.DriveRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/Item/DriveRestoreArtifactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/Item/DriveRestoreArtifactItemRequestBuilder.cs
index e4a4d60c179..33b2933ab53 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/Item/DriveRestoreArtifactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifacts/Item/DriveRestoreArtifactItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DriveRestoreArtifact> PatchAsync(global::Microsoft.Graph.Models.DriveRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DriveRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/DriveRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/DriveRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
index 609ffd6843e..355187021a5 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/DriveRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/DriveRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DriveRestoreArtifactsBulkAdditionRequestsRequestBuilder(string rawUrl, IR
         public async Task<global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest> PostAsync(global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/Item/DriveRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/Item/DriveRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
index 202c458e03a..d74c8804b2a 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/Item/DriveRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/DriveRestoreArtifactsBulkAdditionRequests/Item/DriveRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest> PatchAsync(global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DriveRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/OneDriveForBusinessRestoreSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/OneDriveForBusinessRestoreSessionItemRequestBuilder.cs
index 700a9c24f1a..cf7f7cf9709 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/OneDriveForBusinessRestoreSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/Item/OneDriveForBusinessRestoreSessionItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession> PatchAsync(global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/OneDriveForBusinessRestoreSessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/OneDriveForBusinessRestoreSessionsRequestBuilder.cs
index 211911906e9..3e1a0894ee0 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/OneDriveForBusinessRestoreSessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/OneDriveForBusinessRestoreSessions/OneDriveForBusinessRestoreSessionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public OneDriveForBusinessRestoreSessionsRequestBuilder(string rawUrl, IRequestA
         public async Task<global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession> PostAsync(global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OneDriveForBusinessRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/Item/ProtectionPolicyBaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/Item/ProtectionPolicyBaseItemRequestBuilder.cs
index ce0d1bfb5ba..9122d6cfba2 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/Item/ProtectionPolicyBaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/Item/ProtectionPolicyBaseItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ProtectionPolicyBase> PatchAsync(global::Microsoft.Graph.Models.ProtectionPolicyBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProtectionPolicyBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/ProtectionPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/ProtectionPoliciesRequestBuilder.cs
index 7498b2552c7..5f2d96c7320 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/ProtectionPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ProtectionPolicies/ProtectionPoliciesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ProtectionPoliciesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.ProtectionPolicyBase> PostAsync(global::Microsoft.Graph.Models.ProtectionPolicyBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ProtectionPolicyBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Item/RestorePointItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Item/RestorePointItemRequestBuilder.cs
index 093248c23fc..244abacc7dd 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Item/RestorePointItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Item/RestorePointItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RestorePoint> PatchAsync(global::Microsoft.Graph.Models.RestorePoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RestorePoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/RestorePointsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/RestorePointsRequestBuilder.cs
index d924c1ffa38..c43a02e05ad 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/RestorePointsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/RestorePointsRequestBuilder.cs
@@ -100,7 +100,7 @@ public RestorePointsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.RestorePoint> PostAsync(global::Microsoft.Graph.Models.RestorePoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RestorePoint body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchPostRequestBody.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchPostRequestBody.cs
index 7fc89d5ed6d..82a9e98eb1d 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchPostRequestBody.cs
@@ -97,7 +97,7 @@ public SearchPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Solutions.BackupRestore.RestorePoints.Search.SearchPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BackupRestore.RestorePoints.Search.SearchPostRequestBody();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ArtifactQuery>("artifactQuery", ArtifactQuery);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimePeriod>("protectionTimePeriod", ProtectionTimePeriod);
             writer.WriteCollectionOfPrimitiveValues<string>("protectionUnitIds", ProtectionUnitIds);
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchRequestBuilder.cs
index 735281dd0ca..e93776f56ce 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestorePoints/Search/SearchRequestBuilder.cs
@@ -52,7 +52,7 @@ public SearchRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.RestorePointSearchResponse> PostAsync(global::Microsoft.Graph.Solutions.BackupRestore.RestorePoints.Search.SearchPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solut
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solutions.BackupRestore.RestorePoints.Search.SearchPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/Item/RestoreSessionBaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/Item/RestoreSessionBaseItemRequestBuilder.cs
index 5766dd165a7..86e637ec47f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/Item/RestoreSessionBaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/Item/RestoreSessionBaseItemRequestBuilder.cs
@@ -104,7 +104,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RestoreSessionBase> PatchAsync(global::Microsoft.Graph.Models.RestoreSessionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -165,7 +165,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RestoreSessionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/RestoreSessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/RestoreSessionsRequestBuilder.cs
index 879b55ed32d..5c42ba68767 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/RestoreSessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/RestoreSessions/RestoreSessionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public RestoreSessionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.RestoreSessionBase> PostAsync(global::Microsoft.Graph.Models.RestoreSessionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RestoreSessionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivatePostRequestBody.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivatePostRequestBody.cs
index 4d246d3f74e..b28541442bb 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivatePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivatePostRequestBody.cs
@@ -42,7 +42,7 @@ public ActivatePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Solutions.BackupRestore.ServiceApps.Item.Activate.ActivatePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BackupRestore.ServiceApps.Item.Activate.ActivatePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("effectiveDateTime", EffectiveDateTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivateRequestBuilder.cs
index 16fb80c38ab..50fb3b9e28f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/Activate/ActivateRequestBuilder.cs
@@ -52,7 +52,7 @@ public ActivateRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ServiceApp> PostAsync(global::Microsoft.Graph.Solutions.BackupRestore.ServiceApps.Item.Activate.ActivatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solut
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solutions.BackupRestore.ServiceApps.Item.Activate.ActivatePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/ServiceAppItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/ServiceAppItemRequestBuilder.cs
index 2c3ffad1122..ab85bfecda4 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/ServiceAppItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/Item/ServiceAppItemRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceApp> PatchAsync(global::Microsoft.Graph.Models.ServiceApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/ServiceAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/ServiceAppsRequestBuilder.cs
index fca5a27ba70..971adaec42f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/ServiceAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/ServiceApps/ServiceAppsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ServiceAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ServiceApp> PostAsync(global::Microsoft.Graph.Models.ServiceApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceApp body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/Item/SharePointProtectionPolicyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/Item/SharePointProtectionPolicyItemRequestBuilder.cs
index 8816b75ff67..2eae0394deb 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/Item/SharePointProtectionPolicyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/Item/SharePointProtectionPolicyItemRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharePointProtectionPolicy> PatchAsync(global::Microsoft.Graph.Models.SharePointProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharePointProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/SharePointProtectionPoliciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/SharePointProtectionPoliciesRequestBuilder.cs
index 410a7c5ffd6..93fd621db1b 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/SharePointProtectionPoliciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointProtectionPolicies/SharePointProtectionPoliciesRequestBuilder.cs
@@ -94,7 +94,7 @@ public SharePointProtectionPoliciesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.SharePointProtectionPolicy> PostAsync(global::Microsoft.Graph.Models.SharePointProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharePointProtectionPolicy body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SharePointRestoreSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SharePointRestoreSessionItemRequestBuilder.cs
index 2278c863b0c..2712a2ab080 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SharePointRestoreSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SharePointRestoreSessionItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharePointRestoreSession> PatchAsync(global::Microsoft.Graph.Models.SharePointRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharePointRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/Item/SiteRestoreArtifactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/Item/SiteRestoreArtifactItemRequestBuilder.cs
index 3c369073f35..4a25c0d0f29 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/Item/SiteRestoreArtifactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/Item/SiteRestoreArtifactItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SiteRestoreArtifact> PatchAsync(global::Microsoft.Graph.Models.SiteRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SiteRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/SiteRestoreArtifactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/SiteRestoreArtifactsRequestBuilder.cs
index b5c698dd14b..eeaa3ff4597 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/SiteRestoreArtifactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifacts/SiteRestoreArtifactsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SiteRestoreArtifactsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.SiteRestoreArtifact> PostAsync(global::Microsoft.Graph.Models.SiteRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SiteRestoreArtifact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/Item/SiteRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/Item/SiteRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
index 4fcb3831207..b38c3ae48f7 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/Item/SiteRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/Item/SiteRestoreArtifactsBulkAdditionRequestItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest> PatchAsync(global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/SiteRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/SiteRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
index 041578ce464..a9ea93334f8 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/SiteRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/Item/SiteRestoreArtifactsBulkAdditionRequests/SiteRestoreArtifactsBulkAdditionRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SiteRestoreArtifactsBulkAdditionRequestsRequestBuilder(string rawUrl, IRe
         public async Task<global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest> PostAsync(global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SiteRestoreArtifactsBulkAdditionRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/SharePointRestoreSessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/SharePointRestoreSessionsRequestBuilder.cs
index 2e54df61ae2..22e3e6e1756 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/SharePointRestoreSessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SharePointRestoreSessions/SharePointRestoreSessionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SharePointRestoreSessionsRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.SharePointRestoreSession> PostAsync(global::Microsoft.Graph.Models.SharePointRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharePointRestoreSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/Item/SiteProtectionRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/Item/SiteProtectionRuleItemRequestBuilder.cs
index 2ce2058fae1..ae8c6102e21 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/Item/SiteProtectionRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/Item/SiteProtectionRuleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SiteProtectionRule> PatchAsync(global::Microsoft.Graph.Models.SiteProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SiteProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/SiteInclusionRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/SiteInclusionRulesRequestBuilder.cs
index d02a9aba82a..05d122805ef 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/SiteInclusionRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteInclusionRules/SiteInclusionRulesRequestBuilder.cs
@@ -93,7 +93,7 @@ public SiteInclusionRulesRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.SiteProtectionRule> PostAsync(global::Microsoft.Graph.Models.SiteProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SiteProtectionRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/Item/SiteProtectionUnitItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/Item/SiteProtectionUnitItemRequestBuilder.cs
index b0315b32a5b..f85c02bf228 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/Item/SiteProtectionUnitItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/Item/SiteProtectionUnitItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SiteProtectionUnit> PatchAsync(global::Microsoft.Graph.Models.SiteProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SiteProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/SiteProtectionUnitsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/SiteProtectionUnitsRequestBuilder.cs
index 750c14300bd..420ab3a3714 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/SiteProtectionUnitsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnits/SiteProtectionUnitsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SiteProtectionUnitsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.SiteProtectionUnit> PostAsync(global::Microsoft.Graph.Models.SiteProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SiteProtectionUnit body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/Item/SiteProtectionUnitsBulkAdditionJobItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/Item/SiteProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
index 5ebfccc6563..0af29ad3f66 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/Item/SiteProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/Item/SiteProtectionUnitsBulkAdditionJobItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob> PatchAsync(global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/SiteProtectionUnitsBulkAdditionJobsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/SiteProtectionUnitsBulkAdditionJobsRequestBuilder.cs
index aae4d720b52..3327a0a95bc 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/SiteProtectionUnitsBulkAdditionJobsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BackupRestore/SiteProtectionUnitsBulkAdditionJobs/SiteProtectionUnitsBulkAdditionJobsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SiteProtectionUnitsBulkAdditionJobsRequestBuilder(string rawUrl, IRequest
         public async Task<global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob> PostAsync(global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SiteProtectionUnitsBulkAdditionJob body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/BookingBusinessesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/BookingBusinessesRequestBuilder.cs
index e471a42855e..8aca9c159ab 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/BookingBusinessesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/BookingBusinessesRequestBuilder.cs
@@ -95,7 +95,7 @@ public BookingBusinessesRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.BookingBusiness> PostAsync(global::Microsoft.Graph.Models.BookingBusiness body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingBusiness body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/AppointmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/AppointmentsRequestBuilder.cs
index 56feae3770f..30354e77a86 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/AppointmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/AppointmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppointmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.BookingAppointment> PostAsync(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/BookingAppointmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/BookingAppointmentItemRequestBuilder.cs
index faa1af2916b..56d267f630d 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/BookingAppointmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/BookingAppointmentItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingAppointment> PatchAsync(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelPostRequestBody.cs
index 83a6b4ac812..9b1a8ece012 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Solutions.BookingBusinesses.Item.Appointments.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BookingBusinesses.Item.Appointments.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("cancellationMessage", CancellationMessage);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelRequestBuilder.cs
index e0f3b2359e5..2a655777205 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Appointments/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Solutions.BookingBusinesses.
         public async Task PostAsync(global::Microsoft.Graph.Solutions.BookingBusinesses.Item.Appointments.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solut
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solutions.BookingBusinesses.Item.Appointments.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/BookingBusinessItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/BookingBusinessItemRequestBuilder.cs
index fae82566a7b..36fbbc9c65a 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/BookingBusinessItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/BookingBusinessItemRequestBuilder.cs
@@ -153,7 +153,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingBusiness> PatchAsync(global::Microsoft.Graph.Models.BookingBusiness body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -214,7 +214,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingBusiness body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/CalendarViewRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/CalendarViewRequestBuilder.cs
index 5825f86238c..575992e8360 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/CalendarViewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/CalendarViewRequestBuilder.cs
@@ -94,7 +94,7 @@ public CalendarViewRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.BookingAppointment> PostAsync(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, "{+baseurl}/solutions/bookingBusinesses/{bookingBusiness%2Did}/calendarView", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/BookingAppointmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/BookingAppointmentItemRequestBuilder.cs
index 8c79c553909..5d8578afae0 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/BookingAppointmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/BookingAppointmentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingAppointment> PatchAsync(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingAppointment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, "{+baseurl}/solutions/bookingBusinesses/{bookingBusiness%2Did}/calendarView/{bookingAppointment%2Did}", PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelPostRequestBody.cs
index 011029bd843..c6e56cfbe78 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Solutions.BookingBusinesses.Item.CalendarView.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BookingBusinesses.Item.CalendarView.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("cancellationMessage", CancellationMessage);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelRequestBuilder.cs
index ecacb682671..2de96a136fa 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CalendarView/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Solutions.BookingBusinesses.
         public async Task PostAsync(global::Microsoft.Graph.Solutions.BookingBusinesses.Item.CalendarView.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solut
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solutions.BookingBusinesses.Item.CalendarView.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/CustomQuestionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/CustomQuestionsRequestBuilder.cs
index 8a70522d5c7..3fdde6f4668 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/CustomQuestionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/CustomQuestionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public CustomQuestionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.BookingCustomQuestion> PostAsync(global::Microsoft.Graph.Models.BookingCustomQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingCustomQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/Item/BookingCustomQuestionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/Item/BookingCustomQuestionItemRequestBuilder.cs
index 8232b65d850..4aeebfdc971 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/Item/BookingCustomQuestionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/CustomQuestions/Item/BookingCustomQuestionItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingCustomQuestion> PatchAsync(global::Microsoft.Graph.Models.BookingCustomQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingCustomQuestion body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/CustomersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/CustomersRequestBuilder.cs
index 2db1c5c0716..a4e37edcb9b 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/CustomersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/CustomersRequestBuilder.cs
@@ -95,7 +95,7 @@ public CustomersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.BookingCustomerBase> PostAsync(global::Microsoft.Graph.Models.BookingCustomerBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingCustomerBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/Item/BookingCustomerBaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/Item/BookingCustomerBaseItemRequestBuilder.cs
index d4f612261a5..81fb0b87b5a 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/Item/BookingCustomerBaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Customers/Item/BookingCustomerBaseItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingCustomerBase> PatchAsync(global::Microsoft.Graph.Models.BookingCustomerBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingCustomerBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostRequestBody.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostRequestBody.cs
index 0f6f3f340a1..1b4eb98ae43 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostRequestBody.cs
@@ -85,7 +85,7 @@ public GetStaffAvailabilityPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("endDateTime", EndDateTime);
             writer.WriteCollectionOfPrimitiveValues<string>("staffIds", StaffIds);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostResponse.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostResponse.cs
index c056a3b4aef..421a48ec188 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetStaffAvailabilityPostResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.StaffAvailabilityItem>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityRequestBuilder.cs
index 13b8c838cfc..73355f8454c 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetStaffAvailabilityRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostResponse> PostAsGetStaffAvailabilityPostResponseAsync(global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetStaffAvailabilityRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityResponse> PostAsync(global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solut
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityResponse.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityResponse.cs
index 096d81b417e..0a4e99d7eab 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/GetStaffAvailability/GetStaffAvailabilityResponse.cs
@@ -20,7 +20,7 @@ public partial class GetStaffAvailabilityResponse : global::Microsoft.Graph.Solu
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.BookingBusinesses.Item.GetStaffAvailability.GetStaffAvailabilityResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/Item/BookingServiceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/Item/BookingServiceItemRequestBuilder.cs
index 42dfce8e0e2..18c370a2d0e 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/Item/BookingServiceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/Item/BookingServiceItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingService> PatchAsync(global::Microsoft.Graph.Models.BookingService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/ServicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/ServicesRequestBuilder.cs
index cc69af8aa56..74cb8822478 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/ServicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/Services/ServicesRequestBuilder.cs
@@ -95,7 +95,7 @@ public ServicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.BookingService> PostAsync(global::Microsoft.Graph.Models.BookingService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingService body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/Item/BookingStaffMemberBaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/Item/BookingStaffMemberBaseItemRequestBuilder.cs
index 26c5c31d44c..fa5008e72b1 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/Item/BookingStaffMemberBaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/Item/BookingStaffMemberBaseItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingStaffMemberBase> PatchAsync(global::Microsoft.Graph.Models.BookingStaffMemberBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingStaffMemberBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/StaffMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/StaffMembersRequestBuilder.cs
index 69e1d074bd9..abd4aa6562f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/StaffMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingBusinesses/Item/StaffMembers/StaffMembersRequestBuilder.cs
@@ -95,7 +95,7 @@ public StaffMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.BookingStaffMemberBase> PostAsync(global::Microsoft.Graph.Models.BookingStaffMemberBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingStaffMemberBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/BookingCurrenciesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/BookingCurrenciesRequestBuilder.cs
index b81e932d980..79acd211d23 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/BookingCurrenciesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/BookingCurrenciesRequestBuilder.cs
@@ -94,7 +94,7 @@ public BookingCurrenciesRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.BookingCurrency> PostAsync(global::Microsoft.Graph.Models.BookingCurrency body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.BookingCurrency body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/Item/BookingCurrencyItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/Item/BookingCurrencyItemRequestBuilder.cs
index 91777f01bd7..36f1eda9309 100644
--- a/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/Item/BookingCurrencyItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/BookingCurrencies/Item/BookingCurrencyItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.BookingCurrency> PatchAsync(global::Microsoft.Graph.Models.BookingCurrency body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.BookingCurrency body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/SolutionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/SolutionsRequestBuilder.cs
index b7802589a8d..c54748aa5d2 100644
--- a/src/Microsoft.Graph/Generated/Solutions/SolutionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/SolutionsRequestBuilder.cs
@@ -98,7 +98,7 @@ public SolutionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.SolutionsRoot> PatchAsync(global::Microsoft.Graph.Models.SolutionsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -140,7 +140,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SolutionsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/EventsRequestBuilder.cs
index 9236ced66d2..0b7c337a74a 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/EventsRequestBuilder.cs
@@ -93,7 +93,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.VirtualEvent> PostAsync(global::Microsoft.Graph.Models.VirtualEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
index f45be50ea1a..be99fe1f85b 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventPresenter> PatchAsync(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/PresentersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/PresentersRequestBuilder.cs
index ae967ca514f..8aa7b6b7688 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/PresentersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Presenters/PresentersRequestBuilder.cs
@@ -93,7 +93,7 @@ public PresentersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.VirtualEventPresenter> PostAsync(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
index 5e9e5ad6945..331119cd398 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AttendanceReportsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PostAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
index 10420e11ac1..2fc665b0c48 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AttendanceRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PostAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
index 540207a8bf8..e1f36df06f9 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PatchAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
index 74c409d2f3f..7a0a3bad57e 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PatchAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
index ebd138a0f24..5bfca92c9d2 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventSession> PatchAsync(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/SessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/SessionsRequestBuilder.cs
index a989d3f211c..f61dfd1843b 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/SessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/Sessions/SessionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SessionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.VirtualEventSession> PostAsync(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationPostRequestBody.cs
index e08db7313c6..08fa2ddec09 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetExternalEventInformationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Solutions.VirtualEvents.Events.Item.SetExternalEventInformation.SetExternalEventInformationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Events.Item.SetExternalEventInformation.SetExternalEventInformationPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("externalEventId", ExternalEventId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationRequestBuilder.cs
index aacd59b9cea..7facf9ff2ef 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/SetExternalEventInformation/SetExternalEventInformationRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Solutions.VirtualEvents.Even
         public async Task PostAsync(global::Microsoft.Graph.Solutions.VirtualEvents.Events.Item.SetExternalEventInformation.SetExternalEventInformationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solut
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Solutions.VirtualEvents.Events.Item.SetExternalEventInformation.SetExternalEventInformationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/VirtualEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/VirtualEventItemRequestBuilder.cs
index bee351070c8..b57d16b3081 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/VirtualEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Events/Item/VirtualEventItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEvent> PatchAsync(global::Microsoft.Graph.Models.VirtualEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs
index 5eff3fd7602..dc1a4e141ea 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByUserIdAndRoleWithUserIdWithRoleGetResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventTownhall>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs
index 5305b62acfe..178892fc873 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByUserIdAndRoleWithUserIdWithRoleResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs
index 11d69f0f15d..c8e1c9ec529 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByUserRoleWithRoleGetResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserRoleWithRole.GetByUserRoleWithRoleGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserRoleWithRole.GetByUserRoleWithRoleGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventTownhall>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs
index c2959173508..2be60311080 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByUserRoleWithRoleResponse : global::Microsoft.Graph.Sol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserRoleWithRole.GetByUserRoleWithRoleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Townhalls.GetByUserRoleWithRole.GetByUserRoleWithRoleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
index 69adb5ed8c0..7ab3964a77c 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventPresenter> PatchAsync(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/PresentersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/PresentersRequestBuilder.cs
index e2b48283dd4..91fe92e8ff7 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/PresentersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Presenters/PresentersRequestBuilder.cs
@@ -95,7 +95,7 @@ public PresentersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.VirtualEventPresenter> PostAsync(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
index 7f6a5fdbf30..33fda1700d4 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AttendanceReportsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PostAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
index f26b6e688ec..f5b1eefc665 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AttendanceRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PostAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
index 2b4850a31f8..9c0d65dca0f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PatchAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
index 55656a28f6d..7ddb6a386cd 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PatchAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
index 82fc4774a2f..8c3fdf9a96f 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventSession> PatchAsync(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/SessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/SessionsRequestBuilder.cs
index 7017471b790..0e9aa0963a0 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/SessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/Sessions/SessionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SessionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.VirtualEventSession> PostAsync(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/VirtualEventTownhallItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/VirtualEventTownhallItemRequestBuilder.cs
index bf95aa9d89b..dd999fc6597 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/VirtualEventTownhallItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/Item/VirtualEventTownhallItemRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventTownhall> PatchAsync(global::Microsoft.Graph.Models.VirtualEventTownhall body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventTownhall body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/TownhallsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/TownhallsRequestBuilder.cs
index f2d3bfe4893..3c1fd5343cf 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/TownhallsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Townhalls/TownhallsRequestBuilder.cs
@@ -118,7 +118,7 @@ public TownhallsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.VirtualEventTownhall> PostAsync(global::Microsoft.Graph.Models.VirtualEventTownhall body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventTownhall body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/VirtualEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/VirtualEventsRequestBuilder.cs
index 82a618ff512..ebe1e927775 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/VirtualEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/VirtualEventsRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventsRoot> PatchAsync(global::Microsoft.Graph.Models.VirtualEventsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventsRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs
index 4c6cb4d050c..6b1c333bc8e 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByUserIdAndRoleWithUserIdWithRoleGetResponse : global::M
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventWebinar>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs
index 05afa2d2a24..b131e575001 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserIdAndRoleWithUserIdWithRole/GetByUserIdAndRoleWithUserIdWithRoleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByUserIdAndRoleWithUserIdWithRoleResponse : global::Micr
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserIdAndRoleWithUserIdWithRole.GetByUserIdAndRoleWithUserIdWithRoleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs
index 812cdb44337..fadb0bbc616 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByUserRoleWithRoleGetResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserRoleWithRole.GetByUserRoleWithRoleGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserRoleWithRole.GetByUserRoleWithRoleGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.VirtualEventWebinar>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs
index ebc59ee2df3..8920d495f6e 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/GetByUserRoleWithRole/GetByUserRoleWithRoleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByUserRoleWithRoleResponse : global::Microsoft.Graph.Sol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserRoleWithRole.GetByUserRoleWithRoleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Solutions.VirtualEvents.Webinars.GetByUserRoleWithRole.GetByUserRoleWithRoleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
index 4005481f1f0..5d3b1419c82 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/Item/VirtualEventPresenterItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventPresenter> PatchAsync(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/PresentersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/PresentersRequestBuilder.cs
index c9416e28e0c..9dad54b0a72 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/PresentersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Presenters/PresentersRequestBuilder.cs
@@ -94,7 +94,7 @@ public PresentersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.VirtualEventPresenter> PostAsync(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventPresenter body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/Item/VirtualEventRegistrationQuestionBaseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/Item/VirtualEventRegistrationQuestionBaseItemRequestBuilder.cs
index f85a77303f6..4da4a044e23 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/Item/VirtualEventRegistrationQuestionBaseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/Item/VirtualEventRegistrationQuestionBaseItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase> PatchAsync(global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/QuestionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/QuestionsRequestBuilder.cs
index 001c88915b1..c37ff534785 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/QuestionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/Questions/QuestionsRequestBuilder.cs
@@ -95,7 +95,7 @@ public QuestionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase> PostAsync(global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventRegistrationQuestionBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/RegistrationConfigurationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/RegistrationConfigurationRequestBuilder.cs
index ce52eefc3ee..a9ca3c9327e 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/RegistrationConfigurationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationConfiguration/RegistrationConfigurationRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventWebinarRegistrationConfiguration> PatchAsync(global::Microsoft.Graph.Models.VirtualEventWebinarRegistrationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventWebinarRegistrationConfiguration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/Item/VirtualEventRegistrationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/Item/VirtualEventRegistrationItemRequestBuilder.cs
index e0790cff0ac..5e127be0af7 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/Item/VirtualEventRegistrationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/Item/VirtualEventRegistrationItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventRegistration> PatchAsync(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/RegistrationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/RegistrationsRequestBuilder.cs
index f1447982ce5..01b16eb9bfc 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/RegistrationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Registrations/RegistrationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RegistrationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.VirtualEventRegistration> PostAsync(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithEmail/RegistrationsWithEmailRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithEmail/RegistrationsWithEmailRequestBuilder.cs
index 5365741bff4..7d907de56ee 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithEmail/RegistrationsWithEmailRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithEmail/RegistrationsWithEmailRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventRegistration> PatchAsync(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithUserId/RegistrationsWithUserIdRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithUserId/RegistrationsWithUserIdRequestBuilder.cs
index 06fb471203e..cf8f3d1fe9a 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithUserId/RegistrationsWithUserIdRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/RegistrationsWithUserId/RegistrationsWithUserIdRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventRegistration> PatchAsync(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventRegistration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
index 75760b6d60e..1dfb8dc00fd 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AttendanceReportsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PostAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
index 14cde686302..e4aae3ca659 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
@@ -94,7 +94,7 @@ public AttendanceRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PostAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
index c8407287cc0..1e5c3ff1d68 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PatchAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
index a60d1f34357..4086d2811ab 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PatchAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
index 13a8d62fa31..f1dbd40a938 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/Item/VirtualEventSessionItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventSession> PatchAsync(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/SessionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/SessionsRequestBuilder.cs
index 49a2757f2fe..e592ac6d187 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/SessionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/Sessions/SessionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SessionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.VirtualEventSession> PostAsync(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/VirtualEventWebinarItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/VirtualEventWebinarItemRequestBuilder.cs
index 33c2ceeeca3..96951c72835 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/VirtualEventWebinarItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/Item/VirtualEventWebinarItemRequestBuilder.cs
@@ -124,7 +124,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.VirtualEventWebinar> PatchAsync(global::Microsoft.Graph.Models.VirtualEventWebinar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -205,7 +205,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.VirtualEventWebinar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/WebinarsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/WebinarsRequestBuilder.cs
index 65e7a81d3df..46ab52238c3 100644
--- a/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/WebinarsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Solutions/VirtualEvents/Webinars/WebinarsRequestBuilder.cs
@@ -119,7 +119,7 @@ public WebinarsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.VirtualEventWebinar> PostAsync(global::Microsoft.Graph.Models.VirtualEventWebinar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -161,7 +161,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.VirtualEventWebinar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/ContainersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/ContainersRequestBuilder.cs
index 95abefa7ee2..627921d1a9f 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/ContainersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/ContainersRequestBuilder.cs
@@ -95,7 +95,7 @@ public ContainersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.FileStorageContainer> PostAsync(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/ColumnsRequestBuilder.cs
index 99b2fbb0292..e6bbc8f5741 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index a1d62895cb4..57b0f811853 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/FileStorageContainerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/FileStorageContainerItemRequestBuilder.cs
index bf063e8abca..589ec982a9b 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/FileStorageContainerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/FileStorageContainerItemRequestBuilder.cs
@@ -150,7 +150,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FileStorageContainer> PatchAsync(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -211,7 +211,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockPostRequestBody.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockPostRequestBody.cs
index 96ecf3199cb..6053d174042 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockPostRequestBody.cs
@@ -43,7 +43,7 @@ public LockPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Lock.LockPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Lock.LockPostRequestBody();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SiteLockState>("lockState", LockState);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockRequestBuilder.cs
index bf046133021..b6aaa3676b6 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Lock/LockRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Storage.FileStorage.Containe
         public async Task PostAsync(global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Lock.LockPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Stora
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Lock.LockPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
index a2fd23a0956..f34fcfea7e5 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
@@ -69,7 +69,7 @@ public GrantPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRecipient>("recipients", Recipients);
             writer.WriteCollectionOfPrimitiveValues<string>("roles", Roles);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostResponse.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostResponse.cs
index 9880729a25c..39df00eca1c 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GrantPostResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
index 8c1945c84f8..ab4c5170022 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
@@ -51,7 +51,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostResponse> PostAsGrantPostResponseAsync(global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantResponse> PostAsync(global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Stora
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantResponse.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantResponse.cs
index f942e14ba14..0b2621cf924 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantResponse.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/Grant/GrantResponse.cs
@@ -20,7 +20,7 @@ public partial class GrantResponse : global::Microsoft.Graph.Storage.FileStorage
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.Containers.Item.Permissions.Item.Grant.GrantResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/PermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/PermissionItemRequestBuilder.cs
index 232e47f7328..299474c5020 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/PermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/Item/PermissionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Permission> PatchAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/PermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/PermissionsRequestBuilder.cs
index 7ac41173552..211a4337e1f 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/PermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/Permissions/PermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 8ea2cebb608..dca50ad325b 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 07f02f93ea4..e91c527930b 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index a3777aa826f..dffdf0a7d1b 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs
index bbbc802e42e..cf91bd72ee5 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RecycleBinItem> PatchAsync(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/ItemsRequestBuilder.cs
index e72f12cbaf8..45671d7ae16 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/Items/ItemsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.RecycleBinItem> PostAsync(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 654f421e4dc..bdc78cccc8d 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/RecycleBinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/RecycleBinRequestBuilder.cs
index 7967f3a5db8..1ec6b3bdca2 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/RecycleBinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/Containers/Item/RecycleBin/RecycleBinRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RecycleBin> PatchAsync(global::Microsoft.Graph.Models.RecycleBin body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RecycleBin body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/DeletedContainersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/DeletedContainersRequestBuilder.cs
index 003e0191579..f15a1905812 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/DeletedContainersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/DeletedContainersRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeletedContainersRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.FileStorageContainer> PostAsync(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/ColumnsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/ColumnsRequestBuilder.cs
index bc4bc8cb411..67ee6d4b31f 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/ColumnsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/ColumnsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ColumnsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PostAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
index beb1f4f58bf..36cc9f24f44 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Columns/Item/ColumnDefinitionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ColumnDefinition> PatchAsync(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ColumnDefinition body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/FileStorageContainerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/FileStorageContainerItemRequestBuilder.cs
index 06b6f2a8f84..874b4b9ae24 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/FileStorageContainerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/FileStorageContainerItemRequestBuilder.cs
@@ -150,7 +150,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FileStorageContainer> PatchAsync(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -211,7 +211,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FileStorageContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockPostRequestBody.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockPostRequestBody.cs
index 22ef2c71007..6001bf47251 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockPostRequestBody.cs
@@ -43,7 +43,7 @@ public LockPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Lock.LockPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Lock.LockPostRequestBody();
         }
         /// <summary>
@@ -63,7 +63,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.SiteLockState>("lockState", LockState);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockRequestBuilder.cs
index 7ce4bd38cb4..46f917f7ceb 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Lock/LockRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Storage.FileStorage.DeletedC
         public async Task PostAsync(global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Lock.LockPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Stora
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Lock.LockPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
index 0f7a04b81f0..7b1b12bf43c 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostRequestBody.cs
@@ -69,7 +69,7 @@ public GrantPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DriveRecipient>("recipients", Recipients);
             writer.WriteCollectionOfPrimitiveValues<string>("roles", Roles);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostResponse.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostResponse.cs
index 3d59ecca9b0..155d1776b49 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GrantPostResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Permission>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
index 6e3814f928d..dbd4f9fdc73 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantRequestBuilder.cs
@@ -51,7 +51,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostResponse> PostAsGrantPostResponseAsync(global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GrantRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantResponse> PostAsync(global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Stora
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantResponse.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantResponse.cs
index 373f3786c94..a288464a253 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantResponse.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/Grant/GrantResponse.cs
@@ -20,7 +20,7 @@ public partial class GrantResponse : global::Microsoft.Graph.Storage.FileStorage
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Storage.FileStorage.DeletedContainers.Item.Permissions.Item.Grant.GrantResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/PermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/PermissionItemRequestBuilder.cs
index 569c954b56e..478ac16f483 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/PermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/Item/PermissionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Permission> PatchAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/PermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/PermissionsRequestBuilder.cs
index f3cb66ad87f..ebea4466c04 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/PermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/Permissions/PermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Permission> PostAsync(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Permission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index fb2a2353e71..85e95894578 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 30bb2e35a1f..11e4d929660 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/CreatedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index c78c2345cd5..ce409fdd70e 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs
index 1bc0a6d8234..50e8f4bda75 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/Item/RecycleBinItemItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RecycleBinItem> PatchAsync(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/ItemsRequestBuilder.cs
index 36a56af208e..a704d83364b 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/Items/ItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.RecycleBinItem> PostAsync(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.RecycleBinItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
index a0db0d00f59..93dbb33519a 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/LastModifiedByUser/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/RecycleBinRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/RecycleBinRequestBuilder.cs
index 0dcf1331148..2f51b11b9fe 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/RecycleBinRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/DeletedContainers/Item/RecycleBin/RecycleBinRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.RecycleBin> PatchAsync(global::Microsoft.Graph.Models.RecycleBin body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.RecycleBin body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/FileStorage/FileStorageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/FileStorage/FileStorageRequestBuilder.cs
index 17b0fca98be..4b7c35f1d67 100644
--- a/src/Microsoft.Graph/Generated/Storage/FileStorage/FileStorageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/FileStorage/FileStorageRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.FileStorage> PatchAsync(global::Microsoft.Graph.Models.FileStorage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.FileStorage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/Settings/Quota/QuotaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/Settings/Quota/QuotaRequestBuilder.cs
index 7021f7690fc..a4ce24d930c 100644
--- a/src/Microsoft.Graph/Generated/Storage/Settings/Quota/QuotaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/Settings/Quota/QuotaRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedStorageQuota> PatchAsync(global::Microsoft.Graph.Models.UnifiedStorageQuota body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedStorageQuota body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
index df66bcb0795..3dbe9258cfc 100644
--- a/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown> PatchAsync(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/ServicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/ServicesRequestBuilder.cs
index 68962f94f58..9f25e73d273 100644
--- a/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/ServicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/Settings/Quota/Services/ServicesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ServicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown> PostAsync(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/Settings/SettingsRequestBuilder.cs
index 383f382b95c..24ba970f236 100644
--- a/src/Microsoft.Graph/Generated/Storage/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/Settings/SettingsRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.StorageSettings> PatchAsync(global::Microsoft.Graph.Models.StorageSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.StorageSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Storage/StorageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Storage/StorageRequestBuilder.cs
index b4030fa9b74..ce01654fefe 100644
--- a/src/Microsoft.Graph/Generated/Storage/StorageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Storage/StorageRequestBuilder.cs
@@ -86,7 +86,7 @@ public StorageRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.Storage> PatchAsync(global::Microsoft.Graph.Models.Storage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -128,7 +128,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Storage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/SubscribedSkus/Item/SubscribedSkuItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/SubscribedSkus/Item/SubscribedSkuItemRequestBuilder.cs
index 457c3dbf85c..d227a0c8c7d 100644
--- a/src/Microsoft.Graph/Generated/SubscribedSkus/Item/SubscribedSkuItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/SubscribedSkus/Item/SubscribedSkuItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SubscribedSku> PatchAsync(global::Microsoft.Graph.Models.SubscribedSku body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SubscribedSku body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/SubscribedSkus/SubscribedSkusRequestBuilder.cs b/src/Microsoft.Graph/Generated/SubscribedSkus/SubscribedSkusRequestBuilder.cs
index 029a30308f1..5ed8ed4aa21 100644
--- a/src/Microsoft.Graph/Generated/SubscribedSkus/SubscribedSkusRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/SubscribedSkus/SubscribedSkusRequestBuilder.cs
@@ -88,7 +88,7 @@ public SubscribedSkusRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.SubscribedSku> PostAsync(global::Microsoft.Graph.Models.SubscribedSku body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -130,7 +130,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SubscribedSku body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Subscriptions/Item/SubscriptionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
index 3e0658f95cd..7d312192aef 100644
--- a/src/Microsoft.Graph/Generated/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Subscriptions/Item/SubscriptionItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Subscription> PatchAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Subscriptions/SubscriptionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Subscriptions/SubscriptionsRequestBuilder.cs
index fdb3e7de49e..c9d964ee72f 100644
--- a/src/Microsoft.Graph/Generated/Subscriptions/SubscriptionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Subscriptions/SubscriptionsRequestBuilder.cs
@@ -89,7 +89,7 @@ public SubscriptionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Subscription> PostAsync(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -131,7 +131,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Subscription body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesGetResponse.cs
index 6291973db8c..a906733f8e7 100644
--- a/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesResponse.cs
index 3e8cd6aaab9..771d61c683e 100644
--- a/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Teams.GetA
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchivePostRequestBody.cs
index fef6f494dc3..a2a69f5a88c 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchiveRequestBuilder.cs
index b8e485fc4e2..e8de6800b59 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Archive.ArchivePo
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/ChannelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/ChannelsRequestBuilder.cs
index fbe8b60b546..a3d99aa5c9e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/ChannelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/ChannelsRequestBuilder.cs
@@ -107,7 +107,7 @@ public ChannelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Channel> PostAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
index c6d0b98923c..9cae1de750d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
index 4cbb1882f0b..afbf6a2ccc2 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Teams.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index 58cb4965a87..b7b8cfa7362 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index a7660b7ada2..39928618dd8 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Te
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
index c871ff8b1d5..70648212513 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
index af14755c417..926aca3af1a 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
index bc4a0f9600c..5139298de43 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
index 5b4156bd18d..e1db5efb809 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Teams.Item.Channels.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
index d8a6e402dcf..a39a256cde5 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
@@ -106,7 +106,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index 77aadbef756..5f4ddba9eaf 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
index 877eb8a566b..d5533cc7fee 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
index d7410ce2abd..caa5a2e5241 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
index 5b22467887c..6578ba5a466 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
index e46395fbc9e..0e2b9893837 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Teams.Item.Channel
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
index 16093d4efc7..0174dc6081c 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
index 1a1d7b740e5..f0fd6ea4d42 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Arc
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/ChannelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/ChannelItemRequestBuilder.cs
index 927bf336dca..66e2d709ff2 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/ChannelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/ChannelItemRequestBuilder.cs
@@ -171,7 +171,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -232,7 +232,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index 6c0b701c575..4eae6ad63d0 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index b4e182331b7..ce4ffd63265 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
index c66adc9075d..7b1da36c3b3 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
index 5d1f597c5e4..b77d323fd21 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostResponse.cs
index 66fa64c60ed..abb31a1fb47 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
index 8903b7837a6..b0c1983a606 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddResponse.cs
index e90f889aa7c..42cfba118ad 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Teams.Item.Channels.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index cbb270ff3ac..69605f8b404 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/MembersRequestBuilder.cs
index 0138f9241e3..924c6507afc 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/MembersRequestBuilder.cs
@@ -107,7 +107,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
index 4f3daf22b05..277da9b52da 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
index a710a760a21..2f808276ec7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
index 4829d2e3278..34cd23e4cc7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
index b0b33323be9..a24ed99c3f8 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Teams.Item.Channel
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
index 636ce85ae36..ba01d31fe2e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
index a3557af48f1..c43977ac357 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Teams.Item.Channels
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index bb7e5746fe9..fdadf6503f7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -134,7 +134,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -195,7 +195,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 6e113b8ce04..e2320d03adb 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index bbb3a7ba059..ca845d252a5 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 16e9bf82f07..4e064888460 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 460e61b09e3..f61d3ae738e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index 0a592cbf305..d839ba59c73 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Teams.Item.Channels
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index 96e93b0af09..73fc6974e11 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index a07382646b2..9b8af58e9d6 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -94,7 +94,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 5862af4f278..75ac7ff914e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 1da9b23c154..8d132a897d1 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index f58fe7557db..adcb65ddfb9 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index c51b6b64f97..a2a251936e9 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Mes
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 54aa87159fe..e7df6e51620 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 1d8d2f0575c..fab5049b5ab 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Mes
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index 412850ccbe4..c9820ea6d2d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -84,8 +84,8 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ChatMessageCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.ChatMessageCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Send a new reply to a chatMessage in a specified channel.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/chatmessage-post-replies?view=graph-rest-1.0" />
+        /// Create a new reply to a chatMessage in a specified channel.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/channel-post-messagereply?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ChatMessage"/></returns>
         /// <param name="body">The request body</param>
@@ -101,7 +101,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Send a new reply to a chatMessage in a specified channel.
+        /// Create a new reply to a chatMessage in a specified channel.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 0c0584d32e0..ec37d9c414b 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 3942e344ecc..8483aabe3ce 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Mes
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 8a46f888146..eb41f2d9bfb 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index c49713f2984..2fc34fb1d5d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Mes
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
index fb4aaa14aec..ee57a41fc72 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
@@ -84,8 +84,8 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.ChatMessageCollectionResponse>(requestInfo, global::Microsoft.Graph.Models.ChatMessageCollectionResponse.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Send a new chatMessage in the specified channel.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/channel-post-messages?view=graph-rest-1.0" />
+        /// Send a new chatMessage in the specified channel or a chat.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/chatmessage-post?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.ChatMessage"/></returns>
         /// <param name="body">The request body</param>
@@ -101,7 +101,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -129,7 +129,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Send a new chatMessage in the specified channel.
+        /// Send a new chatMessage in the specified channel or a chat.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index 5dda1ab0686..3e1a1998ea7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -110,7 +110,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -171,7 +171,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index f7282dd3c3d..e4a25d3a279 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -94,7 +94,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index b57b06453fd..3fd4d08312d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
index 913449d8600..34c14fcd74e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Clone/ClonePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Clone/ClonePostRequestBody.cs
index ee63d2ee41d..cf3741b67e2 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Clone/ClonePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Clone/ClonePostRequestBody.cs
@@ -113,7 +113,7 @@ public ClonePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Clone.ClonePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Clone.ClonePostRequestBody();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("classification", Classification);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Clone/CloneRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Clone/CloneRequestBuilder.cs
index 2041ba02352..818d8a747f8 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Clone/CloneRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Clone/CloneRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Clone.ClonePostRe
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
index 50ce9603f57..52c850ceef2 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -95,7 +95,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
index 2f9431243a7..80043e84ef6 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
index 555f1745213..5822a556f3f 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
@@ -53,7 +53,7 @@ public UpgradePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
index 31b7f3fba2d..3f1ff9b9971 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.InstalledApps.Ite
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostRequestBody.cs
index 28d95009cfb..159d50b3a95 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostResponse.cs
index ac59fd7b9ff..049b3ee462d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddRequestBuilder.cs
index 83af16d0336..a6310ec785a 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Teams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Teams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddResponse.cs
index ef545c45bf3..ddc8d6fc44b 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Teams.Item.Members.Ad
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index 252544ccc9b..13d6170543a 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/MembersRequestBuilder.cs
index 70ec571a81f..c44c55bcd63 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/MembersRequestBuilder.cs
@@ -107,7 +107,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -149,7 +149,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostRequestBody.cs
index 8e6950fef08..72efe0ac575 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostResponse.cs
index 7daa60ce7a8..fe51df2ff7a 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveRequestBuilder.cs
index fd1ae0218e7..435fb02bb40 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveResponse.cs
index 416a1224ba4..e9c3f810682 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Teams.Item.Members
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
index c6ecebc1c78..563a799f57e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PatchAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Operations/OperationsRequestBuilder.cs
index d8376744111..4b72e84087c 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PostAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 1e480072032..e4769502c38 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index 131a15648cc..a4f48723e6a 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Photo/PhotoRequestBuilder.cs
index 795cbf64ee0..0d5d8f0a338 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Photo/PhotoRequestBuilder.cs
@@ -82,7 +82,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -124,7 +124,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Photo/Value/ContentRequestBuilder.cs
index 07631c94672..4f868d31ca3 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Photo/Value/ContentRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
index 65561bedc3f..068ff86cac0 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
index 029c9150031..4ec01764a36 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
index 076e5d4c58a..61184fffdee 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
index 022604d436a..2c93252ae4e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Teams.Item.PrimaryCha
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
index 0d53dc0f8ed..f02c20b8b83 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index 297c9ac7a25..b2ef9781e9f 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
index 25b1960da90..3b5a4d24b0e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
index b9babb0851a..03afb242671 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
index db28ea8901a..76a23d1cb76 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
index 45801d26c27..14e8bd81892 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Teams.Item.Primary
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
index 69ed6e6e3e2..da0bcd7f508 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
index 8024a8b45cb..906e072d2a7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Ar
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index 8abc038746b..e2aba2e893b 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index dadbbb20978..db76a43afc9 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
index 88654a9e59a..dedcbc0ce71 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
index 8bb609a7680..8187dd71c46 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
index 61e206c48c3..88cdfdf5ef4 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
index f0bbe535327..f773ede16cf 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddResponse.cs
index 825a909fd1a..39501926b7c 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Teams.Item.PrimaryCha
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
index 2501a52a395..e177c37f848 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
index efa40f8a2ca..b2e679b7d53 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
index 8e78d5e3cf2..e98d2ef8ace 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
index 8771ae16b2e..c2987a0d8f5 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
index 35ca70943d3..49fc314e9a6 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
index 94374db91b8..5a0eba66285 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Teams.Item.Primary
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
index f025bbd40f6..01c8bd7e803 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
index ab3354a5fbc..282fb6d7c4b 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Teams.Item.PrimaryC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
index 631dc03ef93..4da513423d2 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 52974b951d3..578b9edd43c 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 5b0365a6e5d..aa7ce1f6b39 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 219f894e1e1..242a970bc74 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 80691c47ed4..311e5c90f69 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
index 68efaad69cf..fe288e3c78c 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Teams.Item.PrimaryC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index 4928de8b38e..33e93301efd 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index ffaf88f1a7c..aafabc38d10 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 5e84de390ed..16f6c1e8cc7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 1321199c0ed..b4d830fde78 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index f0bc3acac19..77ac6c25e63 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 196fc5f6647..c4e30ce5149 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Me
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 3fa5df6a21e..fde56bd7e59 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 13d6a79f9e3..217a0ef2b2c 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Me
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
index a1c584c983f..b70298de463 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 76cb3d66a8b..de30b538a29 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 841fd1da5cc..f116d9e21cf 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Me
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index f0af10857e2..b29efa87d7b 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 7ac3faf5d9b..d612ad6f624 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Me
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
index af1f63d0e89..6413eb6264e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
index 8508b364a96..a1cbd551dbd 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
@@ -169,7 +169,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -230,7 +230,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index 414d8835139..2d5bf212488 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index 532a84d905c..7f8713195a5 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
index 65e0e20c848..0cbb0da64d6 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
index b7441688f94..c47d8184ae7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
index ea0308d0431..0457a0a497a 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DayNotesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.DayNote> PostAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
index 34cf7db544e..cc201946e0d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DayNote> PatchAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
index 41e5f8945a1..47db27ac7e0 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PatchAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
index abe2d93bd18..e468d25e4bb 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public OfferShiftRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PostAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
index da8359afd60..9e17eeb9e83 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PatchAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
index 25b1fcab74b..5879ef6fbd0 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public OpenShiftChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PostAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
index 4386a154479..7164c4d2bf7 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShift> PatchAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
index 099f2f3bc1a..b09e0a68b1f 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
@@ -95,7 +95,7 @@ public OpenShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OpenShift> PostAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/ScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/ScheduleRequestBuilder.cs
index 1b7355d4b7a..c4af2afca93 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/ScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/ScheduleRequestBuilder.cs
@@ -170,7 +170,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Schedule> PutAsync(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -231,7 +231,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
index f60a220e8ab..f46ce30ad83 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PatchAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
index 0acd7b0d43e..c03eeee2250 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SchedulingGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PostAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/SharePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/SharePostRequestBody.cs
index 75eaa9f2a0d..e9f0588497a 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/SharePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/SharePostRequestBody.cs
@@ -54,7 +54,7 @@ public SharePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Schedule.Share.SharePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Schedule.Share.SharePostRequestBody();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteBoolValue("notifyTeam", NotifyTeam);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/ShareRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/ShareRequestBuilder.cs
index ba7248809db..02ba019b79e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/ShareRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Share/ShareRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Schedule.Share.Sh
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
index 38418183457..b5c99f6afdc 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Shift> PatchAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
index 2c51dcf7fc9..b46170e3754 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
@@ -95,7 +95,7 @@ public ShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Shift> PostAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
index 905b81598a5..85fcc626fad 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PatchAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
index 6b0d2ab9af1..2b52f0daa9d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public SwapShiftsChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PostAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
index ff3641bc63e..de7fdf9a5ab 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
@@ -75,7 +75,7 @@ public ClockInPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteStringValue("onBehalfOfUserId", OnBehalfOfUserId);
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
index 6c7a2fb2388..8680bcbeffb 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
@@ -52,7 +52,7 @@ public ClockInRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
index 26c0e54f6ed..c902cf8c591 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
@@ -59,7 +59,7 @@ public ClockOutPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
index aed160f0136..02878afca46 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
@@ -51,7 +51,7 @@ public ClockOutRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
index def757fbda7..bc055c01421 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public EndBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
index a64db9dbecb..c8dc420e488 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public EndBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
index 431f2e06aff..32e7df089da 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public StartBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
index 6d429f3abc2..141e6627b4b 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public StartBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
index 8e3d284dc8b..986617f5609 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
@@ -121,7 +121,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeCard> PatchAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -182,7 +182,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
index 157e46bddc5..fa4a3737341 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
@@ -101,7 +101,7 @@ public TimeCardsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
index f6d77f31b4f..74f2ae7d75b 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PatchAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
index 3624b0cfd52..5d87bca9242 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TimeOffReasonsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PostAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
index b6dcdc96944..f0a26850c8e 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PatchAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
index 7327ca4bf5f..7d6d30b0ca1 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TimeOffRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PostAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
index 3ea2f6eeb1d..dffa0c15254 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOff> PatchAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
index 862fe2c2314..a2863bd1abb 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
@@ -95,7 +95,7 @@ public TimesOffRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeOff> PostAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index 99c818b7124..9f4b7736d6d 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index d70e0837d1d..c59d53b1e94 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teams.Item.SendActivityNotif
         public async Task PostAsync(global::Microsoft.Graph.Teams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
index 86c4870eb4d..59cd9e2ae90 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PatchAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/MembersRequestBuilder.cs
index d754d03805a..ccb9b971ce0 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/Members/MembersRequestBuilder.cs
@@ -95,7 +95,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PostAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
index 32846b0fadf..5683d333b08 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
@@ -105,7 +105,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PatchAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -166,7 +166,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/Tags/TagsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/Tags/TagsRequestBuilder.cs
index 493f6c1216d..984a9f1fc96 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/Tags/TagsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/Tags/TagsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TagsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PostAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/Item/TeamItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/Item/TeamItemRequestBuilder.cs
index c4a0f5e2e74..1c9f1d3dbd1 100644
--- a/src/Microsoft.Graph/Generated/Teams/Item/TeamItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/Item/TeamItemRequestBuilder.cs
@@ -206,7 +206,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Team> PatchAsync(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -267,7 +267,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teams/TeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teams/TeamsRequestBuilder.cs
index d0f26c732a0..80337581a25 100644
--- a/src/Microsoft.Graph/Generated/Teams/TeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teams/TeamsRequestBuilder.cs
@@ -101,7 +101,7 @@ public TeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Team> PostAsync(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -143,7 +143,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TeamsTemplates/Item/TeamsTemplateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TeamsTemplates/Item/TeamsTemplateItemRequestBuilder.cs
index 9dff14c6a3f..3d0a0dbc23a 100644
--- a/src/Microsoft.Graph/Generated/TeamsTemplates/Item/TeamsTemplateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TeamsTemplates/Item/TeamsTemplateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTemplate> PatchAsync(global::Microsoft.Graph.Models.TeamsTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TeamsTemplates/TeamsTemplatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/TeamsTemplates/TeamsTemplatesRequestBuilder.cs
index a2a1792ae0c..8a487cf45eb 100644
--- a/src/Microsoft.Graph/Generated/TeamsTemplates/TeamsTemplatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TeamsTemplates/TeamsTemplatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public TeamsTemplatesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.TeamsTemplate> PostAsync(global::Microsoft.Graph.Models.TeamsTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTemplate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/DeletedChatsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/DeletedChatsRequestBuilder.cs
index f71d0629f4d..49419dbf379 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/DeletedChatsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/DeletedChatsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeletedChatsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeletedChat> PostAsync(global::Microsoft.Graph.Models.DeletedChat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeletedChat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/Item/DeletedChatItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/Item/DeletedChatItemRequestBuilder.cs
index 2859c919f7c..6a102756626 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/Item/DeletedChatItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedChats/Item/DeletedChatItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeletedChat> PatchAsync(global::Microsoft.Graph.Models.DeletedChat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeletedChat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/DeletedTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/DeletedTeamsRequestBuilder.cs
index ca3e29dedf2..dbc592a1f52 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/DeletedTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/DeletedTeamsRequestBuilder.cs
@@ -100,7 +100,7 @@ public DeletedTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.DeletedTeam> PostAsync(global::Microsoft.Graph.Models.DeletedTeam body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeletedTeam body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
index a89154076fc..06665a4bd3c 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesResponse.cs
index 37cea251b6f..dff0e1d5008 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Teamwork.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/ChannelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/ChannelsRequestBuilder.cs
index 3f60262d3a9..c89e07e5f17 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/ChannelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/ChannelsRequestBuilder.cs
@@ -105,7 +105,7 @@ public ChannelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Channel> PostAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
index 1fa7e704829..84c458fc264 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
index 6058f0c6a2d..338d62012af 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Teamwork.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index 6bedf52fb9a..6db7f22c609 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index f2ad37b9fd2..74617f9e093 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Te
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
index c72b0519f68..ff7db6b4929 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
index 96b978bdd5f..7723715d80f 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
index bebe314384e..63083718d81 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
index 738c239c2fb..892db814114 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Teamwork.DeletedTeams
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
index 3757fc76abc..7cd979845bc 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index d6aa174e3ad..51028c78e1e 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
index 6a52eae24ba..58e70d7b76d 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
index 0f94949cafb..37f62fbd497 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
index 737b4959b65..a838d210e06 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
index 131197727c5..923ff6b7e0f 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Teamwork.DeletedTe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
index 325fde1ada8..9c60071f7f4 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
index 60ee2504e33..50d0511e8b5 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.C
         public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
index 499f3b73631..94e7752cfe7 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index 905b2cca28d..5bb6488f7ef 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index e20e4a9a45f..06c30f40401 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
index 84a7bfa2757..b1d4ac8b7df 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
index fae798a912e..98e0b48599b 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
index 74d21453f03..2f6e0e3ca90 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
index d0801d70e04..6f000f29fe2 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
index 85cfbc87a38..d87d1d1eaff 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Teamwork.DeletedTeams
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index ef6ea0b4fb1..1438030b8d3 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
index 5d1e4f6aced..02a1c39aa79 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
index 13dda038708..97e7ffd07ab 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
index c6f37e3bf1d..ab2c745d03c 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
index 165ee25ad66..da432a6a8d0 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
index 5ff435a18c6..900a61262aa 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Teamwork.DeletedTe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
index 2532d52e405..fe439e6b1ff 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
index 4b3ef90b44b..bb8430e6867 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Teamwork.DeletedTea
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index 4c1ceb927da..e18e25a5d55 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 138e51ebfd4..db803ea1e07 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index feabd33246b..ca1f2f5616a 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index b4863fee004..dafb6fec564 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 3fedfdf2f6d..d6471510d70 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index 03c056c4816..fd4feadef49 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Teamwork.DeletedTea
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index a8b4397c65d..e91adeaeee0 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index dd380dc57bd..8d6e69d868d 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 30de5b9ed39..f1ef1d40c8e 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 5f234167190..2495de1557e 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index c854413a40e..54d40918c81 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 7bf32630fd8..96e69f2b2d3 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.C
         public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 9f38d66e902..b93371fd615 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index b93832cde9f..caad4bca769 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.C
         public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index 6ffb22e8a26..a8e92e98cda 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index a5e04c80f38..e5616ef8d93 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 6df62d08325..017141710ea 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.C
         public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 21b0f66f8ea..06af7e20ce2 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 7ffa0c245b8..6203fefd7e6 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.C
         public async Task PostAsync(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.DeletedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
index af641af544a..b20cdcf18fa 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index e2a05933295..9ea08f92a84 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index 5ad29e19e4d..32a87fc4818 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index 3c2b7776e54..4aac19b71ca 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
index de67e47be8a..f45da85e9bb 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/DeletedTeamItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/DeletedTeamItemRequestBuilder.cs
index 74a14b68a91..6e0685ddd0f 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/DeletedTeamItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/DeletedTeams/Item/DeletedTeamItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeletedTeam> PatchAsync(global::Microsoft.Graph.Models.DeletedTeam body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeletedTeam body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsPostRequestBody.cs
index 586544822f7..27ae4750f7d 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationToRecipientsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Teamwork.SendActivityNotificationToRecipients.SendActivityNotificationToRecipientsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Teamwork.SendActivityNotificationToRecipients.SendActivityNotificationToRecipientsPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsRequestBuilder.cs
index eba676d0d1d..7e21cc27867 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/SendActivityNotificationToRecipients/SendActivityNotificationToRecipientsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Teamwork.SendActivityNotific
         public async Task PostAsync(global::Microsoft.Graph.Teamwork.SendActivityNotificationToRecipients.SendActivityNotificationToRecipientsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamw
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Teamwork.SendActivityNotificationToRecipients.SendActivityNotificationToRecipientsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/TeamsAppSettings/TeamsAppSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/TeamsAppSettings/TeamsAppSettingsRequestBuilder.cs
index ec416e5e3df..d3649f7f32d 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/TeamsAppSettings/TeamsAppSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/TeamsAppSettings/TeamsAppSettingsRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppSettings> PatchAsync(global::Microsoft.Graph.Models.TeamsAppSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/TeamworkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/TeamworkRequestBuilder.cs
index ccb3bebc71f..4850c73d78d 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/TeamworkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/TeamworkRequestBuilder.cs
@@ -105,7 +105,7 @@ public TeamworkRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Teamwork> PatchAsync(global::Microsoft.Graph.Models.Teamwork body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Teamwork body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/Item/WorkforceIntegrationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/Item/WorkforceIntegrationItemRequestBuilder.cs
index eedee8390ac..426accab4f7 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/Item/WorkforceIntegrationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/Item/WorkforceIntegrationItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkforceIntegration> PatchAsync(global::Microsoft.Graph.Models.WorkforceIntegration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkforceIntegration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/WorkforceIntegrationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/WorkforceIntegrationsRequestBuilder.cs
index b852a6db9c9..57391c7211f 100644
--- a/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/WorkforceIntegrationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Teamwork/WorkforceIntegrations/WorkforceIntegrationsRequestBuilder.cs
@@ -95,7 +95,7 @@ public WorkforceIntegrationsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.WorkforceIntegration> PostAsync(global::Microsoft.Graph.Models.WorkforceIntegration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WorkforceIntegration body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/DelegatedAdminCustomersRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/DelegatedAdminCustomersRequestBuilder.cs
index 06da6779bc4..a18c91a3430 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/DelegatedAdminCustomersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/DelegatedAdminCustomersRequestBuilder.cs
@@ -94,7 +94,7 @@ public DelegatedAdminCustomersRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminCustomer> PostAsync(global::Microsoft.Graph.Models.DelegatedAdminCustomer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminCustomer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/DelegatedAdminCustomerItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/DelegatedAdminCustomerItemRequestBuilder.cs
index 6aff3542b9f..fdba8cfeffc 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/DelegatedAdminCustomerItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/DelegatedAdminCustomerItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminCustomer> PatchAsync(global::Microsoft.Graph.Models.DelegatedAdminCustomer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminCustomer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/Item/DelegatedAdminServiceManagementDetailItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/Item/DelegatedAdminServiceManagementDetailItemRequestBuilder.cs
index 690ffb10485..a36854c0819 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/Item/DelegatedAdminServiceManagementDetailItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/Item/DelegatedAdminServiceManagementDetailItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail> PatchAsync(global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/ServiceManagementDetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/ServiceManagementDetailsRequestBuilder.cs
index 8f13f9f8fba..d40e84ec41e 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/ServiceManagementDetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminCustomers/Item/ServiceManagementDetails/ServiceManagementDetailsRequestBuilder.cs
@@ -94,7 +94,7 @@ public ServiceManagementDetailsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail> PostAsync(global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminServiceManagementDetail body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/DelegatedAdminRelationshipsRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/DelegatedAdminRelationshipsRequestBuilder.cs
index a309a86e5e0..f0551bc3801 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/DelegatedAdminRelationshipsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/DelegatedAdminRelationshipsRequestBuilder.cs
@@ -95,7 +95,7 @@ public DelegatedAdminRelationshipsRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminRelationship> PostAsync(global::Microsoft.Graph.Models.DelegatedAdminRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/AccessAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/AccessAssignmentsRequestBuilder.cs
index d3b6cade94f..309552a1cc5 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/AccessAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/AccessAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AccessAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment> PostAsync(global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/Item/DelegatedAdminAccessAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/Item/DelegatedAdminAccessAssignmentItemRequestBuilder.cs
index 6aaefba8da0..0e2a7a6a93e 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/Item/DelegatedAdminAccessAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/AccessAssignments/Item/DelegatedAdminAccessAssignmentItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment> PatchAsync(global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminAccessAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/DelegatedAdminRelationshipItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/DelegatedAdminRelationshipItemRequestBuilder.cs
index f7023f3f891..7a143999b74 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/DelegatedAdminRelationshipItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/DelegatedAdminRelationshipItemRequestBuilder.cs
@@ -117,7 +117,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminRelationship> PatchAsync(global::Microsoft.Graph.Models.DelegatedAdminRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -178,7 +178,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/Item/DelegatedAdminRelationshipOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/Item/DelegatedAdminRelationshipOperationItemRequestBuilder.cs
index b073acd8b12..ebe3c7a1728 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/Item/DelegatedAdminRelationshipOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/Item/DelegatedAdminRelationshipOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation> PatchAsync(global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/OperationsRequestBuilder.cs
index 543dcfaba69..8251688b11f 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Operations/OperationsRequestBuilder.cs
@@ -94,7 +94,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation> PostAsync(global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminRelationshipOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/Item/DelegatedAdminRelationshipRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/Item/DelegatedAdminRelationshipRequestItemRequestBuilder.cs
index fe093f97c3b..43ee06d6756 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/Item/DelegatedAdminRelationshipRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/Item/DelegatedAdminRelationshipRequestItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest> PatchAsync(global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/RequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/RequestsRequestBuilder.cs
index eea8fdd5c7c..6a4a50c06a9 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/RequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/DelegatedAdminRelationships/Item/Requests/RequestsRequestBuilder.cs
@@ -95,7 +95,7 @@ public RequestsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest> PostAsync(global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DelegatedAdminRelationshipRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/JoinRequest/JoinRequestRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/JoinRequest/JoinRequestRequestBuilder.cs
index 5af6bb90839..0b6e5cd54fa 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/JoinRequest/JoinRequestRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/JoinRequest/JoinRequestRequestBuilder.cs
@@ -76,7 +76,7 @@ public JoinRequestRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MultiTenantOrganizationJoinRequestRecord> PatchAsync(global::Microsoft.Graph.Models.MultiTenantOrganizationJoinRequestRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -118,7 +118,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MultiTenantOrganizationJoinRequestRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/MultiTenantOrganizationRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/MultiTenantOrganizationRequestBuilder.cs
index 6d5cb2f89d3..d0d851bcf00 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/MultiTenantOrganizationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/MultiTenantOrganizationRequestBuilder.cs
@@ -71,8 +71,8 @@ public MultiTenantOrganizationRequestBuilder(string rawUrl, IRequestAdapter requ
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.MultiTenantOrganization>(requestInfo, global::Microsoft.Graph.Models.MultiTenantOrganization.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// Create a new multitenant organization. By default, the creator tenant becomes an owner tenant upon successful creation. Only owner tenants can manage a multitenant organization.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/tenantrelationship-put-multitenantorganization?view=graph-rest-1.0" />
+        /// Update the properties of a multitenant organization.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/multitenantorganization-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.MultiTenantOrganization"/></returns>
         /// <param name="body">The request body</param>
@@ -88,7 +88,7 @@ public MultiTenantOrganizationRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.MultiTenantOrganization> PatchAsync(global::Microsoft.Graph.Models.MultiTenantOrganization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<gl
             return requestInfo;
         }
         /// <summary>
-        /// Create a new multitenant organization. By default, the creator tenant becomes an owner tenant upon successful creation. Only owner tenants can manage a multitenant organization.
+        /// Update the properties of a multitenant organization.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="body">The request body</param>
@@ -130,7 +130,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MultiTenantOrganization body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/Item/MultiTenantOrganizationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/Item/MultiTenantOrganizationMemberItemRequestBuilder.cs
index 8b31d9f5abe..ed8337ef554 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/Item/MultiTenantOrganizationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/Item/MultiTenantOrganizationMemberItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MultiTenantOrganizationMember> PatchAsync(global::Microsoft.Graph.Models.MultiTenantOrganizationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MultiTenantOrganizationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/TenantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/TenantsRequestBuilder.cs
index 09db7e8348a..56e46480df9 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/TenantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/MultiTenantOrganization/Tenants/TenantsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TenantsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.MultiTenantOrganizationMember> PostAsync(global::Microsoft.Graph.Models.MultiTenantOrganizationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MultiTenantOrganizationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/TenantRelationships/TenantRelationshipsRequestBuilder.cs b/src/Microsoft.Graph/Generated/TenantRelationships/TenantRelationshipsRequestBuilder.cs
index 22b81e9efa9..9690ee274e3 100644
--- a/src/Microsoft.Graph/Generated/TenantRelationships/TenantRelationshipsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/TenantRelationships/TenantRelationshipsRequestBuilder.cs
@@ -114,7 +114,7 @@ public TenantRelationshipsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.TenantRelationship> PatchAsync(global::Microsoft.Graph.Models.TenantRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TenantRelationship body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Delta/DeltaGetResponse.cs
index aa11e340a52..4c710a340b4 100644
--- a/src/Microsoft.Graph/Generated/Users/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.User>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Delta/DeltaResponse.cs
index 8771b52e071..e817a2471c7 100644
--- a/src/Microsoft.Graph/Generated/Users/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Delta.DeltaGe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
index eb966b0f973..a46d17e4c6b 100644
--- a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetAvailableExtensionPropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isSyncedFromOnPremises", IsSyncedFromOnPremises);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
index fbae2338389..bb187b40911 100644
--- a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAvailableExtensionPropertiesPostResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ExtensionProperty>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
index 059ed8d161b..8655b994b02 100644
--- a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostResponse> PostAsGetAvailableExtensionPropertiesPostResponseAsync(global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetAvailableExtensionPropertiesRequestBuilder(string rawUrl, IRequestAdap
         public async Task<global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse> PostAsync(global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
index a03811cbfac..8f70ed0cdd8 100644
--- a/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetAvailableExtensionProperties/GetAvailableExtensionPropertiesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAvailableExtensionPropertiesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.GetAvailableExtensionProperties.GetAvailableExtensionPropertiesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostRequestBody.cs
index d76432049a9..36bd1bb5630 100644
--- a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostRequestBody.cs
@@ -68,7 +68,7 @@ public GetByIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.GetByIds.GetByIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.GetByIds.GetByIdsPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteCollectionOfPrimitiveValues<string>("types", Types);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostResponse.cs
index 71c76863bb1..3f20d483224 100644
--- a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetByIdsPostResponse : global::Microsoft.Graph.Models.BaseC
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.GetByIds.GetByIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.GetByIds.GetByIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.DirectoryObject>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsRequestBuilder.cs
index ecd95aaa5b0..edf7910c863 100644
--- a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Users.GetByIds.GetByIdsPostResponse> PostAsGetByIdsPostResponseAsync(global::Microsoft.Graph.Users.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetByIdsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Users.GetByIds.GetByIdsResponse> PostAsync(global::Microsoft.Graph.Users.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.GetByIds.GetByIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsResponse.cs b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsResponse.cs
index ec18d3b217e..e4dc03e9273 100644
--- a/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/GetByIds/GetByIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetByIdsResponse : global::Microsoft.Graph.Users.GetByIds.G
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.GetByIds.GetByIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.GetByIds.GetByIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Activities/ActivitiesRequestBuilder.cs
index dc33077eab2..91c31774c67 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Activities/ActivitiesRequestBuilder.cs
@@ -99,7 +99,7 @@ public ActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.UserActivity> PostAsync(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs
index fbc2397f722..870e184b507 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/HistoryItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HistoryItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ActivityHistoryItem> PostAsync(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs
index 5ee9f2c34e8..c23627abff4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/HistoryItems/Item/ActivityHistoryItemItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ActivityHistoryItem> PatchAsync(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ActivityHistoryItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/UserActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/UserActivityItemRequestBuilder.cs
index 97d5e2cfb38..f2c33e99b4a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/UserActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Activities/Item/UserActivityItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserActivity> PatchAsync(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentGetResponse.cs
index ad1e774baad..692a9993c41 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentGetResponse.cs
@@ -36,7 +36,7 @@ public partial class RecentGetResponse : global::Microsoft.Graph.Models.BaseColl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Activities.Recent.RecentGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Activities.Recent.RecentGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.UserActivity>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentResponse.cs
index d31ab597a7a..13c45e0eeb9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Activities/Recent/RecentResponse.cs
@@ -20,7 +20,7 @@ public partial class RecentResponse : global::Microsoft.Graph.Users.Item.Activit
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Activities.Recent.RecentResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Activities.Recent.RecentResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
index 696cfabfc40..17b3cec0ca5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/AppRoleAssignmentsRequestBuilder.cs
@@ -95,7 +95,7 @@ public AppRoleAssignmentsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PostAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
index e47a6ba0315..138c76b6aa2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/AppRoleAssignments/Item/AppRoleAssignmentItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AppRoleAssignment> PatchAsync(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AppRoleAssignment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicensePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicensePostRequestBody.cs
index 4f75a6dd0a1..e08958f1410 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicensePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicensePostRequestBody.cs
@@ -69,7 +69,7 @@ public AssignLicensePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.AssignLicense.AssignLicensePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.AssignLicense.AssignLicensePostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AssignedLicense>("addLicenses", AddLicenses);
             writer.WriteCollectionOfPrimitiveValues<Guid?>("removeLicenses", RemoveLicenses);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicenseRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicenseRequestBuilder.cs
index df51dfbe587..b443bd67adc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicenseRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/AssignLicense/AssignLicenseRequestBuilder.cs
@@ -52,7 +52,7 @@ public AssignLicenseRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.User> PostAsync(global::Microsoft.Graph.Users.Item.AssignLicense.AssignLicensePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.AssignLicense.AssignLicensePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/AuthenticationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/AuthenticationRequestBuilder.cs
index 8b4366617fc..bb19d43e416 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/AuthenticationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/AuthenticationRequestBuilder.cs
@@ -162,7 +162,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Authentication> PatchAsync(global::Microsoft.Graph.Models.Authentication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -223,7 +223,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Authentication body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs
index f5c6be25613..4ace3cdbd63 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/EmailMethodsRequestBuilder.cs
@@ -94,7 +94,7 @@ public EmailMethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.EmailAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs
index 7db892de8b3..e98aa79fd8f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/EmailMethods/Item/EmailAuthenticationMethodItemRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EmailAuthenticationMethod> PatchAsync(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EmailAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs
index 5da586ae201..195a0d2a186 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/AuthenticationMethodItemRequestBuilder.cs
@@ -80,7 +80,7 @@ public AuthenticationMethodItemRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethod> PatchAsync(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs
index f5a4b652da2..3734e2cd1ef 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordPostRequestBody.cs
@@ -52,7 +52,7 @@ public ResetPasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("newPassword", NewPassword);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs
index 5bed2262e14..488a731060b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/Item/ResetPassword/ResetPasswordRequestBuilder.cs
@@ -52,7 +52,7 @@ public ResetPasswordRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.PasswordResetResponse> PostAsync(global::Microsoft.Graph.Users.Item.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Authentication.Methods.Item.ResetPassword.ResetPasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/MethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/MethodsRequestBuilder.cs
index 4ebcfcefc00..684ba0fc12a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/MethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Methods/MethodsRequestBuilder.cs
@@ -93,7 +93,7 @@ public MethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.AuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs
index 2a9b1f0ed6c..4f46929bd51 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/Item/LongRunningOperationItemRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LongRunningOperation> PatchAsync(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/OperationsRequestBuilder.cs
index 2715e52c225..b98cd0487fb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.LongRunningOperation> PostAsync(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LongRunningOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs
index e2fb46df1a2..37504f2dc32 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/PasswordMethods/PasswordMethodsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PasswordMethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.PasswordAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.PasswordAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PasswordAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs
index 5b27d87c293..6db42b602e2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/Item/PhoneAuthenticationMethodItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PhoneAuthenticationMethod> PatchAsync(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs
index a9a6d79db08..9d3dc7355fe 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/PhoneMethods/PhoneMethodsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PhoneMethodsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.PhoneAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PhoneAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs
index 9fda172d382..736ca1e6c05 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Authentication/TemporaryAccessPassMethods/TemporaryAccessPassMethodsRequestBuilder.cs
@@ -95,7 +95,7 @@ public TemporaryAccessPassMethodsRequestBuilder(string rawUrl, IRequestAdapter r
         public async Task<global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod> PostAsync(global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TemporaryAccessPassAuthenticationMethod body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
index 27d44b10bee..f0bfedb87e6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AllowedCalendarSharingRolesWithUserGetResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
index a3b5efe3963..d3df1a7939c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
@@ -20,7 +20,7 @@ public partial class AllowedCalendarSharingRolesWithUserResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
index ece0909c32b..456b6145433 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
@@ -94,7 +94,7 @@ public CalendarPermissionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PostAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
index 63707614e9a..8425eda9d1a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
@@ -99,7 +99,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PatchAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -160,7 +160,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarRequestBuilder.cs
index 33bd993808f..5607061c227 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarRequestBuilder.cs
@@ -115,7 +115,7 @@ public CalendarRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Calendar> PatchAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs
index 2e11bd4956f..511af3ac437 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaResponse.cs
index f3a3d41e6f3..99876d0ab26 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaGetResponse.cs
index 2479beb3b06..60e604dad5a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaResponse.cs
index fc778d3bc52..4a7113400e6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/EventsRequestBuilder.cs
index 6e5e66a312c..6cfebd9d0b2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/EventsRequestBuilder.cs
@@ -99,7 +99,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
index 130b6b92d3e..726c5f41f06 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
index fbe3da0ac49..50d68bf4b76 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.I
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index ebc4d079e57..b8abedc8d03 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index e2db61bbd16..9d16c688899 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 9ba1cb509df..2e59021858a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
index ecfde19cf91..887f891b2aa 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
index 3f3c0eb2ad6..db9c1aa3e2b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.I
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
index 98b142fdb14..eab2ee924e6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
index ca42f060fb1..c9bc589d3e7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.I
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/EventItemRequestBuilder.cs
index 4ebdf31519b..521a0fbff00 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/EventItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index 087a5fa99bf..4e6eb4ddc25 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index de4b61e982a..b81807d529e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
index 4e045980f00..60970a6d8da 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
index f1472ab42c1..809e75f6e7d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.I
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
index e23b196ff3e..408b6d19a8a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
index 0e21856152e..3e3118fc15d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 1424f84b3cf..e4ee17c5e2e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index 696cc998868..c56fa0aef6c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.I
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index cea12a5fac7..e573e4aa5bf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index 92ab1dfa042..5d2304c6c27 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.I
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
index 25b20d35c53..aae80b54abf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostRequestBody.cs
@@ -91,7 +91,7 @@ public GetSchedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("AvailabilityViewInterval", AvailabilityViewInterval);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("EndTime", EndTime);
             writer.WriteCollectionOfPrimitiveValues<string>("Schedules", Schedules);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs
index ac58b3f671d..aa2dd5eddf7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetSchedulePostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSchedulePostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScheduleInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
index 207a7746130..94f8dbb9280 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostResponse> PostAsGetSchedulePostResponseAsync(global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetScheduleResponse> PostAsync(global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleResponse.cs
index e65d843e6f3..88b349cbf6d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendar/GetSchedule/GetScheduleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetScheduleResponse : global::Microsoft.Graph.Users.Item.Ca
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetScheduleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendar.GetSchedule.GetScheduleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/CalendarGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/CalendarGroupsRequestBuilder.cs
index f22b9d30bdb..08ec2dabd17 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/CalendarGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/CalendarGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.CalendarGroup> PostAsync(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs
index 17c82b85ee5..edb5f6186c5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/CalendarGroupItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarGroup> PatchAsync(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs
index 310e049b8a9..1ec75ad415f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/CalendarsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Calendar> PostAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
index 699b837b9cf..cdbc099ab3b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AllowedCalendarSharingRolesWithUserGetResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
index e779e2aafdb..e96c9a2e383 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
@@ -20,7 +20,7 @@ public partial class AllowedCalendarSharingRolesWithUserResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs
index 06eceb67fb3..b98a69513d1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarItemRequestBuilder.cs
@@ -137,7 +137,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Calendar> PatchAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -198,7 +198,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
index 55cf7724850..905e0f09a44 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarPermissionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PostAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
index c508b9e1b80..ed8447766f9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PatchAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
index 1f193f937c0..05d4b52cdd1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
index b21dea5e2fe..e52b3cbb7f1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
index e030b8d6268..3935c62218f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
index 8b44cf41b61..3296e54aac1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs
index 934c7eafc22..fc7fbc4b3eb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/EventsRequestBuilder.cs
@@ -99,7 +99,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
index 532e2ccc00d..6df39c3d689 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
index fdc6979465b..941a4a695f5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index e184abc673d..a7b3fbe03df 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 87234301489..aa7ad424552 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 66fa331bdf0..1ee79de4dd9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
index 4e23e566853..f93f7db85ee 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
index cad3fbe24b3..2a889d0e8cb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
index 7efaf55e92c..1818fb22643 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
index 3110c934de8..7809d3ce0e3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
index ec67fe0f7d3..833e848be2d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index ede324f183e..e8bcf7aa48d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 4df6df5a1ba..687e5311639 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
index 86e157c659c..1a5ce61dbe6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
index 026a5baa42e..f6aaa32c787 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
index c2611eeeade..1d2c42be6d3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
index aadd1819628..951963c50e8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index c0b7597c766..7b7a099de7f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index ed25ecb5445..f5a3a9ae741 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index 8030fac978b..c8134bf509e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index 951b3ddd8c1..2d7cc0b8b01 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
index a0d79119870..f9ff52db033 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
@@ -91,7 +91,7 @@ public GetSchedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("AvailabilityViewInterval", AvailabilityViewInterval);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("EndTime", EndTime);
             writer.WriteCollectionOfPrimitiveValues<string>("Schedules", Schedules);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
index 22c3680592d..0d10a598e8e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSchedulePostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScheduleInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
index a27c41bb427..5e5dd190d8d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse> PostAsGetSchedulePostResponseAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetScheduleResponse> PostAsync(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
index 933f4e6c5eb..84d68a754ab 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarGroups/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetScheduleResponse : global::Microsoft.Graph.Users.Item.Ca
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetScheduleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarGroups.Item.Calendars.Item.GetSchedule.GetScheduleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaGetResponse.cs
index 7f09594f3a3..ce4ef5fb63a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaResponse.cs
index 17bf430663f..8cf48759922 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/CalendarsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/CalendarsRequestBuilder.cs
index 41e93c1f34c..a0df6cb4c1f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/CalendarsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/CalendarsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Calendar> PostAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
index e26987b94d3..bc5b085e042 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserGetResponse.cs
@@ -36,7 +36,7 @@ public partial class AllowedCalendarSharingRolesWithUserGetResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfEnumValues<global::Microsoft.Graph.Models.CalendarRoleType>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
index 79e642502e6..99b0f5af763 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/AllowedCalendarSharingRolesWithUser/AllowedCalendarSharingRolesWithUserResponse.cs
@@ -20,7 +20,7 @@ public partial class AllowedCalendarSharingRolesWithUserResponse : global::Micro
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.AllowedCalendarSharingRolesWithUser.AllowedCalendarSharingRolesWithUserResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarItemRequestBuilder.cs
index 37426b03bfa..ef6630ece27 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarItemRequestBuilder.cs
@@ -137,7 +137,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Calendar> PatchAsync(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -198,7 +198,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Calendar body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
index df6f375fe38..08db09d2eb9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/CalendarPermissionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public CalendarPermissionsRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PostAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
index a84245e2ed4..2fa2306ce9f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarPermissions/Item/CalendarPermissionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CalendarPermission> PatchAsync(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CalendarPermission body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
index 796b95e1f21..a47e3fa51ce 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.CalendarView.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.CalendarView.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
index 6dc462be5a7..ef710988746 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/CalendarView/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.CalendarView.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.CalendarView.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
index 27eeebff382..1c1fa2aac02 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
index 74ff07099c7..f091f859793 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/EventsRequestBuilder.cs
index dea73ef4ce6..225055e6b04 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/EventsRequestBuilder.cs
@@ -99,7 +99,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
index 43754a8977a..7962af1b51d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
index 388007f27de..b5baddbf358 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Ev
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index 8cc5367d913..4dae2e1749c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 1936b61c267..fa218d51b32 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index bfb93d05238..92904a073c1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
index b045a70f965..5b859e9ebcc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
index afd8ceafaea..db64e443b39 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Ev
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
index 50144d6c511..8712dc89bc1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
index e9c02651d24..af84e242666 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Ev
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
index 56d10339131..d782b2ddbe4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/EventItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index 84dee3228b4..4f5e495a263 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index e4b61f8e1c8..7148e85c616 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
index b63772991f1..efd1a293354 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
index 32bd49be292..fb7e4052ce4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Ev
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
index c55db289966..b92d0d9e332 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
index 90300eb5ecd..aecd6d39060 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Calendar
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 60633784444..fceac7ba2ba 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index ddbe9e2d5f2..8558252a67c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Ev
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index 400e1b4519a..b2b458878aa 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index e4064433a9a..85c42ae73b9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Ev
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
index bbeb4c88dd1..aa7ad32957a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostRequestBody.cs
@@ -91,7 +91,7 @@ public GetSchedulePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody();
         }
         /// <summary>
@@ -114,7 +114,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteIntValue("AvailabilityViewInterval", AvailabilityViewInterval);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("EndTime", EndTime);
             writer.WriteCollectionOfPrimitiveValues<string>("Schedules", Schedules);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
index f0c7a21048e..86a6366a863 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetSchedulePostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetSchedulePostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ScheduleInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
index d037fce0c9d..695fc99e060 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostResponse> PostAsGetSchedulePostResponseAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetScheduleRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetScheduleResponse> PostAsync(global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetSchedulePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
index 07737556321..892eafb3cc4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Calendars/Item/GetSchedule/GetScheduleResponse.cs
@@ -20,7 +20,7 @@ public partial class GetScheduleResponse : global::Microsoft.Graph.Users.Item.Ca
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetScheduleResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Calendars.Item.GetSchedule.GetScheduleResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordPostRequestBody.cs
index f1b12f33b68..608d14aef4a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordPostRequestBody.cs
@@ -68,7 +68,7 @@ public ChangePasswordPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ChangePassword.ChangePasswordPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ChangePassword.ChangePasswordPostRequestBody();
         }
         /// <summary>
@@ -89,7 +89,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("currentPassword", CurrentPassword);
             writer.WriteStringValue("newPassword", NewPassword);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordRequestBuilder.cs
index 14e13cb4d1c..9303ea1725b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ChangePassword/ChangePasswordRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.ChangePassword.Ch
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.ChangePassword.ChangePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.ChangePassword.ChangePasswordPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/ChatsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/ChatsRequestBuilder.cs
index 929e1ed1943..2a105fda152 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/ChatsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/ChatsRequestBuilder.cs
@@ -106,7 +106,7 @@ public ChatsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.Chat> PostAsync(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -148,7 +148,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
index 1ca7df7a085..02c4213c262 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesResponse.cs
index 4da02469a8b..1a3380bf209 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Users.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index e463a807405..986e74375ce 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index 598d5005a6e..05ad9c80fd9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Us
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/ChatItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/ChatItemRequestBuilder.cs
index 53022a321e8..a958f272319 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/ChatItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/ChatItemRequestBuilder.cs
@@ -169,7 +169,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Chat> PatchAsync(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -230,7 +230,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Chat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
index b4a733de05a..a8dd2309b08 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public HideForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.HideForUser.HideForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.HideForUser.HideForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
index ddfceed2f9d..66eb0e90297 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/HideForUser/HideForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.HideFo
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.HideForUser.HideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.HideForUser.HideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
index 27c3db1bd09..10063b9aab4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
index 206a7634f6a..06cdc7ef068 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
index 3545e1e3a12..da648b9e14b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
@@ -53,7 +53,7 @@ public UpgradePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
index 7a115ddfcc2..abf783810cc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Instal
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
index 23b8f9bd776..4573605900b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/LastMessagePreview/LastMessagePreviewRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageInfo> PatchAsync(global::Microsoft.Graph.Models.ChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
index 7aca838356d..d55b8a3f7b6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public MarkChatReadForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
index a21d5de2863..9934e18295f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatReadForUser/MarkChatReadForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.MarkCh
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatReadForUser.MarkChatReadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
index f3fcb688d53..b573ac4838e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserPostRequestBody.cs
@@ -59,7 +59,7 @@ public MarkChatUnreadForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("lastMessageReadDateTime", LastMessageReadDateTime);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
index 8b0df6f4102..23026f0d824 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/MarkChatUnreadForUser/MarkChatUnreadForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.MarkCh
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.MarkChatUnreadForUser.MarkChatUnreadForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostRequestBody.cs
index e5716826b3e..da9c5d5b2a1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostResponse.cs
index cf63b3be81d..4d5553b6de8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddRequestBuilder.cs
index faf263dc680..8fe0a90c400 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddResponse.cs
index 2183328619c..ad175800614 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Users.Item.Chats.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index cdbbaf964b8..4f425f93e90 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/MembersRequestBuilder.cs
index 283839554e8..b0a049c59d8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostRequestBody.cs
index 95916e903f7..84a97359f3b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostResponse.cs
index 6d351353337..13fbd7b8476 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
index 2baae331c8f..2c8e2985b4b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveResponse.cs
index 19ecb8eb388..fb3f8c05743 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Users.Item.Chats.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaGetResponse.cs
index c6065946db2..58db1474edb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaResponse.cs
index 4058f9ed177..6967f066888 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Chats.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index ab7e74ce517..6519e5e9983 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 318063b4319..96fa57e40a4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index e21b9cff25f..50f370fcbd6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 5db694aac33..27a9e7f20c8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 24a4813e111..b8f79cf818a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index 681a78331e1..b6f2c46d9d2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Chats.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index 9aca52cee28..6adbedb7d5e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index 669ad598e01..ee643423968 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index a7ac8e84bad..f12cfb444a7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 87c46e30c64..6ec8c9d3997 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index 6fd6ea40545..2b827b05700 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 1881f1a9df0..a77d331135e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messag
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 004d807efe3..a8ee4e9e415 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 7bda2beb274..babdea2fcf6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messag
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index 711cb165cc6..b2527fb6172 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 9c86aae8e03..ce8b6ed08ff 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 0fb8bfa9ac9..ecdb9f42bd2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messag
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 8a66844711c..50a40608105 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 3932a5adac3..9201a29f11c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messag
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/MessagesRequestBuilder.cs
index 3137dfdf0a5..204bc9aacfd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 7df04890d1a..fb224c9cc62 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index a0090c3d4db..03d93ae615b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
index edf18b771b9..927fc9d7bcb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/Item/PinnedChatMessageInfoItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PinnedChatMessageInfo> PatchAsync(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
index 4a49eafc4f3..8837e041e04 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/PinnedMessages/PinnedMessagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PinnedMessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.PinnedChatMessageInfo> PostAsync(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PinnedChatMessageInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index 759cd15ed09..8adcf843cf7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index e4ff77071d0..8fbccd32f27 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.SendAc
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index 71236c94409..9459c51bb8c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/TabsRequestBuilder.cs
index c5fc2009ec6..f06b7ee51bd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
index 8cd8d674eea..90c70fa9e69 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserPostRequestBody.cs
@@ -53,7 +53,7 @@ public UnhideForUserPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamworkUserIdentity>("user", User);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
index f8a86db6067..06c8cada330 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Chats/Item/UnhideForUser/UnhideForUserRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.Unhide
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Chats.Item.UnhideForUser.UnhideForUserPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
index 9057a1cbb83..ae048d5590e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("groupIds", GroupIds);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
index 85d59b86a9d..54fe4ae5ee5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
index 10f749e7873..c3274cc1fd5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostResponse> PostAsCheckMemberGroupsPostResponseAsync(global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public CheckMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
index c2285bacf9b..8da4fe1b13c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberGroups/CheckMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberGroupsResponse : global::Microsoft.Graph.Users.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CheckMemberGroups.CheckMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
index e9738bf8caf..98846745e3b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostRequestBody.cs
@@ -52,7 +52,7 @@ public CheckMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("ids", Ids);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
index 905092974d2..25a0a4093ba 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
index 71b364c37ac..f1566556c9d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsRequestBuilder.cs
@@ -50,7 +50,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostResponse> PostAsCheckMemberObjectsPostResponseAsync(global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public CheckMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
index ed3a2a65578..26d0cc3dc76 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CheckMemberObjects/CheckMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class CheckMemberObjectsResponse : global::Microsoft.Graph.Users.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.CheckMemberObjects.CheckMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/CloudClipboardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/CloudClipboardRequestBuilder.cs
index bf18948aeea..458eda51184 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/CloudClipboardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/CloudClipboardRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudClipboardRoot> PatchAsync(global::Microsoft.Graph.Models.CloudClipboardRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudClipboardRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs
index 5e66042dc58..4ee8837ec93 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/Item/CloudClipboardItemItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CloudClipboardItem> PatchAsync(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/ItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/ItemsRequestBuilder.cs
index cbfa59023e4..e545d73c14c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/ItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/CloudClipboard/Items/ItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.CloudClipboardItem> PostAsync(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CloudClipboardItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/ContactFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/ContactFoldersRequestBuilder.cs
index 679f5ed7d5f..9f641630ed1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/ContactFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/ContactFoldersRequestBuilder.cs
@@ -99,7 +99,7 @@ public ContactFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PostAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaGetResponse.cs
index d9e68049aa0..29778b88c49 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContactFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaResponse.cs
index 95d792ec432..bdb8f1cb30b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.ContactF
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
index a0b67cdcd04..3fe873da041 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
@@ -99,7 +99,7 @@ public ChildFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PostAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
index 10a5a8be706..43fb2ac5dc8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ContactFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs
index f512f795058..b9643e240bf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.ContactF
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs
index 770c1d3e3a4..2ca6a6e58ba 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/ContactFolderItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PatchAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs
index 25b5c525d38..b76132a068e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/ContactsRequestBuilder.cs
@@ -99,7 +99,7 @@ public ContactsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Contact> PostAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs
index 68a9700cfd3..e8aa301ea2e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs
index e7183457f30..8615d8a8568 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.ContactF
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Item.ChildFolders.Item.Contacts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
index 03db5819c25..7f7d6162cb3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Contact> PatchAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
index bf6f25eed7b..0d789db1c79 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 206cbf0671c..65075cd144b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
index 23052856fa9..a3918acc8c0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
index 91f5a19a3a3..e7c67134f99 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ChildFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ContactFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ContactFolderItemRequestBuilder.cs
index f0ba8b5ba47..0ea284e507c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ContactFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/ContactFolderItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContactFolder> PatchAsync(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContactFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs
index 158d2cb2693..c8c68b23571 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/ContactsRequestBuilder.cs
@@ -99,7 +99,7 @@ public ContactsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Contact> PostAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs
index e0223912f27..2a026a4d118 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Item.Contacts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Item.Contacts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs
index e7a36e4e5b7..35687c07b83 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.ContactF
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ContactFolders.Item.Contacts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ContactFolders.Item.Contacts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
index 8683d1472ea..da18c219800 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/ContactItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Contact> PatchAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
index f78b7efe88e..50ee9713dfa 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index d9c7c304c3b..b332817c43b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
index dbf540837b7..6903e0eef43 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
index 84215bab647..123c9b8c444 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ContactFolders/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/ContactsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/ContactsRequestBuilder.cs
index 6ee92e140ed..7a44a85d82d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/ContactsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/ContactsRequestBuilder.cs
@@ -99,7 +99,7 @@ public ContactsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Contact> PostAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaGetResponse.cs
index 9f8d24b2403..877715bb7c0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Contacts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Contacts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Contact>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaResponse.cs
index 0480f6b8dbb..53469eb5f64 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Contacts
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Contacts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Contacts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/ContactItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/ContactItemRequestBuilder.cs
index 2b4562eef0d..e89562ae165 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/ContactItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/ContactItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Contact> PatchAsync(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Contact body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
index a20e0de28c9..b7cb553dc7c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 9b8613f2b86..f810a4e1fcf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
index c5a654d9c09..c8082e7c8ec 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
index e4bda30bc51..84cff31c9a3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Contacts/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs
index 0833297e2c9..5e946e2fb2f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ActivitiesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ActivitiesContainer> PatchAsync(global::Microsoft.Graph.Models.ActivitiesContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ActivitiesContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs
index de945a444d7..30ba2d7acd0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/ContentActivitiesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ContentActivitiesRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.ContentActivity> PostAsync(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs
index bd7ada81500..0657a6ca7c1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/Activities/ContentActivities/Item/ContentActivityItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ContentActivity> PatchAsync(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ContentActivity body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
index 2f45d0bea66..652aa95f39b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/DataSecurityAndGovernanceRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserDataSecurityAndGovernance> PatchAsync(global::Microsoft.Graph.Models.UserDataSecurityAndGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserDataSecurityAndGovernance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs
index cf37eeee00b..aa021a243e7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public ProcessContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ProcessContentRequest>("contentToProcess", ContentToProcess);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs
index 685f2165a37..636d94215b3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProcessContent/ProcessContentRequestBuilder.cs
@@ -52,7 +52,7 @@ public ProcessContentRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ProcessContentResponse> PostAsync(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProcessContent.ProcessContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
index f31e37f65ae..c8aee3dd958 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostRequestBody.cs
@@ -97,7 +97,7 @@ public ComputePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody();
         }
         /// <summary>
@@ -121,7 +121,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteEnumValue<global::Microsoft.Graph.Models.UserActivityTypes>("activities", Activities);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DeviceMetadata>("deviceMetadata", DeviceMetadata);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.IntegratedApplicationMetadata>("integratedAppMetadata", IntegratedAppMetadata);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
index 8c378cfcea0..03fa29eab06 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputePostResponse.cs
@@ -36,7 +36,7 @@ public partial class ComputePostResponse : global::Microsoft.Graph.Models.BaseCo
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.PolicyUserScope>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
index ecf5417d4e4..3c8f586a5cf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeRequestBuilder.cs
@@ -50,7 +50,7 @@ public ComputeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostResponse> PostAsComputePostResponseAsync(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -76,7 +76,7 @@ public ComputeRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse> PostAsync(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -99,7 +99,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
index 9abc8f5ca17..256910e8415 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/Compute/ComputeResponse.cs
@@ -20,7 +20,7 @@ public partial class ComputeResponse : global::Microsoft.Graph.Users.Item.DataSe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.ProtectionScopes.Compute.ComputeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
index f6c2aab4b2f..2dfaac36977 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/ProtectionScopes/ProtectionScopesRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserProtectionScopeContainer> PatchAsync(global::Microsoft.Graph.Models.UserProtectionScopeContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserProtectionScopeContainer body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
index 638cdd60aa3..b9b621ae0db 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
@@ -101,7 +101,7 @@ public ComputeRightsAndInheritancePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("delegatedUserEmail", DelegatedUserEmail);
             writer.WriteStringValue("locale", Locale);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectedContent>("protectedContents", ProtectedContents);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
index c0e2f44b035..7aa59541e58 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
@@ -52,7 +52,7 @@ public ComputeRightsAndInheritanceRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult> PostAsync(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
index 70d0a0d792d..f8c98eafe03 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/SensitivityLabelItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PatchAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
index 526e9e8ae03..6bc0d41b1f4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritancePostRequestBody.cs
@@ -101,7 +101,7 @@ public ComputeRightsAndInheritancePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody();
         }
         /// <summary>
@@ -124,7 +124,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("delegatedUserEmail", DelegatedUserEmail);
             writer.WriteStringValue("locale", Locale);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ProtectedContent>("protectedContents", ProtectedContents);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
index 38b44b0211b..53e0263ba6c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/ComputeRightsAndInheritance/ComputeRightsAndInheritanceRequestBuilder.cs
@@ -52,7 +52,7 @@ public ComputeRightsAndInheritanceRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.ComputeRightsAndInheritanceResult> PostAsync(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.DataSecurityAndGovernance.SensitivityLabels.Item.Sublabels.ComputeRightsAndInheritance.ComputeRightsAndInheritancePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
index 5bb433271f1..7a474b29878 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/Item/SensitivityLabelItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PatchAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
index be8c388bdc4..eded6b2cf92 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/Item/Sublabels/SublabelsRequestBuilder.cs
@@ -114,7 +114,7 @@ public SublabelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PostAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
index ee92f89e5df..23b14be6e36 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DataSecurityAndGovernance/SensitivityLabels/SensitivityLabelsRequestBuilder.cs
@@ -114,7 +114,7 @@ public SensitivityLabelsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.SensitivityLabel> PostAsync(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SensitivityLabel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs
index 89f150308cb..012b2cdc923 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/DeviceManagementTroubleshootingEventsRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceManagementTroubleshootingEventsRequestBuilder(string rawUrl, IReque
         public async Task<global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent> PostAsync(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
index 26fe089c876..fdd76a1e3d7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/DeviceManagementTroubleshootingEvents/Item/DeviceManagementTroubleshootingEventItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent> PatchAsync(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceManagementTroubleshootingEvent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/EmployeeExperience/EmployeeExperienceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
index 33f3ff6dbc1..97738e6c2c8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/EmployeeExperience/EmployeeExperienceRequestBuilder.cs
@@ -113,7 +113,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.EmployeeExperienceUser> PatchAsync(global::Microsoft.Graph.Models.EmployeeExperienceUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -174,7 +174,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.EmployeeExperienceUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaGetResponse.cs
index c27d84242af..d753cd8dffd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Events.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaResponse.cs
index 829b0339c3a..79ef146495d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Events.D
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Events.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/EventsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/EventsRequestBuilder.cs
index f8ac862ffe0..5441b8a5d91 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/EventsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/EventsRequestBuilder.cs
@@ -99,7 +99,7 @@ public EventsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Event> PostAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptPostRequestBody.cs
index bb3e54e68f3..7419648331f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptPostRequestBody.cs
@@ -58,7 +58,7 @@ public AcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Events.Item.Accept.AcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.Accept.AcceptPostRequestBody();
         }
         /// <summary>
@@ -79,7 +79,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteBoolValue("SendResponse", SendResponse);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptRequestBuilder.cs
index 8e3509a35b5..f1717e19c71 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Accept/AcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Accep
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Events.Item.Accept.AcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
index f62a8bff5c4..68bb30c7a77 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index fb285500cb2..a5ae09351c8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index d6bb5d9811a..a4671565639 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Events.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelPostRequestBody.cs
index 3cec9c53553..28e855c667f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelPostRequestBody.cs
@@ -52,7 +52,7 @@ public CancelPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Events.Item.Cancel.CancelPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.Cancel.CancelPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelRequestBuilder.cs
index 110b30f8730..7ca4181e55f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Cancel/CancelRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Cance
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Events.Item.Cancel.CancelPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclinePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclinePostRequestBody.cs
index ef5a4d6c315..35e65bf6a56 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclinePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclinePostRequestBody.cs
@@ -75,7 +75,7 @@ public DeclinePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Events.Item.Decline.DeclinePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.Decline.DeclinePostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclineRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclineRequestBuilder.cs
index 737cbc592a0..c5910044c18 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclineRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Decline/DeclineRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Decli
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Events.Item.Decline.DeclinePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/EventItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/EventItemRequestBuilder.cs
index b42e7292abf..16b66e8d2b4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/EventItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/EventItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Event> PatchAsync(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Event body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
index 328e46d17a6..cc2ff4784c2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index be54b12125e..e97b348b73d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardPostRequestBody.cs
index a8adac00569..b1946d66ca5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardPostRequestBody.cs
@@ -69,7 +69,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Events.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardRequestBuilder.cs
index 13dd16779b0..362526077f5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Forwa
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Events.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
index 67970f8339e..bf57d3c8e11 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Events.Item.Instances.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.Instances.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Event>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaResponse.cs
index b00d750ad7a..6dc1754e821 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/Instances/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Events.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Events.Item.Instances.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.Instances.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
index 02347aab776..760651bde07 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderPostRequestBody.cs
@@ -53,7 +53,7 @@ public SnoozeReminderPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.DateTimeTimeZone>("NewReminderTime", NewReminderTime);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
index b40edb8eb15..607f1b9f854 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/SnoozeReminder/SnoozeReminderRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Snooz
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Events.Item.SnoozeReminder.SnoozeReminderPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
index dcb9d11b1fc..855c600bfd1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptPostRequestBody.cs
@@ -75,7 +75,7 @@ public TentativelyAcceptPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TimeSlot>("ProposedNewTime", ProposedNewTime);
             writer.WriteBoolValue("SendResponse", SendResponse);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
index 32e132f0d95..4cbfbbc65db 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Events/Item/TentativelyAccept/TentativelyAcceptRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.Tenta
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Events.Item.TentativelyAccept.TentativelyAcceptPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataPostRequestBody.cs
index 94aec53aee8..eacde5dac00 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataPostRequestBody.cs
@@ -52,7 +52,7 @@ public ExportPersonalDataPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ExportPersonalData.ExportPersonalDataPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ExportPersonalData.ExportPersonalDataPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("storageLocation", StorageLocation);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataRequestBuilder.cs
index b606deead58..3ca611a9cad 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ExportPersonalData/ExportPersonalDataRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.ExportPersonalDat
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.ExportPersonalData.ExportPersonalDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.ExportPersonalData.ExportPersonalDataPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Extensions/ExtensionsRequestBuilder.cs
index f6234d54bea..6666e8c5e24 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index c76eba5eb01..7324ebc31d0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs
index d67c51cfe28..040944042d0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesPostRequestBody.cs
@@ -115,7 +115,7 @@ public FindMeetingTimesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.FindMeetingTimes.FindMeetingTimesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.FindMeetingTimes.FindMeetingTimesPostRequestBody();
         }
         /// <summary>
@@ -142,7 +142,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeBase>("attendees", Attendees);
             writer.WriteBoolValue("isOrganizerOptional", IsOrganizerOptional);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.LocationConstraint>("locationConstraint", LocationConstraint);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs
index 4dc73995179..cc2a21c5127 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FindMeetingTimes/FindMeetingTimesRequestBuilder.cs
@@ -52,7 +52,7 @@ public FindMeetingTimesRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.MeetingTimeSuggestionsResult> PostAsync(global::Microsoft.Graph.Users.Item.FindMeetingTimes.FindMeetingTimesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.FindMeetingTimes.FindMeetingTimesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostRequestBody.cs
index 1c4f1e47a7a..37940e9a00d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostResponse.cs
index 6a8595b717e..f14cfd6d27c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddRequestBuilder.cs
index f3310926651..785eec62119 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddResponse> PostAsync(global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddResponse.cs
index 7fe32503dac..55fa0b39fbe 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Users.Item.FollowedSi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.FollowedSites.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostRequestBody.cs
index 8ac66493143..fbab10482ee 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostResponse.cs
index 781a3706c0f..83e131f8ebd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Site>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveRequestBuilder.cs
index ce215bcf3da..9ad8b0542d4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveResponse.cs
index 7679b89a266..471d7fe58ed 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/FollowedSites/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Users.Item.Followe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.FollowedSites.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostRequestBody.cs
index 3589f70dbc3..937320c0e37 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostRequestBody.cs
@@ -59,7 +59,7 @@ public GetMailTipsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("EmailAddresses", EmailAddresses);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.MailTipsType>("MailTipsOptions", MailTipsOptions);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostResponse.cs
index cc170cf02ee..3f0e0e2261f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class GetMailTipsPostResponse : global::Microsoft.Graph.Models.Ba
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailTips>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsRequestBuilder.cs
index 8db41911029..e0d72bc1b79 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMailTipsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostResponse> PostAsGetMailTipsPostResponseAsync(global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMailTipsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsResponse> PostAsync(global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsResponse.cs
index d241cc0363c..d2bf07f8143 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMailTips/GetMailTipsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMailTipsResponse : global::Microsoft.Graph.Users.Item.Ge
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMailTips.GetMailTipsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs
index 40ec13c2abc..8a5bee2cc75 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetManagedAppDiagnosticStatusesGetResponse : global::Micros
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppDiagnosticStatus>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs
index 3010bf8ce9c..5fbc7d4f8c2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppDiagnosticStatuses/GetManagedAppDiagnosticStatusesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetManagedAppDiagnosticStatusesResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetManagedAppDiagnosticStatuses.GetManagedAppDiagnosticStatusesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs
index 4e46f86f122..846430ca1b4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetManagedAppPoliciesGetResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetManagedAppPolicies.GetManagedAppPoliciesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetManagedAppPolicies.GetManagedAppPoliciesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ManagedAppPolicy>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs
index 75eef34c689..d610e8b3337 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetManagedAppPolicies/GetManagedAppPoliciesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetManagedAppPoliciesResponse : global::Microsoft.Graph.Use
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetManagedAppPolicies.GetManagedAppPoliciesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetManagedAppPolicies.GetManagedAppPoliciesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs
index c798c852028..379fe47d575 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresGetResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs
index 1a39e34c6fe..e51c41cb604 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetManagedDevicesWithAppFailures/GetManagedDevicesWithAppFailuresResponse.cs
@@ -20,7 +20,7 @@ public partial class GetManagedDevicesWithAppFailuresResponse : global::Microsof
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetManagedDevicesWithAppFailures.GetManagedDevicesWithAppFailuresResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
index edda465d4e3..c9c3c39589c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberGroupsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
index 79337e8fa67..a2bf6813560 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
index 4554850d30a..82caa1cd529 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostResponse> PostAsGetMemberGroupsPostResponseAsync(global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsResponse> PostAsync(global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsResponse.cs
index fb90e9ff081..fce94f52570 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberGroups/GetMemberGroupsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberGroupsResponse : global::Microsoft.Graph.Users.Ite
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMemberGroups.GetMemberGroupsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
index e69896ad39f..0bbb5a1ddc8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostRequestBody.cs
@@ -42,7 +42,7 @@ public GetMemberObjectsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("securityEnabledOnly", SecurityEnabledOnly);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
index b66d18a46de..79f68c7b6b6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsPostResponse.cs
@@ -36,7 +36,7 @@ public List<string> Value
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfPrimitiveValues<string>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
index 50d48c283f5..6edbaadd559 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsRequestBuilder.cs
@@ -51,7 +51,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostResponse> PostAsGetMemberObjectsPostResponseAsync(global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public GetMemberObjectsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsResponse> PostAsync(global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsResponse.cs
index ae14ec48e41..bee373d389f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/GetMemberObjects/GetMemberObjectsResponse.cs
@@ -20,7 +20,7 @@ public partial class GetMemberObjectsResponse : global::Microsoft.Graph.Users.It
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.GetMemberObjects.GetMemberObjectsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/InferenceClassificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/InferenceClassificationRequestBuilder.cs
index 37b65b03395..1835e4a1760 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/InferenceClassificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/InferenceClassificationRequestBuilder.cs
@@ -80,7 +80,7 @@ public InferenceClassificationRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.InferenceClassification> PatchAsync(global::Microsoft.Graph.Models.InferenceClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InferenceClassification body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs
index 3aaeef5f659..8adb819ee3f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/Item/InferenceClassificationOverrideItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.InferenceClassificationOverride> PatchAsync(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/OverridesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/OverridesRequestBuilder.cs
index 97805d6511c..bf250f40af6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/OverridesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/InferenceClassification/Overrides/OverridesRequestBuilder.cs
@@ -93,7 +93,7 @@ public OverridesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.InferenceClassificationOverride> PostAsync(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.InferenceClassificationOverride body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Insights/InsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Insights/InsightsRequestBuilder.cs
index 96d2621ccab..f0f988bb361 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Insights/InsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Insights/InsightsRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ItemInsights> PatchAsync(global::Microsoft.Graph.Models.ItemInsights body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ItemInsights body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs
index 113533a31c5..c9d704fa805 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/Item/SharedInsightItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedInsight> PatchAsync(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/SharedRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/SharedRequestBuilder.cs
index 3c4ae301902..8a0d60f92a1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/SharedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Insights/Shared/SharedRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.SharedInsight> PostAsync(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/Item/TrendingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/Item/TrendingItemRequestBuilder.cs
index 8ad10472cac..47980ba6da1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/Item/TrendingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/Item/TrendingItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Trending> PatchAsync(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/TrendingRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/TrendingRequestBuilder.cs
index 983fbdfaef5..6d8b2494e91 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/TrendingRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Insights/Trending/TrendingRequestBuilder.cs
@@ -93,7 +93,7 @@ public TrendingRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Trending> PostAsync(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Trending body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/Item/UsedInsightItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/Item/UsedInsightItemRequestBuilder.cs
index 50f77a7417e..b4ea65fb0b1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/Item/UsedInsightItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/Item/UsedInsightItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UsedInsight> PatchAsync(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/UsedRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/UsedRequestBuilder.cs
index fed75c7d528..9fe15065345 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/UsedRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Insights/Used/UsedRequestBuilder.cs
@@ -93,7 +93,7 @@ public UsedRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.UsedInsight> PostAsync(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UsedInsight body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
index c99703bceb4..c4c2a80b5ac 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs
index f0f54f61426..d7bdbfec90a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Users.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs
index 2108c0aab75..7bb6617ef44 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs
index 364c131604c..1985952fbf9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs
index 7549197d835..52a5ab154f1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/ChannelsRequestBuilder.cs
@@ -105,7 +105,7 @@ public ChannelsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Channel> PostAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
index c10a8e0e80b..c799f5c4dd8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllMessagesGetResponse : global::Microsoft.Graph.Models.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
index 57248771d6d..4486d6e41e0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllMessages/GetAllMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllMessagesResponse : global::Microsoft.Graph.Users.Item
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllMessages.GetAllMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
index e2040d6addb..dba7dab1504 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRetainedMessagesGetResponse : global::Microsoft.Graph
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
index 0c43aefa6df..4572a7cc3d4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/GetAllRetainedMessages/GetAllRetainedMessagesResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRetainedMessagesResponse : global::Microsoft.Graph.Us
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.GetAllRetainedMessages.GetAllRetainedMessagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
index 349389512c2..c09701c84c7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
index faaf59a8564..2f598280a05 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
index 03bc9a642a7..f6273e44ba3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
index f65281a9cd3..fbde4b03a56 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Users.Item.JoinedTeam
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
index 76d224aab6e..47a413c3f80 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index c95fe93dbfe..e4fd8fb799e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
index 899df60db50..f536972367e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
index 4a9ad332110..6ea4a823fcb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
index c436c2114d1..dbff86de25f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
index 841733183f5..43b167a60bb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Users.Item.JoinedT
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
index b1e9595e011..6c46bd46821 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
index d336d86661d..6d95ff06c3e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
index b519be40249..10bd3cab63e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/ChannelItemRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index a9a1030cf37..4f93a548ffe 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index 2253a4f975b..104fe9417e3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
index a54711f95fc..6ccefcfeceb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
index b038c25d9dd..5d4bc5b6bdf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
index 442d91daa22..ad4de3b6818 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
index c4adbf78e0e..5ed90764ca6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
index ad516f8dfd2..0dcd9f8e10c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Users.Item.JoinedTeam
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index f70aa75a30a..1a7a57e9f8d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
index 51e19324334..8662452a3f0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
index f22788e8ca2..a6c27106441 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
index a9ac66cacb1..e2175d5a668 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
index 7d3d69e68e7..8a15f98900a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
index 25ded2541b0..815bb708b05 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Users.Item.JoinedT
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
index b48dc3ec1a0..865b0b70c67 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
index eda64878cd0..ae37dfcbea5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.JoinedTe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
index de4bf2a1c8c..7fddf5cc950 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 4d48d393d5f..844afd0ad8c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 93e7e66fa6f..6e52449f169 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index 7d674a13d4b..166e98185dc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 74a06a5a23b..4f61738d635 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
index 7f3a785170f..d573c30acef 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.JoinedTe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index f503283cc17..c4e8a6ffb39 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index e3b9be84f9b..7bf11d2286e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 5c8dcb258fe..67f62c36a55 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index a8000d1d7e9..7ed8af8335f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index 680a9d342d1..0b54e042efd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 68a30fba18a..b4002ee44ff 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index f0d53dfe285..6a591a3ad10 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 79d684b22eb..e75f2546bc6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
index b8dcf3bc06c..98f40b24fff 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index 056fa2f978f..387955079dc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index c95e0cad3a3..072a5b7f0a2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index c6beacc511f..a1df72cfe8c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 3314367cae9..25d17937cfa 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Channels.Item.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
index edcabb9a7fb..916a8cfaf09 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index 880cef3c088..3ce37db0d13 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index b13d2f0a9ad..9b7c5a09f19 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
index f003101ea1f..d194f71b814 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
index 0480517fe7e..7aa6f94ccf3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Channels/Item/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/ClonePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/ClonePostRequestBody.cs
index 96cdb607fa2..e5ef1cfc11c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/ClonePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/ClonePostRequestBody.cs
@@ -113,7 +113,7 @@ public ClonePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Clone.ClonePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Clone.ClonePostRequestBody();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("classification", Classification);
             writer.WriteStringValue("description", Description);
             writer.WriteStringValue("displayName", DisplayName);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/CloneRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/CloneRequestBuilder.cs
index df8b87201e7..3d46455aa34 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/CloneRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Clone/CloneRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Clone.ClonePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
index 6734e39f6e6..ab5226a6e0a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -93,7 +93,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
index 501e3452a26..e112b29efb8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/TeamsAppInstallationItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
index 28f49f1d356..ea6db54b94b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradePostRequestBody.cs
@@ -53,7 +53,7 @@ public UpgradePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.TeamsAppPermissionSet>("consentedPermissionSet", ConsentedPermissionSet);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
index 2f07771b076..fc1591f9312 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/InstalledApps/Item/Upgrade/UpgradeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.InstalledApps.Item.Upgrade.UpgradePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs
index db1f52fd5e8..ee65e847d5c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostResponse.cs
index b95c48a9593..47e232c7efd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs
index 612f047bb77..986fdd85550 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddResponse.cs
index 0ad89249955..3effd9df65e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Users.Item.JoinedTeam
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
index 04d563d5c67..57fa0dfc43a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/MembersRequestBuilder.cs
index cffef7f530a..4e10ec739b2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs
index 9ff527e1fd2..d0a228d54d3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs
index 19ff945003d..03f7d3c026c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs
index bfac78b18dd..3af7762ff3d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveResponse.cs
index 29e0e632d2c..ca1ce7f4fcd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Users.Item.JoinedT
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
index 4214e7239f6..99859a964e5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/Item/TeamsAsyncOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PatchAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs
index 2e27fdbef5d..97a7a9bb360 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TeamsAsyncOperation> PostAsync(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsAsyncOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 2ef45abe721..03f47a47739 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index 4e70953d6e2..1d61702da8e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -93,7 +93,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs
index 46b5d3d62e8..225b447fdc4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/PhotoRequestBuilder.cs
@@ -80,7 +80,7 @@ public PhotoRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -122,7 +122,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs
index e0b0f634664..d368fcce422 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
index a1bae233087..40ee4c026d8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
index fd38aa77693..04c6f1af511 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
index 4e31d35dff0..99a8e76e8be 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
index 0baaa481fa2..feb94497778 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Users.Item.JoinedTeam
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
index e7654a2d3db..080b6addab6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/AllMembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public AllMembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
index 368e6b03d61..e24596c81ad 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
index 6394b30ebce..8bf12eff49d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
index a335cb84428..48d2a7e7298 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
index f37fdf18072..66e4056e589 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
index 134299c97a5..aa121978131 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/AllMembers/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Users.Item.JoinedT
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.AllMembers.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
index fac2c5d55d8..445626f0bbb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchivePostRequestBody.cs
@@ -42,7 +42,7 @@ public ArchivePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("shouldSetSpoSiteReadOnlyForMembers", ShouldSetSpoSiteReadOnlyForMembers);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
index 5618b7c9c9b..240eeac5e5c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Archive/ArchiveRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Archive.ArchivePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
index 538c89a0e23..9bda0d9361f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse.cs
@@ -42,7 +42,7 @@ public DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrinci
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameGetResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
index a7a2515f318..ceffdf28563 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName/DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse.cs
@@ -20,7 +20,7 @@ public partial class DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipal
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalName.DoesUserHaveAccessuserIdUserIdTenantIdTenantIdUserPrincipalNameUserPrincipalNameResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
index ec01eb6fe7b..0ff82dfc698 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/FilesFolder/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<global::Microsoft
         public async Task<global::Microsoft.Graph.Models.DriveItem> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
index 1e3af0c7d07..3cf08ab67cc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostRequestBody.cs
@@ -53,7 +53,7 @@ public AddPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
index d1bc596fbec..0cef72006d5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddPostResponse.cs
@@ -36,7 +36,7 @@ public partial class AddPostResponse : global::Microsoft.Graph.Models.BaseCollec
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
index d9c9fa01e10..3e758e6975d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddRequestBuilder.cs
@@ -51,7 +51,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostResponse> PostAsAddPostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public AddRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(r
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs
index 00bd727b4c0..78b96891711 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Add/AddResponse.cs
@@ -20,7 +20,7 @@ public partial class AddResponse : global::Microsoft.Graph.Users.Item.JoinedTeam
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Add.AddResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
index 4f131e7ca6b..3cb92578659 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Item/ConversationMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PatchAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
index 9b1bf9d7ae9..913f7532af8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/MembersRequestBuilder.cs
@@ -105,7 +105,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ConversationMember> PostAsync(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -147,7 +147,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ConversationMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
index 3d57f463abe..f1bcf0b81b4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostRequestBody.cs
@@ -53,7 +53,7 @@ public RemovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConversationMember>("values", Values);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
index aa304df2452..a0efb2dcb2c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemovePostResponse.cs
@@ -36,7 +36,7 @@ public partial class RemovePostResponse : global::Microsoft.Graph.Models.BaseCol
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ActionResultPart>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
index 90b91bc31cc..862ed47f016 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveRequestBuilder.cs
@@ -51,7 +51,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostResponse> PostAsRemovePostResponseAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public RemoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemoveResponse> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
index 2c662ecf523..9ad1dd9e79e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Members/Remove/RemoveResponse.cs
@@ -20,7 +20,7 @@ public partial class RemoveResponse : global::Microsoft.Graph.Users.Item.JoinedT
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemoveResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Members.Remove.RemoveResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
index 38cf3ab93d2..33a0de25cc2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
index 2dfdb10429c..d323452413c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.JoinedTe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
index e9eb40aaa60..0e716414b76 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/ChatMessageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
index 57e5c111237..862589dd9df 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index 71308a192a5..5d5b8a66ff0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index d124eeb7283..1d1e65f40de 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
index 17d5c472527..7b837ce1609 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ChatMessage>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
index 9702e1056da..43f7da4adf0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.JoinedTe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
index 2a227c3e340..af0017cf5f5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/ChatMessageItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PatchAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
index 9c3149e805f..7b91c674d2f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/HostedContentsRequestBuilder.cs
@@ -93,7 +93,7 @@ public HostedContentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PostAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
index b489fd2e7eb..d73e8fd8c77 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/ChatMessageHostedContentItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChatMessageHostedContent> PatchAsync(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChatMessageHostedContent body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
index a7548bc03ae..b3d1ae50b9a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/HostedContents/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
index f16b840a0c7..4b88b3fd986 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
index 43a47a9799b..3156a5d6776 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 561eefb5ab8..cffea15f1b1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 64b44cc182a..f22394ca229 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.Replies.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
index 4d53c124d19..438fd4bff65 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/Replies/RepliesRequestBuilder.cs
@@ -99,7 +99,7 @@ public RepliesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
index c2baa8aea3c..db29b08d437 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public SetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
index 79d83759648..07f001c543b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/SetReaction/SetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.SetReaction.SetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
index 7525d2b01fa..fadd4f0bddd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionPostRequestBody.cs
@@ -52,7 +52,7 @@ public UnsetReactionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("reactionType", ReactionType);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
index 19e5c4c3b16..ca075d6ea31 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/Item/UnsetReaction/UnsetReactionRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.PrimaryChannel.Messages.Item.UnsetReaction.UnsetReactionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
index 82fb0cc76ac..bdbff4c3bce 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ChatMessage> PostAsync(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChatMessage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
index 4511ddf28e7..4f68adbf12c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/PrimaryChannelRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Channel> PatchAsync(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Channel body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
index d613abfa756..dcd0f2c4b14 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/Item/SharedWithChannelTeamInfoItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PatchAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
index 65f4adb227c..8f02d8bee64 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/SharedWithTeams/SharedWithTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SharedWithTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.SharedWithChannelTeamInfo> PostAsync(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SharedWithChannelTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
index d9cdeb3eb6e..b68f7d2d8de 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/Item/TeamsTabItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PatchAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
index 3f7df37d751..37175d6abcb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/PrimaryChannel/Tabs/TabsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TabsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamsTab> PostAsync(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamsTab body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
index 7d459b4bf18..99eaf7294ad 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/DayNotesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DayNotesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.DayNote> PostAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
index c163444cfdf..bd62e06cb07 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/DayNotes/Item/DayNoteItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DayNote> PatchAsync(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DayNote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
index bb3e20fc07e..9e4b655505b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/Item/OfferShiftRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PatchAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
index 3fd961a1f39..f5c93f8ba8d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OfferShiftRequests/OfferShiftRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OfferShiftRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OfferShiftRequest> PostAsync(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OfferShiftRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
index dba416932fb..6138630668a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/Item/OpenShiftChangeRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PatchAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
index 7ba55d82169..36a2df8f53d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShiftChangeRequests/OpenShiftChangeRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OpenShiftChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter requ
         public async Task<global::Microsoft.Graph.Models.OpenShiftChangeRequest> PostAsync(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShiftChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
index f56998b9e74..7be60f6e4e5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/Item/OpenShiftItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OpenShift> PatchAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
index ea85cf4bd79..9688802b1ed 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/OpenShifts/OpenShiftsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OpenShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OpenShift> PostAsync(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OpenShift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs
index c981ecb740a..ce4183f937c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/ScheduleRequestBuilder.cs
@@ -168,7 +168,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Schedule> PutAsync(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -229,7 +229,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.Schedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
index eed1394f72a..1b12fc50092 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/Item/SchedulingGroupItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PatchAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
index e46fc63e43d..d13af8d54fe 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SchedulingGroups/SchedulingGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SchedulingGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.SchedulingGroup> PostAsync(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SchedulingGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs
index 2c30b4c0886..8dbacf45df8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/SharePostRequestBody.cs
@@ -54,7 +54,7 @@ public SharePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.Share.SharePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.Share.SharePostRequestBody();
         }
         /// <summary>
@@ -76,7 +76,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteBoolValue("notifyTeam", NotifyTeam);
             writer.WriteDateTimeOffsetValue("startDateTime", StartDateTime);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs
index 20a2d8aeff8..54b7d75b4a7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Share/ShareRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.Share.SharePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
index f7fb312f60e..78847238cfa 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/Item/ShiftItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Shift> PatchAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
index 27fb91706db..9287c2ec008 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/Shifts/ShiftsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ShiftsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : bas
         public async Task<global::Microsoft.Graph.Models.Shift> PostAsync(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Shift body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
index f0615bf1538..4aa16dff6f5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/Item/SwapShiftsChangeRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PatchAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
index d5bb3a2106d..b8b3b592e5e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/SwapShiftsChangeRequests/SwapShiftsChangeRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SwapShiftsChangeRequestsRequestBuilder(string rawUrl, IRequestAdapter req
         public async Task<global::Microsoft.Graph.Models.SwapShiftsChangeRequest> PostAsync(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SwapShiftsChangeRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
index 28b75e843fd..43fa6980cb4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInPostRequestBody.cs
@@ -75,7 +75,7 @@ public ClockInPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody();
         }
         /// <summary>
@@ -97,7 +97,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteStringValue("onBehalfOfUserId", OnBehalfOfUserId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
index d603d3475b8..3081bfc3d3a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/ClockIn/ClockInRequestBuilder.cs
@@ -52,7 +52,7 @@ public ClockInRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.ClockIn.ClockInPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
index 6ad5b07edc9..828259dc9a2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutPostRequestBody.cs
@@ -59,7 +59,7 @@ public ClockOutPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
index 8c9b41ca54f..4cd7dc03afc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/ClockOut/ClockOutRequestBuilder.cs
@@ -51,7 +51,7 @@ public ClockOutRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.ClockOut.ClockOutPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
index 1be332377ff..946d54ade43 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public EndBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
index 594cb95b212..995c75e6300 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/EndBreak/EndBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public EndBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.EndBreak.EndBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
index fc94720c8cf..5bdfb38f5b4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakPostRequestBody.cs
@@ -59,7 +59,7 @@ public StartBreakPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("isAtApprovedLocation", IsAtApprovedLocation);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ItemBody>("notes", Notes);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
index 9f295e3f5b6..a31ad7e962d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/StartBreak/StartBreakRequestBuilder.cs
@@ -51,7 +51,7 @@ public StartBreakRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -74,7 +74,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.Schedule.TimeCards.Item.StartBreak.StartBreakPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
index 9a72187a937..7098607e95d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/Item/TimeCardItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeCard> PatchAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
index 3dd908abab6..c4381008445 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeCards/TimeCardsRequestBuilder.cs
@@ -99,7 +99,7 @@ public TimeCardsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.TimeCard> PostAsync(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeCard body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
index a2f1d15f813..75831abae96 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/Item/TimeOffReasonItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PatchAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
index c2e70eb684c..7a0cbabe660 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffReasons/TimeOffReasonsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimeOffReasonsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.TimeOffReason> PostAsync(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffReason body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
index c31f52cabc8..c66098cdd48 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/Item/TimeOffRequestItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PatchAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
index 9c773f841a7..62581f8058b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimeOffRequests/TimeOffRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimeOffRequestsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.TimeOffRequest> PostAsync(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOffRequest body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
index 93d37987e95..594e22b61b4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/Item/TimeOffItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TimeOff> PatchAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
index 9292e85f3a9..dae204724ea 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Schedule/TimesOff/TimesOffRequestBuilder.cs
@@ -93,7 +93,7 @@ public TimesOffRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.TimeOff> PostAsync(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TimeOff body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index 73b98f3cf50..3fc3545c9b3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -155,7 +155,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -182,7 +182,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index e63d91829ff..28700723b1c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.JoinedTeams.Item.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
index d7931154f3a..8050e8902fa 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/Item/TeamworkTagMemberItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PatchAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs
index bd080253329..97f98a125a0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/Members/MembersRequestBuilder.cs
@@ -93,7 +93,7 @@ public MembersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.TeamworkTagMember> PostAsync(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTagMember body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
index f8aca5f40e4..9231253ffcf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/Item/TeamworkTagItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PatchAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/TagsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/TagsRequestBuilder.cs
index 531bcc504d3..5981aeaec6a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/TagsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/Tags/TagsRequestBuilder.cs
@@ -93,7 +93,7 @@ public TagsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.TeamworkTag> PostAsync(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TeamworkTag body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/TeamItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/TeamItemRequestBuilder.cs
index bc9d7fd76a5..31fb04e01a3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/TeamItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/Item/TeamItemRequestBuilder.cs
@@ -204,7 +204,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Team> PatchAsync(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -265,7 +265,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/JoinedTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/JoinedTeamsRequestBuilder.cs
index ac40098d6b1..c64f07011ce 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/JoinedTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/JoinedTeams/JoinedTeamsRequestBuilder.cs
@@ -99,7 +99,7 @@ public JoinedTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Team> PostAsync(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Team body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs
index 8cee0cd5207..4d13fd84b64 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/Item/LicenseDetailsItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LicenseDetails> PatchAsync(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/LicenseDetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/LicenseDetailsRequestBuilder.cs
index a8614fd2459..ea63ffccb21 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/LicenseDetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/LicenseDetails/LicenseDetailsRequestBuilder.cs
@@ -99,7 +99,7 @@ public LicenseDetailsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.LicenseDetails> PostAsync(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LicenseDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaGetResponse.cs
index 097db10b2e4..4c6760d2b01 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaResponse.cs
index 7ee0b05cde5..ac96e57b13f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.MailFold
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
index 33cbbb6fe79..53fd7d9b995 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/ChildFoldersRequestBuilder.cs
@@ -99,7 +99,7 @@ public ChildFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
index 9399fe8f89f..4f616fd2c59 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.MailFolder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs
index 6f85b5b7b8c..8420b6fcf88 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.MailFold
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs
index e086e847db1..ecf529d5c29 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs
index 2870defd0c2..65b357eb9ea 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs
index 5d948d8ac78..8c94633c4ff 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MailFolderItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailFolder> PatchAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
index d36156e66a8..d5c2a9e5378 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MessageRule> PatchAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
index d2154e7ceaa..daf15890317 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MessageRulesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MessageRule> PostAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs
index 5b8d6017ee7..5cffe64ef15 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Message>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs
index 31de0e36322..6fd710b09ee 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.MailFold
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
index 7f2c7612aa2..4eb6134a753 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 2d6a18f6afe..91de896754a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index c6f135eb973..2d46ff2a182 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
index 353d2e3e687..0e4d1cc0374 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
index 7baf772ae5a..9601d0fa56d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
index f79a489edaa..9c0f490ce7a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public CreateForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
index 32377b21295..4db0cc963c8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateForwardRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
index 79e01330a86..baf88758cbf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
index 1ff5427ec0a..c7a91eedb65 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
index 411f1953746..769f9a7b95a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
index 64e85e0bd54..7b0d8878a25 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyAllRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
index bd96024cd24..e79f114175a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index c2e4556d9f7..e4c283f44e3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
index 4d8bce1ff05..d7271cf6926 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
index fa774590512..0ce79ef2840 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
index e61183c3dca..c4bf3f14531 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
@@ -174,7 +174,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Message> PatchAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -235,7 +235,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
index 20268dfb9ed..f1f19979987 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
index 62f5783e912..dcd31a15801 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
index 429303dba4c..d2df0fe90a2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
index a991f697bcd..52b148b0764 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
index b75d0c44e39..b1df91cd454 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
index 572a183972f..09f30e36e27 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
index c698ddf1ac5..15a75e42cb6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs
index e8cbb649854..b15fe91af0c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs
index 25a4fe3629f..d9fdb07b379 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs
index 918795ec042..277f83286bd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/ChildFolders/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.ChildFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyPostRequestBody.cs
index 96361870592..a6d1ba9bf61 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyRequestBuilder.cs
index 319f55c6195..8df3f75c0b2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MailFolderItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MailFolderItemRequestBuilder.cs
index 504bf9fcea7..bd56fa078e8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MailFolderItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MailFolderItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MailFolder> PatchAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
index 64c244fecab..5649c59a577 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/Item/MessageRuleItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MessageRule> PatchAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
index 087e6299fde..ad0b7e3169d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/MessageRules/MessageRulesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MessageRulesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MessageRule> PostAsync(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MessageRule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs
index 5aa744a9e63..7c4f5c3226a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Message>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaResponse.cs
index 03893cc4823..c9217937c8f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.MailFold
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
index f4066cb9443..c78017242b2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index a926ca6d0c2..bf10e2da92d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 40f09c9f54a..fc440713f21 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
index dfc7ef6fb1d..349b175e4e6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
index eaeda4f909e..e1f7dd01f34 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
index 34e01e7abe8..b7f4f73fadf 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public CreateForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
index 75bc3769010..bb6a1808217 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateForwardRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
index 3a5e20a4e2f..327cbb7549f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
index fa608b0e040..9dc91591dfd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
index bbe60d87eaa..e2985be0560 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
index e7488ba1cce..96914d0a5e5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyAllRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
index 63b4679e99a..b4c9c115e5f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 4eea35afafa..4b974a8774f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
index fe630146da4..f2aac55e857 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
index ee1cee6c856..11fe14f7298 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
index 3e104382823..60ff1253a28 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/MessageItemRequestBuilder.cs
@@ -174,7 +174,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Message> PatchAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -235,7 +235,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
index 6b5732bb9b6..517101511eb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
index a6d9e5d3e3e..6b2a66ef748 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
index 4492ae2d83b..3931682d67b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
index 61a651dcf82..9073655c47d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
index a620ee70164..283db509c89 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
index f1337cfe458..659e97d85e2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
index 31fabd8c843..f91aef3c250 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/MessagesRequestBuilder.cs
index 71792bdb7d9..8d7eb341423 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MovePostRequestBody.cs
index 849d3b37b67..3c47748e7a7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.MailFolders.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.MailFolders.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MoveRequestBuilder.cs
index 4dca773d4b8..c71f3703b54 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Users.Item.MailFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.MailFolders.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/MailFoldersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/MailFoldersRequestBuilder.cs
index 8ec61802712..8cf8ef3a5be 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailFolders/MailFoldersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailFolders/MailFoldersRequestBuilder.cs
@@ -99,7 +99,7 @@ public MailFoldersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.MailFolder> PostAsync(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MailFolder body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
index 60b7a79bad8..324cd0e7823 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/MailboxSettings/MailboxSettingsRequestBuilder.cs
@@ -74,7 +74,7 @@ public MailboxSettingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.MailboxSettings> PatchAsync(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -116,7 +116,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MailboxSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
index 8213e97012d..b622a0b6bff 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDevicePostRequestBody.cs
@@ -42,7 +42,7 @@ public CleanWindowsDevicePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("keepUserData", KeepUserData);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
index 05ec6ed7053..630054c107c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/CleanWindowsDevice/CleanWindowsDeviceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.CleanWindowsDevice.CleanWindowsDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
index 37f868a691f..9fc5b1d98d0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDevicePostRequestBody.cs
@@ -52,7 +52,7 @@ public DeleteUserFromSharedAppleDevicePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("userPrincipalName", UserPrincipalName);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
index d56b3d71b04..83d1c1bfac5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeleteUserFromSharedAppleDevice/DeleteUserFromSharedAppleDeviceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.DeleteUserFromSharedAppleDevice.DeleteUserFromSharedAppleDevicePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
index 7df03107737..245a224fb2b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/DeviceCategoryRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCategory> PatchAsync(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
index 0f478055b1d..b059d1899e1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCategory/Ref/RefRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
index d180110db21..3b1d1ae879c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/DeviceCompliancePolicyStatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceCompliancePolicyStatesRequestBuilder(string rawUrl, IRequestAdapter
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyState> PostAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
index 29e6f7010be..d93abf378b4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceCompliancePolicyStates/Item/DeviceCompliancePolicyStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceCompliancePolicyState> PatchAsync(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceCompliancePolicyState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
index 97d0abd7d9a..285629e7be5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/DeviceConfigurationStatesRequestBuilder.cs
@@ -93,7 +93,7 @@ public DeviceConfigurationStatesRequestBuilder(string rawUrl, IRequestAdapter re
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationState> PostAsync(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
index d2c0ba7211f..c136d7d20a6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/DeviceConfigurationStates/Item/DeviceConfigurationStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceConfigurationState> PatchAsync(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceConfigurationState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
index fac1346d73e..7f7489d57b6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlPostResponse.cs
@@ -52,7 +52,7 @@ public CreateDownloadUrlPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlPostResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
index 9ba8c37b6cc..f918dc38d05 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/CreateDownloadUrl/CreateDownloadUrlResponse.cs
@@ -20,7 +20,7 @@ public partial class CreateDownloadUrlResponse : global::Microsoft.Graph.Users.I
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.LogCollectionRequests.Item.CreateDownloadUrl.CreateDownloadUrlResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
index 2bc6d1c2198..d1e3e9b23a1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/Item/DeviceLogCollectionResponseItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.DeviceLogCollectionResponse> PatchAsync(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
index 326fd147d9b..e1278fcdb2d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/LogCollectionRequests/LogCollectionRequestsRequestBuilder.cs
@@ -93,7 +93,7 @@ public LogCollectionRequestsRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.DeviceLogCollectionResponse> PostAsync(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.DeviceLogCollectionResponse body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
index 701023bd855..8e07f1c262d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/ManagedDeviceItemRequestBuilder.cs
@@ -240,7 +240,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ManagedDevice> PatchAsync(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -301,7 +301,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
index 3c880494825..07b4db8af75 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountPostRequestBody.cs
@@ -53,7 +53,7 @@ public UpdateWindowsDeviceAccountPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.UpdateWindowsDeviceAccountActionParameter>("updateWindowsDeviceAccountActionParameter", UpdateWindowsDeviceAccountActionParameter);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
index 3dd64471a66..7924795b628 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/UpdateWindowsDeviceAccount/UpdateWindowsDeviceAccountRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.UpdateWindowsDeviceAccount.UpdateWindowsDeviceAccountPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
index 152a11b3bf8..5980a77ad94 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanPostRequestBody.cs
@@ -42,7 +42,7 @@ public WindowsDefenderScanPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("quickScan", QuickScan);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
index 9805fc04761..1638407bf46 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsDefenderScan/WindowsDefenderScanRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.WindowsDefenderScan.WindowsDefenderScanPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
index 583d17c6e9b..51db1254dba 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/DetectedMalwareStateRequestBuilder.cs
@@ -93,7 +93,7 @@ public DetectedMalwareStateRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Models.WindowsDeviceMalwareState> PostAsync(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
index 467b1d80bd6..94ade7126cc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/DetectedMalwareState/Item/WindowsDeviceMalwareStateItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsDeviceMalwareState> PatchAsync(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsDeviceMalwareState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
index 6790dcd6e47..a6897126896 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/WindowsProtectionState/WindowsProtectionStateRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsProtectionState> PatchAsync(global::Microsoft.Graph.Models.WindowsProtectionState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsProtectionState body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
index b72e67be8be..4626ede8ef8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipePostRequestBody.cs
@@ -70,7 +70,7 @@ public WipePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.ManagedDevices.Item.Wipe.WipePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ManagedDevices.Item.Wipe.WipePostRequestBody();
         }
         /// <summary>
@@ -93,7 +93,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("keepEnrollmentData", KeepEnrollmentData);
             writer.WriteBoolValue("keepUserData", KeepUserData);
             writer.WriteStringValue("macOsUnlockCode", MacOsUnlockCode);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
index 5f68f78fd45..4cfc57717e8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/Item/Wipe/WipeRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.Wipe.WipePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.ManagedDevices.Item.Wipe.WipePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/ManagedDevicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/ManagedDevicesRequestBuilder.cs
index 542619ecf4a..f12c0a8c3a1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/ManagedDevicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ManagedDevices/ManagedDevicesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ManagedDevicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ManagedDevice> PostAsync(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ManagedDevice body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Manager/Ref/RefRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Manager/Ref/RefRequestBuilder.cs
index 14f2326324a..92c581eae81 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Manager/Ref/RefRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Manager/Ref/RefRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body,
         public async Task PutAsync(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models
         public RequestInformation ToPutRequestInformation(global::Microsoft.Graph.Models.ReferenceUpdate body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaGetResponse.cs
index 8ace7a5720c..bd67ace2d33 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Messages.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Message>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaResponse.cs
index 2f27b1ed457..5f1110a699c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Messages
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Messages.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
index d8b5becff17..0a1f7909f4e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Attachment> PostAsync(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Attachment body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index f897a18d887..40b84c409ee 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentItem>("AttachmentItem", AttachmentItem);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index 7f9278b3562..65b88ea546f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyPostRequestBody.cs
index 0c0ae6ead2c..013d0008379 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyPostRequestBody.cs
@@ -52,7 +52,7 @@ public CopyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.Copy.CopyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.Copy.CopyPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyRequestBuilder.cs
index 1fafe13119e..921bcac9f62 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Copy/CopyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.Copy.CopyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
index 916feac8651..35ba6a6e63a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public CreateForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
index 69e8e42370d..2101e9fbfc2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateForward/CreateForwardRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateForwardRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.CreateForward.CreateForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
index e2821fbb8f8..c953a2d84f9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
index 2e3e45d5ef2..a3988c146e2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReply/CreateReplyRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.CreateReply.CreateReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
index 1915c3b9130..3442571e9c8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public CreateReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
index 890f83f5587..03a3daff568 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/CreateReplyAll/CreateReplyAllRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateReplyAllRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.CreateReplyAll.CreateReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
index 5b53dde2d34..d7fc2c6a498 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index e435f2f2841..94dbde3911c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
index db8143d1203..31f6f7c95be 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardPostRequestBody.cs
@@ -85,7 +85,7 @@ public ForwardPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.Forward.ForwardPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.Forward.ForwardPostRequestBody();
         }
         /// <summary>
@@ -107,7 +107,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Recipient>("ToRecipients", ToRecipients);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
index ac5071166b2..548b9a60e99 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Forward/ForwardRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.For
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.Forward.ForwardPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/MessageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/MessageItemRequestBuilder.cs
index 352a891e7ae..97b5039a978 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/MessageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/MessageItemRequestBuilder.cs
@@ -174,7 +174,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Message> PatchAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -235,7 +235,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MovePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MovePostRequestBody.cs
index 498766cbf4d..3d5b1d62a26 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MovePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MovePostRequestBody.cs
@@ -52,7 +52,7 @@ public MovePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.Move.MovePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.Move.MovePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("DestinationId", DestinationId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MoveRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MoveRequestBuilder.cs
index e17268d33e2..0810267103a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MoveRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Move/MoveRequestBuilder.cs
@@ -52,7 +52,7 @@ public MoveRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base(
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.Move.MovePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
index b854433dfbb..5750b094f7c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.Reply.ReplyPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.Reply.ReplyPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
index beb6a3b4762..23fb9d6b3cc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Reply/ReplyRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.Rep
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.Reply.ReplyPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
index f65827fddeb..2ca8038d659 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllPostRequestBody.cs
@@ -69,7 +69,7 @@ public ReplyAllPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody();
         }
         /// <summary>
@@ -90,7 +90,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("Comment", Comment);
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
index 1aa907da290..a987f038a43 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/ReplyAll/ReplyAllRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.Rep
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Messages.Item.ReplyAll.ReplyAllPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Value/ContentRequestBuilder.cs
index f8fbb08e1eb..90057fb781c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Messages/MessagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Messages/MessagesRequestBuilder.cs
index 038941fd5b0..86eb69b5966 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Messages/MessagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Messages/MessagesRequestBuilder.cs
@@ -99,7 +99,7 @@ public MessagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.Message> PostAsync(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Message body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
index 6fabeac8175..85583cab770 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlPostRequestBody.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("webUrl", WebUrl);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
index 3d3279f3e74..a22f6c62d2b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetNotebookFromWebUrl/GetNotebookFromWebUrlRequestBuilder.cs
@@ -52,7 +52,7 @@ public GetNotebookFromWebUrlRequestBuilder(string rawUrl, IRequestAdapter reques
         public async Task<global::Microsoft.Graph.Models.CopyNotebookModel> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetNotebookFromWebUrl.GetNotebookFromWebUrlPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
index e6f43563232..803b9a3fea6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksGetResponse :
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.RecentNotebook>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
index 507810c34db..e32f1d12637 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/GetRecentNotebooksWithIncludePersonalNotebooks/GetRecentNotebooksWithIncludePersonalNotebooksResponse.cs
@@ -20,7 +20,7 @@ public partial class GetRecentNotebooksWithIncludePersonalNotebooksResponse : gl
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
index 72eda15503f..cb96cacbe2a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("notebookFolder", NotebookFolder);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
index 46aecf76d87..7d4abc63cc6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/CopyNotebook/CopyNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.CopyNotebook.CopyNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
index 8437311d378..4f10e9da64c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/NotebookItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Notebook> PatchAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index f8e54bbfad2..01ff7a0cc0a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index cf8d0ba8fae..d4f56d13334 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index a57726d9231..65686394859 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 719fb8e0ce6..f445d8677c4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 3511a855d11..d6eeacbb532 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 49677ded458..cf191c54230 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index d29088b45af..5a6da89ce5f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index a4d98d9e3ad..c278828c80a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index d7dc6610570..ba67693c299 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index fe279d06a87..fa39bfe66a5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 442e7070b7f..f1233e7923f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 461030d2a07..491e7da7106 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 95e25d9b170..285bba13c2e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index c056034c347..696dbb8d7c9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
index a5c0a9391dc..63e93af2ece 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 38254db8519..f10e175937e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index d0c7c348551..6f6c1a0171a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 170dea70c3d..f7bc5df7f86 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 57a26272176..9930fed0af7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 94ae59ca80e..a77d8479777 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index ec743e559bd..40dea7d6081 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 2afbb119b58..adba5e85da4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index b976e326ff6..771a59b796f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index c78e2eef05a..6c1e6c040d2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index c5fe6632e45..e1c612fc92f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 13768eb7b72..6f4767a9e86 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Notebooks.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 4e5ad581d37..44ccce8810c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
index 7b7116bcad7..810bd8c6925 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
index 06dad680edf..de417089f9d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Notebooks/NotebooksRequestBuilder.cs
@@ -90,7 +90,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         /// <param name="includePersonalNotebooks">Usage: includePersonalNotebooks={includePersonalNotebooks}</param>
         public global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder GetRecentNotebooksWithIncludePersonalNotebooks(bool? includePersonalNotebooks)
         {
-            _ = includePersonalNotebooks ?? throw new ArgumentNullException(nameof(includePersonalNotebooks));
+            if(ReferenceEquals(includePersonalNotebooks, null)) throw new ArgumentNullException(nameof(includePersonalNotebooks));
             return new global::Microsoft.Graph.Users.Item.Onenote.Notebooks.GetRecentNotebooksWithIncludePersonalNotebooks.GetRecentNotebooksWithIncludePersonalNotebooksRequestBuilder(PathParameters, RequestAdapter, includePersonalNotebooks);
         }
         /// <summary>
@@ -110,7 +110,7 @@ public NotebooksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Notebook> PostAsync(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -152,7 +152,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Notebook body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/OnenoteRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/OnenoteRequestBuilder.cs
index a1988395b1a..21529f7031f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/OnenoteRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/OnenoteRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Onenote> PatchAsync(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Onenote body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
index fa2d40fb18f..5f0e336602e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/Item/OnenoteOperationItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PatchAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/OperationsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/OperationsRequestBuilder.cs
index 4b4683e6be7..a199a18b50e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/OperationsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Operations/OperationsRequestBuilder.cs
@@ -93,7 +93,7 @@ public OperationsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteOperation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
index f4b0504e493..c00d7853f8c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index 5453ab87bf2..dc9c6e71737 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index cff847911c0..90749f5e1a5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
index 185b4b5c780..434c5a2f366 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index f85b0a68736..ac7c302d3bc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 5f0ae2ffd5e..7f80c7d9463 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Pages.Ite
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/PagesRequestBuilder.cs
index 34bd985a68a..ce8c604f6e1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
index ebd0785aab6..2929f0f4540 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
index b61c9f91f24..c8332db7608 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/Item/OnenoteResourceItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PatchAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/ResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/ResourcesRequestBuilder.cs
index 1ace58f50dc..09f6f9a7b84 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/ResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Resources/ResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.OnenoteResource> PostAsync(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
index fec7d1bc33c..02fe19cd1a0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/SectionGroupItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PatchAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 71afb250ff3..42e579fd63f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 3def09dbc18..7366800bd9d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index 6b7910ee013..667402da229 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index 0dc28f84170..831a5bc7c80 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index e2c45a88293..e56d75fba7a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 27a39928184..3327db4eb1f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index dcbdc0cbb01..ece00018a22 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index a6ba6604050..f432fe75828 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 6240b67466f..63bb208ad69 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 67838bdd2c0..9bdff2c27c0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 24c93722690..5e3608a4f7d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.SectionGr
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.SectionGroups.Item.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
index 0a494a0ac17..5cef4802c88 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
index ce36c38d9e0..fb325af3ecd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/Item/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
index f3d5e68acd9..9ed7f1bcb84 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/SectionGroups/SectionGroupsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionGroupsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.SectionGroup> PostAsync(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.SectionGroup body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
index 2df2ff9fa55..9194fc4e574 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToNotebookPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
index 939cb9af3aa..a4042e40455 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToNotebook/CopyToNotebookRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToNotebookRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToNotebook.CopyToNotebookPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
index a758385f810..b822891b6db 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupPostRequestBody.cs
@@ -116,7 +116,7 @@ public CopyToSectionGroupPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody();
         }
         /// <summary>
@@ -140,7 +140,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("renameAs", RenameAs);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
index b8d5f677fd5..d576ce0d782 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/CopyToSectionGroup/CopyToSectionGroupRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionGroupRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.CopyToSectionGroup.CopyToSectionGroupPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
index 385ae93e01e..1d3322d72a7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/OnenoteSectionItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PatchAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
index 543cc879789..336b93bef7b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
index ef011f78a6a..25fec7bdfdc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionPostRequestBody.cs
@@ -100,7 +100,7 @@ public CopyToSectionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody();
         }
         /// <summary>
@@ -123,7 +123,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("groupId", GroupId);
             writer.WriteStringValue("id", Id);
             writer.WriteStringValue("siteCollectionId", SiteCollectionId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
index 151221e26c1..af9fede0407 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/CopyToSection/CopyToSectionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CopyToSectionRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.OnenoteOperation> PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.CopyToSection.CopyToSectionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
index 8feda4f9188..880cc6dc600 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePageItemRequestBuilder.cs
@@ -132,7 +132,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PatchAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -193,7 +193,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
index 5c3da3b8724..9d70539d240 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentPostRequestBody.cs
@@ -53,7 +53,7 @@ public OnenotePatchContentPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.OnenotePatchContentCommand>("commands", Commands);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
index 1b84e8cc0a0..bd4aab67018 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/Item/OnenotePatchContent/OnenotePatchContentRequestBuilder.cs
@@ -49,7 +49,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Sections.
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -72,7 +72,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Onenote.Sections.Item.Pages.Item.OnenotePatchContent.OnenotePatchContentPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
index afd89173587..f30eadcb296 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/Item/Pages/PagesRequestBuilder.cs
@@ -93,7 +93,7 @@ public PagesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.OnenotePage> PostAsync(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenotePage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/SectionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/SectionsRequestBuilder.cs
index 16f8687db61..8737a4a6a36 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/SectionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Onenote/Sections/SectionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public SectionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.OnenoteSection> PostAsync(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnenoteSection body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
index be87272f75a..6bf942abf99 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetPostRequestBody.cs
@@ -113,7 +113,7 @@ public CreateOrGetPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody();
         }
         /// <summary>
@@ -138,7 +138,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.ChatInfo>("chatInfo", ChatInfo);
             writer.WriteDateTimeOffsetValue("endDateTime", EndDateTime);
             writer.WriteStringValue("externalId", ExternalId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
index 0ed5fc2190e..c69c30261e4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/CreateOrGet/CreateOrGetRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateOrGetRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PostAsync(global::Microsoft.Graph.Users.Item.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.OnlineMeetings.CreateOrGet.CreateOrGetPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index 1dbce17f5c2..a88223cde1a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserI
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecording>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
index 1d6d9e8676b..8b8416a51be 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserI
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllRecordingsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
index da77a6750ac..777bccdcc62 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUser
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallTranscript>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
index 73789339bcf..821f079c759 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime/GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUser
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTime.GetAllTranscriptsmeetingOrganizerUserIdMeetingOrganizerUserIdWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
index 86db570e89a..6d950083322 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/AttendanceReportsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AttendanceReportsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PostAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
index a818d05cbc9..d253041c546 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/AttendanceRecordsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AttendanceRecordsRequestBuilder(string rawUrl, IRequestAdapter requestAda
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PostAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
index 5c34054ebaf..3ad84e45644 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/AttendanceRecords/Item/AttendanceRecordItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttendanceRecord> PatchAsync(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttendanceRecord body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
index 9f1e1ed8e86..88523a2d576 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendanceReports/Item/MeetingAttendanceReportItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.MeetingAttendanceReport> PatchAsync(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.MeetingAttendanceReport body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
index 5c720ce7a55..b1f05e00d0f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/AttendeeReport/AttendeeReportRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
index 2697213b71c..e62c8e6ed03 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlGetResponse.cs
@@ -52,7 +52,7 @@ public GetVirtualAppointmentJoinWebUrlGetResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlGetResponse();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
index 433370b2677..02cd3ce3b76 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/GetVirtualAppointmentJoinWebUrl/GetVirtualAppointmentJoinWebUrlResponse.cs
@@ -20,7 +20,7 @@ public partial class GetVirtualAppointmentJoinWebUrlResponse : global::Microsoft
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.GetVirtualAppointmentJoinWebUrl.GetVirtualAppointmentJoinWebUrlResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
index 159b21b1c37..71b71d02294 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/OnlineMeetingItemRequestBuilder.cs
@@ -138,7 +138,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PatchAsync(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -199,7 +199,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
index ce364834bdf..ff6bf8b9b8e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Recordings.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Recordings.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallRecording>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
index 1c09b5d6c3d..30ec87d36a3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.OnlineMe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Recordings.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Recordings.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
index 18e83d9036a..35ee930a16a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/CallRecordingItemRequestBuilder.cs
@@ -103,7 +103,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallRecording> PatchAsync(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -164,7 +164,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
index 70ab621e72a..6ad685fab61 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.CallRecording> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
index 1202688fb2a..9e09a8a0fbd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Recordings/RecordingsRequestBuilder.cs
@@ -99,7 +99,7 @@ public RecordingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.CallRecording> PostAsync(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallRecording body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
index b3c26691578..7fa8ac9704e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendVirtualAppointmentReminderSmsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeNotificationInfo>("attendees", Attendees);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.RemindBeforeTimeInMinutesType>("remindBeforeTimeInMinutesType", RemindBeforeTimeInMinutesType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
index ddfb50e8f3d..1c735c7825f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentReminderSms/SendVirtualAppointmentReminderSmsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.OnlineMeetings.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentReminderSms.SendVirtualAppointmentReminderSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
index 8f06fcab820..f3cba83b2a5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendVirtualAppointmentSmsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.AttendeeNotificationInfo>("attendees", Attendees);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.VirtualAppointmentMessageType>("messageType", MessageType);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
index 174c78bc7a7..05c05cab53c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/SendVirtualAppointmentSms/SendVirtualAppointmentSmsRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.OnlineMeetings.It
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.SendVirtualAppointmentSms.SendVirtualAppointmentSmsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
index bc3c51c5ddd..aabee00a262 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Transcripts.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Transcripts.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.CallTranscript>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
index 5a4e72c1e2a..0553aecb3ec 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.OnlineMe
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Transcripts.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.OnlineMeetings.Item.Transcripts.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
index 4a9684017a1..f48b779c62a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/CallTranscriptItemRequestBuilder.cs
@@ -109,7 +109,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PatchAsync(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -170,7 +170,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
index 0376cc9b88b..e97034e478e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/Content/ContentRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
index 7b8d2429ead..c5a4c359cc8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/Item/MetadataContent/MetadataContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
index 5fd740e8df2..660de5703e5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/Item/Transcripts/TranscriptsRequestBuilder.cs
@@ -100,7 +100,7 @@ public TranscriptsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.CallTranscript> PostAsync(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -142,7 +142,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.CallTranscript body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/OnlineMeetingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
index 3604e558977..08d4bad0490 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/OnlineMeetings/OnlineMeetingsRequestBuilder.cs
@@ -111,7 +111,7 @@ public OnlineMeetingsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.OnlineMeeting> PostAsync(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -153,7 +153,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OnlineMeeting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs
index aba1d2c1dae..560ad630046 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/Item/OutlookCategoryItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.OutlookCategory> PatchAsync(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs
index 669fead657e..0335c9ac6e8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/MasterCategories/MasterCategoriesRequestBuilder.cs
@@ -93,7 +93,7 @@ public MasterCategoriesRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.OutlookCategory> PostAsync(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.OutlookCategory body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs
index 67f3294b7f0..771a02052eb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SupportedLanguagesGetResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Outlook.SupportedLanguages.SupportedLanguagesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Outlook.SupportedLanguages.SupportedLanguagesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.LocaleInfo>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs
index f9ec472ff59..e88d4717946 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedLanguages/SupportedLanguagesResponse.cs
@@ -20,7 +20,7 @@ public partial class SupportedLanguagesResponse : global::Microsoft.Graph.Users.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Outlook.SupportedLanguages.SupportedLanguagesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Outlook.SupportedLanguages.SupportedLanguagesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs
index fb45eb478bb..e075b66b329 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SupportedTimeZonesGetResponse : global::Microsoft.Graph.Mod
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZones.SupportedTimeZonesGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZones.SupportedTimeZonesGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeZoneInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs
index d835cca02a4..e733fd8eb0e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZones/SupportedTimeZonesResponse.cs
@@ -20,7 +20,7 @@ public partial class SupportedTimeZonesResponse : global::Microsoft.Graph.Users.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZones.SupportedTimeZonesResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZones.SupportedTimeZonesResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs
index ead159989d1..573e980db53 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardGetResponse.cs
@@ -36,7 +36,7 @@ public partial class SupportedTimeZonesWithTimeZoneStandardGetResponse : global:
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TimeZoneInformation>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs
index 3a840abbd0a..c338235e1ce 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Outlook/SupportedTimeZonesWithTimeZoneStandard/SupportedTimeZonesWithTimeZoneStandardResponse.cs
@@ -20,7 +20,7 @@ public partial class SupportedTimeZonesWithTimeZoneStandardResponse : global::Mi
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Outlook.SupportedTimeZonesWithTimeZoneStandard.SupportedTimeZonesWithTimeZoneStandardResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
index 0d6a21c8031..ec4e7524256 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/Item/ResourceSpecificPermissionGrantItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PatchAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
index 6b6fa536174..c3110a5b1cc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/PermissionGrants/PermissionGrantsRequestBuilder.cs
@@ -94,7 +94,7 @@ public PermissionGrantsRequestBuilder(string rawUrl, IRequestAdapter requestAdap
         public async Task<global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant> PostAsync(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -136,7 +136,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ResourceSpecificPermissionGrant body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Photo/PhotoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Photo/PhotoRequestBuilder.cs
index c1c13d0928e..e2dad0bba8b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Photo/PhotoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Photo/PhotoRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ProfilePhoto> PatchAsync(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ProfilePhoto body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Photo/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Photo/Value/ContentRequestBuilder.cs
index 373ecdba3f0..7086b857436 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Photo/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Photo/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Photos/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Photos/Item/Value/ContentRequestBuilder.cs
index bf59a935944..578cf05f081 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Photos/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Photos/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/PlannerRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/PlannerRequestBuilder.cs
index 1ab5e0e6b8d..7707e38c893 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/PlannerRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/PlannerRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerUser> PatchAsync(global::Microsoft.Graph.Models.PlannerUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerUser body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
index 69213c6251a..d0f41bdff20 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/BucketsRequestBuilder.cs
@@ -93,7 +93,7 @@ public BucketsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PostAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
index 8172615e84d..70ee4c7c654 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/PlannerBucketItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucket> PatchAsync(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucket body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 1a2c8ffb99b..5752d366839 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index f00717d956f..a2b051a9fd4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index 39151fb4ba1..a1375742799 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index 16caa9cd501..c931750115a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index c7642a7f21e..d235bfa0b6d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
index 2cb0d1b9fb1..8c0eb1cee36 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Buckets/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
index f93c1f59ff5..ff8a20922ae 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlanDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlanDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
index ca7d7e0472b..208be3e1df1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/PlannerPlanItemRequestBuilder.cs
@@ -114,7 +114,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PatchAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -175,7 +175,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index afb71a7cb3c..9824b110a97 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index e22bf865e4b..96eae039cb9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
index bc3396a1403..5366d88de51 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index b334d069858..867f4eb5e1c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index cb0bda7769c..25a7f257a0e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
index f5969ed6aba..c2fa043c28d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/Item/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/PlansRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/PlansRequestBuilder.cs
index 222306de34e..cb92919a3bc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/PlansRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Plans/PlansRequestBuilder.cs
@@ -93,7 +93,7 @@ public PlansRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerPlan> PostAsync(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerPlan body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
index 46d01bbac37..6ab462d58a8 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/AssignedToTaskBoardFormat/AssignedToTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerAssignedToTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
index 0ba59a961d6..06ed6d78341 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/BucketTaskBoardFormat/BucketTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerBucketTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
index f03dac55545..d92878dccd2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/Details/DetailsRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTaskDetails> PatchAsync(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTaskDetails body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
index f3a61e77437..6220b0a9fc5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/PlannerTaskItemRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PatchAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
index db487864a99..f5f908b958f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/Item/ProgressTaskBoardFormat/ProgressTaskBoardFormatRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat> PatchAsync(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.PlannerProgressTaskBoardTaskFormat body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/TasksRequestBuilder.cs
index 2552055ffa5..39aeb9a4d6b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Planner/Tasks/TasksRequestBuilder.cs
@@ -93,7 +93,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.PlannerTask> PostAsync(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.PlannerTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresencePostRequestBody.cs
index 96d632c717e..02fedaaeea9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresencePostRequestBody.cs
@@ -52,7 +52,7 @@ public ClearPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Presence.ClearPresence.ClearPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Presence.ClearPresence.ClearPresencePostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("sessionId", SessionId);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresenceRequestBuilder.cs
index 61fef4a6f29..78e55b7835e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/ClearPresence/ClearPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.ClearPre
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.ClearPresence.ClearPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Presence.ClearPresence.ClearPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/PresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/PresenceRequestBuilder.cs
index bc25f2f806a..18374898a8e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/PresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/PresenceRequestBuilder.cs
@@ -127,7 +127,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Presence> PatchAsync(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -188,7 +188,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Presence body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresencePostRequestBody.cs
index a346f97e69e..c240fb06f33 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresencePostRequestBody.cs
@@ -90,7 +90,7 @@ public SetPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Presence.SetPresence.SetPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Presence.SetPresence.SetPresencePostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activity", Activity);
             writer.WriteStringValue("availability", Availability);
             writer.WriteTimeSpanValue("expirationDuration", ExpirationDuration);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresenceRequestBuilder.cs
index 2b19fc39334..d0d9530ba6c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetPresence/SetPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.SetPrese
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.SetPresence.SetPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Presence.SetPresence.SetPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs
index 618ff7c5959..be30fd88af7 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessagePostRequestBody.cs
@@ -53,7 +53,7 @@ public SetStatusMessagePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Presence.SetStatusMessage.SetStatusMessagePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Presence.SetStatusMessage.SetStatusMessagePostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.PresenceStatusMessage>("statusMessage", StatusMessage);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs
index a0e26c64deb..18be3f57aa3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetStatusMessage/SetStatusMessageRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.SetStatu
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.SetStatusMessage.SetStatusMessagePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Presence.SetStatusMessage.SetStatusMessagePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
index e1239adc2f4..b5a487ff2e1 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresencePostRequestBody.cs
@@ -74,7 +74,7 @@ public SetUserPreferredPresencePostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody();
         }
         /// <summary>
@@ -96,7 +96,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activity", Activity);
             writer.WriteStringValue("availability", Availability);
             writer.WriteTimeSpanValue("expirationDuration", ExpirationDuration);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
index 288c86d31d3..9bbfc86650e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Presence/SetUserPreferredPresence/SetUserPreferredPresenceRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.SetUserP
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Presence.SetUserPreferredPresence.SetUserPreferredPresencePostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs
index ef498ec148f..2c2ee480beb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeGetResponse.cs
@@ -36,7 +36,7 @@ public partial class ReminderViewWithStartDateTimeWithEndDateTimeGetResponse : g
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.Reminder>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs
index bfca30dc6b6..e879c65a707 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ReminderViewWithStartDateTimeWithEndDateTime/ReminderViewWithStartDateTimeWithEndDateTimeResponse.cs
@@ -20,7 +20,7 @@ public partial class ReminderViewWithStartDateTimeWithEndDateTimeResponse : glob
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.ReminderViewWithStartDateTimeWithEndDateTime.ReminderViewWithStartDateTimeWithEndDateTimeResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs
index 9156987a50f..754cd1f8ddb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsPostResponse.cs
@@ -42,7 +42,7 @@ public RevokeSignInSessionsPostResponse()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.RevokeSignInSessions.RevokeSignInSessionsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.RevokeSignInSessions.RevokeSignInSessionsPostResponse();
         }
         /// <summary>
@@ -62,7 +62,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteBoolValue("value", Value);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsResponse.cs
index 4586db514bb..da89266ad1c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/RevokeSignInSessions/RevokeSignInSessionsResponse.cs
@@ -20,7 +20,7 @@ public partial class RevokeSignInSessionsResponse : global::Microsoft.Graph.User
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.RevokeSignInSessions.RevokeSignInSessionsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.RevokeSignInSessions.RevokeSignInSessionsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs
index a7f6eac8bc4..39ef9a6b33d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/Item/ScopedRoleMembershipItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PatchAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs
index 4692a85d528..c7611b8bf44 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/ScopedRoleMemberOf/ScopedRoleMemberOfRequestBuilder.cs
@@ -93,7 +93,7 @@ public ScopedRoleMemberOfRequestBuilder(string rawUrl, IRequestAdapter requestAd
         public async Task<global::Microsoft.Graph.Models.ScopedRoleMembership> PostAsync(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ScopedRoleMembership body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailPostRequestBody.cs
index 6f610ad26f4..58552255300 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailPostRequestBody.cs
@@ -59,7 +59,7 @@ public SendMailPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.SendMail.SendMailPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.SendMail.SendMailPostRequestBody();
         }
         /// <summary>
@@ -80,7 +80,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.Message>("Message", Message);
             writer.WriteBoolValue("SaveToSentItems", SaveToSentItems);
             writer.WriteAdditionalData(AdditionalData);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailRequestBuilder.cs
index 2acf8e0a02e..efe0bdea02f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/SendMail/SendMailRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.SendMail.SendMail
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.SendMail.SendMailPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.SendMail.SendMailPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/ItemInsights/ItemInsightsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/ItemInsights/ItemInsightsRequestBuilder.cs
index e278ee89afa..61818270324 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/ItemInsights/ItemInsightsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/ItemInsights/ItemInsightsRequestBuilder.cs
@@ -97,7 +97,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserInsightsSettings> PatchAsync(global::Microsoft.Graph.Models.UserInsightsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -158,7 +158,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserInsightsSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/SettingsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/SettingsRequestBuilder.cs
index 7a948949910..d0f3d1c3ce0 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/SettingsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/SettingsRequestBuilder.cs
@@ -120,7 +120,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserSettings> PatchAsync(global::Microsoft.Graph.Models.UserSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -181,7 +181,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserSettings body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs
index a19d02bb561..a2bdbfd3bf5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/ShiftPreferences/ShiftPreferencesRequestBuilder.cs
@@ -98,7 +98,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ShiftPreferences> PatchAsync(global::Microsoft.Graph.Models.ShiftPreferences body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -159,7 +159,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ShiftPreferences body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/QuotaRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/QuotaRequestBuilder.cs
index 32c06e0f32d..7fa17246e14 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/QuotaRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/QuotaRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UnifiedStorageQuota> PatchAsync(global::Microsoft.Graph.Models.UnifiedStorageQuota body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UnifiedStorageQuota body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
index 218c9d09f7d..baae2e2bb6c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/Item/ServiceStorageQuotaBreakdownItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown> PatchAsync(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs
index 6af126833e9..4b021e25ab3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/Quota/Services/ServicesRequestBuilder.cs
@@ -93,7 +93,7 @@ public ServicesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : b
         public async Task<global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown> PostAsync(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ServiceStorageQuotaBreakdown body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/StorageRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/StorageRequestBuilder.cs
index a0429b1b945..e239f3181fb 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/StorageRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Storage/StorageRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserStorage> PatchAsync(global::Microsoft.Graph.Models.UserStorage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserStorage body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs
index 144984030c7..dcb35a41b41 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/InstancesRequestBuilder.cs
@@ -93,7 +93,7 @@ public InstancesRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.WindowsSettingInstance> PostAsync(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs
index 801c5712ad9..cdad576ffb6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/Instances/Item/WindowsSettingInstanceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsSettingInstance> PatchAsync(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsSettingInstance body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs
index 25606509cd1..ecaca73c580 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/Item/WindowsSettingItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WindowsSetting> PatchAsync(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/WindowsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/WindowsRequestBuilder.cs
index fc78922b322..bfee0434f05 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/WindowsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Settings/Windows/WindowsRequestBuilder.cs
@@ -93,7 +93,7 @@ public WindowsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : ba
         public async Task<global::Microsoft.Graph.Models.WindowsSetting> PostAsync(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.WindowsSetting body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Solutions/SolutionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Solutions/SolutionsRequestBuilder.cs
index bd1e14c6f96..d48d3142221 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Solutions/SolutionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Solutions/SolutionsRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserSolutionRoot> PatchAsync(global::Microsoft.Graph.Models.UserSolutionRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserSolutionRoot body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs
index 06f02317764..03400afd573 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Solutions/WorkingTimeSchedule/WorkingTimeScheduleRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.WorkingTimeSchedule> PatchAsync(global::Microsoft.Graph.Models.WorkingTimeSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.WorkingTimeSchedule body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs
index 084cf458613..0848790fa89 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/AssociatedTeamsRequestBuilder.cs
@@ -93,7 +93,7 @@ public AssociatedTeamsRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.AssociatedTeamInfo> PostAsync(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs
index bb9c8a36c21..e2d84c8a0b3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/AssociatedTeams/Item/AssociatedTeamInfoItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AssociatedTeamInfo> PatchAsync(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AssociatedTeamInfo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs
index 28cb4f55d6c..d2ec35d7679 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/InstalledAppsRequestBuilder.cs
@@ -95,7 +95,7 @@ public InstalledAppsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter
         public async Task<global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation> PostAsync(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -137,7 +137,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs
index 0bd899905ab..588c2ef1df6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/InstalledApps/Item/UserScopeTeamsAppInstallationItemRequestBuilder.cs
@@ -116,7 +116,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation> PatchAsync(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -177,7 +177,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserScopeTeamsAppInstallation body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
index cc504715e50..e68e1106d64 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationPostRequestBody.cs
@@ -139,7 +139,7 @@ public SendActivityNotificationPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody();
         }
         /// <summary>
@@ -165,7 +165,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("activityType", ActivityType);
             writer.WriteLongValue("chainId", ChainId);
             writer.WriteStringValue("iconId", IconId);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
index 34af3ecff59..36ce337409b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/SendActivityNotification/SendActivityNotificationRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.Teamwork.SendActi
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Teamwork.SendActivityNotification.SendActivityNotificationPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/TeamworkRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/TeamworkRequestBuilder.cs
index f2c9f957272..0a88becf0b5 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Teamwork/TeamworkRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Teamwork/TeamworkRequestBuilder.cs
@@ -115,7 +115,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.UserTeamwork> PatchAsync(global::Microsoft.Graph.Models.UserTeamwork body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -176,7 +176,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.UserTeamwork body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaGetResponse.cs
index de120e19d59..a32d56f73cc 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Todo.Lists.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Todo.Lists.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TodoTaskList>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaResponse.cs
index bad023078b5..347f51da88f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Todo.Lis
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Todo.Lists.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Todo.Lists.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs
index dfaf30d6547..2901fd46ed9 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index d3860aa560a..51fcb88786b 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs
index ec0d2a6f7d6..6c0dc365da3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaGetResponse.cs
@@ -36,7 +36,7 @@ public partial class DeltaGetResponse : global::Microsoft.Graph.Models.BaseDelta
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Delta.DeltaGetResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Delta.DeltaGetResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.TodoTask>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs
index b5879cd2e03..b57eeb50f9c 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Delta/DeltaResponse.cs
@@ -20,7 +20,7 @@ public partial class DeltaResponse : global::Microsoft.Graph.Users.Item.Todo.Lis
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Delta.DeltaResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Delta.DeltaResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs
index b7050afb032..bbe3ab793a4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/AttachmentSessionItemRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.AttachmentSession> PatchAsync(global::Microsoft.Graph.Models.AttachmentSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.AttachmentSession body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs
index f34be54fe58..29247168db2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/AttachmentSessions/Item/Content/ContentRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<global::Microsoft.Graph.Models.AttachmentSession> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs
index b17d49f317e..6b69b9bb0a3 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/AttachmentsRequestBuilder.cs
@@ -99,7 +99,7 @@ public AttachmentsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter)
         public async Task<global::Microsoft.Graph.Models.AttachmentBase> PostAsync(global::Microsoft.Graph.Models.AttachmentBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.AttachmentBase body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
index 1bdcbdbc17c..5321ffef3a6 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionPostRequestBody.cs
@@ -53,7 +53,7 @@ public CreateUploadSessionPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody();
         }
         /// <summary>
@@ -73,7 +73,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteObjectValue<global::Microsoft.Graph.Models.AttachmentInfo>("attachmentInfo", AttachmentInfo);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
index d7fee9c4712..7b4e6ce42cd 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/CreateUploadSession/CreateUploadSessionRequestBuilder.cs
@@ -52,7 +52,7 @@ public CreateUploadSessionRequestBuilder(string rawUrl, IRequestAdapter requestA
         public async Task<global::Microsoft.Graph.Models.UploadSession> PostAsync(global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -75,7 +75,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.Todo.Lists.Item.Tasks.Item.Attachments.CreateUploadSession.CreateUploadSessionPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs
index 481ba4476e8..a94ce17da5f 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Attachments/Item/Value/ContentRequestBuilder.cs
@@ -95,7 +95,7 @@ public async Task<Stream> GetAsync(Action<RequestConfiguration<DefaultQueryParam
         public async Task<Stream> PutAsync(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPutRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -156,7 +156,7 @@ public RequestInformation ToPutRequestInformation(Stream body, Action<RequestCon
         public RequestInformation ToPutRequestInformation(Stream body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PUT, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs
index 33f5f7a154d..b5c6fb9fc47 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/ChecklistItemsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ChecklistItemsRequestBuilder(string rawUrl, IRequestAdapter requestAdapte
         public async Task<global::Microsoft.Graph.Models.ChecklistItem> PostAsync(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs
index 017465e6f88..67030524834 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/ChecklistItems/Item/ChecklistItemItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.ChecklistItem> PatchAsync(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.ChecklistItem body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs
index fcbf0b28a6f..70e6613c568 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/ExtensionsRequestBuilder.cs
@@ -93,7 +93,7 @@ public ExtensionsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) :
         public async Task<global::Microsoft.Graph.Models.Extension> PostAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
index 24b14ef72ae..e361f6b2162 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/Extensions/Item/ExtensionItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Extension> PatchAsync(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Extension body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs
index e4a4a631093..97ad18a079d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/Item/LinkedResourceItemRequestBuilder.cs
@@ -96,7 +96,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.LinkedResource> PatchAsync(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -157,7 +157,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs
index 302a84d24bb..e6301175c21 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/LinkedResources/LinkedResourcesRequestBuilder.cs
@@ -93,7 +93,7 @@ public LinkedResourcesRequestBuilder(string rawUrl, IRequestAdapter requestAdapt
         public async Task<global::Microsoft.Graph.Models.LinkedResource> PostAsync(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -135,7 +135,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.LinkedResource body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs
index f45e3d9e77c..d7f506b26c4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/Item/TodoTaskItemRequestBuilder.cs
@@ -126,7 +126,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TodoTask> PatchAsync(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -187,7 +187,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs
index 8f37c97255a..a4070a18332 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/Tasks/TasksRequestBuilder.cs
@@ -99,7 +99,7 @@ public TasksRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TodoTask> PostAsync(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TodoTask body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs
index 0b66ed55946..fc1bfe5d918 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/Item/TodoTaskListItemRequestBuilder.cs
@@ -108,7 +108,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.TodoTaskList> PatchAsync(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -169,7 +169,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/ListsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/ListsRequestBuilder.cs
index 9975a25f88a..a80e854f813 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/ListsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/Lists/ListsRequestBuilder.cs
@@ -99,7 +99,7 @@ public ListsRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.TodoTaskList> PostAsync(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -141,7 +141,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.TodoTaskList body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/Todo/TodoRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/Todo/TodoRequestBuilder.cs
index d7ebad3fdb4..fb323f9b693 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/Todo/TodoRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/Todo/TodoRequestBuilder.cs
@@ -102,7 +102,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.Todo> PatchAsync(global::Microsoft.Graph.Models.Todo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -163,7 +163,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.Todo body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs
index c775af6f279..ccb5029b43e 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostRequestBody.cs
@@ -65,7 +65,7 @@ public TranslateExchangeIdsPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody();
         }
         /// <summary>
@@ -87,7 +87,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteCollectionOfPrimitiveValues<string>("InputIds", InputIds);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExchangeIdFormat>("SourceIdType", SourceIdType);
             writer.WriteEnumValue<global::Microsoft.Graph.Models.ExchangeIdFormat>("TargetIdType", TargetIdType);
diff --git a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs
index b633bbacf24..b91ec261d2a 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsPostResponse.cs
@@ -36,7 +36,7 @@ public partial class TranslateExchangeIdsPostResponse : global::Microsoft.Graph.
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostResponse();
         }
         /// <summary>
@@ -56,7 +56,7 @@ public override IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public override void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             base.Serialize(writer);
             writer.WriteCollectionOfObjectValues<global::Microsoft.Graph.Models.ConvertIdResult>("value", Value);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs
index 0c2a7d55631..018a6fef4b2 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsRequestBuilder.cs
@@ -51,7 +51,7 @@ public TranslateExchangeIdsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostResponse> PostAsTranslateExchangeIdsPostResponseAsync(global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -78,7 +78,7 @@ public TranslateExchangeIdsRequestBuilder(string rawUrl, IRequestAdapter request
         public async Task<global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsResponse> PostAsync(global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -101,7 +101,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsResponse.cs b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsResponse.cs
index 02d0fa41b44..48ac2175f08 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsResponse.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/TranslateExchangeIds/TranslateExchangeIdsResponse.cs
@@ -20,7 +20,7 @@ public partial class TranslateExchangeIdsResponse : global::Microsoft.Graph.User
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static new global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsResponse CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.TranslateExchangeIds.TranslateExchangeIdsResponse();
         }
     }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/UserItemRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/UserItemRequestBuilder.cs
index e8e78147cfd..2500ad6bf02 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/UserItemRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/UserItemRequestBuilder.cs
@@ -517,8 +517,8 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         /// <param name="top">Usage: top={top}</param>
         public global::Microsoft.Graph.Users.Item.ExportDeviceAndAppManagementDataWithSkipWithTop.ExportDeviceAndAppManagementDataWithSkipWithTopRequestBuilder ExportDeviceAndAppManagementDataWithSkipWithTop(int? skip, int? top)
         {
-            _ = skip ?? throw new ArgumentNullException(nameof(skip));
-            _ = top ?? throw new ArgumentNullException(nameof(top));
+            if(ReferenceEquals(skip, null)) throw new ArgumentNullException(nameof(skip));
+            if(ReferenceEquals(top, null)) throw new ArgumentNullException(nameof(top));
             return new global::Microsoft.Graph.Users.Item.ExportDeviceAndAppManagementDataWithSkipWithTop.ExportDeviceAndAppManagementDataWithSkipWithTopRequestBuilder(PathParameters, RequestAdapter, skip, top);
         }
         /// <summary>
@@ -547,7 +547,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         }
         /// <summary>
         /// Update the properties of a user object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/user-update?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-user-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.User"/></returns>
         /// <param name="body">The request body</param>
@@ -563,7 +563,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.User> PatchAsync(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -636,7 +636,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs
index 7cb953dcb54..27a3bb2748d 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagPostRequestBody.cs
@@ -52,7 +52,7 @@ public WipeManagedAppRegistrationsByDeviceTagPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.Item.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.Item.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody();
         }
         /// <summary>
@@ -72,7 +72,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("deviceTag", DeviceTag);
             writer.WriteAdditionalData(AdditionalData);
         }
diff --git a/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs
index 03b9a4a1db4..76250606cd4 100644
--- a/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/Item/WipeManagedAppRegistrationsByDeviceTag/WipeManagedAppRegistrationsByDeviceTagRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.Item.WipeManagedAppReg
         public async Task PostAsync(global::Microsoft.Graph.Users.Item.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.Item.WipeManagedAppRegistrationsByDeviceTag.WipeManagedAppRegistrationsByDeviceTagPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/Users/UsersRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/UsersRequestBuilder.cs
index c7f7767ef33..78f09fb19f5 100644
--- a/src/Microsoft.Graph/Generated/Users/UsersRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/UsersRequestBuilder.cs
@@ -78,8 +78,8 @@ public UsersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         {
         }
         /// <summary>
-        /// List properties and relationships of the user objects.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-user-list?view=graph-rest-1.0" />
+        /// Retrieve a list of user objects.
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/user-list?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.UserCollectionResponse"/></returns>
         /// <param name="cancellationToken">Cancellation token to use when cancelling requests</param>
@@ -119,7 +119,7 @@ public UsersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
         public async Task<global::Microsoft.Graph.Models.User> PostAsync(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -128,7 +128,7 @@ public UsersRequestBuilder(string rawUrl, IRequestAdapter requestAdapter) : base
             return await RequestAdapter.SendAsync<global::Microsoft.Graph.Models.User>(requestInfo, global::Microsoft.Graph.Models.User.CreateFromDiscriminatorValue, errorMapping, cancellationToken).ConfigureAwait(false);
         }
         /// <summary>
-        /// List properties and relationships of the user objects.
+        /// Retrieve a list of user objects.
         /// </summary>
         /// <returns>A <see cref="RequestInformation"/></returns>
         /// <param name="requestConfiguration">Configuration for the request such as headers, query parameters, and middleware options.</param>
@@ -161,7 +161,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
@@ -178,7 +178,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Model
             return new global::Microsoft.Graph.Users.UsersRequestBuilder(rawUrl, RequestAdapter);
         }
         /// <summary>
-        /// List properties and relationships of the user objects.
+        /// Retrieve a list of user objects.
         /// </summary>
         [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.0.0")]
         public partial class UsersRequestBuilderGetQueryParameters 
diff --git a/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesPostRequestBody.cs b/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesPostRequestBody.cs
index 4df8d4e215f..b64bb6d714f 100644
--- a/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesPostRequestBody.cs
+++ b/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesPostRequestBody.cs
@@ -90,7 +90,7 @@ public ValidatePropertiesPostRequestBody()
         /// <param name="parseNode">The parse node to use to read the discriminator value and create the object</param>
         public static global::Microsoft.Graph.Users.ValidateProperties.ValidatePropertiesPostRequestBody CreateFromDiscriminatorValue(IParseNode parseNode)
         {
-            _ = parseNode ?? throw new ArgumentNullException(nameof(parseNode));
+            if(ReferenceEquals(parseNode, null)) throw new ArgumentNullException(nameof(parseNode));
             return new global::Microsoft.Graph.Users.ValidateProperties.ValidatePropertiesPostRequestBody();
         }
         /// <summary>
@@ -113,7 +113,7 @@ public virtual IDictionary<string, Action<IParseNode>> GetFieldDeserializers()
         /// <param name="writer">Serialization writer to use to serialize this model</param>
         public virtual void Serialize(ISerializationWriter writer)
         {
-            _ = writer ?? throw new ArgumentNullException(nameof(writer));
+            if(ReferenceEquals(writer, null)) throw new ArgumentNullException(nameof(writer));
             writer.WriteStringValue("displayName", DisplayName);
             writer.WriteStringValue("entityType", EntityType);
             writer.WriteStringValue("mailNickname", MailNickname);
diff --git a/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesRequestBuilder.cs b/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesRequestBuilder.cs
index 188bc8c5d1c..dc5a3887bf8 100644
--- a/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/Users/ValidateProperties/ValidatePropertiesRequestBuilder.cs
@@ -50,7 +50,7 @@ public async Task PostAsync(global::Microsoft.Graph.Users.ValidateProperties.Val
         public async Task PostAsync(global::Microsoft.Graph.Users.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPostRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -73,7 +73,7 @@ public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users
         public RequestInformation ToPostRequestInformation(global::Microsoft.Graph.Users.ValidateProperties.ValidatePropertiesPostRequestBody body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.POST, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/UsersWithUserPrincipalName/UsersWithUserPrincipalNameRequestBuilder.cs b/src/Microsoft.Graph/Generated/UsersWithUserPrincipalName/UsersWithUserPrincipalNameRequestBuilder.cs
index 64149d6467b..7c6dd48acf6 100644
--- a/src/Microsoft.Graph/Generated/UsersWithUserPrincipalName/UsersWithUserPrincipalNameRequestBuilder.cs
+++ b/src/Microsoft.Graph/Generated/UsersWithUserPrincipalName/UsersWithUserPrincipalNameRequestBuilder.cs
@@ -85,7 +85,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         }
         /// <summary>
         /// Update the properties of a user object.
-        /// Find more info here <see href="https://learn.microsoft.com/graph/api/user-update?view=graph-rest-1.0" />
+        /// Find more info here <see href="https://learn.microsoft.com/graph/api/intune-mam-user-update?view=graph-rest-1.0" />
         /// </summary>
         /// <returns>A <see cref="global::Microsoft.Graph.Models.User"/></returns>
         /// <param name="body">The request body</param>
@@ -101,7 +101,7 @@ public async Task DeleteAsync(Action<RequestConfiguration<DefaultQueryParameters
         public async Task<global::Microsoft.Graph.Models.User> PatchAsync(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default, CancellationToken cancellationToken = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = ToPatchRequestInformation(body, requestConfiguration);
             var errorMapping = new Dictionary<string, ParsableFactory<IParsable>>
             {
@@ -162,7 +162,7 @@ public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Mode
         public RequestInformation ToPatchRequestInformation(global::Microsoft.Graph.Models.User body, Action<RequestConfiguration<DefaultQueryParameters>> requestConfiguration = default)
         {
 #endif
-            _ = body ?? throw new ArgumentNullException(nameof(body));
+            if(ReferenceEquals(body, null)) throw new ArgumentNullException(nameof(body));
             var requestInfo = new RequestInformation(Method.PATCH, UrlTemplate, PathParameters);
             requestInfo.Configure(requestConfiguration);
             requestInfo.Headers.TryAdd("Accept", "application/json");
diff --git a/src/Microsoft.Graph/Generated/kiota-lock.json b/src/Microsoft.Graph/Generated/kiota-lock.json
index 604489b8aa3..d89cf6753a8 100644
--- a/src/Microsoft.Graph/Generated/kiota-lock.json
+++ b/src/Microsoft.Graph/Generated/kiota-lock.json
@@ -1,5 +1,5 @@
 {
-  "descriptionHash": "024C864784E168BE86437FC634CD186DB02E5C4547501683E97595213B74673E02610CBC2CC2C979FC9F53AC82DD04DE54EC135786E35970F32CF22A209B181C",
+  "descriptionHash": "0615F42833EC47F43C6F65AD40BAC4265164B58E5B4943290ACDBDD704365884078C3BB71C25B30A70DB9199E1EC18C94E51945D3630829D48EE39F4DC014485",
   "descriptionLocation": "../../msgraph-metadata/clean_v10_openapi/openapi.yaml",
   "lockFileVersion": "1.0.0",
   "kiotaVersion": "1.29.0",